./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor493882534 <...> d(0, 0 [pid 5318] <... prctl resumed>) = 0 [pid 5316] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5315] close(15 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5317] <... setpgid resumed>) = 0 [pid 5318] setpgid(0, 0 [pid 5316] close(23 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(19 [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5318] <... setpgid resumed>) = 0 [pid 5316] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5315] close(16 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] mkdir("./39", 0777 [pid 5317] <... openat resumed>) = 3 [pid 5318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5316] close(24 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(20 [pid 5316] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5315] close(17 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5317] write(3, "1000", 4 [pid 5316] close(25 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(21 [pid 5317] <... write resumed>) = 4 [pid 5316] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5315] close(18 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... mkdir resumed>) = 0 [pid 5318] <... openat resumed>) = 3 [pid 5316] close(26 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(22 [pid 5317] close(3 [pid 5316] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5315] close(19 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5317] <... close resumed>) = 0 [pid 5318] write(3, "1000", 4 [pid 5316] close(27 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5317] symlink("/dev/binderfs", "./binderfs" [pid 5318] <... write resumed>) = 4 [pid 5316] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5315] close(20 [pid 5317] <... symlink resumed>) = 0 [pid 5318] close(3 [pid 5316] close(28 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(23 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5317] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5318] <... close resumed>) = 0 [pid 5316] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5315] close(21 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5316] close(29 [pid 5317] <... socket resumed>) = 3 [pid 5318] symlink("/dev/binderfs", "./binderfs" [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(24 [pid 5317] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5316] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5315] close(22 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5317] <... socket resumed>) = 4 [pid 5318] <... symlink resumed>) = 0 [pid 5316] exit_group(0 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(25 [pid 5315] close(23 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5317] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5318] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5316] <... exit_group resumed>) = ? [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(26 [pid 5315] close(24 [pid 5318] <... socket resumed>) = 3 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5317] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5315] close(25 [pid 5314] close(27 [pid 5317] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5317] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5317] memfd_create("syzkaller", 0) = 5 [pid 5317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5317] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5317] mkdir("./file0", 000) = 0 [pid 5316] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5317] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5052] newfstatat(3, "", [pid 5318] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5315] close(26 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5317] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5318] <... socket resumed>) = 4 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(28 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... close resumed>) = 0 [pid 5318] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5315] close(27 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5318] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] close(29 [pid 5315] close(28 [pid 5314] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5317] <... mount resumed>) = 0 [pid 5318] memfd_create("syzkaller", 0 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] exit_group(0 [pid 5052] getdents64(3, [pid 5315] close(29 [pid 5318] <... memfd_create resumed>) = 5 [pid 5315] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5314] <... exit_group resumed>) = ? [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5315] exit_group(0 [pid 5052] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5317] open(NULL, O_RDONLY [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5317] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5317] close(3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5317] <... close resumed>) = 0 [pid 5314] +++ exited with 0 +++ [pid 5317] close(4 [pid 5315] <... exit_group resumed>) = ? [pid 5052] unlink("./46/binderfs"./strace-static-x86_64: Process 5319 attached [pid 5317] <... close resumed>) = 0 [pid 5318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] <... unlink resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 41 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5319] set_robust_list(0x5555566e0760, 24 [pid 5317] close(5 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5319] <... set_robust_list resumed>) = 0 [pid 5317] <... close resumed>) = 0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5318] <... mmap resumed>) = 0x7f1263f98000 [pid 5319] chdir("./39" [pid 5317] close(6 [pid 5052] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5315] +++ exited with 0 +++ [pid 5318] mkdir("./file0", 000 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5319] <... chdir resumed>) = 0 [pid 5317] close(7 [pid 5052] <... umount2 resumed>) = 0 [pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5319] <... prctl resumed>) = 0 [pid 5317] close(8 [pid 5319] setpgid(0, 0 [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] <... setpgid resumed>) = 0 [pid 5317] close(9 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./46/file0", [pid 5049] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5319] <... openat resumed>) = 3 [pid 5317] close(10 [pid 5318] <... mkdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5318] symlink(NULL, NULL [pid 5051] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] write(3, "1000", 4 [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(3, "", [pid 5319] <... write resumed>) = 4 [pid 5317] close(11 [pid 5318] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5319] close(3 [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5319] <... close resumed>) = 0 [pid 5317] close(12 [pid 5318] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5319] symlink("/dev/binderfs", "./binderfs" [pid 5317] close(13 [pid 5051] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5319] <... symlink resumed>) = 0 [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5318] <... mount resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5318] open(NULL, O_RDONLY [pid 5317] close(14 [pid 5318] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] close(3 [pid 5051] getdents64(3, [pid 5319] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5317] close(15 [pid 5052] getdents64(4, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5319] <... socket resumed>) = 3 [pid 5317] close(16 [pid 5318] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5319] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5317] close(17 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] unlink("./41/binderfs" [pid 5319] <... socket resumed>) = 4 [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5049] <... unlink resumed>) = 0 [pid 5319] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5317] close(18 [pid 5319] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5319] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5317] close(19 [pid 5049] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5319] memfd_create("syzkaller", 0 [pid 5317] close(20 [pid 5052] rmdir("./46/file0" [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5317] close(21) = -1 EBADF (Bad file descriptor) [pid 5319] <... memfd_create resumed>) = 5 [pid 5317] close(22) = -1 EBADF (Bad file descriptor) [pid 5317] close(23) = -1 EBADF (Bad file descriptor) [pid 5319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5317] close(24 [pid 5319] <... mmap resumed>) = 0x7f1263f98000 [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5317] close(25 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5319] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5319] mkdir("./file0", 000 [pid 5317] close(26 [pid 5318] close(4 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = 0 [pid 5319] <... mkdir resumed>) = 0 [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5049] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] close(5 [pid 5317] close(27 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5318] <... close resumed>) = 0 [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] close(6 [pid 5052] rmdir("./46" [pid 5049] newfstatat(AT_FDCWD, "./41/file0", [pid 5317] close(28 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] unlink("./42/binderfs" [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5319] symlink(NULL, NULL [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] close(7) = -1 EBADF (Bad file descriptor) [pid 5319] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5317] close(29 [pid 5051] <... unlink resumed>) = 0 [pid 5049] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5317] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] close(8 [pid 5052] mkdir("./47", 0777 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5319] <... mount resumed>) = 0 [pid 5317] exit_group(0 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5051] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5318] close(9 [pid 5319] open(NULL, O_RDONLY [pid 5317] <... exit_group resumed>) = ? [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5317] +++ exited with 0 +++ [pid 5318] close(10 [pid 5051] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5318] close(11 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5319] <... open resumed>) = -1 EFAULT (Bad address) [pid 5318] close(12 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] newfstatat(4, "", [pid 5319] close(3 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5319] <... close resumed>) = 0 [pid 5318] close(13 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] newfstatat(AT_FDCWD, "./42/file0", [pid 5049] getdents64(4, [pid 5319] close(4 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5319] <... close resumed>) = 0 [pid 5052] close(3 [pid 5049] getdents64(4, [pid 5319] close(5 [pid 5052] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] close(4 [pid 5319] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5319] close(6 [pid 5049] rmdir("./41/file0" [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5319] close(7 [pid 5049] getdents64(3, [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5319] close(8 [pid 5049] close(3 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5319] close(9 [pid 5049] rmdir("./41" [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5319] close(10) = -1 EBADF (Bad file descriptor) [pid 5319] close(11) = -1 EBADF (Bad file descriptor) [pid 5319] close(12./strace-static-x86_64: Process 5320 attached ) = -1 EBADF (Bad file descriptor) [pid 5319] close(13) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 49 [pid 5319] close(14 [pid 5320] set_robust_list(0x5555566e0760, 24 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] mkdir("./42", 0777 [pid 5320] <... set_robust_list resumed>) = 0 [pid 5319] close(15 [pid 5053] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5320] chdir("./47" [pid 5319] close(16 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... mkdir resumed>) = 0 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5319] close(17 [pid 5320] <... chdir resumed>) = 0 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5319] close(18 [pid 5320] <... prctl resumed>) = 0 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5319] close(19 [pid 5320] setpgid(0, 0 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... setpgid resumed>) = 0 [pid 5319] close(20 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... openat resumed>) = 3 [pid 5319] close(21 [pid 5318] close(14 [pid 5053] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5051] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5319] close(22 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5319] close(23 [pid 5318] close(15 [pid 5051] <... openat resumed>) = 4 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5320] write(3, "1000", 4 [pid 5319] close(24 [pid 5320] <... write resumed>) = 4 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(4, "", [pid 5049] <... close resumed>) = 0 [pid 5318] close(16 [pid 5320] close(3 [pid 5319] close(25 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5320] <... close resumed>) = 0 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5320] symlink("/dev/binderfs", "./binderfs" [pid 5319] close(26 [pid 5318] close(17 [pid 5051] getdents64(4, [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5320] <... symlink resumed>) = 0 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] close(18 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5319] close(27 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5320] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] close(19 [pid 5053] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5319] close(28 [pid 5051] close(4 [pid 5320] <... socket resumed>) = 3 [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5319] close(29./strace-static-x86_64: Process 5321 attached [pid 5320] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5319] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5318] close(20 [pid 5053] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5051] rmdir("./42/file0" [pid 5321] set_robust_list(0x5555566e0760, 24 [pid 5320] <... socket resumed>) = 4 [pid 5319] exit_group(0 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5321] <... set_robust_list resumed>) = 0 [pid 5320] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5319] <... exit_group resumed>) = ? [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 44 [pid 5321] chdir("./42" [pid 5318] close(21 [pid 5053] unlink("./41/binderfs" [pid 5051] <... rmdir resumed>) = 0 [pid 5321] <... chdir resumed>) = 0 [pid 5320] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5319] +++ exited with 0 +++ [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5051] getdents64(3, [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5320] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5318] close(22 [pid 5321] <... prctl resumed>) = 0 [pid 5320] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5321] setpgid(0, 0 [pid 5320] memfd_create("syzkaller", 0 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5321] <... setpgid resumed>) = 0 [pid 5318] close(23 [pid 5053] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(3 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5320] <... memfd_create resumed>) = 5 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5318] close(24 [pid 5053] newfstatat(AT_FDCWD, "./41/file0", [pid 5321] <... openat resumed>) = 3 [pid 5320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] close(25 [pid 5053] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5318] close(26 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5318] close(27 [pid 5321] write(3, "1000", 4) = 4 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5321] close(3) = 0 [pid 5318] close(28 [pid 5053] newfstatat(4, "", [pid 5050] <... openat resumed>) = 3 [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] symlink("/dev/binderfs", "./binderfs" [pid 5320] <... mmap resumed>) = 0x7f1263f98000 [pid 5318] close(29 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] newfstatat(3, "", [pid 5318] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] <... symlink resumed>) = 0 [pid 5320] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5318] exit_group(0 [pid 5053] getdents64(4, [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5320] mkdir("./file0", 000 [pid 5318] <... exit_group resumed>) = ? [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5321] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5320] <... mkdir resumed>) = 0 [pid 5050] getdents64(3, [pid 5321] <... socket resumed>) = 3 [pid 5320] symlink(NULL, NULL [pid 5321] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5320] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5318] +++ exited with 0 +++ [pid 5053] getdents64(4, [pid 5051] rmdir("./42" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5321] <... socket resumed>) = 4 [pid 5320] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5321] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5321] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5320] open(NULL, O_RDONLY [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5321] memfd_create("syzkaller", 0 [pid 5320] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5321] <... memfd_create resumed>) = 5 [pid 5050] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5320] close(3 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5320] <... close resumed>) = 0 [pid 5053] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5321] <... mmap resumed>) = 0x7f1263f98000 [pid 5320] close(4 [pid 5053] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5321] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5320] <... close resumed>) = 0 [pid 5053] rmdir("./41/file0" [pid 5050] unlink("./39/binderfs" [pid 5048] <... openat resumed>) = 3 [pid 5321] mkdir("./file0", 000) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5320] close(5 [pid 5048] newfstatat(3, "", [pid 5050] <... unlink resumed>) = 0 [pid 5320] <... close resumed>) = 0 [pid 5320] close(6 [pid 5053] getdents64(3, [pid 5051] <... rmdir resumed>) = 0 [pid 5050] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = 0 [pid 5053] close(3 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5321] symlink(NULL, NULL [pid 5053] <... close resumed>) = 0 [pid 5048] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5321] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5320] close(7 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5321] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5320] close(8 [pid 5321] <... mount resumed>) = 0 [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5320] close(9 [pid 5048] unlink("./39/binderfs" [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./43", 0777 [pid 5050] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... unlink resumed>) = 0 [pid 5320] close(10 [pid 5048] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] close(11) = -1 EBADF (Bad file descriptor) [pid 5320] close(12) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = 0 [pid 5320] close(13 [pid 5048] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5321] open(NULL, O_RDONLY [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] <... open resumed>) = -1 EFAULT (Bad address) [pid 5320] close(14 [pid 5053] rmdir("./41" [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5321] close(3) = 0 [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(4 [pid 5320] close(15 [pid 5321] <... close resumed>) = 0 [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(5 [pid 5320] close(16 [pid 5321] <... close resumed>) = 0 [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(AT_FDCWD, "./39/file0", [pid 5321] close(6 [pid 5320] close(17 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(7 [pid 5320] close(18 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(8 [pid 5320] close(19 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(9 [pid 5320] close(20 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(10 [pid 5320] close(21 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(11 [pid 5320] close(22 [pid 5050] newfstatat(AT_FDCWD, "./39/file0", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... mkdir resumed>) = 0 [pid 5320] close(23) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] close(24 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5321] close(12) = -1 EBADF (Bad file descriptor) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] close(25) = -1 EBADF (Bad file descriptor) [pid 5321] close(13 [pid 5320] close(26 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(14 [pid 5320] close(27 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(15 [pid 5320] close(28) = -1 EBADF (Bad file descriptor) [pid 5320] close(29) = -1 EBADF (Bad file descriptor) [pid 5320] exit_group(0 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] <... exit_group resumed>) = ? [pid 5321] close(16) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5321] close(17 [pid 5051] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 4 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(4, "", [pid 5321] close(18 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(19 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5050] <... openat resumed>) = 4 [pid 5048] getdents64(4, [pid 5321] close(20 [pid 5051] <... close resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] getdents64(4, [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5320] +++ exited with 0 +++ [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5321] close(21 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] close(4 [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5321] close(22) = -1 EBADF (Bad file descriptor) [pid 5321] close(23) = -1 EBADF (Bad file descriptor) [pid 5321] close(24) = -1 EBADF (Bad file descriptor) [pid 5321] close(25) = -1 EBADF (Bad file descriptor) [pid 5321] close(26) = -1 EBADF (Bad file descriptor) [pid 5321] close(27) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./42", 0777 [pid 5050] getdents64(4, [pid 5048] <... close resumed>) = 0 [pid 5321] close(28) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] rmdir("./39/file0" [pid 5321] close(29 [pid 5050] getdents64(4, [pid 5321] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5321] exit_group(0 [pid 5052] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5321] <... exit_group resumed>) = ? [pid 5052] <... openat resumed>) = 3 [pid 5050] close(4 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] <... close resumed>) = 0 [pid 5048] getdents64(3, ./strace-static-x86_64: Process 5322 attached [pid 5053] <... openat resumed>) = 3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 45 [pid 5050] rmdir("./39/file0" [pid 5322] set_robust_list(0x5555566e0760, 24 [pid 5321] +++ exited with 0 +++ [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] getdents64(3, [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] getdents64(3, [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] close(3 [pid 5048] close(3 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] <... close resumed>) = 0 [pid 5050] close(3 [pid 5322] <... set_robust_list resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5322] chdir("./43" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5322] <... chdir resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] rmdir("./39" [pid 5048] rmdir("./39"./strace-static-x86_64: Process 5323 attached [pid 5322] <... prctl resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 44 [pid 5052] unlink("./47/binderfs" [pid 5322] setpgid(0, 0 [pid 5052] <... unlink resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5323] set_robust_list(0x5555566e0760, 24 [pid 5322] <... setpgid resumed>) = 0 [pid 5052] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] mkdir("./40", 0777 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... rmdir resumed>) = 0 [pid 5323] <... set_robust_list resumed>) = 0 [pid 5322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... umount2 resumed>) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] mkdir("./40", 0777 [pid 5323] chdir("./42" [pid 5322] <... openat resumed>) = 3 [pid 5052] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5323] <... chdir resumed>) = 0 [pid 5322] write(3, "1000", 4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... openat resumed>) = 3 [pid 5049] newfstatat(3, "", [pid 5048] <... mkdir resumed>) = 0 [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] newfstatat(AT_FDCWD, "./47/file0", [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5323] <... prctl resumed>) = 0 [pid 5322] <... write resumed>) = 4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] getdents64(3, [pid 5323] setpgid(0, 0 [pid 5322] close(3 [pid 5050] close(3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5323] <... setpgid resumed>) = 0 [pid 5322] <... close resumed>) = 0 [pid 5052] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5049] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 3 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5322] symlink("/dev/binderfs", "./binderfs" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5322] <... symlink resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5052] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5322] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] newfstatat(4, "", [pid 5049] unlink("./42/binderfs"./strace-static-x86_64: Process 5324 attached [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5324] set_robust_list(0x5555566e0760, 24 [pid 5323] <... openat resumed>) = 3 [pid 5322] <... socket resumed>) = 3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 42 [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5324] <... set_robust_list resumed>) = 0 [pid 5322] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] getdents64(4, [pid 5049] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] close(3 [pid 5324] chdir("./40" [pid 5323] write(3, "1000", 4 [pid 5322] <... socket resumed>) = 4 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... close resumed>) = 0 [pid 5323] <... write resumed>) = 4 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5324] <... chdir resumed>) = 0 [pid 5323] close(3 [pid 5322] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] getdents64(4, [pid 5049] <... umount2 resumed>) = 0 [pid 5322] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5322] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] close(4 [pid 5324] <... prctl resumed>) = 0 [pid 5322] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5324] setpgid(0, 0 [pid 5323] <... close resumed>) = 0 [pid 5322] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5325 attached [pid 5324] <... setpgid resumed>) = 0 [pid 5052] rmdir("./47/file0" [pid 5323] symlink("/dev/binderfs", "./binderfs" [pid 5049] newfstatat(AT_FDCWD, "./42/file0", [pid 5325] set_robust_list(0x5555566e0760, 24 [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5323] <... symlink resumed>) = 0 [pid 5322] <... memfd_create resumed>) = 5 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 42 [pid 5325] <... set_robust_list resumed>) = 0 [pid 5049] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5325] chdir("./40" [pid 5324] <... openat resumed>) = 3 [pid 5323] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] getdents64(3, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5322] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5323] <... socket resumed>) = 3 [pid 5049] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5325] <... chdir resumed>) = 0 [pid 5324] write(3, "1000", 4 [pid 5323] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] <... openat resumed>) = 4 [pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5324] <... write resumed>) = 4 [pid 5323] <... socket resumed>) = 4 [pid 5322] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] close(3 [pid 5049] newfstatat(4, "", [pid 5324] close(3 [pid 5323] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5324] <... close resumed>) = 0 [pid 5325] <... prctl resumed>) = 0 [pid 5322] mkdir("./file0", 000 [pid 5052] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5325] setpgid(0, 0 [pid 5324] symlink("/dev/binderfs", "./binderfs" [pid 5323] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5322] <... mkdir resumed>) = 0 [pid 5325] <... setpgid resumed>) = 0 [pid 5052] rmdir("./47" [pid 5049] getdents64(4, [pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5324] <... symlink resumed>) = 0 [pid 5323] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5324] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5325] <... openat resumed>) = 3 [pid 5324] <... socket resumed>) = 3 [pid 5323] memfd_create("syzkaller", 0 [pid 5322] symlink(NULL, NULL [pid 5052] mkdir("./48", 0777 [pid 5049] getdents64(4, [pid 5325] write(3, "1000", 4 [pid 5324] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5323] <... memfd_create resumed>) = 5 [pid 5322] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] <... mkdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5325] <... write resumed>) = 4 [pid 5324] <... socket resumed>) = 4 [pid 5323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5322] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5049] close(4 [pid 5325] close(3 [pid 5324] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5323] <... mmap resumed>) = 0x7f1263f98000 [pid 5322] <... mount resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] <... close resumed>) = 0 [pid 5325] <... close resumed>) = 0 [pid 5324] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5323] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5322] open(NULL, O_RDONLY [pid 5052] <... openat resumed>) = 3 [pid 5049] rmdir("./42/file0" [pid 5325] symlink("/dev/binderfs", "./binderfs" [pid 5324] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5323] mkdir("./file0", 000 [pid 5049] <... rmdir resumed>) = 0 [pid 5325] <... symlink resumed>) = 0 [pid 5324] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5322] <... open resumed>) = -1 EFAULT (Bad address) [pid 5324] memfd_create("syzkaller", 0 [pid 5322] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] getdents64(3, [pid 5325] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5323] <... mkdir resumed>) = 0 [pid 5322] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5324] <... memfd_create resumed>) = 5 [pid 5325] <... socket resumed>) = 3 [pid 5324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5322] close(4 [pid 5052] close(3 [pid 5049] close(3 [pid 5324] <... mmap resumed>) = 0x7f1263f98000 [pid 5323] symlink(NULL, NULL [pid 5052] <... close resumed>) = 0 [pid 5324] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5324] mkdir("./file0", 000 [pid 5325] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5322] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... close resumed>) = 0 [pid 5325] <... socket resumed>) = 4 [pid 5324] <... mkdir resumed>) = 0 [pid 5323] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5322] close(5 [pid 5325] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5324] symlink(NULL, NULL [pid 5323] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5049] rmdir("./42" [pid 5325] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5325] memfd_create("syzkaller", 0) = 5 [pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5049] <... rmdir resumed>) = 0 [pid 5324] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5325] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5325] mkdir("./file0", 000 [pid 5323] <... mount resumed>) = 0 [pid 5325] <... mkdir resumed>) = 0 [pid 5322] <... close resumed>) = 0 [pid 5322] close(6 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 50 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5323] open(NULL, O_RDONLY [pid 5049] mkdir("./43", 0777 [pid 5325] symlink(NULL, NULL [pid 5322] close(7 [pid 5325] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5326 attached [pid 5325] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5324] <... mount resumed>) = 0 [pid 5322] close(8 [pid 5323] <... open resumed>) = -1 EFAULT (Bad address) [pid 5326] set_robust_list(0x5555566e0760, 24 [pid 5325] <... mount resumed>) = 0 [pid 5323] close(3 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... mkdir resumed>) = 0 [pid 5326] <... set_robust_list resumed>) = 0 [pid 5322] close(9 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5326] chdir("./48" [pid 5324] open(NULL, O_RDONLY [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(10) = -1 EBADF (Bad file descriptor) [pid 5322] close(11) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = 0 [pid 5322] close(12) = -1 EBADF (Bad file descriptor) [pid 5322] close(13 [pid 5049] <... openat resumed>) = 3 [pid 5323] close(4 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(14) = -1 EBADF (Bad file descriptor) [pid 5326] <... chdir resumed>) = 0 [pid 5325] open(NULL, O_RDONLY [pid 5324] <... open resumed>) = -1 EFAULT (Bad address) [pid 5323] <... close resumed>) = 0 [pid 5322] close(15 [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5325] <... open resumed>) = -1 EFAULT (Bad address) [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5326] <... prctl resumed>) = 0 [pid 5325] close(3 [pid 5322] close(16 [pid 5326] setpgid(0, 0 [pid 5325] <... close resumed>) = 0 [pid 5324] close(3 [pid 5323] close(5 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5326] <... setpgid resumed>) = 0 [pid 5325] close(4 [pid 5322] close(17 [pid 5325] <... close resumed>) = 0 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5325] close(5 [pid 5324] <... close resumed>) = 0 [pid 5323] <... close resumed>) = 0 [pid 5322] close(18 [pid 5049] close(3 [pid 5326] <... openat resumed>) = 3 [pid 5325] <... close resumed>) = 0 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] write(3, "1000", 4 [pid 5325] close(6 [pid 5324] close(4 [pid 5322] close(19 [pid 5323] close(6 [pid 5049] <... close resumed>) = 0 [pid 5326] <... write resumed>) = 4 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] close(3 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(20 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5326] <... close resumed>) = 0 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5325] close(7 [pid 5323] close(7 [pid 5322] close(21 [pid 5326] symlink("/dev/binderfs", "./binderfs" [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] <... close resumed>) = 0 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(22 [pid 5326] <... symlink resumed>) = 0 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(23 [pid 5326] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5325] close(8 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 45 ./strace-static-x86_64: Process 5327 attached [pid 5323] close(8 [pid 5327] set_robust_list(0x5555566e0760, 24 [pid 5326] <... socket resumed>) = 3 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(5 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(24 [pid 5325] close(9 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(9 [pid 5322] close(25 [pid 5325] close(10 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(10 [pid 5322] close(26 [pid 5324] <... close resumed>) = 0 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(11) = -1 EBADF (Bad file descriptor) [pid 5325] close(11 [pid 5323] close(12 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] <... set_robust_list resumed>) = 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(6 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(27 [pid 5325] close(12 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] chdir("./43" [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(28 [pid 5327] <... chdir resumed>) = 0 [pid 5325] close(13 [pid 5324] close(7 [pid 5323] close(13 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] close(29 [pid 5327] <... prctl resumed>) = 0 [pid 5325] close(14 [pid 5324] close(8 [pid 5323] close(14 [pid 5322] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] setpgid(0, 0 [pid 5326] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] exit_group(0 [pid 5327] <... setpgid resumed>) = 0 [pid 5326] <... socket resumed>) = 4 [pid 5325] close(15 [pid 5323] close(15 [pid 5322] <... exit_group resumed>) = ? [pid 5324] close(9 [pid 5327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5326] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5322] +++ exited with 0 +++ [pid 5326] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5325] close(16 [pid 5323] close(16 [pid 5326] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5325] close(17 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] <... openat resumed>) = 3 [pid 5326] memfd_create("syzkaller", 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(17 [pid 5327] write(3, "1000", 4 [pid 5326] <... memfd_create resumed>) = 5 [pid 5325] close(18 [pid 5324] close(10 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5326] <... mmap resumed>) = 0x7f1263f98000 [pid 5325] close(19 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] <... write resumed>) = 4 [pid 5323] close(18 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5327] close(3 [pid 5326] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(11 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5327] <... close resumed>) = 0 [pid 5326] mkdir("./file0", 000 [pid 5325] close(20 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(19 [pid 5326] <... mkdir resumed>) = 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(12 [pid 5327] symlink("/dev/binderfs", "./binderfs" [pid 5326] symlink(NULL, NULL [pid 5325] close(21 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(13 [pid 5325] close(22 [pid 5326] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(20 [pid 5325] close(23 [pid 5327] <... symlink resumed>) = 0 [pid 5326] <... mount resumed>) = 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5325] close(24) = -1 EBADF (Bad file descriptor) [pid 5325] close(25) = -1 EBADF (Bad file descriptor) [pid 5324] close(14 [pid 5325] close(26 [pid 5326] open(NULL, O_RDONLY [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(21 [pid 5051] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] <... open resumed>) = -1 EFAULT (Bad address) [pid 5325] close(27 [pid 5324] close(15 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] close(3 [pid 5325] close(28 [pid 5326] <... close resumed>) = 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(16 [pid 5323] close(22 [pid 5326] close(4 [pid 5325] close(29 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5326] <... close resumed>) = 0 [pid 5325] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(17 [pid 5323] close(23 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(18 [pid 5323] close(24 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5324] close(19 [pid 5326] close(5 [pid 5325] exit_group(0 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5326] <... close resumed>) = 0 [pid 5325] <... exit_group resumed>) = ? [pid 5324] close(20 [pid 5327] <... socket resumed>) = 3 [pid 5326] close(6 [pid 5325] +++ exited with 0 +++ [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] close(7 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5326] close(8 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(25 [pid 5051] newfstatat(3, "", [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] close(9) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5326] close(10 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] close(11 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5327] <... socket resumed>) = 4 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(21 [pid 5323] close(26 [pid 5048] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5326] close(12) = -1 EBADF (Bad file descriptor) [pid 5326] close(13) = -1 EBADF (Bad file descriptor) [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5048] <... openat resumed>) = 3 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5326] close(14 [pid 5324] close(22 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5326] close(15 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(27 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] newfstatat(3, "", [pid 5327] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(23 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5326] close(16 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(28 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] close(17) = -1 EBADF (Bad file descriptor) [pid 5324] close(24 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(3, [pid 5327] memfd_create("syzkaller", 0 [pid 5326] close(18 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] close(29 [pid 5051] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(25 [pid 5323] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5327] <... memfd_create resumed>) = 5 [pid 5326] close(19 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(26 [pid 5323] exit_group(0 [pid 5051] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5048] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] <... mmap resumed>) = 0x7f1263f98000 [pid 5326] close(20 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] <... exit_group resumed>) = ? [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(27 [pid 5326] close(21 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(28 [pid 5326] close(22 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] mkdir("./file0", 000 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] close(29 [pid 5327] <... mkdir resumed>) = 0 [pid 5326] close(23 [pid 5324] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./43/binderfs" [pid 5048] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5327] symlink(NULL, NULL [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5324] exit_group(0 [pid 5051] <... unlink resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5326] close(24 [pid 5324] <... exit_group resumed>) = ? [pid 5048] unlink("./40/binderfs" [pid 5327] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5324] +++ exited with 0 +++ [pid 5327] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5048] <... unlink resumed>) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5327] <... mount resumed>) = 0 [pid 5051] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5048] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... restart_syscall resumed>) = 0 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5323] +++ exited with 0 +++ [pid 5326] close(25 [pid 5050] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] open(NULL, O_RDONLY [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = 0 [pid 5327] <... open resumed>) = -1 EFAULT (Bad address) [pid 5326] close(26 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] close(3 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5327] <... close resumed>) = 0 [pid 5326] close(27 [pid 5051] newfstatat(AT_FDCWD, "./43/file0", [pid 5050] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] close(4 [pid 5326] close(28 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(AT_FDCWD, "./40/file0", [pid 5327] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] newfstatat(3, "", [pid 5327] close(5 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5051] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5327] <... close resumed>) = 0 [pid 5326] close(29 [pid 5053] newfstatat(3, "", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5327] close(6 [pid 5326] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(3, [pid 5048] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5326] exit_group(0 [pid 5053] getdents64(3, [pid 5051] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5327] close(7 [pid 5326] <... exit_group resumed>) = ? [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5326] +++ exited with 0 +++ [pid 5051] <... openat resumed>) = 4 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5327] close(8 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 4 [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5052] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5327] close(9 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(4, "", [pid 5327] close(10 [pid 5053] unlink("./42/binderfs" [pid 5052] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(4, "", [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] unlink("./40/binderfs" [pid 5327] close(11 [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5051] getdents64(4, [pid 5050] <... unlink resumed>) = 0 [pid 5048] getdents64(4, [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(3, "", [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] close(12 [pid 5051] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5327] close(13 [pid 5052] getdents64(3, [pid 5048] getdents64(4, [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(4 [pid 5327] close(14 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./43/file0" [pid 5048] close(4 [pid 5327] close(15 [pid 5052] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5327] close(16 [pid 5053] <... umount2 resumed>) = 0 [pid 5048] rmdir("./40/file0" [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] close(17) = -1 EBADF (Bad file descriptor) [pid 5327] close(18) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5327] close(19) = -1 EBADF (Bad file descriptor) [pid 5327] close(20 [pid 5051] getdents64(3, [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5327] close(21 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] close(22 [pid 5051] close(3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./40/file0", [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5327] close(23 [pid 5051] rmdir("./43" [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] close(24 [pid 5051] <... rmdir resumed>) = 0 [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5327] close(25) = -1 EBADF (Bad file descriptor) [pid 5327] close(26 [pid 5050] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5327] close(27 [pid 5053] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(4, "", [pid 5048] getdents64(3, [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5327] close(28) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./44", 0777 [pid 5050] getdents64(4, [pid 5327] close(29 [pid 5051] <... mkdir resumed>) = 0 [pid 5327] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5327] exit_group(0 [pid 5053] newfstatat(AT_FDCWD, "./42/file0", [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] close(3 [pid 5327] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] unlink("./48/binderfs" [pid 5048] <... close resumed>) = 0 [pid 5327] +++ exited with 0 +++ [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] getdents64(4, [pid 5053] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... unlink resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] rmdir("./40" [pid 5051] <... openat resumed>) = 3 [pid 5050] close(4 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... close resumed>) = 0 [pid 5049] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./40/file0" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] <... rmdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... rmdir resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... openat resumed>) = 3 [pid 5048] mkdir("./41", 0777 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] close(3) = 0 [pid 5049] newfstatat(3, "", [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5050] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] close(3) = 0 [pid 5049] getdents64(3, [pid 5050] rmdir("./40" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] unlink("./43/binderfs") = 0 [pid 5050] mkdir("./41", 0777 [pid 5053] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5049] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 4 [pid 5048] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./48/file0", [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5053] newfstatat(4, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] getdents64(4, [pid 5048] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5328 attached [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 46 [pid 5050] <... mkdir resumed>) = 0 [pid 5328] set_robust_list(0x5555566e0760, 24 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5328] <... set_robust_list resumed>) = 0 [pid 5049] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] chdir("./44" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5049] newfstatat(AT_FDCWD, "./43/file0", [pid 5328] <... chdir resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] close(4 [pid 5052] newfstatat(4, "", [pid 5050] close(3 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 43 [pid 5328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] <... prctl resumed>) = 0 [pid 5053] rmdir("./42/file0" [pid 5052] getdents64(4, [pid 5050] <... close resumed>) = 0 ./strace-static-x86_64: Process 5329 attached [pid 5328] setpgid(0, 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5328] <... setpgid resumed>) = 0 [pid 5328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5329] set_robust_list(0x5555566e0760, 24 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5329] <... set_robust_list resumed>) = 0 [pid 5052] getdents64(4, [pid 5329] chdir("./41" [pid 5328] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5329] <... chdir resumed>) = 0 [pid 5052] close(4 [pid 5329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5328] write(3, "1000", 4 [pid 5052] <... close resumed>) = 0 [pid 5049] newfstatat(4, "", [pid 5329] setpgid(0, 0 [pid 5052] rmdir("./48/file0" [pid 5053] getdents64(3, [pid 5329] <... setpgid resumed>) = 0 [pid 5329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5328] <... write resumed>) = 4 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5328] close(3 [pid 5053] close(3 [pid 5049] getdents64(4, [pid 5329] <... openat resumed>) = 3 [pid 5053] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5329] write(3, "1000", 4 [pid 5328] <... close resumed>) = 0 [pid 5053] rmdir("./42" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(4, [pid 5329] <... write resumed>) = 4 [pid 5328] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 43 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5330 attached [pid 5329] close(3 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] close(3 [pid 5049] close(4 [pid 5330] set_robust_list(0x5555566e0760, 24 [pid 5329] <... close resumed>) = 0 [pid 5328] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] mkdir("./43", 0777 [pid 5052] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5330] <... set_robust_list resumed>) = 0 [pid 5329] symlink("/dev/binderfs", "./binderfs" [pid 5328] <... socket resumed>) = 3 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] rmdir("./48" [pid 5328] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] rmdir("./43/file0" [pid 5328] <... socket resumed>) = 4 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5330] chdir("./41" [pid 5329] <... symlink resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] mkdir("./49", 0777 [pid 5328] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] getdents64(3, [pid 5328] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5328] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5328] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5328] memfd_create("syzkaller", 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5330] <... chdir resumed>) = 0 [pid 5329] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5330] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5329] <... socket resumed>) = 3 [pid 5328] <... memfd_create resumed>) = 5 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... openat resumed>) = 3 [pid 5049] close(3 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5330] <... prctl resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5330] setpgid(0, 0 [pid 5329] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5328] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] close(3 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] rmdir("./43" [pid 5330] <... setpgid resumed>) = 0 [pid 5329] <... socket resumed>) = 4 [pid 5328] <... mmap resumed>) = 0x7f1263f98000 [pid 5330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5329] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] <... close resumed>) = 0 [pid 5052] close(3 [pid 5049] <... rmdir resumed>) = 0 [pid 5330] <... openat resumed>) = 3 [pid 5329] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5328] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... close resumed>) = 0 [pid 5329] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5328] mkdir("./file0", 000) = 0 [pid 5049] mkdir("./44", 0777) = 0 [pid 5328] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5328] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5330] write(3, "1000", 4 [pid 5329] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5328] <... mount resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5332 attached ./strace-static-x86_64: Process 5331 attached [pid 5330] <... write resumed>) = 4 [pid 5332] set_robust_list(0x5555566e0760, 24 [pid 5329] memfd_create("syzkaller", 0 [pid 5328] open(NULL, O_RDONLY [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 45 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 51 [pid 5049] <... openat resumed>) = 3 [pid 5331] set_robust_list(0x5555566e0760, 24 [pid 5332] <... set_robust_list resumed>) = 0 [pid 5331] <... set_robust_list resumed>) = 0 [pid 5332] chdir("./49" [pid 5331] chdir("./43" [pid 5330] close(3 [pid 5329] <... memfd_create resumed>) = 5 [pid 5328] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5330] <... close resumed>) = 0 [pid 5329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5332] <... chdir resumed>) = 0 [pid 5331] <... chdir resumed>) = 0 [pid 5330] symlink("/dev/binderfs", "./binderfs" [pid 5328] close(3 [pid 5332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5328] <... close resumed>) = 0 [pid 5049] close(3 [pid 5332] <... prctl resumed>) = 0 [pid 5331] <... prctl resumed>) = 0 [pid 5330] <... symlink resumed>) = 0 [pid 5329] <... mmap resumed>) = 0x7f1263f98000 [pid 5328] close(4 [pid 5049] <... close resumed>) = 0 [pid 5332] setpgid(0, 0 [pid 5331] setpgid(0, 0 [pid 5330] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5329] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5332] <... setpgid resumed>) = 0 [pid 5331] <... setpgid resumed>) = 0 [pid 5330] <... socket resumed>) = 3 [pid 5329] mkdir("./file0", 000 [pid 5328] <... close resumed>) = 0 [pid 5332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5330] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5329] <... mkdir resumed>) = 0 [pid 5330] <... socket resumed>) = 4 [pid 5328] close(5 [pid 5330] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5329] symlink(NULL, NULL [pid 5328] <... close resumed>) = 0 [pid 5330] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5329] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5328] close(6 [pid 5330] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5330] memfd_create("syzkaller", 0 [pid 5329] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] <... memfd_create resumed>) = 5 [pid 5329] <... mount resumed>) = 0 [pid 5330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5331] <... openat resumed>) = 3 [pid 5332] <... openat resumed>) = 3 [pid 5330] <... mmap resumed>) = 0x7f1263f98000 [pid 5328] close(7 [pid 5330] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5330] mkdir("./file0", 000 [pid 5331] write(3, "1000", 4 [pid 5330] <... mkdir resumed>) = 0 [pid 5329] open(NULL, O_RDONLY [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] write(3, "1000", 4 [pid 5328] close(8 [pid 5332] <... write resumed>) = 4 [pid 5331] <... write resumed>) = 4 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] close(3 [pid 5328] close(9 [pid 5332] <... close resumed>) = 0 [pid 5331] close(3 [pid 5329] <... open resumed>) = -1 EFAULT (Bad address) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] symlink("/dev/binderfs", "./binderfs" [pid 5331] <... close resumed>) = 0 [pid 5329] close(3 [pid 5328] close(10 [pid 5330] symlink(NULL, NULL [pid 5329] <... close resumed>) = 0 ./strace-static-x86_64: Process 5333 attached [pid 5332] <... symlink resumed>) = 0 [pid 5331] symlink("/dev/binderfs", "./binderfs" [pid 5330] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5329] close(4 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5331] <... symlink resumed>) = 0 [pid 5330] <... mount resumed>) = 0 [pid 5328] close(11 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 46 [pid 5333] set_robust_list(0x5555566e0760, 24 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] close(12) = -1 EBADF (Bad file descriptor) [pid 5330] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5330] close(3) = 0 [pid 5330] close(4) = 0 [pid 5333] <... set_robust_list resumed>) = 0 [pid 5328] close(13 [pid 5331] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5332] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5330] close(5 [pid 5333] chdir("./44" [pid 5332] <... socket resumed>) = 3 [pid 5330] <... close resumed>) = 0 [pid 5331] <... socket resumed>) = 3 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5330] close(6 [pid 5328] close(14 [pid 5331] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5333] <... chdir resumed>) = 0 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5328] close(15 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... prctl resumed>) = 0 [pid 5330] close(7 [pid 5328] close(16 [pid 5333] setpgid(0, 0 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... setpgid resumed>) = 0 [pid 5332] <... socket resumed>) = 4 [pid 5331] <... socket resumed>) = 4 [pid 5330] close(8 [pid 5329] <... close resumed>) = 0 [pid 5328] close(17 [pid 5332] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5332] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5330] close(9 [pid 5328] close(18 [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5332] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5331] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] close(5 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5330] close(10 [pid 5329] <... close resumed>) = 0 [pid 5328] close(19 [pid 5332] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] close(6 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5333] <... openat resumed>) = 3 [pid 5332] memfd_create("syzkaller", 0 [pid 5331] memfd_create("syzkaller", 0 [pid 5330] close(11 [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] close(20 [pid 5333] write(3, "1000", 4 [pid 5331] <... memfd_create resumed>) = 5 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] close(7 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... write resumed>) = 4 [pid 5332] <... memfd_create resumed>) = 5 [pid 5331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5330] close(12 [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] close(21 [pid 5333] close(3 [pid 5332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5331] <... mmap resumed>) = 0x7f1263f98000 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] close(8 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... close resumed>) = 0 [pid 5332] <... mmap resumed>) = 0x7f1263f98000 [pid 5331] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5330] close(13 [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] close(22 [pid 5333] symlink("/dev/binderfs", "./binderfs" [pid 5332] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5331] mkdir("./file0", 000 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] close(9 [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] close(14 [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] close(23 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... symlink resumed>) = 0 [pid 5332] mkdir("./file0", 000 [pid 5330] close(15 [pid 5329] close(10 [pid 5328] close(24 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... mkdir resumed>) = 0 [pid 5330] close(16) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] close(17) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] close(18 [pid 5329] close(11 [pid 5328] close(25 [pid 5331] symlink(NULL, NULL [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5332] <... mkdir resumed>) = 0 [pid 5330] close(19 [pid 5329] close(12 [pid 5328] close(26 [pid 5333] <... socket resumed>) = 3 [pid 5332] symlink(NULL, NULL [pid 5331] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5332] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5331] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5330] close(20 [pid 5329] close(13 [pid 5328] close(27 [pid 5333] <... socket resumed>) = 4 [pid 5332] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5331] <... mount resumed>) = 0 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] close(21 [pid 5329] close(14 [pid 5328] close(28 [pid 5332] <... mount resumed>) = 0 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5331] open(NULL, O_RDONLY [pid 5333] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5330] close(22 [pid 5329] close(15 [pid 5328] close(29 [pid 5333] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5332] open(NULL, O_RDONLY [pid 5331] <... open resumed>) = -1 EFAULT (Bad address) [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5332] <... open resumed>) = -1 EFAULT (Bad address) [pid 5331] close(3 [pid 5330] close(23 [pid 5329] close(16 [pid 5333] memfd_create("syzkaller", 0 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] exit_group(0 [pid 5332] close(3 [pid 5331] <... close resumed>) = 0 [pid 5330] close(24 [pid 5329] close(17 [pid 5333] <... memfd_create resumed>) = 5 [pid 5332] <... close resumed>) = 0 [pid 5331] close(4 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] <... exit_group resumed>) = ? [pid 5333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5332] close(4 [pid 5331] <... close resumed>) = 0 [pid 5330] close(25 [pid 5329] close(18 [pid 5333] <... mmap resumed>) = 0x7f1263f98000 [pid 5332] <... close resumed>) = 0 [pid 5331] close(5 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] close(26 [pid 5329] close(19 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] close(5 [pid 5330] close(27 [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5332] <... close resumed>) = 0 [pid 5331] <... close resumed>) = 0 [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] mkdir("./file0", 000 [pid 5332] close(6 [pid 5331] close(6 [pid 5330] close(28 [pid 5329] close(20 [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... mkdir resumed>) = 0 [pid 5331] close(7 [pid 5329] close(21 [pid 5332] close(7 [pid 5330] close(29 [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] close(22 [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] symlink(NULL, NULL [pid 5332] close(8 [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] exit_group(0 [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5328] +++ exited with 0 +++ [pid 5333] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] close(8 [pid 5330] <... exit_group resumed>) = ? [pid 5329] close(23 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5333] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5332] close(9 [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5330] +++ exited with 0 +++ [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5333] <... mount resumed>) = 0 [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] close(9 [pid 5329] close(24) = -1 EBADF (Bad file descriptor) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] close(25 [pid 5332] close(10 [pid 5331] close(10 [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] open(NULL, O_RDONLY [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5332] close(11 [pid 5331] close(11 [pid 5329] close(26 [pid 5333] <... open resumed>) = -1 EFAULT (Bad address) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5333] close(3 [pid 5332] close(12 [pid 5331] close(12 [pid 5329] close(27 [pid 5051] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... restart_syscall resumed>) = 0 [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... close resumed>) = 0 [pid 5332] close(13 [pid 5331] close(13 [pid 5329] close(28 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] close(4 [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... close resumed>) = 0 [pid 5332] close(14 [pid 5331] close(14 [pid 5329] close(29 [pid 5051] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5329] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] close(5 [pid 5332] close(15 [pid 5331] close(15 [pid 5329] exit_group(0 [pid 5051] <... openat resumed>) = 3 [pid 5050] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5333] <... close resumed>) = 0 [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(3, "", [pid 5333] close(6 [pid 5332] close(16 [pid 5331] close(16 [pid 5329] <... exit_group resumed>) = ? [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(3, [pid 5333] close(7 [pid 5332] close(17 [pid 5331] close(17 [pid 5329] +++ exited with 0 +++ [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5333] close(8 [pid 5332] close(18 [pid 5331] close(18 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... openat resumed>) = 3 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(3, "", [pid 5333] close(9 [pid 5332] close(19 [pid 5331] close(19 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5333] close(10 [pid 5332] close(20 [pid 5331] close(20 [pid 5051] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5050] getdents64(3, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5333] close(11 [pid 5332] close(21 [pid 5331] close(21 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(3, "", [pid 5333] close(12 [pid 5332] close(22 [pid 5331] close(22 [pid 5051] unlink("./44/binderfs" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, [pid 5333] close(13 [pid 5332] close(23 [pid 5331] close(23 [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5333] close(14 [pid 5332] close(24 [pid 5331] close(24 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5333] close(15 [pid 5332] close(25 [pid 5331] close(25 [pid 5051] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] unlink("./41/binderfs" [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] close(16 [pid 5332] close(26 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] close(26 [pid 5051] newfstatat(AT_FDCWD, "./44/file0", [pid 5333] close(17) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5333] close(18 [pid 5332] close(27 [pid 5331] close(27 [pid 5051] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... unlink resumed>) = 0 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] close(19 [pid 5332] close(28 [pid 5331] close(28 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5333] close(20 [pid 5332] close(29 [pid 5331] close(29 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] close(21 [pid 5331] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] exit_group(0 [pid 5331] exit_group(0 [pid 5051] <... openat resumed>) = 4 [pid 5050] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5333] close(22 [pid 5331] <... exit_group resumed>) = ? [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5333] close(23 [pid 5331] +++ exited with 0 +++ [pid 5051] newfstatat(4, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5333] close(24 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5332] <... exit_group resumed>) = ? [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] unlink("./41/binderfs" [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... unlink resumed>) = 0 [pid 5333] close(25 [pid 5050] <... umount2 resumed>) = 0 [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5048] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5333] close(26) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(3, "", [pid 5048] newfstatat(AT_FDCWD, "./41/file0", [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5333] close(27 [pid 5053] getdents64(3, [pid 5051] getdents64(4, [pid 5050] newfstatat(AT_FDCWD, "./41/file0", [pid 5048] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5332] +++ exited with 0 +++ [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] close(28 [pid 5053] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(4 [pid 5050] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5333] close(29 [pid 5051] rmdir("./44/file0" [pid 5333] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] exit_group(0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5333] <... exit_group resumed>) = ? [pid 5053] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5048] <... openat resumed>) = 4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(4, "", [pid 5053] unlink("./43/binderfs" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5333] +++ exited with 0 +++ [pid 5053] <... unlink resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(3, [pid 5050] newfstatat(4, "", [pid 5048] getdents64(4, [pid 5053] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] newfstatat(3, "", [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(4, [pid 5048] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] close(3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] close(4 [pid 5053] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] rmdir("./44" [pid 5050] getdents64(4, [pid 5048] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] rmdir("./41/file0" [pid 5053] newfstatat(AT_FDCWD, "./43/file0", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... rmdir resumed>) = 0 [pid 5049] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... rmdir resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(3, [pid 5053] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] close(4 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5052] unlink("./49/binderfs" [pid 5051] mkdir("./45", 0777 [pid 5050] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] close(3 [pid 5053] newfstatat(4, "", [pid 5052] <... unlink resumed>) = 0 [pid 5050] rmdir("./41/file0" [pid 5049] <... openat resumed>) = 3 [pid 5048] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5048] rmdir("./41" [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... rmdir resumed>) = 0 [pid 5049] newfstatat(3, "", [pid 5053] getdents64(4, [pid 5052] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] getdents64(3, [pid 5049] getdents64(3, [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] close(3 [pid 5050] close(3 [pid 5049] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] mkdir("./42", 0777 [pid 5053] getdents64(4, [pid 5052] newfstatat(AT_FDCWD, "./49/file0", [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5048] <... mkdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5049] unlink("./44/binderfs" [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5052] getdents64(4, [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] getdents64(4, [pid 5048] close(3 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5048] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] rmdir("./49/file0" [pid 5050] rmdir("./41" [pid 5049] <... unlink resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] close(3) = 0 [pid 5052] rmdir("./49" [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] mkdir("./42", 0777 [pid 5049] <... umount2 resumed>) = 0 [pid 5053] close(4 [pid 5049] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5334 attached [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 47 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5335 attached [pid 5334] set_robust_list(0x5555566e0760, 24 [pid 5053] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./44/file0", [pid 5053] rmdir("./43/file0" [pid 5050] <... mkdir resumed>) = 0 [pid 5335] set_robust_list(0x5555566e0760, 24 [pid 5334] <... set_robust_list resumed>) = 0 [pid 5052] mkdir("./50", 0777 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 44 [pid 5335] <... set_robust_list resumed>) = 0 [pid 5334] chdir("./45" [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5335] chdir("./42" [pid 5053] getdents64(3, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5335] <... chdir resumed>) = 0 [pid 5334] <... chdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] close(3 [pid 5052] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... openat resumed>) = 4 [pid 5335] <... prctl resumed>) = 0 [pid 5334] <... prctl resumed>) = 0 [pid 5049] newfstatat(4, "", [pid 5335] setpgid(0, 0 [pid 5334] setpgid(0, 0 [pid 5053] <... close resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5335] <... setpgid resumed>) = 0 [pid 5334] <... setpgid resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] rmdir("./43" [pid 5052] close(3 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] getdents64(4, [pid 5334] <... openat resumed>) = 3 [pid 5052] <... close resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5335] <... openat resumed>) = 3 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] close(3 [pid 5049] getdents64(4, [pid 5334] write(3, "1000", 4 [pid 5335] write(3, "1000", 4 [pid 5334] <... write resumed>) = 4 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5335] <... write resumed>) = 4 [pid 5334] close(3 [pid 5050] <... close resumed>) = 0 [pid 5049] close(4 [pid 5335] close(3 [pid 5334] <... close resumed>) = 0 [pid 5335] <... close resumed>) = 0 [pid 5334] symlink("/dev/binderfs", "./binderfs" [pid 5335] symlink("/dev/binderfs", "./binderfs" [pid 5334] <... symlink resumed>) = 0 [pid 5053] mkdir("./44", 0777 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... close resumed>) = 0 [pid 5334] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5335] <... symlink resumed>) = 0 [pid 5334] <... socket resumed>) = 3 [pid 5053] <... mkdir resumed>) = 0 [pid 5335] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5334] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5335] <... socket resumed>) = 3 [pid 5334] <... socket resumed>) = 4 ./strace-static-x86_64: Process 5336 attached [pid 5335] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5334] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5335] <... socket resumed>) = 4 [pid 5334] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5334] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 52 [pid 5336] set_robust_list(0x5555566e0760, 24 [pid 5335] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5334] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5049] rmdir("./44/file0" [pid 5336] <... set_robust_list resumed>) = 0 [pid 5335] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5334] memfd_create("syzkaller", 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5336] chdir("./50" [pid 5049] <... rmdir resumed>) = 0 [pid 5335] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5336] <... chdir resumed>) = 0 [pid 5335] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, ./strace-static-x86_64: Process 5337 attached [pid 5335] memfd_create("syzkaller", 0 [pid 5053] <... openat resumed>) = 3 [pid 5336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 44 [pid 5336] setpgid(0, 0) = 0 [pid 5336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5337] set_robust_list(0x5555566e0760, 24 [pid 5336] <... openat resumed>) = 3 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5337] <... set_robust_list resumed>) = 0 [pid 5336] write(3, "1000", 4 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] close(3 [pid 5337] chdir("./42" [pid 5336] <... write resumed>) = 4 [pid 5049] <... close resumed>) = 0 [pid 5053] close(3 [pid 5049] rmdir("./44" [pid 5337] <... chdir resumed>) = 0 [pid 5336] close(3 [pid 5053] <... close resumed>) = 0 [pid 5336] <... close resumed>) = 0 [pid 5336] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] mkdir("./45", 0777 [pid 5336] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5336] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5336] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5336] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5336] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5338 attached [pid 5337] <... prctl resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5337] setpgid(0, 0) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 46 [pid 5049] <... openat resumed>) = 3 [pid 5335] <... memfd_create resumed>) = 5 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5338] set_robust_list(0x5555566e0760, 24) = 0 [pid 5335] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5338] chdir("./44" [pid 5049] close(3 [pid 5338] <... chdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5335] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5335] mkdir("./file0", 000 [pid 5338] <... prctl resumed>) = 0 [pid 5337] <... openat resumed>) = 3 [pid 5335] <... mkdir resumed>) = 0 [pid 5338] setpgid(0, 0 [pid 5335] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5335] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5337] write(3, "1000", 4) = 4 [pid 5338] <... setpgid resumed>) = 0 [pid 5335] <... mount resumed>) = 0 [pid 5335] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5335] close(3) = 0 [pid 5335] close(4) = 0 [pid 5335] close(5) = 0 [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5337] close(3 [pid 5335] close(6 [pid 5337] <... close resumed>) = 0 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5337] symlink("/dev/binderfs", "./binderfs" [pid 5335] close(7) = -1 EBADF (Bad file descriptor) [pid 5334] <... memfd_create resumed>) = 5 [pid 5335] close(8 [pid 5334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... mmap resumed>) = 0x7f1263f98000 [pid 5335] close(9 [pid 5334] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5337] <... symlink resumed>) = 0 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] mkdir("./file0", 000 [pid 5338] <... openat resumed>) = 3 [pid 5336] <... memfd_create resumed>) = 5 [pid 5335] close(10 [pid 5334] <... mkdir resumed>) = 0 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5335] close(11) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5339 attached [pid 5338] write(3, "1000", 4 [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5335] close(12 [pid 5336] <... mmap resumed>) = 0x7f1263f98000 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] symlink(NULL, NULL [pid 5337] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5339] set_robust_list(0x5555566e0760, 24 [pid 5338] <... write resumed>) = 4 [pid 5336] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5335] close(13 [pid 5334] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5336] mkdir("./file0", 000 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5339] <... set_robust_list resumed>) = 0 [pid 5338] close(3 [pid 5337] <... socket resumed>) = 3 [pid 5336] <... mkdir resumed>) = 0 [pid 5335] close(14 [pid 5334] <... mount resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 47 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] <... close resumed>) = 0 [pid 5335] close(15) = -1 EBADF (Bad file descriptor) [pid 5338] symlink("/dev/binderfs", "./binderfs" [pid 5335] close(16) = -1 EBADF (Bad file descriptor) [pid 5335] close(17) = -1 EBADF (Bad file descriptor) [pid 5334] open(NULL, O_RDONLY [pid 5335] close(18 [pid 5334] <... open resumed>) = -1 EFAULT (Bad address) [pid 5338] <... symlink resumed>) = 0 [pid 5336] symlink(NULL, NULL [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(3 [pid 5336] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5335] close(19 [pid 5334] <... close resumed>) = 0 [pid 5339] chdir("./45" [pid 5338] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5337] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5336] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] <... socket resumed>) = 3 [pid 5337] <... socket resumed>) = 4 [pid 5336] <... mount resumed>) = 0 [pid 5335] close(20 [pid 5334] close(4 [pid 5339] <... chdir resumed>) = 0 [pid 5338] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5337] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = 0 [pid 5339] <... prctl resumed>) = 0 [pid 5337] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5335] close(21 [pid 5337] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5335] close(22 [pid 5334] close(5 [pid 5339] setpgid(0, 0 [pid 5338] <... socket resumed>) = 4 [pid 5337] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5336] open(NULL, O_RDONLY [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = 0 [pid 5339] <... setpgid resumed>) = 0 [pid 5338] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5336] <... open resumed>) = -1 EFAULT (Bad address) [pid 5335] close(23 [pid 5334] close(6 [pid 5336] close(3 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = 0 [pid 5335] close(24 [pid 5334] close(7 [pid 5339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 102.394831][ T5334] __do_sys_memfd_create: 129 callbacks suppressed [ 102.394853][ T5334] syz-executor493[5334]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 102.414847][ T5335] syz-executor493[5335]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 102.429121][ T5336] syz-executor493[5336]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5336] close(4 [pid 5335] close(25 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = 0 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(8 [pid 5336] close(5 [pid 5335] close(26 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5337] memfd_create("syzkaller", 0 [pid 5336] <... close resumed>) = 0 [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(9 [pid 5339] <... openat resumed>) = 3 [pid 5336] close(6 [pid 5335] close(27 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(10 [pid 5336] close(7 [pid 5335] close(28 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(11 [pid 5336] close(8 [pid 5335] close(29 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5335] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(12 [pid 5336] close(9 [pid 5335] exit_group(0 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5335] <... exit_group resumed>) = ? [pid 5334] close(13 [pid 5336] close(10) = -1 EBADF (Bad file descriptor) [pid 5336] close(11) = -1 EBADF (Bad file descriptor) [pid 5336] close(12) = -1 EBADF (Bad file descriptor) [pid 5336] close(13 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(14 [pid 5336] close(14 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(15 [pid 5336] close(15 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(16 [pid 5336] close(16 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] close(17 [pid 5336] close(17 [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] close(18 [pid 5334] close(18) = -1 EBADF (Bad file descriptor) [pid 5334] close(19) = -1 EBADF (Bad file descriptor) [pid 5334] close(20 [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] close(19 [pid 5334] close(21) = -1 EBADF (Bad file descriptor) [pid 5334] close(22 [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] close(20 [pid 5334] close(23 [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5335] +++ exited with 0 +++ [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5336] close(21 [pid 5334] close(24 [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5336] close(22 [pid 5334] close(25 [pid 5048] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] close(23 [pid 5334] close(26 [pid 5048] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5336] close(24 [pid 5334] close(27 [pid 5048] newfstatat(3, "", [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5336] close(25 [pid 5334] close(28 [pid 5048] getdents64(3, [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5339] write(3, "1000", 4 [pid 5338] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5336] close(26 [pid 5334] close(29 [pid 5048] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] close(27 [pid 5334] exit_group(0 [pid 5048] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5336] close(28 [pid 5048] unlink("./42/binderfs" [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5334] <... exit_group resumed>) = ? [pid 5048] <... unlink resumed>) = 0 [pid 5336] close(29 [pid 5334] +++ exited with 0 +++ [pid 5048] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = 0 [pid 5336] exit_group(0 [pid 5048] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] <... exit_group resumed>) = ? [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] +++ exited with 0 +++ [pid 5338] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] newfstatat(AT_FDCWD, "./42/file0", [pid 5339] <... write resumed>) = 4 [pid 5338] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5052] <... restart_syscall resumed>) = 0 [pid 5048] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5338] memfd_create("syzkaller", 0 [pid 5052] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5339] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5048] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5339] <... close resumed>) = 0 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5052] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] newfstatat(4, "", [pid 5052] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] unlink("./50/binderfs") = 0 [pid 5048] getdents64(4, [pid 5052] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4) = 0 [pid 5048] rmdir("./42/file0") = 0 [pid 5048] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] close(3) = 0 [pid 5048] rmdir("./42") = 0 [pid 5048] mkdir("./43", 0777) = 0 [pid 5051] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 3 [pid 5051] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5051] <... openat resumed>) = 3 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] newfstatat(3, "", [pid 5048] close(3 [pid 5339] symlink("/dev/binderfs", "./binderfs" [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... close resumed>) = 0 [pid 5052] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(3, [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5340 attached [pid 5339] <... symlink resumed>) = 0 [pid 5338] <... memfd_create resumed>) = 5 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] newfstatat(AT_FDCWD, "./50/file0", [pid 5051] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5340] set_robust_list(0x5555566e0760, 24 [pid 5339] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5340] <... set_robust_list resumed>) = 0 [pid 5339] <... socket resumed>) = 3 [pid 5052] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 45 [pid 5339] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5337] <... memfd_create resumed>) = 5 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5339] <... socket resumed>) = 4 [pid 5338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] unlink("./45/binderfs" [pid 5339] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5338] <... mmap resumed>) = 0x7f1263f98000 [pid 5337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] <... openat resumed>) = 4 [pid 5051] <... unlink resumed>) = 0 [pid 5340] chdir("./43") = 0 [pid 5339] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5338] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5337] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] newfstatat(4, "", [ 102.466612][ T5337] syz-executor493[5337]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 102.493418][ T5338] syz-executor493[5338]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5051] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5339] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5338] mkdir("./file0", 000 [pid 5337] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5337] mkdir("./file0", 000 [pid 5052] getdents64(4, [pid 5339] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5338] <... mkdir resumed>) = 0 [pid 5337] <... mkdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(4, [pid 5339] memfd_create("syzkaller", 0 [pid 5338] symlink(NULL, NULL [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5051] newfstatat(AT_FDCWD, "./45/file0", [pid 5338] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] rmdir("./50/file0" [pid 5051] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5337] symlink(NULL, NULL [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5337] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5337] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5337] <... mount resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(4, [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(3 [pid 5337] open(NULL, O_RDONLY [pid 5052] <... close resumed>) = 0 [pid 5051] close(4 [pid 5337] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] rmdir("./50" [pid 5051] <... close resumed>) = 0 [pid 5337] close(3) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] rmdir("./45/file0" [pid 5337] close(4) = 0 [pid 5337] close(5) = 0 [pid 5052] mkdir("./51", 0777 [pid 5337] close(6) = -1 EBADF (Bad file descriptor) [pid 5337] close(7 [pid 5051] <... rmdir resumed>) = 0 [pid 5051] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5338] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5337] close(8) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5337] close(9 [pid 5338] <... mount resumed>) = 0 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./45" [pid 5338] open(NULL, O_RDONLY [pid 5337] close(10 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5340] <... prctl resumed>) = 0 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5340] setpgid(0, 0) = 0 [pid 5340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5338] <... open resumed>) = -1 EFAULT (Bad address) [pid 5340] write(3, "1000", 4 [pid 5337] close(11 [pid 5338] close(3 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5340] <... write resumed>) = 4 [pid 5340] close(3) = 0 [pid 5338] <... close resumed>) = 0 [pid 5340] symlink("/dev/binderfs", "./binderfs" [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(4 [pid 5340] <... symlink resumed>) = 0 [pid 5340] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] <... openat resumed>) = 3 [pid 5051] mkdir("./46", 0777 [pid 5340] <... socket resumed>) = 3 [pid 5338] <... close resumed>) = 0 [pid 5337] close(12 [pid 5051] <... mkdir resumed>) = 0 [pid 5340] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5338] close(5 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5340] <... socket resumed>) = 4 [pid 5338] <... close resumed>) = 0 [pid 5337] close(13 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5340] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5338] close(6 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5340] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5337] close(14 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... openat resumed>) = 3 [pid 5340] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5338] close(7 [pid 5339] <... memfd_create resumed>) = 5 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5340] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5337] close(15 [pid 5052] <... close resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5340] memfd_create("syzkaller", 0 [pid 5339] <... mmap resumed>) = 0x7f1263f98000 [pid 5338] close(8 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5339] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(9) = -1 EBADF (Bad file descriptor) [pid 5339] mkdir("./file0", 000 [pid 5338] close(10) = -1 EBADF (Bad file descriptor) [pid 5337] close(16) = -1 EBADF (Bad file descriptor) [pid 5337] close(17) = -1 EBADF (Bad file descriptor) [pid 5337] close(18) = -1 EBADF (Bad file descriptor) [pid 5337] close(19) = -1 EBADF (Bad file descriptor) [pid 5337] close(20 [pid 5338] close(11 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5337] close(21) = -1 EBADF (Bad file descriptor) [pid 5337] close(22) = -1 EBADF (Bad file descriptor) [pid 5337] close(23 [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(12 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(13) = -1 EBADF (Bad file descriptor) [pid 5338] close(14) = -1 EBADF (Bad file descriptor) [pid 5337] close(24 [pid 5338] close(15) = -1 EBADF (Bad file descriptor) [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(16) = -1 EBADF (Bad file descriptor) [pid 5337] close(25 [pid 5338] close(17) = -1 EBADF (Bad file descriptor) [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(18) = -1 EBADF (Bad file descriptor) [pid 5337] close(26) = -1 EBADF (Bad file descriptor) [pid 5338] close(19 [pid 5339] <... mkdir resumed>) = 0 [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5337] close(27 [pid 5338] close(20) = -1 EBADF (Bad file descriptor) [pid 5338] close(21 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5337] close(28 [pid 5051] <... close resumed>) = 0 [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5337] close(29 [pid 5339] symlink(NULL, NULL [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5337] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5339] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5339] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5338] close(22 [pid 5337] exit_group(0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 48 [pid 5337] <... exit_group resumed>) = ? [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 53 [pid 5339] <... mount resumed>) = 0 [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(23./strace-static-x86_64: Process 5342 attached [pid 5342] set_robust_list(0x5555566e0760, 24 [pid 5339] open(NULL, O_RDONLY [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5337] +++ exited with 0 +++ [pid 5339] <... open resumed>) = -1 EFAULT (Bad address) [pid 5338] close(24 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5342] <... set_robust_list resumed>) = 0 [pid 5339] close(3 [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5341 attached [pid 5339] <... close resumed>) = 0 [pid 5341] set_robust_list(0x5555566e0760, 24 [pid 5338] close(25 [pid 5341] <... set_robust_list resumed>) = 0 [pid 5341] chdir("./51" [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5338] close(26 [pid 5339] close(4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(27 [pid 5050] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5339] <... close resumed>) = 0 [pid 5341] <... chdir resumed>) = 0 [pid 5342] chdir("./46" [pid 5339] close(5 [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5340] <... memfd_create resumed>) = 5 [pid 5339] <... close resumed>) = 0 [pid 5338] close(28 [pid 5050] newfstatat(3, "", [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] close(29 [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5341] <... prctl resumed>) = 0 [pid 5340] <... mmap resumed>) = 0x7f1263f98000 [ 102.517902][ T5339] syz-executor493[5339]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 102.553912][ T5340] syz-executor493[5340]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5341] setpgid(0, 0 [pid 5340] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5341] <... setpgid resumed>) = 0 [pid 5342] <... chdir resumed>) = 0 [pid 5340] mkdir("./file0", 000 [pid 5339] close(6 [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5340] <... mkdir resumed>) = 0 [pid 5338] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5341] <... openat resumed>) = 3 [pid 5342] <... prctl resumed>) = 0 [pid 5340] symlink(NULL, NULL [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5341] write(3, "1000", 4 [pid 5342] setpgid(0, 0 [pid 5340] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5339] close(7 [pid 5338] exit_group(0 [pid 5341] <... write resumed>) = 4 [pid 5342] <... setpgid resumed>) = 0 [pid 5340] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5341] close(3 [pid 5342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5340] <... mount resumed>) = 0 [pid 5339] close(8 [pid 5341] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5341] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5342] <... openat resumed>) = 3 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5342] write(3, "1000", 4 [pid 5339] close(9 [pid 5341] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5342] <... write resumed>) = 4 [pid 5340] open(NULL, O_RDONLY [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5341] <... socket resumed>) = 3 [pid 5340] <... open resumed>) = -1 EFAULT (Bad address) [pid 5342] close(3 [pid 5338] <... exit_group resumed>) = ? [pid 5339] close(10 [pid 5342] <... close resumed>) = 0 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5339] close(11 [pid 5340] close(3) = 0 [pid 5340] close(4) = 0 [pid 5341] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5339] close(12) = -1 EBADF (Bad file descriptor) [pid 5341] <... socket resumed>) = 4 [pid 5341] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5339] close(13 [pid 5341] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5341] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5342] symlink("/dev/binderfs", "./binderfs" [pid 5340] close(5 [pid 5339] close(14 [pid 5341] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5340] <... close resumed>) = 0 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5341] memfd_create("syzkaller", 0 [pid 5342] <... symlink resumed>) = 0 [pid 5340] close(6 [pid 5339] close(15 [pid 5342] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5340] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5338] +++ exited with 0 +++ [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5339] close(16 [pid 5050] unlink("./42/binderfs" [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5339] close(17 [pid 5050] <... unlink resumed>) = 0 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5342] <... socket resumed>) = 3 [pid 5339] close(18 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5050] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5342] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5339] close(19 [pid 5340] close(7) = -1 EBADF (Bad file descriptor) [pid 5340] close(8 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5339] close(20 [pid 5053] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5340] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5340] close(9 [pid 5053] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5340] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5340] close(10 [pid 5053] <... openat resumed>) = 3 [pid 5340] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5340] close(11) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5342] <... socket resumed>) = 4 [pid 5340] close(12) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = 0 [pid 5340] close(13) = -1 EBADF (Bad file descriptor) [pid 5340] close(14) = -1 EBADF (Bad file descriptor) [pid 5340] close(15) = -1 EBADF (Bad file descriptor) [pid 5340] close(16) = -1 EBADF (Bad file descriptor) [pid 5340] close(17) = -1 EBADF (Bad file descriptor) [pid 5340] close(18) = -1 EBADF (Bad file descriptor) [pid 5340] close(19) = -1 EBADF (Bad file descriptor) [pid 5339] close(21 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5340] close(20 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5340] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5339] close(22 [pid 5340] close(21 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5340] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./42/file0", [pid 5340] close(22) = -1 EBADF (Bad file descriptor) [pid 5340] close(23 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5340] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5340] close(24) = -1 EBADF (Bad file descriptor) [pid 5341] <... memfd_create resumed>) = 5 [pid 5340] close(25) = -1 EBADF (Bad file descriptor) [pid 5340] close(26 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5340] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5340] close(27) = -1 EBADF (Bad file descriptor) [pid 5340] close(28) = -1 EBADF (Bad file descriptor) [pid 5340] close(29) = -1 EBADF (Bad file descriptor) [pid 5342] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5340] exit_group(0 [pid 5339] close(23 [pid 5053] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5342] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5340] <... exit_group resumed>) = ? [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5342] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5340] +++ exited with 0 +++ [pid 5339] close(24 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] <... mmap resumed>) = 0x7f1263f98000 [pid 5342] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5341] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5341] mkdir("./file0", 000 [pid 5339] close(25 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] <... mkdir resumed>) = 0 [pid 5342] memfd_create("syzkaller", 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5341] symlink(NULL, NULL [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5341] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] unlink("./44/binderfs" [pid 5048] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5048] newfstatat(3, "", [pid 5341] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5341] <... mount resumed>) = 0 [pid 5048] getdents64(3, [pid 5341] open(NULL, O_RDONLY [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5341] <... open resumed>) = -1 EFAULT (Bad address) [pid 5048] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5341] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5341] close(4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5341] <... close resumed>) = 0 [pid 5048] unlink("./43/binderfs" [pid 5341] close(5 [pid 5048] <... unlink resumed>) = 0 [pid 5341] <... close resumed>) = 0 [pid 5048] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] close(6 [pid 5048] <... umount2 resumed>) = 0 [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] close(7 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(AT_FDCWD, "./43/file0", [pid 5341] close(8) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5341] close(9) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] close(10) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5341] close(11) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5341] close(12 [pid 5048] <... openat resumed>) = 4 [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(4, "", [pid 5341] close(13 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5341] close(14 [pid 5048] getdents64(4, [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5341] close(15 [pid 5048] getdents64(4, [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5341] close(16 [pid 5048] close(4 [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5341] close(17 [pid 5048] rmdir("./43/file0" [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5341] close(18 [pid 5048] <... rmdir resumed>) = 0 [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5341] close(19) = -1 EBADF (Bad file descriptor) [pid 5341] close(20) = -1 EBADF (Bad file descriptor) [pid 5341] close(21) = -1 EBADF (Bad file descriptor) [pid 5341] close(22) = -1 EBADF (Bad file descriptor) [pid 5341] close(23) = -1 EBADF (Bad file descriptor) [pid 5341] close(24) = -1 EBADF (Bad file descriptor) [pid 5341] close(25) = -1 EBADF (Bad file descriptor) [pid 5341] close(26) = -1 EBADF (Bad file descriptor) [pid 5341] close(27) = -1 EBADF (Bad file descriptor) [pid 5341] close(28) = -1 EBADF (Bad file descriptor) [pid 5341] close(29 [pid 5048] getdents64(3, [pid 5341] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5341] exit_group(0 [pid 5048] close(3 [pid 5341] <... exit_group resumed>) = ? [pid 5048] <... close resumed>) = 0 [pid 5341] +++ exited with 0 +++ [pid 5339] close(26 [pid 5053] <... unlink resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5048] rmdir("./43" [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5339] close(27 [pid 5053] <... umount2 resumed>) = 0 [pid 5050] getdents64(4, [pid 5048] <... rmdir resumed>) = 0 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5339] close(28 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] mkdir("./44", 0777 [pid 5339] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./44/file0", [pid 5050] getdents64(4, [pid 5339] close(29) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5339] exit_group(0 [pid 5053] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5050] close(4 [pid 5339] <... exit_group resumed>) = ? [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... close resumed>) = 0 [pid 5052] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5052] unlink("./51/binderfs" [pid 5048] <... openat resumed>) = 3 [pid 5052] <... unlink resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5339] +++ exited with 0 +++ [pid 5052] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 102.613467][ T5341] syz-executor493[5341]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 102.651714][ T5342] syz-executor493[5342]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5342] <... memfd_create resumed>) = 5 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = 0 [pid 5050] rmdir("./42/file0" [pid 5048] close(3 [pid 5342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... rmdir resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5342] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... openat resumed>) = 4 [pid 5049] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5053] newfstatat(4, "", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5342] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(AT_FDCWD, "./51/file0", [pid 5050] getdents64(3, [pid 5049] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5342] mkdir("./file0", 000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5342] <... mkdir resumed>) = 0 [pid 5053] getdents64(4, [pid 5049] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] close(3 [pid 5049] <... openat resumed>) = 3 [pid 5049] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 5343 attached [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... close resumed>) = 0 [pid 5049] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(4, [pid 5052] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./42" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5342] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5052] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] unlink("./45/binderfs" [pid 5342] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] <... openat resumed>) = 4 [pid 5342] <... mount resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5049] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] close(4 [pid 5342] open(NULL, O_RDONLY [pid 5053] <... close resumed>) = 0 [pid 5342] <... open resumed>) = -1 EFAULT (Bad address) [pid 5342] close(3) = 0 [pid 5053] rmdir("./44/file0" [pid 5049] <... umount2 resumed>) = 0 [pid 5343] set_robust_list(0x5555566e0760, 24 [pid 5342] close(4) = 0 [pid 5343] <... set_robust_list resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] chdir("./44" [pid 5053] getdents64(3, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5343] <... chdir resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] newfstatat(AT_FDCWD, "./45/file0", [pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5342] close(5 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5343] <... prctl resumed>) = 0 [pid 5342] <... close resumed>) = 0 [pid 5053] close(3 [pid 5052] getdents64(4, [pid 5050] mkdir("./43", 0777 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 46 [pid 5049] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] setpgid(0, 0 [pid 5342] close(6 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5343] <... setpgid resumed>) = 0 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5342] close(7 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5343] <... openat resumed>) = 3 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5052] getdents64(4, [pid 5049] newfstatat(4, "", [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5342] close(8 [pid 5052] close(4 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5049] getdents64(4, [pid 5342] close(9 [pid 5052] rmdir("./51/file0" [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5343] write(3, "1000", 4 [pid 5342] close(10 [pid 5343] <... write resumed>) = 4 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5343] close(3 [pid 5342] close(11 [pid 5343] <... close resumed>) = 0 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5343] symlink("/dev/binderfs", "./binderfs" [pid 5342] close(12 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] getdents64(4, [pid 5343] <... symlink resumed>) = 0 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5053] rmdir("./44" [pid 5052] getdents64(3, [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5342] close(13 [pid 5049] close(4 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5342] close(14 [pid 5049] <... close resumed>) = 0 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./45/file0" [pid 5342] close(15 [pid 5052] close(3 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5342] close(16) = -1 EBADF (Bad file descriptor) [pid 5342] close(17) = -1 EBADF (Bad file descriptor) [pid 5342] close(18) = -1 EBADF (Bad file descriptor) [pid 5342] close(19) = -1 EBADF (Bad file descriptor) [pid 5342] close(20 [pid 5049] <... rmdir resumed>) = 0 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5342] close(21 [pid 5052] <... close resumed>) = 0 [pid 5049] getdents64(3, [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5342] close(22 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./51" [pid 5049] close(3 [pid 5343] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5342] close(23 [pid 5053] <... rmdir resumed>) = 0 [pid 5343] <... socket resumed>) = 3 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5343] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5342] close(24 [pid 5052] <... rmdir resumed>) = 0 [pid 5343] <... socket resumed>) = 4 [pid 5342] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./45", 0777 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... close resumed>) = 0 [pid 5049] rmdir("./45" [pid 5342] close(25) = -1 EBADF (Bad file descriptor) [pid 5342] close(26) = -1 EBADF (Bad file descriptor) [pid 5342] close(27) = -1 EBADF (Bad file descriptor) [pid 5342] close(28) = -1 EBADF (Bad file descriptor) [pid 5342] close(29) = -1 EBADF (Bad file descriptor) [pid 5342] exit_group(0 [pid 5049] <... rmdir resumed>) = 0 [pid 5049] mkdir("./46", 0777 [pid 5342] <... exit_group resumed>) = ? [pid 5053] <... mkdir resumed>) = 0 [pid 5052] mkdir("./52", 0777 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... mkdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5343] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5343] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] <... openat resumed>) = 3 [pid 5343] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5342] +++ exited with 0 +++ [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... mkdir resumed>) = 0 [pid 5050] close(3 [pid 5049] <... openat resumed>) = 3 [pid 5343] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5343] memfd_create("syzkaller", 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] close(3 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] <... close resumed>) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] <... close resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... openat resumed>) = 3 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] close(3 [pid 5051] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5051] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./46/binderfs") = 0 [pid 5051] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] <... memfd_create resumed>) = 5 [pid 5343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5343] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5343] mkdir("./file0", 000./strace-static-x86_64: Process 5346 attached [pid 5346] set_robust_list(0x5555566e0760, 24) = 0 [pid 5346] chdir("./43") = 0 [pid 5346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5346] setpgid(0, 0) = 0 [pid 5346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5346] write(3, "1000", 4 [pid 5343] <... mkdir resumed>) = 0 [pid 5343] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5343] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5343] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5343] close(3) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 45 ./strace-static-x86_64: Process 5344 attached [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 47 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 48 [pid 5344] set_robust_list(0x5555566e0760, 24) = 0 ./strace-static-x86_64: Process 5345 attached [pid 5344] chdir("./45" [pid 5052] close(3 [pid 5345] set_robust_list(0x5555566e0760, 24 [pid 5344] <... chdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5345] <... set_robust_list resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5345] chdir("./46" [pid 5344] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] <... umount2 resumed>) = 0 [pid 5051] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5344] <... prctl resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5344] setpgid(0, 0 [pid 5051] newfstatat(AT_FDCWD, "./46/file0", [pid 5344] <... setpgid resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5345] <... chdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5344] <... openat resumed>) = 3 [pid 5051] <... openat resumed>) = 4 [pid 5344] write(3, "1000", 4 [pid 5346] <... write resumed>) = 4 [pid 5343] close(4 [pid 5051] newfstatat(4, "", [pid 5344] <... write resumed>) = 4 [pid 5346] close(3 [pid 5343] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5344] close(3 [pid 5346] <... close resumed>) = 0 [pid 5343] close(5 [pid 5051] getdents64(4, [pid 5345] <... prctl resumed>) = 0 [pid 5344] <... close resumed>) = 0 [pid 5346] symlink("/dev/binderfs", "./binderfs" [pid 5343] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5346] <... symlink resumed>) = 0 [pid 5343] close(6 [pid 5051] getdents64(4, [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 54 [pid 5345] setpgid(0, 0 [pid 5344] symlink("/dev/binderfs", "./binderfs" [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5345] <... setpgid resumed>) = 0 [pid 5344] <... symlink resumed>) = 0 [pid 5343] close(7 [pid 5051] close(4 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5343] close(8 [pid 5051] rmdir("./46/file0" [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5343] close(9 [pid 5051] getdents64(3, [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5347 attached [pid 5346] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5343] close(10 [pid 5051] close(3 [pid 5347] set_robust_list(0x5555566e0760, 24 [pid 5345] <... openat resumed>) = 3 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5347] <... set_robust_list resumed>) = 0 [pid 5344] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5346] <... socket resumed>) = 3 [pid 5343] close(11 [pid 5051] rmdir("./46" [pid 5347] chdir("./52" [pid 5344] <... socket resumed>) = 3 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5347] <... chdir resumed>) = 0 [ 102.738235][ T5343] syz-executor493[5343]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5344] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5346] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5343] close(12 [pid 5345] write(3, "1000", 4 [pid 5051] mkdir("./47", 0777 [pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5344] <... socket resumed>) = 4 [pid 5346] <... socket resumed>) = 4 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... mkdir resumed>) = 0 [pid 5347] <... prctl resumed>) = 0 [pid 5344] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5346] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5343] close(13 [pid 5347] setpgid(0, 0 [pid 5344] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... setpgid resumed>) = 0 [pid 5344] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5343] close(14 [pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5344] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... openat resumed>) = 3 [pid 5345] <... write resumed>) = 4 [pid 5344] memfd_create("syzkaller", 0 [pid 5346] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5343] close(15 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5347] write(3, "1000", 4 [pid 5345] close(3 [pid 5344] <... memfd_create resumed>) = 5 [pid 5346] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5347] <... write resumed>) = 4 [pid 5345] <... close resumed>) = 0 [pid 5344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5346] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5343] close(16 [pid 5347] close(3 [pid 5345] symlink("/dev/binderfs", "./binderfs" [pid 5344] <... mmap resumed>) = 0x7f1263f98000 [pid 5346] memfd_create("syzkaller", 0 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5347] <... close resumed>) = 0 [pid 5343] close(17 [pid 5347] symlink("/dev/binderfs", "./binderfs" [pid 5344] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5346] <... memfd_create resumed>) = 5 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5345] <... symlink resumed>) = 0 [pid 5347] <... symlink resumed>) = 0 [pid 5344] mkdir("./file0", 000 [pid 5343] close(18 [pid 5345] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5344] <... mkdir resumed>) = 0 [pid 5346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5345] <... socket resumed>) = 3 [pid 5346] <... mmap resumed>) = 0x7f1263f98000 [pid 5343] close(19 [pid 5347] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5346] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5345] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5347] <... socket resumed>) = 3 [pid 5344] symlink(NULL, NULL [pid 5346] mkdir("./file0", 000 [pid 5343] close(20 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5347] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5345] <... socket resumed>) = 4 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... socket resumed>) = 4 [pid 5344] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5346] <... mkdir resumed>) = 0 [pid 5343] close(21) = -1 EBADF (Bad file descriptor) [pid 5343] close(22) = -1 EBADF (Bad file descriptor) [pid 5343] close(23) = -1 EBADF (Bad file descriptor) [pid 5343] close(24) = -1 EBADF (Bad file descriptor) [pid 5346] symlink(NULL, NULL [pid 5343] close(25) = -1 EBADF (Bad file descriptor) [pid 5343] close(26 [pid 5345] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5343] close(27 [pid 5345] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5344] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5345] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5344] <... mount resumed>) = 0 [pid 5343] close(28 [pid 5347] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5346] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5345] memfd_create("syzkaller", 0 [pid 5346] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5343] close(29./strace-static-x86_64: Process 5348 attached [pid 5347] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5345] <... memfd_create resumed>) = 5 [pid 5344] open(NULL, O_RDONLY [pid 5346] <... mount resumed>) = 0 [pid 5343] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 49 [pid 5348] set_robust_list(0x5555566e0760, 24 [pid 5347] memfd_create("syzkaller", 0 [pid 5344] <... open resumed>) = -1 EFAULT (Bad address) [pid 5343] exit_group(0 [pid 5347] <... memfd_create resumed>) = 5 [pid 5345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5344] close(3 [pid 5343] <... exit_group resumed>) = ? [pid 5347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5345] <... mmap resumed>) = 0x7f1263f98000 [pid 5345] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5344] <... close resumed>) = 0 [pid 5347] <... mmap resumed>) = 0x7f1263f98000 [pid 5345] mkdir("./file0", 000 [pid 5344] close(4 [pid 5346] open(NULL, O_RDONLY [pid 5348] <... set_robust_list resumed>) = 0 [pid 5347] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5344] <... close resumed>) = 0 [pid 5348] chdir("./47" [pid 5347] mkdir("./file0", 000 [pid 5344] close(5 [pid 5348] <... chdir resumed>) = 0 [pid 5347] <... mkdir resumed>) = 0 [pid 5345] <... mkdir resumed>) = 0 [pid 5344] <... close resumed>) = 0 [pid 5348] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5346] <... open resumed>) = -1 EFAULT (Bad address) [pid 5348] <... prctl resumed>) = 0 [pid 5347] symlink(NULL, NULL [pid 5345] symlink(NULL, NULL [pid 5344] close(6 [pid 5346] close(3 [pid 5348] setpgid(0, 0 [pid 5347] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = 0 [pid 5343] +++ exited with 0 +++ [pid 5348] <... setpgid resumed>) = 0 [pid 5347] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5344] close(7 [pid 5346] close(4 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5347] <... mount resumed>) = 0 [pid 5345] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = 0 [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5348] <... openat resumed>) = 3 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5346] close(5 [pid 5345] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5344] close(8 [pid 5346] <... close resumed>) = 0 [pid 5348] write(3, "1000", 4 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(6 [pid 5048] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5348] <... write resumed>) = 4 [pid 5347] open(NULL, O_RDONLY [pid 5344] close(9 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5348] close(3 [pid 5347] <... open resumed>) = -1 EFAULT (Bad address) [pid 5345] <... mount resumed>) = 0 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(7 [pid 5048] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5348] <... close resumed>) = 0 [pid 5347] close(3 [pid 5344] close(10 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5348] symlink("/dev/binderfs", "./binderfs" [pid 5347] <... close resumed>) = 0 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(8 [pid 5048] newfstatat(3, "", [pid 5348] <... symlink resumed>) = 0 [pid 5347] close(4 [pid 5345] open(NULL, O_RDONLY [pid 5344] close(11 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5347] <... close resumed>) = 0 [pid 5345] <... open resumed>) = -1 EFAULT (Bad address) [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(9 [pid 5048] getdents64(3, [pid 5348] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5347] close(5 [pid 5345] close(3 [pid 5344] close(12 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5348] <... socket resumed>) = 3 [pid 5347] <... close resumed>) = 0 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(10 [pid 5048] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5348] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5347] close(6 [pid 5344] close(13 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5348] <... socket resumed>) = 4 [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(11 [pid 5048] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5348] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5347] close(7 [pid 5344] close(14 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5348] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(4 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(12 [pid 5048] unlink("./44/binderfs" [pid 5348] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5347] close(8 [pid 5345] <... close resumed>) = 0 [pid 5344] close(15 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... unlink resumed>) = 0 [pid 5348] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(5 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(13 [pid 5048] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5348] memfd_create("syzkaller", 0 [pid 5347] close(9 [pid 5344] close(16 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = 0 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(14 [pid 5048] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5348] <... memfd_create resumed>) = 5 [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(17 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5347] close(10 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(15 [pid 5048] newfstatat(AT_FDCWD, "./44/file0", [pid 5348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(18 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5348] <... mmap resumed>) = 0x7f1263f98000 [pid 5347] close(11 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(16 [pid 5048] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(19 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5348] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5347] close(12 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(17 [pid 5048] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5348] mkdir("./file0", 000 [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(20 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 4 [pid 5348] <... mkdir resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5345] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5345] close(6 [pid 5048] getdents64(4, [pid 5347] close(13 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(18 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5348] symlink(NULL, NULL [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(21 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(4, [pid 5348] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5347] close(14 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(19 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5348] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(22 [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(4 [pid 5348] <... mount resumed>) = 0 [pid 5347] close(15 [pid 5345] close(7 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] close(20 [pid 5048] <... close resumed>) = 0 [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(23 [pid 5048] rmdir("./44/file0" [pid 5347] close(16 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... rmdir resumed>) = 0 [pid 5348] open(NULL, O_RDONLY [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(24 [pid 5346] close(21 [pid 5048] getdents64(3, [pid 5348] <... open resumed>) = -1 EFAULT (Bad address) [pid 5347] close(17 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5348] close(3 [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(8 [pid 5344] close(25 [pid 5346] close(22 [pid 5048] close(3 [pid 5348] <... close resumed>) = 0 [pid 5347] close(18 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5348] close(4 [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(9 [pid 5344] close(26 [pid 5346] close(23 [pid 5048] rmdir("./44" [pid 5348] <... close resumed>) = 0 [pid 5347] close(19 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... rmdir resumed>) = 0 [pid 5348] close(5 [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(10 [pid 5344] close(27 [pid 5346] close(24 [pid 5048] mkdir("./45", 0777 [pid 5348] <... close resumed>) = 0 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(11) = -1 EBADF (Bad file descriptor) [pid 5345] close(12) = -1 EBADF (Bad file descriptor) [pid 5345] close(13) = -1 EBADF (Bad file descriptor) [pid 5348] close(6 [pid 5345] close(14) = -1 EBADF (Bad file descriptor) [pid 5345] close(15) = -1 EBADF (Bad file descriptor) [pid 5345] close(16 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5348] close(7) = -1 EBADF (Bad file descriptor) [pid 5048] <... mkdir resumed>) = 0 [pid 5348] close(8) = -1 EBADF (Bad file descriptor) [pid 5348] close(9 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5348] close(10 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(17 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5348] close(11 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(28 [pid 5346] close(25 [pid 5048] <... close resumed>) = 0 [pid 5348] close(12 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] close(29 [pid 5346] close(26 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5348] close(13 [pid 5347] close(20 [pid 5344] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] exit_group(0 [pid 5348] close(14 [pid 5347] close(21 [pid 5346] close(27 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(18 [pid 5344] <... exit_group resumed>) = ? [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5348] close(15 [pid 5347] close(22 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5344] +++ exited with 0 +++ [pid 5346] close(28 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5348] close(16 [pid 5347] close(23 [pid 5346] close(29 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5349 attached [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5348] close(17 [pid 5347] close(24 [pid 5345] close(19 [pid 5346] exit_group(0 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 47 [pid 5349] set_robust_list(0x5555566e0760, 24 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5346] <... exit_group resumed>) = ? [pid 5349] <... set_robust_list resumed>) = 0 [pid 5348] close(18 [pid 5347] close(25 [pid 5345] close(20 [pid 5346] +++ exited with 0 +++ [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] close(26 [pid 5053] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5347] close(27 [pid 5053] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5348] close(19 [pid 5347] close(28 [pid 5053] newfstatat(3, "", [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5349] chdir("./45" [pid 5348] close(20 [pid 5347] close(29 [pid 5053] getdents64(3, [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5348] close(21 [pid 5347] exit_group(0 [pid 5053] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5347] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5347] +++ exited with 0 +++ [pid 5053] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] unlink("./45/binderfs") = 0 [pid 5349] <... chdir resumed>) = 0 [pid 5348] close(22 [pid 5053] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5349] <... prctl resumed>) = 0 [pid 5348] close(23 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5349] setpgid(0, 0 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5349] <... setpgid resumed>) = 0 [pid 5345] close(21 [pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5348] close(24 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(22 [pid 5053] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] <... openat resumed>) = 3 [pid 5348] close(25 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] write(3, "1000", 4 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(23 [pid 5053] newfstatat(AT_FDCWD, "./45/file0", [pid 5349] <... write resumed>) = 4 [pid 5348] close(26 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5349] close(3 [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(24 [pid 5053] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] <... close resumed>) = 0 [pid 5348] close(27 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] symlink("/dev/binderfs", "./binderfs" [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(25 [pid 5053] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] <... symlink resumed>) = 0 [pid 5348] close(28 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5052] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(26 [pid 5053] newfstatat(4, "", [pid 5349] <... socket resumed>) = 3 [pid 5348] close(29 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 3 [pid 5349] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5348] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5345] close(27 [pid 5053] getdents64(4, [pid 5052] newfstatat(3, "", [pid 5050] newfstatat(3, "", [pid 5349] <... socket resumed>) = 4 [pid 5348] exit_group(0 [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5349] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5348] <... exit_group resumed>) = ? [pid 5345] close(28 [pid 5053] getdents64(4, [pid 5052] getdents64(3, [pid 5349] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5348] +++ exited with 0 +++ [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5345] close(29 [pid 5053] close(4 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5349] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... close resumed>) = 0 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5345] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5349] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] rmdir("./45/file0" [pid 5345] exit_group(0 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5345] <... exit_group resumed>) = ? [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] memfd_create("syzkaller", 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] <... memfd_create resumed>) = 5 [pid 5051] <... openat resumed>) = 3 [pid 5349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] newfstatat(3, "", [pid 5349] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] getdents64(3, [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, [pid 5345] +++ exited with 0 +++ [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] getdents64(3, [pid 5349] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] close(3 [pid 5051] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5349] mkdir("./file0", 000 [pid 5053] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5349] <... mkdir resumed>) = 0 [pid 5053] rmdir("./45" [pid 5050] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5049] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] symlink(NULL, NULL [pid 5052] newfstatat(AT_FDCWD, "./52/binderfs", [pid 5051] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] mkdir("./46", 0777 [pid 5051] unlink("./47/binderfs" [pid 5349] <... mount resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5050] unlink("./43/binderfs" [pid 5049] <... openat resumed>) = 3 [pid 5049] newfstatat(3, "", [pid 5051] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5349] open(NULL, O_RDONLY [pid 5049] getdents64(3, [pid 5349] <... open resumed>) = -1 EFAULT (Bad address) [pid 5349] close(3) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5349] close(4 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5349] close(5) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5349] close(6 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] unlink("./46/binderfs" [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... unlink resumed>) = 0 [pid 5349] close(7) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5349] close(8 [pid 5053] <... close resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5050] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./52/binderfs" [pid 5051] <... umount2 resumed>) = 0 [pid 5049] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] close(9 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] close(10 [pid 5051] newfstatat(AT_FDCWD, "./47/file0", [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5349] close(11 [pid 5051] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] close(12 [pid 5051] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5349] close(13 [pid 5051] <... openat resumed>) = 4 [pid 5050] <... umount2 resumed>) = 0 [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = 0 [pid 5349] close(14 [pid 5051] newfstatat(4, "", [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] close(15 [pid 5051] getdents64(4, [pid 5050] newfstatat(AT_FDCWD, "./43/file0", [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5349] close(16 [pid 5051] getdents64(4, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5350 attached [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5350] set_robust_list(0x5555566e0760, 24 [pid 5349] close(17 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 48 [pid 5051] close(4 [pid 5050] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./46/file0", [pid 5350] <... set_robust_list resumed>) = 0 [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5350] chdir("./46" [pid 5349] close(18 [pid 5052] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] rmdir("./47/file0" [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5350] <... chdir resumed>) = 0 [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5349] close(19 [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5350] <... prctl resumed>) = 0 [pid 5349] close(20 [pid 5350] setpgid(0, 0 [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5350] <... setpgid resumed>) = 0 [pid 5349] close(21 [pid 5051] getdents64(3, [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5349] close(22 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5349] close(23 [pid 5051] close(3 [pid 5350] <... openat resumed>) = 3 [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5349] close(24) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./47" [pid 5349] close(25 [pid 5350] write(3, "1000", 4 [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5349] close(26) = -1 EBADF (Bad file descriptor) [pid 5350] <... write resumed>) = 4 [pid 5349] close(27 [pid 5350] close(3 [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5350] <... close resumed>) = 0 [pid 5349] close(28 [pid 5350] symlink("/dev/binderfs", "./binderfs" [pid 5349] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5350] <... symlink resumed>) = 0 [pid 5349] close(29) = -1 EBADF (Bad file descriptor) [pid 5349] exit_group(0 [pid 5051] mkdir("./48", 0777 [pid 5350] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5349] <... exit_group resumed>) = ? [pid 5350] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] <... mkdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... openat resumed>) = 4 [pid 5350] <... socket resumed>) = 4 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5350] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] <... openat resumed>) = 3 [pid 5350] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5350] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5349] +++ exited with 0 +++ [pid 5052] newfstatat(AT_FDCWD, "./52/file0", [pid 5050] newfstatat(4, "", [pid 5049] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5350] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5350] memfd_create("syzkaller", 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5350] <... memfd_create resumed>) = 5 [pid 5051] close(3 [pid 5048] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5350] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... openat resumed>) = 3 [pid 5048] newfstatat(3, "", [pid 5350] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5350] mkdir("./file0", 000) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(4, [pid 5049] newfstatat(4, "", [pid 5048] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(4, [pid 5050] getdents64(4, [pid 5350] symlink(NULL, NULL [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5351 attached [pid 5350] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] <... openat resumed>) = 4 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 50 [pid 5050] close(4 [pid 5049] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5351] set_robust_list(0x5555566e0760, 24 [pid 5050] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5050] rmdir("./43/file0" [pid 5351] <... set_robust_list resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5049] close(4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5351] chdir("./48" [pid 5350] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] unlink("./45/binderfs" [pid 5350] <... mount resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5048] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5048] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./45/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5350] open(NULL, O_RDONLY [pid 5048] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5350] <... open resumed>) = -1 EFAULT (Bad address) [pid 5048] <... openat resumed>) = 4 [pid 5048] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5350] close(3 [pid 5048] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5350] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5048] rmdir("./45/file0" [pid 5350] close(4 [pid 5048] <... rmdir resumed>) = 0 [pid 5350] <... close resumed>) = 0 [pid 5048] getdents64(3, [pid 5350] close(5 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5350] <... close resumed>) = 0 [pid 5048] close(3 [pid 5350] close(6 [pid 5048] <... close resumed>) = 0 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./46/file0" [pid 5048] rmdir("./45" [pid 5351] <... chdir resumed>) = 0 [pid 5350] close(7 [pid 5052] getdents64(4, [pid 5050] getdents64(3, [pid 5048] <... rmdir resumed>) = 0 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5050] close(3 [pid 5052] getdents64(4, [pid 5049] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] rmdir("./43" [pid 5049] close(3 [pid 5351] <... prctl resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5351] setpgid(0, 0 [pid 5350] close(8 [pid 5049] rmdir("./46" [pid 5052] close(4 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5350] close(9) = -1 EBADF (Bad file descriptor) [pid 5350] close(10) = -1 EBADF (Bad file descriptor) [pid 5350] close(11) = -1 EBADF (Bad file descriptor) [pid 5350] close(12) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5350] close(13) = -1 EBADF (Bad file descriptor) [pid 5350] close(14 [pid 5048] mkdir("./46", 0777 [pid 5351] <... setpgid resumed>) = 0 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5050] mkdir("./44", 0777 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5052] rmdir("./52/file0" [pid 5350] close(15 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5350] close(16 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] mkdir("./47", 0777 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5350] close(17 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... mkdir resumed>) = 0 [pid 5048] close(3 [pid 5350] close(18 [pid 5048] <... close resumed>) = 0 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5350] close(19 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5351] <... openat resumed>) = 3 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... mkdir resumed>) = 0 [pid 5350] close(20 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5350] close(21) = -1 EBADF (Bad file descriptor) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5352 attached [pid 5351] write(3, "1000", 4 [pid 5350] close(22 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5352] set_robust_list(0x5555566e0760, 24 [pid 5351] <... write resumed>) = 4 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 48 [pid 5351] close(3 [pid 5350] close(23 [pid 5052] close(3 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5352] <... set_robust_list resumed>) = 0 [pid 5351] <... close resumed>) = 0 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5352] chdir("./46" [pid 5351] symlink("/dev/binderfs", "./binderfs" [pid 5350] close(24 [pid 5052] <... close resumed>) = 0 [pid 5050] close(3 [pid 5352] <... chdir resumed>) = 0 [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5351] <... symlink resumed>) = 0 [pid 5350] close(25 [pid 5352] <... prctl resumed>) = 0 [pid 5351] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./52" [pid 5050] <... close resumed>) = 0 [pid 5049] close(3 [pid 5352] setpgid(0, 0 [pid 5351] <... socket resumed>) = 3 [pid 5350] close(26 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5352] <... setpgid resumed>) = 0 [pid 5351] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5350] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5350] close(27) = -1 EBADF (Bad file descriptor) [pid 5350] close(28) = -1 EBADF (Bad file descriptor) [pid 5352] <... openat resumed>) = 3 [pid 5350] close(29) = -1 EBADF (Bad file descriptor) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5351] <... socket resumed>) = 4 [pid 5350] exit_group(0 [pid 5052] mkdir("./53", 0777./strace-static-x86_64: Process 5353 attached [pid 5350] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5354 attached [pid 5353] set_robust_list(0x5555566e0760, 24 [pid 5352] write(3, "1000", 4 [pid 5351] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5350] +++ exited with 0 +++ [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 46 [pid 5354] set_robust_list(0x5555566e0760, 24 [pid 5353] <... set_robust_list resumed>) = 0 [pid 5352] <... write resumed>) = 4 [pid 5351] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 49 [pid 5354] <... set_robust_list resumed>) = 0 [pid 5353] chdir("./44" [pid 5352] close(3 [pid 5351] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5351] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5352] <... close resumed>) = 0 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5353] <... chdir resumed>) = 0 [pid 5352] symlink("/dev/binderfs", "./binderfs" [pid 5351] memfd_create("syzkaller", 0 [pid 5354] chdir("./47" [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5352] <... symlink resumed>) = 0 [pid 5351] <... memfd_create resumed>) = 5 [pid 5052] <... openat resumed>) = 3 [pid 5354] <... chdir resumed>) = 0 [pid 5351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5353] <... prctl resumed>) = 0 [pid 5352] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5351] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5354] <... prctl resumed>) = 0 [pid 5353] setpgid(0, 0 [pid 5352] <... socket resumed>) = 3 [pid 5351] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] close(3 [pid 5354] setpgid(0, 0 [pid 5353] <... setpgid resumed>) = 0 [pid 5351] mkdir("./file0", 000 [pid 5053] <... openat resumed>) = 3 [pid 5354] <... setpgid resumed>) = 0 [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5352] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] newfstatat(3, "", [pid 5052] <... close resumed>) = 0 [pid 5354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5353] <... openat resumed>) = 3 [pid 5352] <... socket resumed>) = 4 [pid 5351] <... mkdir resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5352] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] write(3, "1000", 4 [pid 5352] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5353] <... write resumed>) = 4 [pid 5352] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5353] close(3 [pid 5352] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5353] <... close resumed>) = 0 [pid 5352] memfd_create("syzkaller", 0 [pid 5053] unlink("./46/binderfs" [pid 5354] <... openat resumed>) = 3 [pid 5351] symlink(NULL, NULL [pid 5053] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5355 attached [pid 5354] write(3, "1000", 4 [pid 5353] symlink("/dev/binderfs", "./binderfs" [pid 5352] <... memfd_create resumed>) = 5 [pid 5351] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 55 [pid 5355] set_robust_list(0x5555566e0760, 24 [pid 5354] <... write resumed>) = 4 [pid 5353] <... symlink resumed>) = 0 [pid 5352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5351] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5355] <... set_robust_list resumed>) = 0 [pid 5354] close(3 [pid 5353] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5352] <... mmap resumed>) = 0x7f1263f98000 [pid 5351] <... mount resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5355] chdir("./53" [pid 5354] <... close resumed>) = 0 [pid 5353] <... socket resumed>) = 3 [pid 5352] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5355] <... chdir resumed>) = 0 [pid 5354] symlink("/dev/binderfs", "./binderfs" [pid 5353] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5351] open(NULL, O_RDONLY [pid 5053] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] <... socket resumed>) = 4 [pid 5352] mkdir("./file0", 000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5354] <... symlink resumed>) = 0 [pid 5353] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5352] <... mkdir resumed>) = 0 [pid 5351] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] newfstatat(AT_FDCWD, "./46/file0", [pid 5355] <... prctl resumed>) = 0 [pid 5354] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5351] close(3 [pid 5355] setpgid(0, 0 [pid 5354] <... socket resumed>) = 3 [pid 5353] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5351] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5355] <... setpgid resumed>) = 0 [pid 5354] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5353] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5351] close(4 [pid 5053] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5354] <... socket resumed>) = 4 [pid 5353] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5352] symlink(NULL, NULL [pid 5351] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] <... openat resumed>) = 3 [pid 5354] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5353] memfd_create("syzkaller", 0 [pid 5352] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5351] close(5 [pid 5053] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5354] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5353] <... memfd_create resumed>) = 5 [pid 5352] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5351] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5355] write(3, "1000", 4 [pid 5354] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5351] close(6 [pid 5355] <... write resumed>) = 4 [pid 5354] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5353] <... mmap resumed>) = 0x7f1263f98000 [pid 5352] <... mount resumed>) = 0 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5355] close(3) = 0 [pid 5354] memfd_create("syzkaller", 0 [pid 5355] symlink("/dev/binderfs", "./binderfs" [pid 5353] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5351] close(7 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5355] <... symlink resumed>) = 0 [pid 5354] <... memfd_create resumed>) = 5 [pid 5353] mkdir("./file0", 000 [pid 5352] open(NULL, O_RDONLY [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5351] close(8) = -1 EBADF (Bad file descriptor) [pid 5351] close(9 [pid 5354] <... mmap resumed>) = 0x7f1263f98000 [pid 5353] <... mkdir resumed>) = 0 [pid 5352] <... open resumed>) = -1 EFAULT (Bad address) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5352] close(3 [pid 5351] close(10 [pid 5053] getdents64(4, [pid 5355] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5354] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5352] <... close resumed>) = 0 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5354] mkdir("./file0", 000 [pid 5351] close(11) = -1 EBADF (Bad file descriptor) [pid 5351] close(12) = -1 EBADF (Bad file descriptor) [pid 5351] close(13) = -1 EBADF (Bad file descriptor) [pid 5355] <... socket resumed>) = 3 [pid 5353] symlink(NULL, NULL [pid 5352] close(4 [pid 5351] close(14 [pid 5053] close(4 [pid 5354] <... mkdir resumed>) = 0 [pid 5353] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5352] <... close resumed>) = 0 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5355] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5353] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5352] close(5 [pid 5351] close(15 [pid 5053] rmdir("./46/file0" [pid 5355] <... socket resumed>) = 4 [pid 5354] symlink(NULL, NULL [pid 5353] <... mount resumed>) = 0 [pid 5352] <... close resumed>) = 0 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5355] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5354] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5353] open(NULL, O_RDONLY [pid 5352] close(6 [pid 5351] close(16 [pid 5355] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5354] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5353] <... open resumed>) = -1 EFAULT (Bad address) [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5355] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5354] <... mount resumed>) = 0 [pid 5353] close(3 [pid 5352] close(7 [pid 5351] close(17 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5355] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5354] open(NULL, O_RDONLY [pid 5353] <... close resumed>) = 0 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5355] memfd_create("syzkaller", 0 [pid 5354] <... open resumed>) = -1 EFAULT (Bad address) [pid 5353] close(4 [pid 5352] close(8 [pid 5351] close(18 [pid 5053] <... close resumed>) = 0 [pid 5355] <... memfd_create resumed>) = 5 [pid 5354] close(3 [pid 5353] <... close resumed>) = 0 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./46" [pid 5355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5354] <... close resumed>) = 0 [pid 5353] close(5 [pid 5352] close(9 [pid 5351] close(19 [pid 5053] <... rmdir resumed>) = 0 [pid 5355] <... mmap resumed>) = 0x7f1263f98000 [pid 5354] close(4 [pid 5353] <... close resumed>) = 0 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./47", 0777 [pid 5355] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5354] <... close resumed>) = 0 [pid 5353] close(6 [pid 5352] close(10 [pid 5351] close(20 [pid 5053] <... mkdir resumed>) = 0 [pid 5355] mkdir("./file0", 000 [pid 5354] close(5 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] close(21) = -1 EBADF (Bad file descriptor) [pid 5355] <... mkdir resumed>) = 0 [pid 5354] <... close resumed>) = 0 [pid 5352] close(11 [pid 5351] close(22 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] close(6 [pid 5351] close(23 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] close(7 [pid 5351] close(24 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] close(8 [pid 5351] close(25 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5355] symlink(NULL, NULL [pid 5353] close(7 [pid 5354] close(9 [pid 5352] close(12 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5355] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] close(26 [pid 5053] <... openat resumed>) = 3 [pid 5355] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5354] close(10 [pid 5353] close(8 [pid 5352] close(13 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5355] <... mount resumed>) = 0 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] close(27 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5354] close(11 [pid 5352] close(14 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(9 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] close(28 [pid 5053] close(3 [pid 5354] close(12 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(15 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5355] open(NULL, O_RDONLY [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(10 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] close(29 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5355] <... open resumed>) = -1 EFAULT (Bad address) [pid 5354] close(13 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(16 [pid 5351] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5355] close(3 [pid 5353] close(11 [pid 5352] close(17 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5355] <... close resumed>) = 0 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(12 [pid 5351] exit_group(0 [pid 5355] close(4 [pid 5354] close(14 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(18 [pid 5351] <... exit_group resumed>) = ? [pid 5355] <... close resumed>) = 0 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(13 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5356 attached [pid 5355] close(5 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(19 [pid 5356] set_robust_list(0x5555566e0760, 24 [pid 5355] <... close resumed>) = 0 [pid 5353] close(14 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 49 [pid 5356] <... set_robust_list resumed>) = 0 [pid 5355] close(6 [pid 5354] close(15 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(20 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(15 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5356] chdir("./47" [pid 5355] close(7 [pid 5354] close(16 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(21 [pid 5356] <... chdir resumed>) = 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(16 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5355] close(8 [pid 5354] close(17 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(22 [pid 5356] <... prctl resumed>) = 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(17 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5356] setpgid(0, 0 [pid 5355] close(9 [pid 5354] close(18 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(23 [pid 5356] <... setpgid resumed>) = 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(18 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5355] close(10 [pid 5354] close(19 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(24 [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(19 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5356] <... openat resumed>) = 3 [pid 5355] close(11 [pid 5354] close(20 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(25 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(20 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5351] +++ exited with 0 +++ [pid 5356] write(3, "1000", 4 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] close(21 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(26 [pid 5356] <... write resumed>) = 4 [pid 5355] close(12 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(21 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5356] close(3 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] close(22 [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(27 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5356] <... close resumed>) = 0 [pid 5355] close(13 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] close(22 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(28 [pid 5356] symlink("/dev/binderfs", "./binderfs" [pid 5355] close(14 [pid 5353] close(23 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] close(29 [pid 5355] close(15 [pid 5353] close(24 [pid 5352] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] close(23) = -1 EBADF (Bad file descriptor) [pid 5355] close(16 [pid 5354] close(24 [pid 5353] close(25 [pid 5352] exit_group(0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5352] <... exit_group resumed>) = ? [pid 5051] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5355] close(17 [pid 5354] close(25 [pid 5353] close(26 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5354] close(26 [pid 5353] close(27 [pid 5355] close(18 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] close(27 [pid 5353] close(28 [pid 5355] close(19 [pid 5354] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5353] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5354] close(28) = -1 EBADF (Bad file descriptor) [pid 5354] close(29) = -1 EBADF (Bad file descriptor) [pid 5354] exit_group(0) = ? [pid 5352] +++ exited with 0 +++ [pid 5355] close(20 [pid 5353] close(29) = -1 EBADF (Bad file descriptor) [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5353] exit_group(0 [pid 5355] close(21 [pid 5356] <... symlink resumed>) = 0 [pid 5354] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(3, "", [pid 5353] <... exit_group resumed>) = ? [pid 5356] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5049] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5049] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5353] +++ exited with 0 +++ [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5356] <... socket resumed>) = 3 [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5049] unlink("./47/binderfs" [pid 5048] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5355] close(22 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... restart_syscall resumed>) = 0 [pid 5356] <... socket resumed>) = 4 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] close(23 [pid 5048] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5356] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5050] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5355] close(24 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 3 [pid 5356] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5356] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5355] close(25 [pid 5051] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... openat resumed>) = 3 [pid 5048] newfstatat(3, "", [pid 5049] <... umount2 resumed>) = 0 [pid 5049] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] memfd_create("syzkaller", 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(3, "", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] close(26 [pid 5051] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] newfstatat(AT_FDCWD, "./47/file0", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5355] close(27 [pid 5051] unlink("./48/binderfs" [pid 5050] getdents64(3, [pid 5049] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] close(28 [pid 5356] <... memfd_create resumed>) = 5 [pid 5049] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... openat resumed>) = 4 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5355] close(29 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(4, "", [pid 5355] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5356] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] getdents64(4, [pid 5355] exit_group(0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5356] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5050] unlink("./44/binderfs" [pid 5049] getdents64(4, [pid 5048] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5355] <... exit_group resumed>) = ? [pid 5049] close(4) = 0 [pid 5049] rmdir("./47/file0" [pid 5050] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5049] getdents64(3, [pid 5050] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(AT_FDCWD, "./44/file0", [pid 5049] close(3 [pid 5356] mkdir("./file0", 000 [pid 5355] +++ exited with 0 +++ [pid 5051] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5356] <... mkdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5050] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] unlink("./46/binderfs" [pid 5052] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5051] newfstatat(AT_FDCWD, "./48/file0", [pid 5050] <... openat resumed>) = 4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] newfstatat(4, "", [pid 5048] <... unlink resumed>) = 0 [pid 5052] getdents64(3, [pid 5356] symlink(NULL, NULL [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(4, [pid 5049] rmdir("./47" [pid 5356] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] newfstatat(AT_FDCWD, "./53/binderfs", [pid 5051] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5356] <... mount resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5050] getdents64(4, [pid 5049] mkdir("./48", 0777 [pid 5048] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] unlink("./53/binderfs" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5356] open(NULL, O_RDONLY [pid 5052] <... unlink resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./46/file0", [pid 5052] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] close(4 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5356] close(3 [pid 5051] getdents64(4, [pid 5050] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5356] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] rmdir("./44/file0" [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5356] close(4 [pid 5052] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] close(3 [pid 5052] newfstatat(AT_FDCWD, "./53/file0", [pid 5051] close(4 [pid 5049] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] getdents64(3, [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5356] <... close resumed>) = 0 [pid 5052] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] rmdir("./48/file0" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5356] close(5 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] close(3 [pid 5048] <... openat resumed>) = 4 [pid 5052] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] newfstatat(4, "", [pid 5356] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5051] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5356] close(6 [pid 5052] newfstatat(4, "", [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] rmdir("./44" [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] close(3 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5356] close(7 [pid 5051] <... close resumed>) = 0 [pid 5050] mkdir("./45", 0777./strace-static-x86_64: Process 5357 attached [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5051] rmdir("./48" [pid 5050] <... mkdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5356] close(8 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... rmdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5357] set_robust_list(0x5555566e0760, 24 [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 50 [pid 5356] close(9 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5356] close(10 [pid 5051] mkdir("./49", 0777 [pid 5050] <... openat resumed>) = 3 [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5356] close(11 [pid 5051] <... mkdir resumed>) = 0 [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5356] close(12) = -1 EBADF (Bad file descriptor) [pid 5356] close(13) = -1 EBADF (Bad file descriptor) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5356] close(14) = -1 EBADF (Bad file descriptor) [pid 5356] close(15) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5357] <... set_robust_list resumed>) = 0 [pid 5356] close(16 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5050] close(3 [pid 5357] chdir("./48" [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5050] <... close resumed>) = 0 [pid 5048] close(4 [pid 5357] <... chdir resumed>) = 0 [pid 5356] close(17 [pid 5052] <... close resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./53/file0" [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... close resumed>) = 0 [pid 5356] close(18) = -1 EBADF (Bad file descriptor) [pid 5356] close(19) = -1 EBADF (Bad file descriptor) [pid 5356] close(20) = -1 EBADF (Bad file descriptor) [pid 5356] close(21) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5048] rmdir("./46/file0" [pid 5357] <... prctl resumed>) = 0 [pid 5052] getdents64(3, [pid 5356] close(22 [pid 5051] close(3) = 0 [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] setpgid(0, 0 [pid 5356] close(23 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5357] <... setpgid resumed>) = 0 [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5048] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5358 attached [pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5356] close(24 [pid 5052] <... close resumed>) = 0 [pid 5048] getdents64(3, [pid 5052] rmdir("./53" [pid 5358] set_robust_list(0x5555566e0760, 24 [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5358] <... set_robust_list resumed>) = 0 [pid 5356] close(25) = -1 EBADF (Bad file descriptor) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 47 [pid 5358] chdir("./45" [pid 5357] <... openat resumed>) = 3 [pid 5052] <... rmdir resumed>) = 0 [pid 5048] close(3 [pid 5358] <... chdir resumed>) = 0 [pid 5356] close(26 [pid 5358] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5358] <... prctl resumed>) = 0 [pid 5356] close(27 [pid 5048] rmdir("./46" [pid 5358] setpgid(0, 0 [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./54", 0777 [pid 5358] <... setpgid resumed>) = 0 [pid 5357] write(3, "1000", 4 [pid 5356] close(28 [pid 5048] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5359 attached [pid 5358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 51 [pid 5356] close(29 [pid 5048] mkdir("./47", 0777 [pid 5359] set_robust_list(0x5555566e0760, 24 [pid 5358] <... openat resumed>) = 3 [pid 5357] <... write resumed>) = 4 [pid 5356] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] <... set_robust_list resumed>) = 0 [pid 5357] close(3 [pid 5356] exit_group(0 [pid 5052] <... mkdir resumed>) = 0 [pid 5359] chdir("./49" [pid 5358] write(3, "1000", 4 [pid 5357] <... close resumed>) = 0 [pid 5356] <... exit_group resumed>) = ? [pid 5048] <... mkdir resumed>) = 0 [pid 5359] <... chdir resumed>) = 0 [pid 5358] <... write resumed>) = 4 [pid 5357] symlink("/dev/binderfs", "./binderfs" [pid 5356] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5358] close(3 [pid 5357] <... symlink resumed>) = 0 [pid 5053] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5359] <... prctl resumed>) = 0 [pid 5358] <... close resumed>) = 0 [pid 5357] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5359] setpgid(0, 0 [pid 5358] symlink("/dev/binderfs", "./binderfs" [pid 5357] <... socket resumed>) = 3 [pid 5053] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... openat resumed>) = 3 [pid 5359] <... setpgid resumed>) = 0 [pid 5357] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] <... openat resumed>) = 3 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5358] <... symlink resumed>) = 0 [pid 5357] <... socket resumed>) = 4 [pid 5053] newfstatat(3, "", [pid 5359] <... openat resumed>) = 3 [pid 5357] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(3 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5357] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] getdents64(3, [pid 5359] write(3, "1000", 4 [pid 5357] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5358] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5359] <... write resumed>) = 4 [pid 5357] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5359] close(3 [pid 5048] close(3 [pid 5358] <... socket resumed>) = 3 [pid 5357] memfd_create("syzkaller", 0 [pid 5053] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5359] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5358] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5358] <... socket resumed>) = 4 [pid 5053] newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5358] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] unlink("./47/binderfs" [pid 5358] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] <... unlink resumed>) = 0 [pid 5358] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5358] memfd_create("syzkaller", 0 [pid 5053] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5359] symlink("/dev/binderfs", "./binderfs" [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5357] <... memfd_create resumed>) = 5 [pid 5053] <... umount2 resumed>) = 0 [pid 5359] <... symlink resumed>) = 0 [pid 5358] <... memfd_create resumed>) = 5 [pid 5357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5360 attached [pid 5359] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5358] <... mmap resumed>) = 0x7f1263f98000 [pid 5357] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 49 [pid 5360] set_robust_list(0x5555566e0760, 24 [pid 5359] <... socket resumed>) = 3 [pid 5357] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] newfstatat(AT_FDCWD, "./47/file0", [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 56 [pid 5360] <... set_robust_list resumed>) = 0 [pid 5358] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5357] mkdir("./file0", 000 [pid 5359] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE./strace-static-x86_64: Process 5361 attached [pid 5360] chdir("./54" [pid 5361] set_robust_list(0x5555566e0760, 24 [pid 5359] <... socket resumed>) = 4 [pid 5358] mkdir("./file0", 000 [pid 5053] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5361] <... set_robust_list resumed>) = 0 [pid 5359] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5358] <... mkdir resumed>) = 0 [pid 5357] <... mkdir resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5360] <... chdir resumed>) = 0 [pid 5361] chdir("./47" [pid 5359] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5357] symlink(NULL, NULL [pid 5360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5361] <... chdir resumed>) = 0 [pid 5359] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5357] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5360] <... prctl resumed>) = 0 [pid 5361] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5359] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5358] symlink(NULL, NULL [pid 5053] <... openat resumed>) = 4 [pid 5357] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5360] setpgid(0, 0 [pid 5361] <... prctl resumed>) = 0 [pid 5359] memfd_create("syzkaller", 0 [pid 5358] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] newfstatat(4, "", [pid 5360] <... setpgid resumed>) = 0 [pid 5361] setpgid(0, 0 [pid 5359] <... memfd_create resumed>) = 5 [pid 5358] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5357] <... mount resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5361] <... setpgid resumed>) = 0 [pid 5359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] getdents64(4, [pid 5361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5359] <... mmap resumed>) = 0x7f1263f98000 [pid 5358] <... mount resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5359] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5359] mkdir("./file0", 000 [pid 5357] open(NULL, O_RDONLY [pid 5360] write(3, "1000", 4 [pid 5361] <... openat resumed>) = 3 [pid 5053] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5360] <... write resumed>) = 4 [pid 5360] close(3 [pid 5053] close(4 [pid 5360] <... close resumed>) = 0 [pid 5361] write(3, "1000", 4 [pid 5359] <... mkdir resumed>) = 0 [pid 5357] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... close resumed>) = 0 [pid 5360] symlink("/dev/binderfs", "./binderfs" [pid 5358] open(NULL, O_RDONLY [pid 5357] close(3 [pid 5360] <... symlink resumed>) = 0 [pid 5053] rmdir("./47/file0" [pid 5357] <... close resumed>) = 0 [pid 5360] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5361] <... write resumed>) = 4 [pid 5358] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... rmdir resumed>) = 0 [pid 5357] close(4 [pid 5359] symlink(NULL, NULL [pid 5358] close(3 [pid 5357] <... close resumed>) = 0 [pid 5360] <... socket resumed>) = 3 [pid 5359] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5358] <... close resumed>) = 0 [pid 5357] close(5 [pid 5361] close(3 [pid 5360] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5358] close(4 [pid 5361] <... close resumed>) = 0 [pid 5360] <... socket resumed>) = 4 [pid 5359] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5358] <... close resumed>) = 0 [pid 5357] <... close resumed>) = 0 [pid 5053] getdents64(3, [pid 5361] symlink("/dev/binderfs", "./binderfs" [pid 5360] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5359] <... mount resumed>) = 0 [pid 5358] close(5 [pid 5357] close(6 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5360] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5361] <... symlink resumed>) = 0 [pid 5358] <... close resumed>) = 0 [pid 5053] close(3 [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5357] close(7 [pid 5361] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5361] <... socket resumed>) = 3 [pid 5359] open(NULL, O_RDONLY [pid 5358] close(6 [pid 5357] close(8 [pid 5053] rmdir("./47" [pid 5360] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5358] close(7 [pid 5360] memfd_create("syzkaller", 0 [pid 5361] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5359] <... open resumed>) = -1 EFAULT (Bad address) [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] close(9 [pid 5360] <... memfd_create resumed>) = 5 [pid 5361] <... socket resumed>) = 4 [pid 5359] close(3 [pid 5358] close(8 [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./48", 0777 [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5361] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5359] <... close resumed>) = 0 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] close(10 [pid 5053] <... mkdir resumed>) = 0 [pid 5360] <... mmap resumed>) = 0x7f1263f98000 [pid 5361] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5358] close(9 [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5357] close(11 [pid 5361] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5361] memfd_create("syzkaller", 0 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] mkdir("./file0", 000 [pid 5361] <... memfd_create resumed>) = 5 [pid 5359] close(4 [pid 5358] close(10 [pid 5357] close(12 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5360] <... mkdir resumed>) = 0 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] <... close resumed>) = 0 [pid 5358] close(11 [pid 5357] close(13 [pid 5359] close(5 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] symlink(NULL, NULL [pid 5359] <... close resumed>) = 0 [pid 5358] close(12 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5360] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5359] close(6 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] close(14 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5360] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5361] <... mmap resumed>) = 0x7f1263f98000 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] close(13 [pid 5053] close(3 [pid 5360] <... mount resumed>) = 0 [pid 5359] close(7 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(8 [pid 5361] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5360] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5360] close(3) = 0 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] mkdir("./file0", 000 [pid 5359] close(9 [pid 5357] close(15 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] close(16 [pid 5360] close(4 [pid 5358] close(14 [pid 5360] <... close resumed>) = 0 [pid 5361] <... mkdir resumed>) = 0 [pid 5359] close(10 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] close(17 [pid 5358] close(15 [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5359] close(11 [pid 5361] symlink(NULL, NULL [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5362 attached [pid 5360] close(5 [pid 5361] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5359] close(12 [pid 5358] close(16 [pid 5357] close(18 [pid 5362] set_robust_list(0x5555566e0760, 24 [pid 5360] <... close resumed>) = 0 [pid 5361] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 50 [pid 5362] <... set_robust_list resumed>) = 0 [pid 5360] close(6 [pid 5358] close(17 [pid 5362] chdir("./48" [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... mount resumed>) = 0 [pid 5359] close(13 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] <... chdir resumed>) = 0 [pid 5360] close(7 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] close(18 [pid 5357] close(19 [pid 5362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(14 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] <... prctl resumed>) = 0 [pid 5360] close(8 [pid 5361] open(NULL, O_RDONLY [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] close(19 [pid 5357] close(20 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... open resumed>) = -1 EFAULT (Bad address) [pid 5359] close(15 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] setpgid(0, 0 [pid 5360] close(9 [pid 5361] close(3 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] close(20 [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] <... setpgid resumed>) = 0 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... close resumed>) = 0 [pid 5359] close(16 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] close(21 [pid 5361] close(4 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5360] close(10 [pid 5361] <... close resumed>) = 0 [pid 5359] close(17 [pid 5358] close(21 [pid 5357] close(22 [pid 5362] <... openat resumed>) = 3 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(5 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] write(3, "1000", 4 [pid 5360] close(11 [pid 5361] <... close resumed>) = 0 [pid 5359] close(18 [pid 5357] close(23 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(6 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] close(12 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] <... write resumed>) = 4 [pid 5359] close(19 [pid 5357] close(24 [pid 5362] close(3 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(7 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] close(22 [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] <... close resumed>) = 0 [pid 5360] close(13 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(20 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] close(25 [pid 5362] symlink("/dev/binderfs", "./binderfs" [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(8 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] <... symlink resumed>) = 0 [pid 5360] close(14 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(21 [pid 5358] close(23 [pid 5357] close(26 [pid 5362] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(9 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] close(15 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(22 [pid 5358] close(24 [pid 5357] close(27 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(10 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] <... socket resumed>) = 3 [pid 5360] close(16 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(23 [pid 5358] close(25 [pid 5357] close(28 [pid 5361] close(11 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(24 [pid 5357] close(29 [pid 5361] close(12 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(25 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] exit_group(0 [pid 5362] <... socket resumed>) = 4 [pid 5360] close(17 [pid 5361] close(13 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] close(26 [pid 5357] <... exit_group resumed>) = ? [pid 5362] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(26 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] close(18 [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] close(27 [pid 5361] close(14 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] close(27 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] close(19 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] close(28 [pid 5362] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(15 [pid 5359] close(28 [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5357] +++ exited with 0 +++ [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5361] close(16 [pid 5359] close(29 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5360] close(20 [pid 5361] close(17 [pid 5359] exit_group(0 [pid 5358] close(29 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5362] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5359] <... exit_group resumed>) = ? [pid 5362] memfd_create("syzkaller", 0 [pid 5360] close(21 [pid 5361] close(18 [pid 5359] +++ exited with 0 +++ [pid 5358] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] close(22 [pid 5361] close(19 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5358] exit_group(0 [pid 5362] <... memfd_create resumed>) = 5 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] <... exit_group resumed>) = ? [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5049] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, [pid 5361] close(20 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5361] close(21 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5361] close(22 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5358] +++ exited with 0 +++ [pid 5049] unlink("./48/binderfs" [pid 5360] close(23 [pid 5361] close(23 [pid 5051] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] <... unlink resumed>) = 0 [pid 5362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(24) = -1 EBADF (Bad file descriptor) [pid 5361] close(25) = -1 EBADF (Bad file descriptor) [pid 5361] close(26 [pid 5362] <... mmap resumed>) = 0x7f1263f98000 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(27 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] mkdir("./file0", 000 [pid 5360] close(24 [pid 5361] close(28 [pid 5051] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] close(29 [pid 5049] <... umount2 resumed>) = 0 [pid 5360] close(25 [pid 5361] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5361] exit_group(0 [pid 5051] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5361] <... exit_group resumed>) = ? [pid 5050] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] close(26 [pid 5051] newfstatat(3, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./48/file0", [pid 5362] <... mkdir resumed>) = 0 [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5360] close(27 [pid 5051] getdents64(3, [pid 5362] symlink(NULL, NULL [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5360] close(28 [pid 5051] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(3, "", [pid 5049] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5362] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] getdents64(3, [pid 5049] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./49/binderfs" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... openat resumed>) = 4 [pid 5361] +++ exited with 0 +++ [pid 5050] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5049] newfstatat(4, "", [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5360] close(29 [pid 5051] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5360] exit_group(0 [pid 5050] unlink("./45/binderfs" [pid 5049] getdents64(4, [pid 5048] <... openat resumed>) = 3 [pid 5048] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5048] getdents64(3, [pid 5362] <... mount resumed>) = 0 [pid 5360] <... exit_group resumed>) = ? [pid 5050] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = 0 [pid 5048] unlink("./47/binderfs" [pid 5051] newfstatat(AT_FDCWD, "./49/file0", [pid 5049] getdents64(4, [pid 5048] <... unlink resumed>) = 0 [pid 5048] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5362] open(NULL, O_RDONLY [pid 5050] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] close(4 [pid 5048] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5362] close(3 [pid 5050] newfstatat(AT_FDCWD, "./45/file0", [pid 5049] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./47/file0", [pid 5051] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] rmdir("./48/file0" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5049] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(4, "", [pid 5362] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(4, [pid 5051] <... openat resumed>) = 4 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] getdents64(4, [pid 5051] newfstatat(4, "", [pid 5050] <... openat resumed>) = 4 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(4, "", [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... close resumed>) = 0 [pid 5362] close(4 [pid 5051] getdents64(4, [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] close(3 [pid 5048] rmdir("./47/file0" [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5049] rmdir("./48" [pid 5048] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] close(3) = 0 [pid 5048] rmdir("./47" [pid 5362] <... close resumed>) = 0 [pid 5051] getdents64(4, [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5362] close(5 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5362] <... close resumed>) = 0 [pid 5360] +++ exited with 0 +++ [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(4, [pid 5049] mkdir("./49", 0777 [pid 5048] mkdir("./48", 0777 [pid 5362] close(6 [pid 5051] close(4 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] <... close resumed>) = 0 [pid 5050] close(4 [pid 5049] <... mkdir resumed>) = 0 [pid 5052] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] rmdir("./49/file0" [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] <... rmdir resumed>) = 0 [pid 5050] rmdir("./45/file0" [pid 5362] close(7 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5049] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5050] <... rmdir resumed>) = 0 [pid 5049] close(3) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] close(8 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(3, [pid 5050] getdents64(3, [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5362] close(9) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5362] close(10 [pid 5052] newfstatat(3, "", [pid 5051] close(3 [pid 5050] close(3 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5050] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... close resumed>) = 0 [pid 5050] rmdir("./45" [pid 5051] rmdir("./49" [pid 5362] close(11 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5051] mkdir("./50", 0777 [pid 5362] close(12) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5362] close(13 [pid 5051] <... mkdir resumed>) = 0 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] mkdir("./46", 0777 [pid 5362] close(14 [pid 5052] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5363 attached [pid 5363] set_robust_list(0x5555566e0760, 24) = 0 [pid 5363] chdir("./49" [pid 5362] close(15 [pid 5050] <... mkdir resumed>) = 0 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 51 [pid 5363] <... chdir resumed>) = 0 [pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5363] setpgid(0, 0) = 0 [pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5362] close(16) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./54/binderfs", [pid 5362] close(17 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5364 attached [pid 5363] <... openat resumed>) = 3 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 50 [pid 5362] close(18 [pid 5364] set_robust_list(0x5555566e0760, 24 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5362] close(19) = -1 EBADF (Bad file descriptor) [pid 5362] close(20) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5362] close(21 [pid 5364] <... set_robust_list resumed>) = 0 [pid 5363] write(3, "1000", 4 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] chdir("./48" [pid 5363] <... write resumed>) = 4 [pid 5362] close(22 [pid 5050] <... openat resumed>) = 3 [pid 5364] <... chdir resumed>) = 0 [pid 5363] close(3 [pid 5364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5363] <... close resumed>) = 0 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./54/binderfs" [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5364] <... prctl resumed>) = 0 [pid 5363] symlink("/dev/binderfs", "./binderfs" [pid 5362] close(23 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5364] setpgid(0, 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5364] <... setpgid resumed>) = 0 [pid 5363] <... symlink resumed>) = 0 [pid 5364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5051] close(3 [pid 5050] close(3 [pid 5363] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5362] close(24 [pid 5052] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5364] <... openat resumed>) = 3 [pid 5363] <... socket resumed>) = 3 [pid 5363] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5364] write(3, "1000", 4 [pid 5363] <... socket resumed>) = 4 [pid 5364] <... write resumed>) = 4 [pid 5364] close(3) = 0 [pid 5364] symlink("/dev/binderfs", "./binderfs" [pid 5363] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5364] <... symlink resumed>) = 0 [pid 5363] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5362] close(25 [pid 5363] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5364] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5363] memfd_create("syzkaller", 0 [pid 5364] <... socket resumed>) = 3 [pid 5364] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5363] <... memfd_create resumed>) = 5 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5362] close(26 [pid 5052] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5364] <... socket resumed>) = 4 [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... mmap resumed>) = 0x7f1263f98000 [pid 5362] close(27) = -1 EBADF (Bad file descriptor) [pid 5362] close(28 [pid 5364] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5363] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] newfstatat(AT_FDCWD, "./54/file0", [pid 5363] mkdir("./file0", 000 [pid 5364] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5363] <... mkdir resumed>) = 0 [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5366 attached [pid 5052] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 48 [pid 5362] close(29 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 52 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5362] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5365 attached [pid 5364] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5363] symlink(NULL, NULL [pid 5362] exit_group(0 [pid 5052] <... openat resumed>) = 4 [pid 5366] set_robust_list(0x5555566e0760, 24 [pid 5365] set_robust_list(0x5555566e0760, 24 [pid 5364] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5366] <... set_robust_list resumed>) = 0 [pid 5365] <... set_robust_list resumed>) = 0 [pid 5364] memfd_create("syzkaller", 0 [pid 5363] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5362] <... exit_group resumed>) = ? [pid 5052] newfstatat(4, "", [pid 5366] chdir("./46" [pid 5365] chdir("./50" [pid 5364] <... memfd_create resumed>) = 5 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5366] <... chdir resumed>) = 0 [pid 5365] <... chdir resumed>) = 0 [pid 5364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5363] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] getdents64(4, [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5364] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5365] <... prctl resumed>) = 0 [pid 5364] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5366] setpgid(0, 0 [pid 5365] setpgid(0, 0 [pid 5364] mkdir("./file0", 000 [pid 5363] <... mount resumed>) = 0 [pid 5052] getdents64(4, [pid 5366] <... setpgid resumed>) = 0 [pid 5366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5365] <... setpgid resumed>) = 0 [pid 5364] <... mkdir resumed>) = 0 [pid 5363] open(NULL, O_RDONLY [pid 5362] +++ exited with 0 +++ [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5364] symlink(NULL, NULL [pid 5363] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] close(4 [pid 5366] <... openat resumed>) = 3 [pid 5365] <... openat resumed>) = 3 [pid 5366] write(3, "1000", 4 [pid 5052] <... close resumed>) = 0 [pid 5364] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5363] close(3 [pid 5052] rmdir("./54/file0" [pid 5366] <... write resumed>) = 4 [pid 5053] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] write(3, "1000", 4 [pid 5364] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5363] <... close resumed>) = 0 [pid 5366] close(3 [pid 5365] <... write resumed>) = 4 [pid 5364] <... mount resumed>) = 0 [pid 5363] close(4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5366] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(3, [pid 5366] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5365] close(3 [pid 5364] open(NULL, O_RDONLY [pid 5363] <... close resumed>) = 0 [pid 5366] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5365] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5366] <... socket resumed>) = 3 [pid 5365] symlink("/dev/binderfs", "./binderfs" [pid 5053] newfstatat(3, "", [pid 5052] close(3 [pid 5366] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5365] <... symlink resumed>) = 0 [pid 5363] close(5 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... close resumed>) = 0 [pid 5052] rmdir("./54" [pid 5053] getdents64(3, [pid 5365] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5364] <... open resumed>) = -1 EFAULT (Bad address) [pid 5363] <... close resumed>) = 0 [pid 5365] <... socket resumed>) = 3 [pid 5364] close(3 [pid 5363] close(6 [pid 5052] <... rmdir resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5366] <... socket resumed>) = 4 [pid 5053] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5366] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] mkdir("./55", 0777 [pid 5366] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5365] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5364] <... close resumed>) = 0 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... socket resumed>) = 4 [pid 5364] close(4 [pid 5363] close(7 [pid 5366] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5365] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5364] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... mkdir resumed>) = 0 [pid 5366] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5365] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5364] close(5 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5365] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5364] <... close resumed>) = 0 [pid 5363] close(8 [pid 5366] memfd_create("syzkaller", 0 [pid 5365] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5364] close(6 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5366] <... memfd_create resumed>) = 5 [pid 5365] memfd_create("syzkaller", 0 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(9 [pid 5053] unlink("./48/binderfs" [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5365] <... memfd_create resumed>) = 5 [pid 5364] close(7 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5366] <... mmap resumed>) = 0x7f1263f98000 [pid 5365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(10 [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5366] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5365] <... mmap resumed>) = 0x7f1263f98000 [pid 5364] close(8 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5366] mkdir("./file0", 000 [pid 5365] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(11 [pid 5365] mkdir("./file0", 000 [pid 5364] close(9 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5366] <... mkdir resumed>) = 0 [pid 5365] <... mkdir resumed>) = 0 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(12 [pid 5364] close(10 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(13 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5366] symlink(NULL, NULL [pid 5365] symlink(NULL, NULL [pid 5364] close(11 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5366] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5365] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(14 [pid 5366] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5365] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5364] close(12 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(3 [pid 5366] <... mount resumed>) = 0 [pid 5365] <... mount resumed>) = 0 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(15 [pid 5366] open(NULL, O_RDONLY [pid 5364] close(13 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5366] <... open resumed>) = -1 EFAULT (Bad address) [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(16 [pid 5053] newfstatat(AT_FDCWD, "./48/file0", [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5366] close(3 [pid 5365] open(NULL, O_RDONLY [pid 5364] close(14 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5366] <... close resumed>) = 0 [pid 5365] <... open resumed>) = -1 EFAULT (Bad address) [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(17 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5366] close(4 [pid 5364] close(15 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5366] <... close resumed>) = 0 [pid 5365] close(3 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(18 [pid 5366] close(5 [pid 5365] <... close resumed>) = 0 [pid 5364] close(16 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5366] <... close resumed>) = 0 [pid 5365] close(4 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(19 [pid 5053] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5366] close(6 [pid 5364] close(17 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = 0 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(20 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5364] close(18 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(5 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(21 [pid 5364] close(19 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = 0 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(22 [pid 5053] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5366] close(7 [pid 5365] close(6 [pid 5364] close(20 [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] close(23 [pid 5053] <... openat resumed>) = 4 [pid 5366] close(8 [pid 5365] close(7 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", ./strace-static-x86_64: Process 5367 attached [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] close(21 [pid 5363] close(24 [pid 5366] close(9 [pid 5365] close(8 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] set_robust_list(0x5555566e0760, 24 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] close(22 [pid 5363] close(25 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 57 [pid 5367] <... set_robust_list resumed>) = 0 [pid 5366] close(10 [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] chdir("./55" [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(9 [pid 5364] close(23 [pid 5363] close(26 [pid 5053] getdents64(4, [pid 5367] <... chdir resumed>) = 0 [pid 5366] close(11 [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(10 [pid 5364] close(24 [pid 5363] close(27 [pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] <... prctl resumed>) = 0 [pid 5366] close(12 [pid 5365] close(11 [pid 5364] close(25 [pid 5363] close(28 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5367] setpgid(0, 0 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5367] <... setpgid resumed>) = 0 [pid 5366] close(13 [pid 5365] close(12 [pid 5364] close(26 [pid 5363] close(29 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5366] close(14 [pid 5365] close(13 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] exit_group(0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5367] <... openat resumed>) = 3 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] close(27 [pid 5367] write(3, "1000", 4 [pid 5366] close(15 [pid 5365] close(14 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] <... exit_group resumed>) = ? [pid 5053] close(4 [pid 5367] <... write resumed>) = 4 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] close(28 [pid 5367] close(3 [pid 5366] close(16 [pid 5053] <... close resumed>) = 0 [pid 5367] <... close resumed>) = 0 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./48/file0" [pid 5367] symlink("/dev/binderfs", "./binderfs" [pid 5366] close(17) = -1 EBADF (Bad file descriptor) [pid 5366] close(18) = -1 EBADF (Bad file descriptor) [pid 5365] close(15 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5366] close(19 [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] close(29 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(16 [pid 5364] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] <... symlink resumed>) = 0 [pid 5366] close(20 [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5364] exit_group(0 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(17 [pid 5364] <... exit_group resumed>) = ? [pid 5053] <... rmdir resumed>) = 0 [pid 5367] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5366] close(21 [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5363] +++ exited with 0 +++ [pid 5367] <... socket resumed>) = 3 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(18 [pid 5053] getdents64(3, [pid 5367] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5366] close(22 [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5364] +++ exited with 0 +++ [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5367] <... socket resumed>) = 4 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(19 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5366] close(23 [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5367] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(20) = -1 EBADF (Bad file descriptor) [pid 5365] close(21) = -1 EBADF (Bad file descriptor) [pid 5365] close(22) = -1 EBADF (Bad file descriptor) [pid 5365] close(23) = -1 EBADF (Bad file descriptor) [pid 5365] close(24) = -1 EBADF (Bad file descriptor) [pid 5365] close(25) = -1 EBADF (Bad file descriptor) [pid 5365] close(26) = -1 EBADF (Bad file descriptor) [pid 5365] close(27 [pid 5367] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5366] close(24 [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(28) = -1 EBADF (Bad file descriptor) [pid 5367] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5365] close(29 [pid 5053] <... close resumed>) = 0 [pid 5048] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5366] close(25 [pid 5365] exit_group(0 [pid 5053] rmdir("./48" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5365] <... exit_group resumed>) = ? [pid 5367] memfd_create("syzkaller", 0 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5049] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5366] close(26 [pid 5053] mkdir("./49", 0777 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... openat resumed>) = 3 [pid 5367] <... memfd_create resumed>) = 5 [pid 5366] close(27 [pid 5365] +++ exited with 0 +++ [pid 5053] <... mkdir resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] newfstatat(3, "", [pid 5367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] newfstatat(3, "", [pid 5366] close(28 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5366] close(29 [pid 5053] <... openat resumed>) = 3 [pid 5051] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(3, [pid 5366] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5366] exit_group(0 [pid 5367] <... mmap resumed>) = 0x7f1263f98000 [pid 5366] <... exit_group resumed>) = ? [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] close(3) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5367] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5367] mkdir("./file0", 000) = 0 [pid 5366] +++ exited with 0 +++ [pid 5051] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5367] symlink(NULL, NULL [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5367] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5367] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] newfstatat(3, "", [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5048] unlink("./48/binderfs" [pid 5367] <... mount resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5051] getdents64(3, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] unlink("./49/binderfs" [pid 5048] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5367] open(NULL, O_RDONLY [pid 5049] <... unlink resumed>) = 0 [pid 5367] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5367] close(3) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 51 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = 0 [pid 5049] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5368 attached [pid 5367] close(4 [pid 5051] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(3, "", [pid 5048] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5368] set_robust_list(0x5555566e0760, 24) = 0 [pid 5367] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./50/binderfs", [pid 5050] getdents64(3, [pid 5049] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./48/file0", [pid 5368] chdir("./49" [pid 5367] close(5 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5368] <... chdir resumed>) = 0 [pid 5367] <... close resumed>) = 0 [pid 5051] unlink("./50/binderfs" [pid 5050] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./49/file0", [pid 5048] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5367] close(6 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5368] <... prctl resumed>) = 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... unlink resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5368] setpgid(0, 0 [pid 5367] close(7 [pid 5051] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... openat resumed>) = 4 [pid 5368] <... setpgid resumed>) = 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5367] close(8 [pid 5051] <... umount2 resumed>) = 0 [pid 5050] unlink("./46/binderfs" [pid 5049] <... openat resumed>) = 4 [pid 5048] newfstatat(4, "", [pid 5051] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(4, "", [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5368] <... openat resumed>) = 3 [pid 5367] close(9) = -1 EBADF (Bad file descriptor) [pid 5367] close(10 [pid 5368] write(3, "1000", 4 [pid 5049] getdents64(4, [pid 5051] newfstatat(AT_FDCWD, "./50/file0", [pid 5048] getdents64(4, [pid 5050] <... unlink resumed>) = 0 [pid 5368] <... write resumed>) = 4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(4, [pid 5368] close(3 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = 0 [pid 5049] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5368] <... close resumed>) = 0 [pid 5368] symlink("/dev/binderfs", "./binderfs" [pid 5367] close(11 [pid 5050] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] close(4 [pid 5368] <... symlink resumed>) = 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5368] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5367] close(12 [pid 5050] newfstatat(AT_FDCWD, "./46/file0", [pid 5048] <... close resumed>) = 0 [pid 5368] <... socket resumed>) = 3 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(4, "", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] close(4 [pid 5048] rmdir("./48/file0" [pid 5368] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5367] close(13 [pid 5050] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5368] <... socket resumed>) = 4 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5367] close(14 [pid 5048] <... rmdir resumed>) = 0 [pid 5368] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5368] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5367] close(15 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5368] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5049] <... close resumed>) = 0 [pid 5051] getdents64(4, [pid 5368] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5367] close(16 [pid 5048] getdents64(3, [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] close(17 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] rmdir("./49/file0" [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5368] memfd_create("syzkaller", 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(4, "", [pid 5368] <... memfd_create resumed>) = 5 [pid 5367] close(18 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5051] getdents64(4, [pid 5048] close(3 [pid 5368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5368] <... mmap resumed>) = 0x7f1263f98000 [pid 5367] close(19 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5368] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5367] close(20 [pid 5050] getdents64(4, [pid 5368] mkdir("./file0", 000 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5368] <... mkdir resumed>) = 0 [pid 5367] close(21 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(3, [pid 5048] <... close resumed>) = 0 [pid 5051] close(4 [pid 5048] rmdir("./48" [pid 5051] <... close resumed>) = 0 [pid 5050] close(4 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5367] close(22) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./46/file0" [pid 5367] close(23 [pid 5051] rmdir("./50/file0" [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5368] symlink(NULL, NULL [pid 5367] close(24 [pid 5368] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] close(25) = -1 EBADF (Bad file descriptor) [pid 5368] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5367] close(26 [pid 5051] <... rmdir resumed>) = 0 [pid 5368] <... mount resumed>) = 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5049] close(3 [pid 5048] mkdir("./49", 0777 [pid 5367] close(27 [pid 5049] <... close resumed>) = 0 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5367] close(28 [pid 5050] close(3 [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5367] close(29 [pid 5050] rmdir("./46" [pid 5368] open(NULL, O_RDONLY [pid 5367] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5367] exit_group(0 [pid 5368] <... open resumed>) = -1 EFAULT (Bad address) [pid 5368] close(3 [pid 5367] <... exit_group resumed>) = ? [pid 5050] <... rmdir resumed>) = 0 [pid 5049] rmdir("./49" [pid 5368] <... close resumed>) = 0 [pid 5367] +++ exited with 0 +++ [pid 5051] getdents64(3, [pid 5048] <... mkdir resumed>) = 0 [pid 5368] close(4) = 0 [pid 5050] mkdir("./47", 0777 [pid 5049] <... rmdir resumed>) = 0 [pid 5368] close(5 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] close(3 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5368] <... close resumed>) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] mkdir("./50", 0777 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5368] close(6) = -1 EBADF (Bad file descriptor) [pid 5368] close(7) = -1 EBADF (Bad file descriptor) [pid 5368] close(8) = -1 EBADF (Bad file descriptor) [pid 5368] close(9) = -1 EBADF (Bad file descriptor) [pid 5368] close(10) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5368] close(11 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 3 [pid 5368] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5368] close(12) = -1 EBADF (Bad file descriptor) [pid 5368] close(13) = -1 EBADF (Bad file descriptor) [pid 5368] close(14 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5368] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./50" [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... mkdir resumed>) = 0 [pid 5368] close(15) = -1 EBADF (Bad file descriptor) [pid 5368] close(16) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5368] close(17) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5368] close(18 [pid 5052] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5368] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5368] close(19) = -1 EBADF (Bad file descriptor) [pid 5368] close(20) = -1 EBADF (Bad file descriptor) [pid 5368] close(21) = -1 EBADF (Bad file descriptor) [pid 5368] close(22) = -1 EBADF (Bad file descriptor) [pid 5368] close(23) = -1 EBADF (Bad file descriptor) [pid 5368] close(24) = -1 EBADF (Bad file descriptor) [pid 5368] close(25) = -1 EBADF (Bad file descriptor) [pid 5368] close(26) = -1 EBADF (Bad file descriptor) [pid 5368] close(27) = -1 EBADF (Bad file descriptor) [pid 5368] close(28) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5369 attached [pid 5368] close(29 [pid 5369] set_robust_list(0x5555566e0760, 24 [pid 5368] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 49 [pid 5369] <... set_robust_list resumed>) = 0 [pid 5368] exit_group(0 [pid 5369] chdir("./47" [pid 5368] <... exit_group resumed>) = ? [pid 5052] <... openat resumed>) = 3 [pid 5368] +++ exited with 0 +++ [pid 5051] mkdir("./51", 0777 [pid 5049] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5369] <... chdir resumed>) = 0 [pid 5369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5369] <... prctl resumed>) = 0 [pid 5369] setpgid(0, 0 [pid 5048] <... close resumed>) = 0 [pid 5369] <... setpgid resumed>) = 0 [pid 5053] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... mkdir resumed>) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] newfstatat(3, "", [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5369] <... openat resumed>) = 3 [pid 5053] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] close(3 [pid 5369] write(3, "1000", 4 [pid 5053] getdents64(3, [pid 5369] <... write resumed>) = 4 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5369] close(3 [pid 5053] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5369] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5369] symlink("/dev/binderfs", "./binderfs" [pid 5053] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5369] <... symlink resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(3, [pid 5049] <... close resumed>) = 0 [pid 5053] unlink("./49/binderfs" [pid 5369] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5369] <... socket resumed>) = 3 [pid 5052] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5370 attached [pid 5369] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5370] set_robust_list(0x5555566e0760, 24 [pid 5369] <... socket resumed>) = 4 [pid 5053] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5370] <... set_robust_list resumed>) = 0 [pid 5370] chdir("./49" [pid 5369] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 51 [pid 5370] <... chdir resumed>) = 0 [pid 5369] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] newfstatat(AT_FDCWD, "./55/binderfs", [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5369] <... bpf resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5371 attached [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] unlink("./55/binderfs" [pid 5051] close(3 [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5370] <... prctl resumed>) = 0 [pid 5369] memfd_create("syzkaller", 0 [pid 5053] newfstatat(AT_FDCWD, "./49/file0", [pid 5052] <... unlink resumed>) = 0 [pid 5370] setpgid(0, 0 [pid 5051] <... close resumed>) = 0 [pid 5370] <... setpgid resumed>) = 0 [pid 5371] set_robust_list(0x5555566e0760, 24 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5370] <... openat resumed>) = 3 [pid 5369] <... memfd_create resumed>) = 5 [pid 5053] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5370] write(3, "1000", 4 [pid 5369] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5370] <... write resumed>) = 4 [pid 5053] <... openat resumed>) = 4 [pid 5370] close(3 [pid 5369] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5370] <... close resumed>) = 0 [pid 5369] mkdir("./file0", 000 [pid 5370] symlink("/dev/binderfs", "./binderfs" [pid 5053] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5371] <... set_robust_list resumed>) = 0 [pid 5370] <... symlink resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 52 [pid 5370] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] getdents64(4, [pid 5371] chdir("./50" [pid 5370] <... socket resumed>) = 3 [pid 5369] <... mkdir resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(4, [pid 5370] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5369] symlink(NULL, NULL [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5370] <... socket resumed>) = 4 [pid 5369] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] close(4 [pid 5371] <... chdir resumed>) = 0 [pid 5371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... close resumed>) = 0 [pid 5370] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5369] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5371] <... prctl resumed>) = 0 [pid 5369] <... mount resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] setpgid(0, 0 [pid 5052] newfstatat(AT_FDCWD, "./55/file0", [pid 5371] <... setpgid resumed>) = 0 [pid 5370] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] rmdir("./49/file0"./strace-static-x86_64: Process 5372 attached [pid 5371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5370] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5369] open(NULL, O_RDONLY [pid 5053] <... rmdir resumed>) = 0 [pid 5372] set_robust_list(0x5555566e0760, 24 [pid 5370] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5369] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 53 [pid 5370] memfd_create("syzkaller", 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5372] <... set_robust_list resumed>) = 0 [pid 5371] <... openat resumed>) = 3 [pid 5370] <... memfd_create resumed>) = 5 [pid 5369] close(3 [pid 5052] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] chdir("./51" [pid 5370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5369] <... close resumed>) = 0 [pid 5053] getdents64(3, [pid 5370] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] write(3, "1000", 4 [pid 5052] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5371] <... write resumed>) = 4 [pid 5372] <... chdir resumed>) = 0 [pid 5371] close(3 [pid 5370] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5369] close(4 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5371] <... close resumed>) = 0 [pid 5370] mkdir("./file0", 000 [pid 5369] <... close resumed>) = 0 [pid 5053] close(3 [pid 5372] <... prctl resumed>) = 0 [pid 5370] <... mkdir resumed>) = 0 [pid 5369] close(5 [pid 5372] setpgid(0, 0 [pid 5371] symlink("/dev/binderfs", "./binderfs" [pid 5369] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5372] <... setpgid resumed>) = 0 [pid 5369] close(6 [pid 5053] rmdir("./49" [pid 5372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5371] <... symlink resumed>) = 0 [pid 5370] symlink(NULL, NULL [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, [pid 5369] close(7 [pid 5370] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] close(8 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5372] <... openat resumed>) = 3 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5370] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5369] close(9 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] getdents64(4, [pid 5370] <... mount resumed>) = 0 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] write(3, "1000", 4 [pid 5371] <... socket resumed>) = 3 [pid 5369] close(10 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5372] <... write resumed>) = 4 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] close(3 [pid 5369] close(11 [pid 5372] <... close resumed>) = 0 [pid 5371] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5370] open(NULL, O_RDONLY [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5372] symlink("/dev/binderfs", "./binderfs" [pid 5370] <... open resumed>) = -1 EFAULT (Bad address) [pid 5369] close(12 [pid 5053] mkdir("./50", 0777 [pid 5372] <... symlink resumed>) = 0 [pid 5371] <... socket resumed>) = 4 [pid 5370] close(3 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5370] <... close resumed>) = 0 [pid 5369] close(13 [pid 5372] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] <... socket resumed>) = 3 [pid 5369] close(14 [pid 5372] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5370] close(4 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] <... socket resumed>) = 4 [pid 5370] <... close resumed>) = 0 [pid 5369] close(15 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5370] close(5 [pid 5372] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5371] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5370] <... close resumed>) = 0 [pid 5369] close(16 [pid 5053] <... openat resumed>) = 3 [pid 5052] rmdir("./55/file0" [pid 5371] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5370] close(6) = -1 EBADF (Bad file descriptor) [pid 5370] close(7) = -1 EBADF (Bad file descriptor) [pid 5370] close(8) = -1 EBADF (Bad file descriptor) [pid 5370] close(9) = -1 EBADF (Bad file descriptor) [pid 5370] close(10 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5371] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] close(17 [pid 5370] close(11 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] close(18 [pid 5371] memfd_create("syzkaller", 0 [pid 5370] close(12 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] close(19 [pid 5372] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5370] close(13 [pid 5372] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5372] memfd_create("syzkaller", 0 [pid 5370] close(14 [pid 5369] close(20 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5371] <... memfd_create resumed>) = 5 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5370] close(15 [pid 5372] <... memfd_create resumed>) = 5 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] close(21 [pid 5053] <... close resumed>) = 0 [pid 5370] close(16 [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] close(22 [pid 5371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5370] close(17 [pid 5052] getdents64(3, [pid 5372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... mmap resumed>) = 0x7f1263f98000 [pid 5372] <... mmap resumed>) = 0x7f1263f98000 [pid 5370] close(18 [pid 5369] close(23 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5370] close(19 [pid 5369] close(24 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5372] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5371] mkdir("./file0", 000 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] mkdir("./file0", 000 [pid 5370] close(20 [pid 5369] close(25./strace-static-x86_64: Process 5373 attached [pid 5372] <... mkdir resumed>) = 0 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5370] close(21 [pid 5369] close(26 [pid 5373] set_robust_list(0x5555566e0760, 24 [pid 5371] <... mkdir resumed>) = 0 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5372] symlink(NULL, NULL [pid 5370] close(22 [pid 5369] close(27 [pid 5373] <... set_robust_list resumed>) = 0 [pid 5372] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 52 [pid 5373] chdir("./50" [pid 5372] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5370] close(23 [pid 5369] close(28 [pid 5373] <... chdir resumed>) = 0 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5370] close(24 [pid 5369] close(29 [pid 5373] <... prctl resumed>) = 0 [pid 5372] <... mount resumed>) = 0 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5373] setpgid(0, 0 [pid 5371] symlink(NULL, NULL [pid 5370] close(25 [pid 5369] exit_group(0 [pid 5052] rmdir("./55" [pid 5373] <... setpgid resumed>) = 0 [pid 5372] open(NULL, O_RDONLY [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5369] <... exit_group resumed>) = ? [pid 5373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5372] <... open resumed>) = -1 EFAULT (Bad address) [pid 5371] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5370] close(26 [pid 5369] +++ exited with 0 +++ [pid 5052] <... rmdir resumed>) = 0 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5371] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5372] close(3 [pid 5370] close(27 [pid 5373] <... openat resumed>) = 3 [pid 5372] <... close resumed>) = 0 [pid 5371] <... mount resumed>) = 0 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] open(NULL, O_RDONLY [pid 5370] close(28 [pid 5050] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] write(3, "1000", 4 [pid 5372] close(4 [pid 5371] <... open resumed>) = -1 EFAULT (Bad address) [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./56", 0777 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5373] <... write resumed>) = 4 [pid 5372] <... close resumed>) = 0 [pid 5371] close(3 [pid 5370] close(29 [pid 5050] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5373] close(3 [pid 5370] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5373] <... close resumed>) = 0 [pid 5372] close(5 [pid 5371] <... close resumed>) = 0 [pid 5370] exit_group(0 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] newfstatat(3, "", [pid 5373] symlink("/dev/binderfs", "./binderfs" [pid 5372] <... close resumed>) = 0 [pid 5371] close(4 [pid 5370] <... exit_group resumed>) = ? [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5373] <... symlink resumed>) = 0 [pid 5372] close(6 [pid 5371] <... close resumed>) = 0 [pid 5370] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] getdents64(3, [pid 5371] close(5 [pid 5373] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5373] <... socket resumed>) = 3 [pid 5372] close(7 [pid 5371] close(6 [pid 5050] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... restart_syscall resumed>) = 0 [pid 5373] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5372] close(8 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5373] <... socket resumed>) = 4 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(7 [pid 5052] <... openat resumed>) = 3 [pid 5050] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5373] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5372] close(9 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5373] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(8 [pid 5372] close(10 [pid 5373] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] unlink("./47/binderfs" [pid 5048] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5372] close(11 [pid 5371] close(9 [pid 5050] <... unlink resumed>) = 0 [pid 5373] memfd_create("syzkaller", 0 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] close(10) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] close(3 [pid 5372] close(12) = -1 EBADF (Bad file descriptor) [pid 5371] close(11 [pid 5048] <... openat resumed>) = 3 [pid 5373] <... memfd_create resumed>) = 5 [pid 5372] close(13 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5048] newfstatat(3, "", [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(12 [pid 5373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5372] close(14 [pid 5050] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] <... mmap resumed>) = 0x7f1263f98000 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5373] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5372] close(15 [pid 5371] close(13 [pid 5048] getdents64(3, [pid 5373] mkdir("./file0", 000 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5373] <... mkdir resumed>) = 0 [pid 5372] close(16 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5371] close(14 [pid 5048] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(15 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] close(17 [pid 5371] close(16 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./47/file0", [pid 5372] close(18 [pid 5371] close(17 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5373] symlink(NULL, NULL [pid 5372] close(19 [pid 5371] close(18 [pid 5050] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5373] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5373] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5372] close(20 [pid 5371] close(19 [pid 5050] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5373] <... mount resumed>) = 0 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] close(21 [pid 5050] <... openat resumed>) = 4 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] close(22 [pid 5050] newfstatat(4, "", [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5372] close(23 [pid 5373] open(NULL, O_RDONLY [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5373] <... open resumed>) = -1 EFAULT (Bad address) [pid 5372] close(24 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] unlink("./49/binderfs"./strace-static-x86_64: Process 5374 attached [pid 5373] close(3 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(20 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5374] set_robust_list(0x5555566e0760, 24 [pid 5373] <... close resumed>) = 0 [pid 5372] close(25) = -1 EBADF (Bad file descriptor) [pid 5374] <... set_robust_list resumed>) = 0 [pid 5372] close(26 [pid 5050] getdents64(4, [pid 5374] chdir("./56" [pid 5373] close(4 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 58 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5371] close(21 [pid 5374] <... chdir resumed>) = 0 [pid 5373] <... close resumed>) = 0 [pid 5372] close(27 [pid 5050] close(4 [pid 5374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5373] close(5 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5374] <... prctl resumed>) = 0 [pid 5373] <... close resumed>) = 0 [pid 5372] close(28 [pid 5050] rmdir("./47/file0" [pid 5374] setpgid(0, 0 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5371] close(22 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5372] close(29 [pid 5371] close(23) = -1 EBADF (Bad file descriptor) [pid 5371] close(24 [pid 5048] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5374] <... setpgid resumed>) = 0 [pid 5373] close(6 [pid 5372] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] exit_group(0 [pid 5050] getdents64(3, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5373] close(7 [pid 5372] <... exit_group resumed>) = ? [pid 5374] <... openat resumed>) = 3 [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5372] +++ exited with 0 +++ [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] newfstatat(AT_FDCWD, "./49/file0", [pid 5373] close(8 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5373] close(9) = -1 EBADF (Bad file descriptor) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5373] close(10 [pid 5050] close(3 [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5374] write(3, "1000", 4 [pid 5373] close(11 [pid 5050] rmdir("./47" [pid 5374] <... write resumed>) = 4 [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(25 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5374] close(3 [pid 5373] close(12 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(26 [pid 5374] <... close resumed>) = 0 [pid 5373] close(13 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5374] symlink("/dev/binderfs", "./binderfs" [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(27 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] mkdir("./48", 0777 [pid 5048] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5374] <... symlink resumed>) = 0 [pid 5373] close(14 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5374] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(28 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... mkdir resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5374] <... socket resumed>) = 3 [pid 5373] close(15 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(3, "", [pid 5374] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5371] close(29 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] newfstatat(4, "", [pid 5373] close(16 [pid 5371] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5374] <... socket resumed>) = 4 [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5371] exit_group(0) = ? [pid 5048] getdents64(4, [pid 5373] close(17) = -1 EBADF (Bad file descriptor) [pid 5373] close(18) = -1 EBADF (Bad file descriptor) [pid 5373] close(19) = -1 EBADF (Bad file descriptor) [pid 5373] close(20) = -1 EBADF (Bad file descriptor) [pid 5374] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5373] close(21 [pid 5374] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5374] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5373] close(22 [pid 5051] getdents64(3, [pid 5374] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5374] memfd_create("syzkaller", 0 [pid 5373] close(23 [pid 5051] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] +++ exited with 0 +++ [pid 5050] close(3 [pid 5373] close(24 [pid 5051] newfstatat(AT_FDCWD, "./51/binderfs", [pid 5050] <... close resumed>) = 0 [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5373] close(25 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] getdents64(4, [pid 5049] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] close(4 [pid 5374] <... memfd_create resumed>) = 5 [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./51/binderfs" [pid 5049] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... close resumed>) = 0 [pid 5048] rmdir("./49/file0" [pid 5049] <... openat resumed>) = 3 [pid 5051] <... unlink resumed>) = 0 [pid 5373] close(26 [pid 5048] <... rmdir resumed>) = 0 [pid 5049] newfstatat(3, "", ./strace-static-x86_64: Process 5375 attached [pid 5048] getdents64(3, [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5373] close(27 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5048] close(3 [pid 5375] set_robust_list(0x5555566e0760, 24 [pid 5051] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] close(28 [pid 5048] <... close resumed>) = 0 [pid 5373] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5375] <... set_robust_list resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 50 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] rmdir("./49" [pid 5373] close(29) = -1 EBADF (Bad file descriptor) [pid 5373] exit_group(0 [pid 5374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5048] <... rmdir resumed>) = 0 [pid 5048] mkdir("./50", 0777 [pid 5049] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] <... exit_group resumed>) = ? [pid 5375] chdir("./48" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5375] <... chdir resumed>) = 0 [pid 5374] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5373] +++ exited with 0 +++ [pid 5049] newfstatat(AT_FDCWD, "./50/binderfs", [pid 5048] <... mkdir resumed>) = 0 [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5374] mkdir("./file0", 000 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5375] <... prctl resumed>) = 0 [pid 5374] <... mkdir resumed>) = 0 [pid 5374] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5053] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5375] setpgid(0, 0 [pid 5374] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5375] <... setpgid resumed>) = 0 [pid 5049] unlink("./50/binderfs" [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5375] <... openat resumed>) = 3 [pid 5374] <... mount resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5051] newfstatat(AT_FDCWD, "./51/file0", [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5049] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5375] write(3, "1000", 4 [pid 5053] newfstatat(3, "", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5374] open(NULL, O_RDONLY [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = 0 [pid 5374] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5374] close(3 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5374] <... close resumed>) = 0 [pid 5053] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 4 [pid 5375] <... write resumed>) = 4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(4, "", [pid 5049] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5375] close(3 [pid 5053] newfstatat(AT_FDCWD, "./50/binderfs", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5375] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(4, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5375] symlink("/dev/binderfs", "./binderfs" [pid 5053] unlink("./50/binderfs" [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5375] <... symlink resumed>) = 0 [pid 5374] close(4 [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5374] <... close resumed>) = 0 [pid 5053] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./50/file0", [pid 5374] close(5 [pid 5051] getdents64(4, [pid 5048] close(3 [pid 5375] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5374] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5374] close(6 [pid 5053] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(4 [pid 5375] <... socket resumed>) = 3 [pid 5048] <... close resumed>) = 0 [pid 5049] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5375] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5374] close(7 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5374] close(8) = -1 EBADF (Bad file descriptor) [pid 5374] close(9) = -1 EBADF (Bad file descriptor) [pid 5374] close(10) = -1 EBADF (Bad file descriptor) [pid 5374] close(11) = -1 EBADF (Bad file descriptor) [pid 5374] close(12) = -1 EBADF (Bad file descriptor) [pid 5374] close(13 [pid 5053] newfstatat(AT_FDCWD, "./50/file0", [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5374] close(14) = -1 EBADF (Bad file descriptor) [pid 5374] close(15 [pid 5049] <... openat resumed>) = 4 [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5374] close(16) = -1 EBADF (Bad file descriptor) [pid 5374] close(17) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5374] close(18) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5374] close(19) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5374] close(20 [pid 5053] <... openat resumed>) = 4 [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5051] rmdir("./51/file0") = 0 [pid 5375] <... socket resumed>) = 4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, [pid 5049] newfstatat(4, "", [pid 5374] close(21 [pid 5053] getdents64(4, [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] close(3 [pid 5049] getdents64(4, [pid 5375] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5374] close(22 [pid 5053] getdents64(4, [pid 5051] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5375] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] getdents64(4, [pid 5375] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] rmdir("./51" [pid 5375] memfd_create("syzkaller", 0 [pid 5374] close(23 [pid 5053] close(4 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] close(4 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 52 ./strace-static-x86_64: Process 5376 attached [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5051] mkdir("./52", 0777 [pid 5049] <... close resumed>) = 0 [pid 5049] rmdir("./50/file0" [pid 5376] set_robust_list(0x5555566e0760, 24 [pid 5374] close(24 [pid 5053] rmdir("./50/file0" [pid 5051] <... mkdir resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5376] <... set_robust_list resumed>) = 0 [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5376] chdir("./50" [pid 5375] <... memfd_create resumed>) = 5 [pid 5374] close(25 [pid 5053] getdents64(3, [pid 5051] <... openat resumed>) = 3 [pid 5049] getdents64(3, [pid 5375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5374] close(26 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5374] close(27 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5375] <... mmap resumed>) = 0x7f1263f98000 [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5051] close(3 [pid 5049] close(3 [pid 5374] close(28 [pid 5053] rmdir("./50" [pid 5051] <... close resumed>) = 0 [pid 5376] <... chdir resumed>) = 0 [pid 5375] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... close resumed>) = 0 [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5375] mkdir("./file0", 000 [pid 5374] close(29 [pid 5053] mkdir("./51", 0777 [pid 5376] <... prctl resumed>) = 0 [pid 5374] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5376] setpgid(0, 0 [pid 5375] <... mkdir resumed>) = 0 [pid 5374] exit_group(0 [pid 5049] rmdir("./50" [pid 5376] <... setpgid resumed>) = 0 [pid 5375] symlink(NULL, NULL [pid 5374] <... exit_group resumed>) = ? [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5377 attached [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5375] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5374] +++ exited with 0 +++ [pid 5053] <... openat resumed>) = 3 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 54 [pid 5049] <... rmdir resumed>) = 0 [pid 5377] set_robust_list(0x5555566e0760, 24 [pid 5376] <... openat resumed>) = 3 [pid 5375] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5376] write(3, "1000", 4 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5377] <... set_robust_list resumed>) = 0 [pid 5376] <... write resumed>) = 4 [pid 5375] <... mount resumed>) = 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5377] chdir("./52" [pid 5376] close(3 [pid 5053] close(3 [pid 5049] mkdir("./51", 0777 [pid 5377] <... chdir resumed>) = 0 [pid 5376] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5376] symlink("/dev/binderfs", "./binderfs" [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5376] <... symlink resumed>) = 0 [pid 5375] open(NULL, O_RDONLY [pid 5052] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5377] <... prctl resumed>) = 0 [pid 5375] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... mkdir resumed>) = 0 [pid 5377] setpgid(0, 0 [pid 5375] close(3 [pid 5377] <... setpgid resumed>) = 0 [pid 5375] <... close resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5375] close(4 [pid 5052] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5375] <... close resumed>) = 0 [pid 5377] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5049] <... openat resumed>) = 3 [pid 5375] close(5 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5375] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5375] close(6 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5377] write(3, "1000", 4 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] <... write resumed>) = 4 [pid 5375] close(7 [pid 5049] close(3 [pid 5377] close(3 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5377] <... close resumed>) = 0 [pid 5375] close(8 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... close resumed>) = 0 [pid 5377] symlink("/dev/binderfs", "./binderfs" [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] <... symlink resumed>) = 0 [pid 5376] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5375] close(9 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5378 attached [pid 5376] <... socket resumed>) = 3 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 53 [pid 5052] newfstatat(AT_FDCWD, "./56/binderfs", [pid 5376] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5378] set_robust_list(0x5555566e0760, 24 [pid 5377] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5378] <... set_robust_list resumed>) = 0 [pid 5376] <... socket resumed>) = 4 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./56/binderfs" [pid 5376] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5378] chdir("./51" [pid 5377] <... socket resumed>) = 3 [pid 5376] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5375] close(10 [pid 5052] <... unlink resumed>) = 0 [pid 5378] <... chdir resumed>) = 0 [pid 5377] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5376] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5377] <... socket resumed>) = 4 [pid 5376] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5375] close(11 [pid 5052] <... umount2 resumed>) = 0 [pid 5378] <... prctl resumed>) = 0 [pid 5377] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5376] memfd_create("syzkaller", 0 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5378] setpgid(0, 0 [pid 5377] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5376] <... memfd_create resumed>) = 5 [pid 5375] close(12 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5379 attached [pid 5378] <... setpgid resumed>) = 0 [pid 5377] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./56/file0", [pid 5377] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5376] <... mmap resumed>) = 0x7f1263f98000 [pid 5375] close(13 [pid 5379] set_robust_list(0x5555566e0760, 24 [pid 5377] memfd_create("syzkaller", 0 [pid 5376] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 53 [pid 5379] <... set_robust_list resumed>) = 0 [pid 5378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] mkdir("./file0", 000 [pid 5375] close(14) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5379] chdir("./51" [pid 5378] <... openat resumed>) = 3 [pid 5376] <... mkdir resumed>) = 0 [pid 5375] close(15 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5379] <... chdir resumed>) = 0 [pid 5378] write(3, "1000", 4 [pid 5377] <... memfd_create resumed>) = 5 [pid 5376] symlink(NULL, NULL [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] <... write resumed>) = 4 [pid 5377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5376] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5375] close(16 [pid 5052] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5379] <... prctl resumed>) = 0 [pid 5378] close(3 [pid 5377] <... mmap resumed>) = 0x7f1263f98000 [pid 5376] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5379] setpgid(0, 0 [pid 5378] <... close resumed>) = 0 [pid 5377] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5375] close(17 [pid 5052] newfstatat(4, "", [pid 5379] <... setpgid resumed>) = 0 [pid 5378] symlink("/dev/binderfs", "./binderfs" [pid 5377] mkdir("./file0", 000 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5377] <... mkdir resumed>) = 0 [pid 5375] close(18 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5378] <... symlink resumed>) = 0 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] <... mount resumed>) = 0 [pid 5375] close(19 [pid 5052] getdents64(4, [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... openat resumed>) = 3 [pid 5378] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5377] symlink(NULL, NULL [pid 5376] open(NULL, O_RDONLY [pid 5375] close(20 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5379] write(3, "1000", 4 [pid 5378] <... socket resumed>) = 3 [pid 5377] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5376] <... open resumed>) = -1 EFAULT (Bad address) [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5379] <... write resumed>) = 4 [pid 5378] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5377] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5376] close(3 [pid 5375] close(21 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5379] close(3 [pid 5378] <... socket resumed>) = 4 [pid 5377] <... mount resumed>) = 0 [pid 5376] <... close resumed>) = 0 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5378] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5376] close(4 [pid 5375] close(22 [pid 5052] <... close resumed>) = 0 [pid 5379] <... close resumed>) = 0 [pid 5378] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5376] <... close resumed>) = 0 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./56/file0" [pid 5377] open(NULL, O_RDONLY [pid 5379] symlink("/dev/binderfs", "./binderfs" [pid 5378] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5375] close(23 [pid 5377] <... open resumed>) = -1 EFAULT (Bad address) [pid 5376] close(5 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5375] close(24 [pid 5379] <... symlink resumed>) = 0 [pid 5378] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5377] close(3 [pid 5376] <... close resumed>) = 0 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5378] memfd_create("syzkaller", 0 [pid 5377] <... close resumed>) = 0 [pid 5376] close(6 [pid 5375] close(25) = -1 EBADF (Bad file descriptor) [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... socket resumed>) = 3 [pid 5378] <... memfd_create resumed>) = 5 [pid 5377] close(4 [pid 5376] close(7 [pid 5375] close(26 [pid 5379] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5377] <... close resumed>) = 0 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... socket resumed>) = 4 [pid 5375] close(27 [pid 5376] close(8 [pid 5052] <... rmdir resumed>) = 0 [pid 5379] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5378] <... mmap resumed>) = 0x7f1263f98000 [pid 5377] close(5 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5379] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5378] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5377] <... close resumed>) = 0 [pid 5376] close(9 [pid 5375] close(28 [pid 5379] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5378] mkdir("./file0", 000 [pid 5377] close(6 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5379] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5377] close(7 [pid 5375] close(29 [pid 5052] <... close resumed>) = 0 [pid 5379] memfd_create("syzkaller", 0 [pid 5378] <... mkdir resumed>) = 0 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] close(10 [pid 5375] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./56" [pid 5379] <... memfd_create resumed>) = 5 [pid 5377] close(8 [pid 5375] exit_group(0 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5378] symlink(NULL, NULL [pid 5377] close(9 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] close(11 [pid 5375] <... exit_group resumed>) = ? [pid 5379] <... mmap resumed>) = 0x7f1263f98000 [pid 5378] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5377] close(10 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./57", 0777 [pid 5379] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5378] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] close(12) = -1 EBADF (Bad file descriptor) [pid 5378] <... mount resumed>) = 0 [pid 5379] mkdir("./file0", 000 [pid 5376] close(13 [pid 5377] close(11 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5379] <... mkdir resumed>) = 0 [pid 5376] close(14 [pid 5379] symlink(NULL, NULL [pid 5378] open(NULL, O_RDONLY [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5375] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5378] <... open resumed>) = -1 EFAULT (Bad address) [pid 5376] close(15 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5379] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5378] close(3 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5376] close(16 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5378] <... close resumed>) = 0 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5376] close(17 [pid 5377] close(12 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5377] close(13 [pid 5050] <... openat resumed>) = 3 [pid 5379] <... mount resumed>) = 0 [pid 5376] close(18 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(3, "", [pid 5376] close(19) = -1 EBADF (Bad file descriptor) [pid 5377] close(14 [pid 5376] close(20 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5378] close(4 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] getdents64(3, [pid 5378] <... close resumed>) = 0 [pid 5377] close(15 [pid 5376] close(21 [pid 5052] close(3 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5379] open(NULL, O_RDONLY [pid 5378] close(5 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5050] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5379] <... open resumed>) = -1 EFAULT (Bad address) [pid 5378] <... close resumed>) = 0 [pid 5377] close(16 [pid 5376] close(22 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5379] close(3 [pid 5378] close(6 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5376] close(23 [pid 5379] <... close resumed>) = 0 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] close(17 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5379] close(4 [pid 5378] close(7 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] close(24 [pid 5050] unlink("./48/binderfs" [pid 5379] <... close resumed>) = 0 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] close(18 [pid 5050] <... unlink resumed>) = 0 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5378] close(8 [pid 5377] close(19 [pid 5050] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5380 attached [pid 5379] close(5 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5380] set_robust_list(0x5555566e0760, 24 [pid 5379] <... close resumed>) = 0 [pid 5378] close(9 [pid 5377] close(20 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] close(21) = -1 EBADF (Bad file descriptor) [pid 5377] close(22) = -1 EBADF (Bad file descriptor) [pid 5380] <... set_robust_list resumed>) = 0 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] close(23) = -1 EBADF (Bad file descriptor) [pid 5377] close(24 [pid 5380] chdir("./57" [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] close(6 [pid 5378] close(10 [pid 5380] <... chdir resumed>) = 0 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] close(25 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 59 [pid 5380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5379] close(7 [pid 5378] close(11 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5380] <... prctl resumed>) = 0 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5380] setpgid(0, 0 [pid 5379] close(8 [pid 5378] close(12 [pid 5380] <... setpgid resumed>) = 0 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] close(25 [pid 5380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] close(9 [pid 5378] close(13 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] close(10 [pid 5378] close(14 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] close(11 [pid 5378] close(15 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] close(12 [pid 5378] close(16 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] close(13) = -1 EBADF (Bad file descriptor) [pid 5378] close(17 [pid 5377] close(26 [pid 5050] newfstatat(AT_FDCWD, "./48/file0", [pid 5379] close(14 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] close(18 [pid 5379] close(15 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5380] <... openat resumed>) = 3 [pid 5379] close(16 [pid 5378] close(19 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] close(26 [pid 5379] close(17 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] close(18 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] close(19 [pid 5378] close(20 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] close(27 [pid 5379] close(20) = -1 EBADF (Bad file descriptor) [pid 5379] close(21 [pid 5378] close(21 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5380] write(3, "1000", 4 [pid 5379] close(22 [pid 5376] close(28 [pid 5380] <... write resumed>) = 4 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5380] close(3 [pid 5379] close(23 [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5380] <... close resumed>) = 0 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] close(22 [pid 5376] close(29 [pid 5380] symlink("/dev/binderfs", "./binderfs" [pid 5379] close(24 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5376] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] close(23 [pid 5379] close(25 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] close(27 [pid 5050] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5380] <... symlink resumed>) = 0 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] close(24 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5380] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5379] close(26 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] close(28 [pid 5050] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5380] <... socket resumed>) = 3 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] close(25 [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] close(29 [pid 5050] newfstatat(4, "", [pid 5377] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5378] close(26 [pid 5377] exit_group(0 [pid 5050] getdents64(4, [pid 5380] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5379] close(27 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5377] <... exit_group resumed>) = ? [pid 5376] exit_group(0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5380] <... socket resumed>) = 4 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] close(27 [pid 5377] +++ exited with 0 +++ [pid 5376] <... exit_group resumed>) = ? [pid 5050] getdents64(4, [pid 5379] close(28 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] close(28 [pid 5050] close(4 [pid 5380] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5379] close(29 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5380] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5379] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5378] close(29 [pid 5376] +++ exited with 0 +++ [pid 5380] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5050] rmdir("./48/file0" [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5380] memfd_create("syzkaller", 0 [pid 5379] exit_group(0 [pid 5378] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... rmdir resumed>) = 0 [pid 5380] <... memfd_create resumed>) = 5 [pid 5379] <... exit_group resumed>) = ? [pid 5378] exit_group(0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] getdents64(3, [pid 5048] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] close(3 [pid 5048] <... openat resumed>) = 3 [pid 5050] <... close resumed>) = 0 [pid 5048] newfstatat(3, "", [pid 5050] rmdir("./48" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5380] <... mmap resumed>) = 0x7f1263f98000 [pid 5379] +++ exited with 0 +++ [pid 5378] <... exit_group resumed>) = ? [pid 5051] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... rmdir resumed>) = 0 [pid 5048] getdents64(3, [pid 5051] <... openat resumed>) = 3 [pid 5050] mkdir("./49", 0777 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] newfstatat(3, "", [pid 5050] <... mkdir resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5380] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] getdents64(3, [pid 5380] mkdir("./file0", 000 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5380] <... mkdir resumed>) = 0 [pid 5051] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... openat resumed>) = 3 [pid 5048] newfstatat(AT_FDCWD, "./50/binderfs", [pid 5380] symlink(NULL, NULL [pid 5378] +++ exited with 0 +++ [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5380] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] newfstatat(AT_FDCWD, "./52/binderfs", [pid 5380] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] unlink("./50/binderfs" [pid 5380] <... mount resumed>) = 0 [pid 5051] unlink("./52/binderfs" [pid 5050] close(3 [pid 5049] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5380] open(NULL, O_RDONLY [pid 5053] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... openat resumed>) = 3 [pid 5049] newfstatat(3, "", [pid 5380] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5380] close(3 [pid 5053] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5380] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5051] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5380] close(4 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5380] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5051] newfstatat(AT_FDCWD, "./52/file0", [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5381 attached [pid 5380] close(5 [pid 5053] newfstatat(3, "", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 51 [pid 5049] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = 0 [pid 5381] set_robust_list(0x5555566e0760, 24 [pid 5380] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5381] <... set_robust_list resumed>) = 0 [pid 5380] close(6 [pid 5053] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./51/binderfs", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(AT_FDCWD, "./50/file0", [pid 5381] chdir("./49" [pid 5380] close(7 [pid 5053] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 4 [pid 5049] unlink("./51/binderfs" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(4, "", [pid 5049] <... unlink resumed>) = 0 [pid 5048] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5381] <... chdir resumed>) = 0 [pid 5380] close(8 [pid 5053] newfstatat(AT_FDCWD, "./51/binderfs", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5049] <... umount2 resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5381] <... prctl resumed>) = 0 [pid 5380] close(9 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 4 [pid 5381] setpgid(0, 0 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(4, [pid 5381] <... setpgid resumed>) = 0 [pid 5380] close(10 [pid 5053] unlink("./51/binderfs" [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(4 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(4, "", [pid 5381] <... openat resumed>) = 3 [pid 5380] close(11 [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./51/file0", [pid 5381] write(3, "1000", 4 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] rmdir("./52/file0" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5381] <... write resumed>) = 4 [pid 5380] close(12 [pid 5051] <... rmdir resumed>) = 0 [pid 5381] close(3 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5381] <... close resumed>) = 0 [pid 5380] close(13 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5381] symlink("/dev/binderfs", "./binderfs" [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(3 [pid 5381] <... symlink resumed>) = 0 [pid 5380] close(14 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] getdents64(4, [pid 5380] close(15) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./51/file0", [pid 5051] rmdir("./52" [pid 5049] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5381] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5380] close(16 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] close(4 [pid 5381] <... socket resumed>) = 3 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5380] close(17 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... close resumed>) = 0 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5380] close(18 [pid 5048] rmdir("./50/file0" [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5380] close(19 [pid 5053] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5381] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5381] <... socket resumed>) = 4 [pid 5380] close(20 [pid 5053] <... openat resumed>) = 4 [pid 5381] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./53", 0777 [pid 5381] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5380] close(21 [pid 5053] newfstatat(4, "", [pid 5051] <... mkdir resumed>) = 0 [pid 5381] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5380] close(22 [pid 5381] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... rmdir resumed>) = 0 [pid 5381] memfd_create("syzkaller", 0 [pid 5380] close(23 [pid 5049] newfstatat(4, "", [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5380] close(24 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, [pid 5381] <... memfd_create resumed>) = 5 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5380] close(25 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... openat resumed>) = 3 [pid 5381] <... mmap resumed>) = 0x7f1263f98000 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5380] close(26 [pid 5381] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5381] mkdir("./file0", 000 [pid 5380] close(27 [pid 5053] close(4 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5381] <... mkdir resumed>) = 0 [pid 5380] close(28 [pid 5053] <... close resumed>) = 0 [pid 5051] close(3 [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./51/file0" [pid 5380] close(29 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] close(3 [pid 5049] getdents64(4, [pid 5381] symlink(NULL, NULL [pid 5380] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5381] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5380] exit_group(0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5049] close(4 [pid 5048] rmdir("./50" [pid 5381] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5380] <... exit_group resumed>) = ? [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... close resumed>) = 0 [pid 5381] <... mount resumed>) = 0 [pid 5380] +++ exited with 0 +++ [pid 5048] <... rmdir resumed>) = 0 [pid 5053] getdents64(3, [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] close(3) = 0 [pid 5052] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5381] open(NULL, O_RDONLY [pid 5052] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5381] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] rmdir("./51" [pid 5052] <... openat resumed>) = 3 [pid 5381] close(3 [pid 5053] <... rmdir resumed>) = 0 [pid 5381] <... close resumed>) = 0 [pid 5381] close(4 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5382 attached [pid 5381] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 55 [pid 5382] set_robust_list(0x5555566e0760, 24 [pid 5381] close(5 [pid 5053] mkdir("./52", 0777 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5381] <... close resumed>) = 0 [pid 5052] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] rmdir("./51/file0" [pid 5048] mkdir("./51", 0777 [pid 5382] <... set_robust_list resumed>) = 0 [pid 5382] chdir("./53") = 0 [pid 5381] close(6 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] <... prctl resumed>) = 0 [pid 5381] close(7 [pid 5382] setpgid(0, 0 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] <... setpgid resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./57/binderfs", [pid 5381] close(8 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./57/binderfs" [pid 5382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5381] close(9 [pid 5052] <... unlink resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5052] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5382] <... openat resumed>) = 3 [pid 5381] close(10 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5048] <... openat resumed>) = 3 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5381] close(11 [pid 5053] <... openat resumed>) = 3 [pid 5049] getdents64(3, [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] write(3, "1000", 4 [pid 5381] close(12 [pid 5382] <... write resumed>) = 4 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5382] close(3 [pid 5381] close(13 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5382] <... close resumed>) = 0 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] symlink("/dev/binderfs", "./binderfs" [pid 5381] close(14 [pid 5053] close(3 [pid 5382] <... symlink resumed>) = 0 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5381] close(15 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5048] close(3 [pid 5382] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5381] close(16 [pid 5052] newfstatat(AT_FDCWD, "./57/file0", [pid 5048] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5382] <... socket resumed>) = 3 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] rmdir("./51" [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5382] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5381] close(17 [pid 5052] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5382] <... socket resumed>) = 4 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5382] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5381] close(18 [pid 5052] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5382] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5382] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5381] close(19 [pid 5052] <... openat resumed>) = 4 [pid 5382] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5382] memfd_create("syzkaller", 0 [pid 5381] close(20 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5383 attached [pid 5382] <... memfd_create resumed>) = 5 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5049] mkdir("./52", 0777 [pid 5383] set_robust_list(0x5555566e0760, 24 [pid 5382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5381] close(21 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 54 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] <... set_robust_list resumed>) = 0 [pid 5382] <... mmap resumed>) = 0x7f1263f98000 [pid 5381] close(22 [pid 5052] getdents64(4, [pid 5383] chdir("./52" [pid 5382] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5381] close(23 [pid 5052] close(4 [pid 5049] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5384 attached [pid 5383] <... chdir resumed>) = 0 [pid 5382] mkdir("./file0", 000 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 53 [pid 5384] set_robust_list(0x5555566e0760, 24 [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5381] close(24 [pid 5052] rmdir("./57/file0" [pid 5383] <... prctl resumed>) = 0 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5384] <... set_robust_list resumed>) = 0 [pid 5383] setpgid(0, 0 [pid 5382] <... mkdir resumed>) = 0 [pid 5381] close(25 [pid 5049] <... openat resumed>) = 3 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] chdir("./51" [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5384] <... chdir resumed>) = 0 [pid 5383] <... setpgid resumed>) = 0 [pid 5381] close(26 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] <... openat resumed>) = 3 [pid 5382] symlink(NULL, NULL [pid 5381] close(27 [pid 5382] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5381] close(28 [pid 5382] <... mount resumed>) = 0 [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5049] close(3 [pid 5384] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5381] close(29 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5383] write(3, "1000", 4 [pid 5382] open(NULL, O_RDONLY [pid 5381] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5384] <... prctl resumed>) = 0 [pid 5383] <... write resumed>) = 4 [pid 5382] <... open resumed>) = -1 EFAULT (Bad address) [pid 5381] exit_group(0 [pid 5052] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5384] setpgid(0, 0 [pid 5383] close(3 [pid 5382] close(3 [pid 5381] <... exit_group resumed>) = ? [pid 5052] rmdir("./57" [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5384] <... setpgid resumed>) = 0 [pid 5383] <... close resumed>) = 0 [pid 5383] symlink("/dev/binderfs", "./binderfs" [pid 5382] <... close resumed>) = 0 [pid 5384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5383] <... symlink resumed>) = 0 [pid 5382] close(4 [pid 5381] +++ exited with 0 +++ [pid 5052] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5385 attached [pid 5382] <... close resumed>) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5385] set_robust_list(0x5555566e0760, 24 [pid 5384] <... openat resumed>) = 3 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 54 [pid 5385] <... set_robust_list resumed>) = 0 [pid 5384] write(3, "1000", 4 [pid 5383] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5382] close(5 [pid 5052] mkdir("./58", 0777 [pid 5385] chdir("./52" [pid 5384] <... write resumed>) = 4 [pid 5382] <... close resumed>) = 0 [pid 5385] <... chdir resumed>) = 0 [pid 5383] <... socket resumed>) = 3 [pid 5382] close(6 [pid 5052] <... mkdir resumed>) = 0 [pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] close(3 [pid 5385] <... prctl resumed>) = 0 [pid 5383] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5382] close(7 [pid 5385] setpgid(0, 0 [pid 5384] <... close resumed>) = 0 [pid 5383] <... socket resumed>) = 4 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... setpgid resumed>) = 0 [pid 5384] symlink("/dev/binderfs", "./binderfs" [pid 5383] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5382] close(8 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5383] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... symlink resumed>) = 0 [pid 5383] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5382] close(9 [pid 5052] <... openat resumed>) = 3 [pid 5384] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5383] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5385] <... openat resumed>) = 3 [pid 5384] <... socket resumed>) = 3 [pid 5383] memfd_create("syzkaller", 0 [pid 5382] close(10 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... openat resumed>) = 3 [pid 5384] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(3, "", [pid 5385] write(3, "1000", 4 [pid 5383] <... memfd_create resumed>) = 5 [pid 5382] close(11 [pid 5385] <... write resumed>) = 4 [pid 5052] close(3 [pid 5384] <... socket resumed>) = 4 [pid 5385] close(3 [pid 5383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5385] <... close resumed>) = 0 [pid 5383] <... mmap resumed>) = 0x7f1263f98000 [pid 5382] close(12 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5385] symlink("/dev/binderfs", "./binderfs" [pid 5384] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] getdents64(3, [pid 5384] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5383] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5384] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5383] mkdir("./file0", 000 [pid 5382] close(13) = -1 EBADF (Bad file descriptor) [pid 5385] <... symlink resumed>) = 0 [pid 5384] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5383] <... mkdir resumed>) = 0 [pid 5382] close(14 [pid 5050] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5385] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... socket resumed>) = 3 [pid 5384] memfd_create("syzkaller", 0 [pid 5382] close(15) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5383] symlink(NULL, NULL [pid 5382] close(16./strace-static-x86_64: Process 5386 attached [pid 5385] <... socket resumed>) = 4 [pid 5384] <... memfd_create resumed>) = 5 [pid 5383] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5385] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5383] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5382] close(17 [pid 5386] set_robust_list(0x5555566e0760, 24 [pid 5385] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5383] <... mount resumed>) = 0 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 60 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5386] <... set_robust_list resumed>) = 0 [pid 5385] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5382] close(18 [pid 5050] unlink("./49/binderfs" [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] close(19 [pid 5386] chdir("./58" [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... unlink resumed>) = 0 [pid 5385] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5382] close(20 [pid 5386] <... chdir resumed>) = 0 [pid 5385] memfd_create("syzkaller", 0 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... mmap resumed>) = 0x7f1263f98000 [pid 5386] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5385] <... memfd_create resumed>) = 5 [pid 5382] close(21 [pid 5050] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5386] <... prctl resumed>) = 0 [pid 5383] open(NULL, O_RDONLY [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] setpgid(0, 0 [pid 5385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5384] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5383] <... open resumed>) = -1 EFAULT (Bad address) [pid 5382] close(22 [pid 5386] <... setpgid resumed>) = 0 [pid 5385] <... mmap resumed>) = 0x7f1263f98000 [pid 5383] close(3 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5383] <... close resumed>) = 0 [pid 5382] close(23 [pid 5385] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] mkdir("./file0", 000 [pid 5384] mkdir("./file0", 000 [pid 5382] close(24 [pid 5050] <... umount2 resumed>) = 0 [pid 5386] <... openat resumed>) = 3 [pid 5385] <... mkdir resumed>) = 0 [pid 5384] <... mkdir resumed>) = 0 [pid 5383] close(4 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] close(25 [pid 5386] write(3, "1000", 4 [pid 5383] <... close resumed>) = 0 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] close(26 [pid 5386] <... write resumed>) = 4 [pid 5383] close(5 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] close(3 [pid 5383] <... close resumed>) = 0 [pid 5382] close(27 [pid 5386] <... close resumed>) = 0 [pid 5385] symlink(NULL, NULL [pid 5383] close(6 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] symlink("/dev/binderfs", "./binderfs" [pid 5385] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] close(28 [pid 5386] <... symlink resumed>) = 0 [pid 5383] close(7 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5385] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] close(29 [pid 5386] <... socket resumed>) = 3 [pid 5385] <... mount resumed>) = 0 [pid 5383] close(8 [pid 5382] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] exit_group(0 [pid 5386] <... socket resumed>) = 4 [pid 5383] close(9) = -1 EBADF (Bad file descriptor) [pid 5386] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5383] close(10 [pid 5382] <... exit_group resumed>) = ? [pid 5386] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5385] open(NULL, O_RDONLY [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5385] <... open resumed>) = -1 EFAULT (Bad address) [pid 5383] close(11 [pid 5385] close(3 [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5385] <... close resumed>) = 0 [pid 5383] close(12 [pid 5386] memfd_create("syzkaller", 0 [pid 5385] close(4 [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] close(13) = -1 EBADF (Bad file descriptor) [pid 5383] close(14) = -1 EBADF (Bad file descriptor) [pid 5386] <... memfd_create resumed>) = 5 [pid 5385] <... close resumed>) = 0 [pid 5383] close(15 [pid 5385] close(5 [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... close resumed>) = 0 [pid 5383] close(16 [pid 5386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] <... mmap resumed>) = 0x7f1263f98000 [pid 5385] close(6 [pid 5383] close(17 [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] close(7 [pid 5383] close(18 [pid 5386] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5382] +++ exited with 0 +++ [pid 5386] mkdir("./file0", 000 [pid 5385] close(8 [pid 5383] close(19 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5386] <... mkdir resumed>) = 0 [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] symlink(NULL, NULL [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5050] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5383] close(20) = -1 EBADF (Bad file descriptor) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5383] close(21) = -1 EBADF (Bad file descriptor) [pid 5385] close(9 [pid 5383] close(22) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5383] close(23 [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] close(10 [pid 5383] close(24 [pid 5051] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5386] symlink(NULL, NULL [pid 5385] close(11 [pid 5383] close(25 [pid 5051] newfstatat(3, "", [pid 5386] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] newfstatat(AT_FDCWD, "./49/file0", [pid 5386] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5385] close(12 [pid 5383] close(26 [pid 5051] getdents64(3, [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] close(13 [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5384] <... mount resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] close(27 [pid 5050] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5386] <... mount resumed>) = 0 [pid 5385] close(14 [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] open(NULL, O_RDONLY [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] open(NULL, O_RDONLY [pid 5383] close(28 [pid 5051] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5386] <... open resumed>) = -1 EFAULT (Bad address) [pid 5385] close(15 [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5386] close(3 [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5383] close(29 [pid 5051] newfstatat(AT_FDCWD, "./53/binderfs", [pid 5386] <... close resumed>) = 0 [pid 5385] close(16 [pid 5384] <... open resumed>) = -1 EFAULT (Bad address) [pid 5383] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] close(3 [pid 5383] exit_group(0 [pid 5050] newfstatat(4, "", [pid 5386] close(4 [pid 5385] close(17 [pid 5384] <... close resumed>) = 0 [pid 5383] <... exit_group resumed>) = ? [pid 5051] unlink("./53/binderfs" [pid 5386] <... close resumed>) = 0 [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5385] close(18) = -1 EBADF (Bad file descriptor) [pid 5385] close(19) = -1 EBADF (Bad file descriptor) [pid 5385] close(20) = -1 EBADF (Bad file descriptor) [pid 5386] close(5 [pid 5385] close(21 [pid 5051] <... unlink resumed>) = 0 [pid 5050] getdents64(4, [pid 5386] <... close resumed>) = 0 [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5384] <... close resumed>) = 0 [pid 5385] close(22) = -1 EBADF (Bad file descriptor) [pid 5385] close(23) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5386] close(6 [pid 5385] close(24 [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] close(7 [pid 5384] close(5 [pid 5050] getdents64(4, [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] close(8 [pid 5385] close(25 [pid 5384] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = 0 [pid 5050] close(4 [pid 5386] close(9 [pid 5385] close(26 [pid 5383] +++ exited with 0 +++ [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] close(6 [pid 5050] <... close resumed>) = 0 [pid 5386] close(10 [pid 5385] close(27 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./49/file0" [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5386] close(11 [pid 5385] close(28 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] newfstatat(AT_FDCWD, "./53/file0", [pid 5386] close(12 [pid 5385] close(29 [pid 5384] close(7 [pid 5053] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] close(13 [pid 5385] exit_group(0 [pid 5053] newfstatat(3, "", [pid 5051] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5385] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5386] close(14 [pid 5385] +++ exited with 0 +++ [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5051] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5386] close(15) = -1 EBADF (Bad file descriptor) [pid 5384] close(8 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] getdents64(3, [pid 5386] close(16) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5386] close(17 [pid 5053] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(4, "", [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5386] close(18) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./52/binderfs", [pid 5051] getdents64(4, [pid 5386] close(19) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5386] close(20 [pid 5053] unlink("./52/binderfs" [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] close(9 [pid 5050] close(3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5386] close(21 [pid 5053] <... unlink resumed>) = 0 [pid 5051] getdents64(4, [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] close(22) = -1 EBADF (Bad file descriptor) [pid 5386] close(23) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] close(24 [pid 5384] close(10 [pid 5051] close(4 [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5050] rmdir("./49" [pid 5049] <... openat resumed>) = 3 [pid 5386] close(25 [pid 5384] close(11 [pid 5051] rmdir("./53/file0" [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5386] close(26 [pid 5384] close(12 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5384] close(13 [pid 5386] close(27 [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(3, [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] close(14 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5386] close(28 [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./52/file0", [pid 5384] close(15 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5386] close(29 [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] close(16 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] close(3 [pid 5050] mkdir("./50", 0777 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5386] exit_group(0 [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5386] <... exit_group resumed>) = ? [pid 5384] close(17 [pid 5053] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5386] +++ exited with 0 +++ [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] rmdir("./53" [pid 5384] close(18 [pid 5053] <... openat resumed>) = 4 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... mkdir resumed>) = 0 [pid 5049] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5384] close(19 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] close(20 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5049] newfstatat(AT_FDCWD, "./52/binderfs", [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5384] close(21) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5052] <... restart_syscall resumed>) = 0 [pid 5051] mkdir("./54", 0777 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5384] close(22 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./52/binderfs" [pid 5384] close(23) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] close(3 [pid 5049] <... unlink resumed>) = 0 [pid 5384] close(24 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5050] <... close resumed>) = 0 [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5384] close(25 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5384] close(26 [pid 5053] <... close resumed>) = 0 [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5051] close(3 [pid 5049] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5384] close(27 [pid 5053] rmdir("./52/file0" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5384] close(28) = -1 EBADF (Bad file descriptor) [pid 5384] close(29 [pid 5049] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5384] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5384] exit_group(0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5384] <... exit_group resumed>) = ? [pid 5384] +++ exited with 0 +++ [pid 5053] <... rmdir resumed>) = 0 [pid 5052] getdents64(3, ./strace-static-x86_64: Process 5388 attached [pid 5053] getdents64(3, [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] newfstatat(AT_FDCWD, "./52/file0", [pid 5388] set_robust_list(0x5555566e0760, 24 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 56 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5387 attached [pid 5388] <... set_robust_list resumed>) = 0 [pid 5053] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5387] set_robust_list(0x5555566e0760, 24 [pid 5388] chdir("./54" [pid 5053] <... close resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./58/binderfs", [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 52 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5387] <... set_robust_list resumed>) = 0 [pid 5388] <... chdir resumed>) = 0 [pid 5053] rmdir("./52" [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5387] chdir("./50" [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... rmdir resumed>) = 0 [pid 5052] unlink("./58/binderfs" [pid 5049] <... openat resumed>) = 4 [pid 5048] <... openat resumed>) = 3 [pid 5049] newfstatat(4, "", [pid 5048] newfstatat(3, "", [pid 5387] <... chdir resumed>) = 0 [pid 5388] <... prctl resumed>) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5388] setpgid(0, 0 [pid 5053] mkdir("./53", 0777 [pid 5052] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, [pid 5387] <... prctl resumed>) = 0 [pid 5388] <... setpgid resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5049] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5387] setpgid(0, 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] <... mkdir resumed>) = 0 [pid 5049] getdents64(4, [pid 5048] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] close(4 [pid 5048] newfstatat(AT_FDCWD, "./51/binderfs", [pid 5387] <... setpgid resumed>) = 0 [pid 5388] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5388] write(3, "1000", 4 [pid 5052] newfstatat(AT_FDCWD, "./58/file0", [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5388] <... write resumed>) = 4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] rmdir("./52/file0" [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5052] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5388] close(3 [pid 5048] unlink("./51/binderfs" [pid 5387] <... openat resumed>) = 3 [pid 5388] <... close resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5387] write(3, "1000", 4 [pid 5388] symlink("/dev/binderfs", "./binderfs" [pid 5387] <... write resumed>) = 4 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5048] <... unlink resumed>) = 0 [pid 5388] <... symlink resumed>) = 0 [pid 5387] close(3 [pid 5053] close(3 [pid 5052] <... openat resumed>) = 4 [pid 5053] <... close resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5387] <... close resumed>) = 0 [pid 5052] getdents64(4, [pid 5049] close(3 [pid 5048] <... umount2 resumed>) = 0 [pid 5387] symlink("/dev/binderfs", "./binderfs" [pid 5388] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5049] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] rmdir("./52" [pid 5387] <... symlink resumed>) = 0 [pid 5388] <... socket resumed>) = 3 [pid 5052] getdents64(4, [pid 5049] <... rmdir resumed>) = 0 [pid 5048] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./51/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] mkdir("./53", 0777 [pid 5048] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5048] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5048] getdents64(4, [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] close(3 [pid 5048] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] close(4) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] rmdir("./51/file0" [pid 5387] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5388] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] close(4 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 55 ./strace-static-x86_64: Process 5389 attached [pid 5388] <... socket resumed>) = 4 [pid 5389] set_robust_list(0x5555566e0760, 24 [pid 5387] <... socket resumed>) = 3 [pid 5388] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] <... close resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5389] <... set_robust_list resumed>) = 0 [pid 5387] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5388] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] rmdir("./58/file0" [pid 5389] chdir("./53" [pid 5387] <... socket resumed>) = 4 [pid 5389] <... chdir resumed>) = 0 [pid 5387] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5388] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5387] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5388] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(3, [pid 5389] <... prctl resumed>) = 0 [pid 5387] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] getdents64(3, [pid 5389] setpgid(0, 0 [pid 5387] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5389] <... setpgid resumed>) = 0 [pid 5048] close(3./strace-static-x86_64: Process 5390 attached [pid 5387] memfd_create("syzkaller", 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5388] memfd_create("syzkaller", 0 [pid 5052] close(3 [pid 5390] set_robust_list(0x5555566e0760, 24 [pid 5387] <... memfd_create resumed>) = 5 [pid 5388] <... memfd_create resumed>) = 5 [pid 5052] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5390] <... set_robust_list resumed>) = 0 [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] rmdir("./58" [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 55 [pid 5048] rmdir("./51" [pid 5390] chdir("./53" [pid 5389] <... openat resumed>) = 3 [pid 5387] <... mmap resumed>) = 0x7f1263f98000 [pid 5388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5390] <... chdir resumed>) = 0 [pid 5387] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5387] mkdir("./file0", 000 [pid 5389] write(3, "1000", 4 [pid 5388] <... mmap resumed>) = 0x7f1263f98000 [pid 5387] <... mkdir resumed>) = 0 [pid 5388] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5387] symlink(NULL, NULL [pid 5388] mkdir("./file0", 000 [pid 5389] <... write resumed>) = 4 [pid 5387] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] mkdir("./52", 0777 [pid 5390] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5389] close(3 [pid 5387] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5390] <... prctl resumed>) = 0 [pid 5389] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5389] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5388] <... mkdir resumed>) = 0 [pid 5390] setpgid(0, 0 [pid 5387] <... mount resumed>) = 0 [pid 5388] symlink(NULL, NULL [pid 5052] mkdir("./59", 0777 [pid 5048] <... mkdir resumed>) = 0 [pid 5390] <... setpgid resumed>) = 0 [pid 5387] open(NULL, O_RDONLY [pid 5389] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5389] <... socket resumed>) = 3 [pid 5387] <... open resumed>) = -1 EFAULT (Bad address) [pid 5048] <... openat resumed>) = 3 [pid 5389] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5390] write(3, "1000", 4 [pid 5389] <... socket resumed>) = 4 [pid 5388] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5387] close(3 [pid 5052] <... mkdir resumed>) = 0 [pid 5390] <... write resumed>) = 4 [pid 5389] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5387] <... close resumed>) = 0 [pid 5388] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5389] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5389] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5388] <... mount resumed>) = 0 [pid 5048] close(3 [pid 5390] close(3 [pid 5389] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5387] close(4 [pid 5388] open(NULL, O_RDONLY [pid 5052] <... openat resumed>) = 3 [pid 5048] <... close resumed>) = 0 [pid 5389] memfd_create("syzkaller", 0) = 5 [pid 5388] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5387] <... close resumed>) = 0 [pid 5388] close(3 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5390] <... close resumed>) = 0 [pid 5387] close(5 [pid 5388] <... close resumed>) = 0 [pid 5052] close(3 [pid 5390] symlink("/dev/binderfs", "./binderfs" [pid 5387] <... close resumed>) = 0 [pid 5390] <... symlink resumed>) = 0 [pid 5389] <... mmap resumed>) = 0x7f1263f98000 [pid 5387] close(6 [pid 5388] close(4 [pid 5052] <... close resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 54 [pid 5389] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5389] mkdir("./file0", 000) = 0 [pid 5389] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5389] mount(NULL, "./file0", "sysfs", 0, NULL./strace-static-x86_64: Process 5391 attached [pid 5390] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5389] <... mount resumed>) = 0 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5390] <... socket resumed>) = 3 [pid 5389] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5389] close(3) = 0 [pid 5389] close(4 [pid 5391] set_robust_list(0x5555566e0760, 24 [pid 5390] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5389] <... close resumed>) = 0 [pid 5387] close(7 [pid 5388] close(5 [pid 5391] <... set_robust_list resumed>) = 0 [pid 5389] close(5 [pid 5388] <... close resumed>) = 0 [pid 5390] <... socket resumed>) = 4 [pid 5389] <... close resumed>) = 0 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 61 [pid 5391] chdir("./52" [pid 5390] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5389] close(6 [pid 5387] close(8 [pid 5388] close(6 [pid 5391] <... chdir resumed>) = 0 [pid 5390] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5392 attached [pid 5391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5390] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5389] close(7 [pid 5387] close(9 [pid 5388] close(7 [pid 5392] set_robust_list(0x5555566e0760, 24 [pid 5391] <... prctl resumed>) = 0 [pid 5390] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... set_robust_list resumed>) = 0 [pid 5391] setpgid(0, 0 [pid 5390] memfd_create("syzkaller", 0 [pid 5389] close(8 [pid 5387] close(10 [pid 5388] close(8 [pid 5392] chdir("./59" [pid 5391] <... setpgid resumed>) = 0 [pid 5390] <... memfd_create resumed>) = 5 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] close(9) = -1 EBADF (Bad file descriptor) [pid 5387] close(11 [pid 5388] close(9 [pid 5389] close(10 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... chdir resumed>) = 0 [pid 5391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(12 [pid 5388] close(10 [pid 5390] <... mmap resumed>) = 0x7f1263f98000 [pid 5389] close(11 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5390] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(13 [pid 5388] close(11 [pid 5392] setpgid(0, 0 [pid 5391] <... openat resumed>) = 3 [pid 5390] mkdir("./file0", 000 [pid 5389] close(12 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... setpgid resumed>) = 0 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(14 [pid 5388] close(12 [pid 5389] close(13 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(15 [pid 5389] close(14 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(16 [pid 5392] <... openat resumed>) = 3 [pid 5391] write(3, "1000", 4 [pid 5389] close(15 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] <... mkdir resumed>) = 0 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(17 [pid 5392] write(3, "1000", 4 [pid 5390] symlink(NULL, NULL [pid 5389] close(16 [pid 5391] <... write resumed>) = 4 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] close(13 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(18 [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... write resumed>) = 4 [pid 5389] close(17 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] close(14 [pid 5391] close(3 [pid 5392] close(3 [pid 5390] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(19 [pid 5392] <... close resumed>) = 0 [pid 5391] <... close resumed>) = 0 [pid 5390] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5389] close(18 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(20 [pid 5392] symlink("/dev/binderfs", "./binderfs" [pid 5389] close(19 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] close(15 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(21 [pid 5390] <... mount resumed>) = 0 [pid 5391] symlink("/dev/binderfs", "./binderfs" [pid 5389] close(20 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(22 [pid 5388] close(16 [pid 5389] close(21 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... symlink resumed>) = 0 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(23 [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... symlink resumed>) = 0 [pid 5390] open(NULL, O_RDONLY [pid 5391] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5390] <... open resumed>) = -1 EFAULT (Bad address) [pid 5389] close(22 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] close(17 [pid 5392] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5387] close(24 [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... socket resumed>) = 3 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(25 [pid 5392] <... socket resumed>) = 3 [pid 5391] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5389] close(23 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] close(18 [pid 5392] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5391] <... socket resumed>) = 4 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] close(26 [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5390] close(3 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] close(19 [pid 5392] <... socket resumed>) = 4 [pid 5392] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5391] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5387] close(27 [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] close(20 [pid 5391] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5387] close(28 [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5391] memfd_create("syzkaller", 0 [pid 5390] <... close resumed>) = 0 [pid 5389] close(24 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] close(21) = -1 EBADF (Bad file descriptor) [pid 5387] close(29 [pid 5388] close(22 [pid 5392] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5387] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5392] memfd_create("syzkaller", 0 [pid 5391] <... memfd_create resumed>) = 5 [pid 5390] close(4 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] exit_group(0 [pid 5388] close(23 [pid 5391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5390] <... close resumed>) = 0 [pid 5389] close(25 [pid 5390] close(5 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] <... close resumed>) = 0 [pid 5389] close(26 [pid 5390] close(6 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] close(27 [pid 5391] <... mmap resumed>) = 0x7f1263f98000 [pid 5390] close(7 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5387] <... exit_group resumed>) = ? [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... memfd_create resumed>) = 5 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] close(28 [pid 5388] close(24 [pid 5390] close(8 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] close(29 [pid 5390] close(9 [pid 5389] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] exit_group(0 [pid 5390] close(10) = -1 EBADF (Bad file descriptor) [pid 5389] <... exit_group resumed>) = ? [pid 5390] close(11 [pid 5391] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5389] +++ exited with 0 +++ [pid 5387] +++ exited with 0 +++ [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5391] mkdir("./file0", 000 [pid 5390] close(12 [pid 5388] close(25 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5392] <... mmap resumed>) = 0x7f1263f98000 [pid 5391] <... mkdir resumed>) = 0 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5391] symlink(NULL, NULL [pid 5390] close(13 [pid 5388] close(26 [pid 5392] mkdir("./file0", 000 [pid 5391] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5390] close(14 [pid 5388] close(27 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5392] <... mkdir resumed>) = 0 [pid 5391] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5390] close(15 [pid 5388] close(28 [pid 5050] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5392] symlink(NULL, NULL [pid 5391] <... mount resumed>) = 0 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 3 [pid 5392] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5391] open(NULL, O_RDONLY [pid 5390] close(16 [pid 5388] close(29 [pid 5053] newfstatat(3, "", [pid 5050] newfstatat(3, "", [pid 5392] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5388] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5391] close(3 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5390] close(17 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5390] close(18 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./50/binderfs", [pid 5390] close(19 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5391] <... close resumed>) = 0 [pid 5391] close(4 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] unlink("./50/binderfs" [pid 5392] <... mount resumed>) = 0 [pid 5390] close(20 [pid 5050] <... unlink resumed>) = 0 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = 0 [pid 5388] exit_group(0 [pid 5050] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5391] close(5 [pid 5390] close(21 [pid 5053] getdents64(3, [pid 5050] <... umount2 resumed>) = 0 [pid 5392] open(NULL, O_RDONLY [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5388] <... exit_group resumed>) = ? [pid 5050] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5391] <... close resumed>) = 0 [pid 5390] close(22 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5391] close(6 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./50/file0", [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] close(23 [pid 5053] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5392] <... open resumed>) = -1 EFAULT (Bad address) [pid 5391] close(7 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] close(3 [pid 5390] close(24 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... close resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] close(25 [pid 5053] newfstatat(AT_FDCWD, "./53/binderfs", [pid 5050] <... openat resumed>) = 4 [pid 5392] close(4 [pid 5391] close(8 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... close resumed>) = 0 [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] close(26 [pid 5388] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] newfstatat(4, "", [pid 5392] close(5 [pid 5391] close(9 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./53/binderfs" [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] close(10) = -1 EBADF (Bad file descriptor) [pid 5390] close(27 [pid 5050] getdents64(4, [pid 5391] close(11 [pid 5051] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] <... close resumed>) = 0 [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] close(6 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] close(12 [pid 5051] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5392] close(7 [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] close(13 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5392] close(8 [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] close(28 [pid 5051] newfstatat(3, "", [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] close(14 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5392] close(9 [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] close(29 [pid 5391] close(15 [pid 5390] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5390] exit_group(0 [pid 5053] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] getdents64(4, [pid 5392] close(10 [pid 5391] close(16 [pid 5390] <... exit_group resumed>) = ? [pid 5051] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5392] close(11 [pid 5391] close(17 [pid 5053] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./54/binderfs", [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5391] close(18 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] newfstatat(AT_FDCWD, "./53/file0", [pid 5050] close(4 [pid 5392] close(12 [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./54/binderfs" [pid 5391] close(19 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... close resumed>) = 0 [pid 5050] rmdir("./50/file0" [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5053] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] close(13 [pid 5391] close(20 [pid 5051] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5392] close(14 [pid 5391] close(21 [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5392] close(15 [pid 5391] close(22 [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5392] close(16 [pid 5391] close(23 [pid 5053] newfstatat(4, "", [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] close(17 [pid 5391] close(24 [pid 5051] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5392] close(18 [pid 5391] close(25 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5051] newfstatat(AT_FDCWD, "./54/file0", [pid 5392] close(19 [pid 5391] close(26 [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5392] close(20 [pid 5050] getdents64(3, [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5392] close(21 [pid 5391] close(27 [pid 5390] +++ exited with 0 +++ [pid 5051] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] close(3 [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... close resumed>) = 0 [pid 5392] close(22 [pid 5391] close(28 [pid 5051] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] rmdir("./50" [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5051] <... openat resumed>) = 4 [pid 5392] close(23 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] newfstatat(4, "", [pid 5049] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5392] close(24 [pid 5391] close(29 [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(4, [pid 5050] mkdir("./51", 0777 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./53/file0" [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5392] close(25 [pid 5391] exit_group(0 [pid 5051] getdents64(4, [pid 5050] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5391] <... exit_group resumed>) = ? [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] close(4 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5051] <... close resumed>) = 0 [pid 5051] rmdir("./54/file0" [pid 5053] getdents64(3, [pid 5050] <... openat resumed>) = 3 [pid 5050] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5050] close(3 [pid 5392] close(26 [pid 5050] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... rmdir resumed>) = 0 [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5393 attached [pid 5393] set_robust_list(0x5555566e0760, 24) = 0 [pid 5393] chdir("./51" [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 53 [pid 5053] close(3 [pid 5051] getdents64(3, [pid 5049] newfstatat(3, "", [pid 5393] <... chdir resumed>) = 0 [pid 5393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5393] setpgid(0, 0) = 0 [pid 5393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5392] close(27 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... close resumed>) = 0 [pid 5049] getdents64(3, [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./53" [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5392] close(28 [pid 5393] <... openat resumed>) = 3 [pid 5393] write(3, "1000", 4) = 4 [pid 5393] close(3) = 0 [pid 5393] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5393] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5392] close(29 [pid 5051] close(3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5392] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5393] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] <... close resumed>) = 0 [pid 5049] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5393] <... socket resumed>) = 4 [pid 5392] exit_group(0 [pid 5051] rmdir("./54" [pid 5392] <... exit_group resumed>) = ? [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5393] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5393] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5393] memfd_create("syzkaller", 0) = 5 [pid 5393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5393] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5393] mkdir("./file0", 000) = 0 [pid 5392] +++ exited with 0 +++ [pid 5393] symlink(NULL, NULL [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] newfstatat(AT_FDCWD, "./53/binderfs", [pid 5053] mkdir("./54", 0777 [pid 5393] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5393] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5393] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5393] close(3) = 0 [pid 5393] close(4) = 0 [pid 5393] close(5) = 0 [pid 5393] close(6) = -1 EBADF (Bad file descriptor) [pid 5393] close(7) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5052] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] unlink("./53/binderfs" [pid 5393] close(8) = -1 EBADF (Bad file descriptor) [pid 5393] close(9) = -1 EBADF (Bad file descriptor) [pid 5393] close(10) = -1 EBADF (Bad file descriptor) [pid 5393] close(11) = -1 EBADF (Bad file descriptor) [pid 5393] close(12) = -1 EBADF (Bad file descriptor) [pid 5393] close(13) = -1 EBADF (Bad file descriptor) [pid 5393] close(14) = -1 EBADF (Bad file descriptor) [pid 5393] close(15) = -1 EBADF (Bad file descriptor) [pid 5393] close(16) = -1 EBADF (Bad file descriptor) [pid 5393] close(17 [pid 5391] +++ exited with 0 +++ [pid 5393] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5393] close(18) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5393] close(19 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5393] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5393] close(20) = -1 EBADF (Bad file descriptor) [pid 5393] close(21) = -1 EBADF (Bad file descriptor) [pid 5393] close(22) = -1 EBADF (Bad file descriptor) [pid 5393] close(23) = -1 EBADF (Bad file descriptor) [pid 5393] close(24) = -1 EBADF (Bad file descriptor) [pid 5393] close(25) = -1 EBADF (Bad file descriptor) [pid 5393] close(26) = -1 EBADF (Bad file descriptor) [pid 5393] close(27) = -1 EBADF (Bad file descriptor) [pid 5393] close(28) = -1 EBADF (Bad file descriptor) [pid 5393] close(29) = -1 EBADF (Bad file descriptor) [pid 5393] exit_group(0) = ? [pid 5393] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5050] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] mkdir("./55", 0777 [pid 5050] unlink("./51/binderfs" [pid 5053] <... openat resumed>) = 3 [pid 5051] <... mkdir resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5048] <... restart_syscall resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... openat resumed>) = 3 [pid 5053] close(3 [pid 5051] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5053] <... close resumed>) = 0 [pid 5051] close(3 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5049] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(3, [pid 5049] newfstatat(AT_FDCWD, "./53/file0", [pid 5048] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] newfstatat(AT_FDCWD, "./51/file0", [pid 5048] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... openat resumed>) = 4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(4, "", [pid 5048] newfstatat(3, "", [pid 5052] newfstatat(AT_FDCWD, "./59/binderfs", [pid 5050] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] newfstatat(4, "", [pid 5049] getdents64(4, ./strace-static-x86_64: Process 5394 attached [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 56 [pid 5052] unlink("./59/binderfs" [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, ./strace-static-x86_64: Process 5395 attached [pid 5394] set_robust_list(0x5555566e0760, 24 [pid 5050] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... unlink resumed>) = 0 [pid 5395] set_robust_list(0x5555566e0760, 24 [pid 5394] <... set_robust_list resumed>) = 0 [pid 5052] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5395] <... set_robust_list resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5395] chdir("./55" [pid 5394] chdir("./54" [pid 5052] <... umount2 resumed>) = 0 [pid 5050] close(4 [pid 5049] getdents64(4, [pid 5048] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5394] <... chdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 57 [pid 5050] rmdir("./51/file0" [pid 5049] close(4 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5395] <... chdir resumed>) = 0 [pid 5394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] newfstatat(AT_FDCWD, "./59/file0", [pid 5050] <... rmdir resumed>) = 0 [pid 5395] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5394] <... prctl resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./52/binderfs", [pid 5052] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] rmdir("./53/file0" [pid 5050] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] close(3) = 0 [pid 5050] rmdir("./51" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] unlink("./52/binderfs" [pid 5052] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5395] <... prctl resumed>) = 0 [pid 5394] setpgid(0, 0 [pid 5050] mkdir("./52", 0777 [pid 5048] <... unlink resumed>) = 0 [pid 5394] <... setpgid resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(4, "", [pid 5049] close(3 [pid 5395] setpgid(0, 0 [pid 5394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... close resumed>) = 0 [pid 5395] <... setpgid resumed>) = 0 [pid 5394] <... openat resumed>) = 3 [pid 5052] getdents64(4, [pid 5049] rmdir("./53" [pid 5048] <... umount2 resumed>) = 0 [pid 5395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5394] write(3, "1000", 4 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5395] <... openat resumed>) = 3 [pid 5394] <... write resumed>) = 4 [pid 5052] getdents64(4, [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... rmdir resumed>) = 0 [pid 5048] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5394] close(3 [pid 5052] close(4 [pid 5050] <... openat resumed>) = 3 [pid 5049] mkdir("./54", 0777 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5394] <... close resumed>) = 0 [pid 5052] rmdir("./59/file0" [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] newfstatat(AT_FDCWD, "./52/file0", [pid 5394] symlink("/dev/binderfs", "./binderfs" [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5395] write(3, "1000", 4 [pid 5394] <... symlink resumed>) = 0 [pid 5050] close(3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5395] <... write resumed>) = 4 [pid 5394] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5050] <... close resumed>) = 0 [pid 5395] close(3 [pid 5394] <... socket resumed>) = 3 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5394] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5395] <... close resumed>) = 0 [pid 5394] <... socket resumed>) = 4 [pid 5052] getdents64(3, [pid 5049] <... mkdir resumed>) = 0 [pid 5395] symlink("/dev/binderfs", "./binderfs" [pid 5394] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5395] <... symlink resumed>) = 0 [pid 5394] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] close(3 [pid 5395] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5394] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5394] memfd_create("syzkaller", 0 [pid 5052] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5394] <... memfd_create resumed>) = 5 [pid 5052] rmdir("./59" [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5395] <... socket resumed>) = 3 [pid 5394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... openat resumed>) = 4 [pid 5395] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5394] <... mmap resumed>) = 0x7f1263f98000 [pid 5395] <... socket resumed>) = 4 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 54 [pid 5048] newfstatat(4, "", [pid 5394] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5395] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5394] mkdir("./file0", 000 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5395] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] mkdir("./60", 0777 [pid 5049] close(3./strace-static-x86_64: Process 5396 attached [pid 5395] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5394] <... mkdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5395] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5395] memfd_create("syzkaller", 0 [pid 5394] symlink(NULL, NULL [pid 5395] <... memfd_create resumed>) = 5 [pid 5394] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5394] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5395] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5395] mkdir("./file0", 000 [pid 5394] <... mount resumed>) = 0 [pid 5395] <... mkdir resumed>) = 0 [pid 5394] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5394] close(3) = 0 [pid 5394] close(4) = 0 [pid 5395] symlink(NULL, NULL [pid 5394] close(5 [pid 5395] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5394] <... close resumed>) = 0 [pid 5395] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5394] close(6) = -1 EBADF (Bad file descriptor) [pid 5394] close(7) = -1 EBADF (Bad file descriptor) [pid 5394] close(8) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5396] set_robust_list(0x5555566e0760, 24 [pid 5394] close(9 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5395] <... mount resumed>) = 0 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5395] open(NULL, O_RDONLY [pid 5394] close(10 [pid 5395] <... open resumed>) = -1 EFAULT (Bad address) [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(11 [pid 5395] close(3 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5048] close(4 [pid 5396] <... set_robust_list resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5394] close(12 [pid 5395] <... close resumed>) = 0 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5395] close(4 [pid 5394] close(13 [pid 5395] <... close resumed>) = 0 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(14) = -1 EBADF (Bad file descriptor) [pid 5395] close(5 [pid 5394] close(15 [pid 5395] <... close resumed>) = 0 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(16) = -1 EBADF (Bad file descriptor) [pid 5395] close(6 [pid 5394] close(17 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5395] close(7 [pid 5394] close(18 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] chdir("./52" [pid 5395] close(8 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5397 attached [pid 5396] <... chdir resumed>) = 0 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(19 [pid 5048] <... close resumed>) = 0 [pid 5397] set_robust_list(0x5555566e0760, 24 [pid 5395] close(9 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 56 [pid 5048] rmdir("./52/file0" [pid 5396] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5397] <... set_robust_list resumed>) = 0 [pid 5396] <... prctl resumed>) = 0 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(20 [pid 5397] chdir("./54" [pid 5395] close(10 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... rmdir resumed>) = 0 [pid 5396] setpgid(0, 0 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(21 [pid 5397] <... chdir resumed>) = 0 [pid 5395] close(11 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(22 [pid 5396] <... setpgid resumed>) = 0 [pid 5397] <... prctl resumed>) = 0 [pid 5395] close(12 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5048] getdents64(3, [pid 5396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5397] setpgid(0, 0 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(23 [pid 5397] <... setpgid resumed>) = 0 [pid 5396] <... openat resumed>) = 3 [pid 5395] close(13 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5396] write(3, "1000", 4 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(24 [pid 5052] <... openat resumed>) = 3 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5396] <... write resumed>) = 4 [pid 5395] close(14 [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5397] <... openat resumed>) = 3 [pid 5396] close(3 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] close(25 [pid 5048] close(3 [pid 5396] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] symlink("/dev/binderfs", "./binderfs" [pid 5048] <... close resumed>) = 0 [pid 5052] close(3 [pid 5394] close(26) = -1 EBADF (Bad file descriptor) [pid 5395] close(15 [pid 5394] close(27 [pid 5396] <... symlink resumed>) = 0 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5048] rmdir("./52" [pid 5395] close(16 [pid 5394] close(28 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5397] write(3, "1000", 4 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5397] <... write resumed>) = 4 [pid 5395] close(17 [pid 5394] close(29 [pid 5397] close(3 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5394] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5397] <... close resumed>) = 0 [pid 5395] close(18 [pid 5394] exit_group(0 [pid 5048] <... rmdir resumed>) = 0 [pid 5397] symlink("/dev/binderfs", "./binderfs" [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5397] <... symlink resumed>) = 0 [pid 5395] close(19 [pid 5394] <... exit_group resumed>) = ? [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5395] close(20 [pid 5048] mkdir("./53", 0777./strace-static-x86_64: Process 5398 attached [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5395] close(21 [pid 5397] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5395] close(22 [pid 5397] <... socket resumed>) = 3 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5395] close(23 [pid 5398] set_robust_list(0x5555566e0760, 24 [pid 5396] <... socket resumed>) = 3 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 62 [pid 5048] <... mkdir resumed>) = 0 [pid 5398] <... set_robust_list resumed>) = 0 [pid 5397] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5395] close(24 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5398] chdir("./60" [pid 5397] <... socket resumed>) = 4 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] <... chdir resumed>) = 0 [pid 5397] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5396] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5395] close(25 [pid 5048] <... openat resumed>) = 3 [pid 5398] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5397] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5398] <... prctl resumed>) = 0 [pid 5397] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5395] close(26 [pid 5394] +++ exited with 0 +++ [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5398] setpgid(0, 0 [pid 5397] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5396] <... socket resumed>) = 4 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] close(3 [pid 5398] <... setpgid resumed>) = 0 [pid 5397] memfd_create("syzkaller", 0 [pid 5395] close(27 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5397] <... memfd_create resumed>) = 5 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5396] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] <... close resumed>) = 0 [pid 5397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5396] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5395] close(28 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5397] <... mmap resumed>) = 0x7f1263f98000 [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5395] close(29 [pid 5397] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5395] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5397] mkdir("./file0", 000 [pid 5395] exit_group(0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5397] <... mkdir resumed>) = 0 [pid 5395] <... exit_group resumed>) = ? [pid 5398] <... openat resumed>) = 3 [pid 5396] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5396] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5396] memfd_create("syzkaller", 0 [pid 5053] <... openat resumed>) = 3 [pid 5053] newfstatat(3, "", ./strace-static-x86_64: Process 5399 attached [pid 5398] write(3, "1000", 4 [pid 5397] symlink(NULL, NULL [pid 5396] <... memfd_create resumed>) = 5 [pid 5395] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5399] set_robust_list(0x5555566e0760, 24 [pid 5397] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] getdents64(3, [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5399] <... set_robust_list resumed>) = 0 [pid 5397] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5399] chdir("./53" [pid 5051] <... restart_syscall resumed>) = 0 [pid 5399] <... chdir resumed>) = 0 [pid 5397] <... mount resumed>) = 0 [pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5399] <... prctl resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5399] setpgid(0, 0 [pid 5053] newfstatat(AT_FDCWD, "./54/binderfs", [pid 5051] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5399] <... setpgid resumed>) = 0 [pid 5397] open(NULL, O_RDONLY [pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5397] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5053] unlink("./54/binderfs" [pid 5399] <... openat resumed>) = 3 [pid 5397] close(3 [pid 5053] <... unlink resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5397] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5399] write(3, "1000", 4 [pid 5397] close(4) = 0 [pid 5051] getdents64(3, [pid 5399] <... write resumed>) = 4 [pid 5397] close(5 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5399] close(3 [pid 5053] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5399] <... close resumed>) = 0 [pid 5397] <... close resumed>) = 0 [pid 5399] symlink("/dev/binderfs", "./binderfs" [pid 5397] close(6 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5399] <... symlink resumed>) = 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5397] close(7 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5399] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./55/binderfs", [pid 5399] <... socket resumed>) = 3 [pid 5397] close(8 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5398] <... write resumed>) = 4 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 55 [pid 5399] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5397] close(9 [pid 5053] newfstatat(AT_FDCWD, "./54/file0", [pid 5398] close(3 [pid 5396] <... mmap resumed>) = 0x7f1263f98000 [pid 5399] <... socket resumed>) = 4 [pid 5398] <... close resumed>) = 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5399] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5398] symlink("/dev/binderfs", "./binderfs" [pid 5397] close(10 [pid 5053] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] unlink("./55/binderfs" [pid 5399] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5398] <... symlink resumed>) = 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] mkdir("./file0", 000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5399] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5397] close(11 [pid 5053] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5399] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5399] memfd_create("syzkaller", 0 [pid 5398] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5397] close(12 [pid 5396] <... mkdir resumed>) = 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5051] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5399] <... memfd_create resumed>) = 5 [pid 5398] <... socket resumed>) = 3 [pid 5397] close(13 [pid 5396] symlink(NULL, NULL [pid 5051] <... umount2 resumed>) = 0 [pid 5399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5398] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5397] close(14 [pid 5396] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5399] <... mmap resumed>) = 0x7f1263f98000 [pid 5398] <... socket resumed>) = 4 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5397] close(15 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5396] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5399] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5398] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5399] mkdir("./file0", 000 [pid 5397] close(16 [pid 5396] <... mount resumed>) = 0 [pid 5053] getdents64(4, [pid 5398] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] newfstatat(AT_FDCWD, "./55/file0", [pid 5399] <... mkdir resumed>) = 0 [pid 5398] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] open(NULL, O_RDONLY [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5398] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5396] <... open resumed>) = -1 EFAULT (Bad address) [pid 5397] close(17) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5398] memfd_create("syzkaller", 0 [pid 5397] close(18 [pid 5396] close(3 [pid 5053] <... close resumed>) = 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./54/file0" [pid 5051] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5399] symlink(NULL, NULL [pid 5397] close(19 [pid 5396] <... close resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5399] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] close(4 [pid 5397] close(20 [pid 5396] <... close resumed>) = 0 [pid 5396] close(5 [pid 5399] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5399] <... mount resumed>) = 0 [pid 5397] close(21 [pid 5053] getdents64(3, [pid 5051] <... openat resumed>) = 4 [pid 5398] <... memfd_create resumed>) = 5 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] newfstatat(4, "", [pid 5397] close(22 [pid 5053] close(3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5399] open(NULL, O_RDONLY [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(4, [pid 5399] <... open resumed>) = -1 EFAULT (Bad address) [pid 5397] close(23 [pid 5053] rmdir("./54" [pid 5398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5399] close(3 [pid 5398] <... mmap resumed>) = 0x7f1263f98000 [pid 5397] close(24 [pid 5396] close(6 [pid 5053] <... rmdir resumed>) = 0 [pid 5399] <... close resumed>) = 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5397] close(25) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5397] close(26 [pid 5051] close(4 [pid 5399] close(4 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5399] <... close resumed>) = 0 [pid 5398] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5397] close(27 [pid 5051] rmdir("./55/file0" [pid 5399] close(5 [pid 5398] mkdir("./file0", 000 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./55", 0777 [pid 5051] <... rmdir resumed>) = 0 [pid 5399] <... close resumed>) = 0 [pid 5397] close(28 [pid 5399] close(6 [pid 5398] <... mkdir resumed>) = 0 [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] close(7 [pid 5053] <... mkdir resumed>) = 0 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] symlink(NULL, NULL [pid 5397] close(29 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5397] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] close(8 [pid 5399] close(7 [pid 5398] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5397] exit_group(0 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5399] close(8 [pid 5397] <... exit_group resumed>) = ? [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5397] +++ exited with 0 +++ [pid 5396] close(9 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] close(3 [pid 5399] close(9 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5051] <... close resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5398] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] close(10 [pid 5399] close(10 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] rmdir("./55" [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] close(11 [pid 5398] <... mount resumed>) = 0 [pid 5396] close(11 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] open(NULL, O_RDONLY [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5399] close(12 [pid 5398] <... open resumed>) = -1 EFAULT (Bad address) [pid 5396] close(12 [pid 5053] <... close resumed>) = 0 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(3 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5399] close(13 [pid 5398] <... close resumed>) = 0 [pid 5396] close(13 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(4 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./56", 0777 [pid 5399] close(14 [pid 5398] <... close resumed>) = 0 [pid 5396] close(14 [pid 5049] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] close(15) = -1 EBADF (Bad file descriptor) [pid 5396] close(16 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] close(15) = -1 EBADF (Bad file descriptor) [pid 5396] close(17 [pid 5049] <... openat resumed>) = 3 [pid 5399] close(16 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] close(18 [pid 5049] newfstatat(3, "", [pid 5399] close(17 [pid 5398] close(5 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5396] close(19 [pid 5399] close(18 [pid 5398] <... close resumed>) = 0 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5400 attached [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(6 [pid 5396] close(20 [pid 5049] getdents64(3, [pid 5399] close(19 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] set_robust_list(0x5555566e0760, 24 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(7 [pid 5396] close(21 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 57 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5400] <... set_robust_list resumed>) = 0 [pid 5399] close(20 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] close(22 [pid 5400] chdir("./55" [pid 5399] close(21 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(8 [pid 5396] close(23 [pid 5049] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] <... chdir resumed>) = 0 [pid 5399] close(22 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5400] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(9 [pid 5396] close(24 [pid 5051] close(3 [pid 5400] <... prctl resumed>) = 0 [pid 5399] close(23 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5400] setpgid(0, 0 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(10 [pid 5396] close(25 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5400] <... setpgid resumed>) = 0 [pid 5399] close(24 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./54/binderfs", [pid 5398] close(11 [pid 5396] close(26) = -1 EBADF (Bad file descriptor) [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(12 [pid 5396] close(27 [pid 5399] close(25 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(13 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./54/binderfs" [pid 5398] close(14 [pid 5400] <... openat resumed>) = 3 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5399] close(26 [pid 5398] close(15 [pid 5396] close(28 [pid 5049] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] write(3, "1000", 4 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5401 attached [pid 5400] <... write resumed>) = 4 [pid 5399] close(27 [pid 5398] close(16 [pid 5396] close(29 [pid 5049] <... umount2 resumed>) = 0 [pid 5400] close(3 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 58 [pid 5400] <... close resumed>) = 0 [pid 5399] close(28 [pid 5398] close(17 [pid 5400] symlink("/dev/binderfs", "./binderfs" [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] set_robust_list(0x5555566e0760, 24 [pid 5400] <... symlink resumed>) = 0 [pid 5399] close(29 [pid 5398] close(18 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] exit_group(0 [pid 5398] close(19 [pid 5049] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5399] <... exit_group resumed>) = ? [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... set_robust_list resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5400] <... socket resumed>) = 3 [pid 5399] +++ exited with 0 +++ [pid 5398] close(20 [pid 5396] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./54/file0", [pid 5401] chdir("./56" [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5398] close(21 [pid 5396] exit_group(0 [pid 5401] <... chdir resumed>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5400] <... socket resumed>) = 4 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5401] <... prctl resumed>) = 0 [pid 5400] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5398] close(22 [pid 5401] setpgid(0, 0 [pid 5400] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... restart_syscall resumed>) = 0 [pid 5400] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5398] close(23 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5400] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5398] close(24) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] <... setpgid resumed>) = 0 [pid 5398] close(25 [pid 5400] memfd_create("syzkaller", 0) = 5 [pid 5400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... mmap resumed>) = 0x7f1263f98000 [pid 5398] close(26 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5400] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5398] close(27 [pid 5400] mkdir("./file0", 000 [pid 5048] <... openat resumed>) = 3 [pid 5400] <... mkdir resumed>) = 0 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(3, "", [pid 5396] <... exit_group resumed>) = ? [pid 5398] close(28 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5398] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5398] close(29) = -1 EBADF (Bad file descriptor) [pid 5400] symlink(NULL, NULL [pid 5049] <... openat resumed>) = 4 [pid 5400] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5398] exit_group(0 [pid 5049] newfstatat(4, "", [pid 5398] <... exit_group resumed>) = ? [pid 5400] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5400] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5400] close(3) = 0 [pid 5400] close(4 [pid 5398] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5400] <... close resumed>) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5400] close(5) = 0 [pid 5052] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5400] close(6) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5400] close(7 [pid 5052] <... openat resumed>) = 3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5400] close(8 [pid 5052] newfstatat(3, "", [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5401] <... openat resumed>) = 3 [pid 5400] close(9 [pid 5049] getdents64(4, [pid 5048] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5400] close(10 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5401] write(3, "1000", 4 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(4 [pid 5048] newfstatat(AT_FDCWD, "./53/binderfs", [pid 5401] <... write resumed>) = 4 [pid 5400] close(11 [pid 5396] +++ exited with 0 +++ [pid 5052] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... close resumed>) = 0 [pid 5401] close(3 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5401] <... close resumed>) = 0 [pid 5049] rmdir("./54/file0" [pid 5048] unlink("./53/binderfs" [pid 5401] symlink("/dev/binderfs", "./binderfs" [pid 5400] close(12 [pid 5052] newfstatat(AT_FDCWD, "./60/binderfs", [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5401] <... symlink resumed>) = 0 [pid 5400] close(13 [pid 5052] unlink("./60/binderfs" [pid 5048] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5400] close(14 [pid 5050] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] close(15 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = 0 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] <... socket resumed>) = 3 [pid 5400] close(16 [pid 5050] <... openat resumed>) = 3 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(3, "", [pid 5400] close(17 [pid 5401] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] <... rmdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] <... socket resumed>) = 4 [pid 5401] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5400] close(18 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(3, [pid 5049] getdents64(3, [pid 5048] newfstatat(AT_FDCWD, "./53/file0", [pid 5401] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5400] close(19 [pid 5052] newfstatat(AT_FDCWD, "./60/file0", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5401] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5400] close(20 [pid 5050] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] memfd_create("syzkaller", 0 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... memfd_create resumed>) = 5 [pid 5400] close(21 [pid 5052] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] close(3 [pid 5048] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./52/binderfs", [pid 5400] close(22 [pid 5049] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5401] <... mmap resumed>) = 0x7f1263f98000 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] rmdir("./54" [pid 5048] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5401] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5400] close(23 [pid 5052] <... openat resumed>) = 4 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] unlink("./52/binderfs" [pid 5400] close(24 [pid 5401] mkdir("./file0", 000 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5050] <... unlink resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5400] close(25 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] close(26) = -1 EBADF (Bad file descriptor) [pid 5400] close(27) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5400] close(28 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] close(29 [pid 5052] getdents64(4, [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5401] <... mkdir resumed>) = 0 [pid 5400] exit_group(0 [pid 5052] close(4 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] mkdir("./55", 0777 [pid 5048] newfstatat(4, "", [pid 5052] <... close resumed>) = 0 [pid 5400] <... exit_group resumed>) = ? [pid 5052] rmdir("./60/file0" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5401] symlink(NULL, NULL [pid 5049] <... mkdir resumed>) = 0 [pid 5050] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./52/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5401] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5048] getdents64(4, [pid 5050] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5401] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] getdents64(4, [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] getdents64(4, [pid 5401] <... mount resumed>) = 0 [pid 5400] +++ exited with 0 +++ [pid 5052] getdents64(3, [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... openat resumed>) = 3 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5401] open(NULL, O_RDONLY [pid 5048] close(4) = 0 [pid 5052] close(3 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] close(4 [pid 5052] rmdir("./60" [pid 5050] <... close resumed>) = 0 [pid 5401] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... rmdir resumed>) = 0 [pid 5050] rmdir("./52/file0" [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] rmdir("./53/file0" [pid 5401] close(3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5401] <... close resumed>) = 0 [pid 5050] getdents64(3, [pid 5049] close(3 [pid 5048] getdents64(3, [pid 5053] <... openat resumed>) = 3 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] newfstatat(3, "", [pid 5050] close(3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... close resumed>) = 0 [pid 5053] getdents64(3, [pid 5050] rmdir("./52" [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5401] close(4 [pid 5049] <... close resumed>) = 0 [pid 5053] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] mkdir("./61", 0777) = 0 [pid 5050] mkdir("./53", 0777 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... mkdir resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./55/binderfs", [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5401] <... close resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] close(3 [pid 5401] close(5 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] <... openat resumed>) = 3 [pid 5048] <... close resumed>) = 0 [pid 5401] <... close resumed>) = 0 [pid 5048] rmdir("./53" [pid 5401] close(6 [pid 5053] unlink("./55/binderfs" [pid 5052] <... openat resumed>) = 3 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5402 attached [pid 5401] close(7 [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] close(3 [pid 5048] mkdir("./54", 0777 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 57 [pid 5402] set_robust_list(0x5555566e0760, 24 [pid 5401] close(8 [pid 5402] <... set_robust_list resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(3 [pid 5050] <... close resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5402] chdir("./55" [pid 5401] close(9 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5402] <... chdir resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5401] close(10 [pid 5048] <... openat resumed>) = 3 [pid 5402] <... prctl resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] setpgid(0, 0 [pid 5401] close(11 [pid 5053] <... umount2 resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5402] <... setpgid resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5401] close(12 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 55 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] close(13 [pid 5053] newfstatat(AT_FDCWD, "./55/file0", [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5401] close(14) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... close resumed>) = 0 [pid 5402] <... openat resumed>) = 3 [pid 5401] close(15 [pid 5053] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5402] write(3, "1000", 4 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5401] close(16 [pid 5053] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5402] <... write resumed>) = 4 [pid 5401] close(17 [pid 5053] newfstatat(4, "", ./strace-static-x86_64: Process 5403 attached [pid 5402] close(3 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 63 [pid 5053] getdents64(4, [pid 5403] set_robust_list(0x5555566e0760, 24 [pid 5401] close(18 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5403] <... set_robust_list resumed>) = 0 [pid 5053] getdents64(4, [pid 5403] chdir("./53" [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5404 attached [pid 5403] <... chdir resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4) = 0 [pid 5404] set_robust_list(0x5555566e0760, 24 [pid 5402] <... close resumed>) = 0 [pid 5401] close(19 [pid 5053] rmdir("./55/file0" [pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... rmdir resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5405 attached [pid 5404] <... set_robust_list resumed>) = 0 [pid 5403] <... prctl resumed>) = 0 [pid 5401] close(20 [pid 5053] getdents64(3, [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 56 [pid 5403] setpgid(0, 0 [pid 5402] <... symlink resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5405] set_robust_list(0x5555566e0760, 24 [pid 5404] chdir("./61" [pid 5403] <... setpgid resumed>) = 0 [pid 5402] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5405] <... set_robust_list resumed>) = 0 [pid 5404] <... chdir resumed>) = 0 [pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5402] <... socket resumed>) = 3 [pid 5401] close(21 [pid 5404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5402] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... socket resumed>) = 4 [pid 5401] close(22) = -1 EBADF (Bad file descriptor) [pid 5404] setpgid(0, 0 [pid 5402] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5401] close(23 [pid 5402] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] chdir("./54" [pid 5402] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5401] close(24 [pid 5402] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... chdir resumed>) = 0 [pid 5403] <... openat resumed>) = 3 [pid 5402] memfd_create("syzkaller", 0 [pid 5401] close(25 [pid 5405] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] close(26) = -1 EBADF (Bad file descriptor) [pid 5402] <... memfd_create resumed>) = 5 [pid 5401] close(27 [pid 5405] <... prctl resumed>) = 0 [pid 5404] <... setpgid resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] setpgid(0, 0 [pid 5404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5403] write(3, "1000", 4 [pid 5402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5401] close(28 [pid 5403] <... write resumed>) = 4 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] close(29) = -1 EBADF (Bad file descriptor) [pid 5405] <... setpgid resumed>) = 0 [pid 5403] close(3 [pid 5402] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... close resumed>) = 0 [pid 5403] <... close resumed>) = 0 [pid 5053] rmdir("./55" [pid 5405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5403] symlink("/dev/binderfs", "./binderfs" [pid 5053] <... rmdir resumed>) = 0 [pid 5403] <... symlink resumed>) = 0 [pid 5053] mkdir("./56", 0777 [pid 5405] <... openat resumed>) = 3 [pid 5402] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5401] exit_group(0 [pid 5053] <... mkdir resumed>) = 0 [pid 5403] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5404] <... openat resumed>) = 3 [pid 5403] <... socket resumed>) = 3 [pid 5404] write(3, "1000", 4 [pid 5403] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5402] mkdir("./file0", 000 [pid 5401] <... exit_group resumed>) = ? [pid 5404] <... write resumed>) = 4 [pid 5403] <... socket resumed>) = 4 [pid 5402] <... mkdir resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5404] close(3 [pid 5403] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5405] write(3, "1000", 4 [pid 5403] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5403] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5405] <... write resumed>) = 4 [pid 5404] <... close resumed>) = 0 [pid 5403] memfd_create("syzkaller", 0 [pid 5053] close(3 [pid 5405] close(3 [pid 5404] symlink("/dev/binderfs", "./binderfs" [pid 5403] <... memfd_create resumed>) = 5 [pid 5053] <... close resumed>) = 0 [pid 5403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5403] <... mmap resumed>) = 0x7f1263f98000 [pid 5403] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5403] mkdir("./file0", 000 [pid 5405] <... close resumed>) = 0 [pid 5404] <... symlink resumed>) = 0 [pid 5403] <... mkdir resumed>) = 0 [pid 5402] symlink(NULL, NULL [pid 5401] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 58 ./strace-static-x86_64: Process 5406 attached [pid 5403] symlink(NULL, NULL [pid 5406] set_robust_list(0x5555566e0760, 24 [pid 5403] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5406] <... set_robust_list resumed>) = 0 [pid 5403] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5406] chdir("./56" [pid 5403] <... mount resumed>) = 0 [pid 5405] symlink("/dev/binderfs", "./binderfs" [pid 5404] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5402] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5402] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] <... socket resumed>) = 3 [pid 5406] <... chdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5405] <... symlink resumed>) = 0 [pid 5403] open(NULL, O_RDONLY [pid 5051] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5403] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] <... openat resumed>) = 3 [pid 5405] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5403] close(3 [pid 5402] <... mount resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5406] <... prctl resumed>) = 0 [pid 5403] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5406] setpgid(0, 0 [pid 5405] <... socket resumed>) = 3 [pid 5403] close(4 [pid 5051] getdents64(3, [pid 5406] <... setpgid resumed>) = 0 [pid 5405] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5404] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5403] <... close resumed>) = 0 [pid 5402] open(NULL, O_RDONLY [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5405] <... socket resumed>) = 4 [pid 5403] close(5 [pid 5051] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] <... openat resumed>) = 3 [pid 5405] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5404] <... socket resumed>) = 4 [pid 5403] <... close resumed>) = 0 [pid 5402] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5405] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5404] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5403] close(6 [pid 5402] close(3 [pid 5051] newfstatat(AT_FDCWD, "./56/binderfs", [pid 5406] write(3, "1000", 4 [pid 5405] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5406] <... write resumed>) = 4 [pid 5403] close(7 [pid 5051] unlink("./56/binderfs" [pid 5406] close(3 [pid 5405] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5404] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5406] <... close resumed>) = 0 [pid 5403] close(8 [pid 5051] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] symlink("/dev/binderfs", "./binderfs" [pid 5405] memfd_create("syzkaller", 0 [pid 5404] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(4 [pid 5051] <... umount2 resumed>) = 0 [pid 5405] <... memfd_create resumed>) = 5 [pid 5404] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5403] close(9 [pid 5406] <... symlink resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = 0 [pid 5404] memfd_create("syzkaller", 0 [pid 5403] close(10 [pid 5406] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(5 [pid 5051] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] <... socket resumed>) = 3 [pid 5405] <... mmap resumed>) = 0x7f1263f98000 [pid 5403] close(11 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] <... memfd_create resumed>) = 5 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = 0 [pid 5405] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5406] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5403] close(12 [pid 5402] close(6 [pid 5405] mkdir("./file0", 000 [pid 5051] newfstatat(AT_FDCWD, "./56/file0", [pid 5406] <... socket resumed>) = 4 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(13) = -1 EBADF (Bad file descriptor) [pid 5403] close(14 [pid 5406] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5403] close(15 [pid 5406] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5405] <... mkdir resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(7 [pid 5405] symlink(NULL, NULL [pid 5403] close(16 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(8 [pid 5406] memfd_create("syzkaller", 0 [pid 5404] <... mmap resumed>) = 0x7f1263f98000 [pid 5403] close(17 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5406] <... memfd_create resumed>) = 5 [pid 5405] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5405] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5404] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5403] close(18 [pid 5402] close(9 [pid 5051] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] <... mmap resumed>) = 0x7f1263f98000 [pid 5404] mkdir("./file0", 000 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5406] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5403] close(19 [pid 5051] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] mkdir("./file0", 000 [pid 5403] close(20 [pid 5404] <... mkdir resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... mount resumed>) = 0 [pid 5402] close(10) = -1 EBADF (Bad file descriptor) [pid 5403] close(21 [pid 5051] <... openat resumed>) = 4 [pid 5406] <... mkdir resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(11 [pid 5403] close(22 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(4, "", [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5403] close(23 [pid 5051] getdents64(4, [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(24 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5402] close(12 [pid 5405] open(NULL, O_RDONLY [pid 5404] symlink(NULL, NULL [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(25 [pid 5051] getdents64(4, [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5406] symlink(NULL, NULL [pid 5405] <... open resumed>) = -1 EFAULT (Bad address) [pid 5403] close(26 [pid 5051] close(4 [pid 5406] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5405] close(3 [pid 5404] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(13 [pid 5051] <... close resumed>) = 0 [pid 5406] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5403] close(27 [pid 5051] rmdir("./56/file0" [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(28 [pid 5051] <... rmdir resumed>) = 0 [pid 5404] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... mount resumed>) = 0 [pid 5405] <... close resumed>) = 0 [pid 5403] close(29 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] exit_group(0 [pid 5402] close(14 [pid 5051] getdents64(3, [pid 5404] <... mount resumed>) = 0 [pid 5406] open(NULL, O_RDONLY [pid 5405] close(4 [pid 5403] <... exit_group resumed>) = ? [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5406] <... open resumed>) = -1 EFAULT (Bad address) [pid 5405] <... close resumed>) = 0 [pid 5404] open(NULL, O_RDONLY [pid 5405] close(5 [pid 5402] close(15) = -1 EBADF (Bad file descriptor) [pid 5406] close(3 [pid 5404] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] close(3 [pid 5406] <... close resumed>) = 0 [pid 5405] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5405] close(6 [pid 5404] close(3 [pid 5402] close(16 [pid 5051] rmdir("./56" [pid 5406] close(4 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] <... close resumed>) = 0 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = 0 [pid 5405] close(7 [pid 5404] close(4 [pid 5403] +++ exited with 0 +++ [pid 5402] close(17 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5406] close(5 [pid 5405] close(8 [pid 5404] <... close resumed>) = 0 [pid 5402] close(18 [pid 5051] mkdir("./57", 0777 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(5 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] <... close resumed>) = 0 [pid 5402] close(19 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5406] close(6 [pid 5405] close(9 [pid 5404] <... close resumed>) = 0 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(6 [pid 5402] close(20 [pid 5050] <... openat resumed>) = 3 [pid 5406] close(7 [pid 5405] close(10 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(3, "", [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(21 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5406] close(8 [pid 5405] close(11 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(7 [pid 5402] close(22 [pid 5051] <... mkdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5406] close(9 [pid 5405] close(12 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(8 [pid 5402] close(23 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5406] close(10 [pid 5405] close(13 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5050] newfstatat(AT_FDCWD, "./53/binderfs", [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(9 [pid 5402] close(24 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5406] close(11 [pid 5405] close(14 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] unlink("./53/binderfs" [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(10 [pid 5402] close(25 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5406] close(12 [pid 5405] close(15 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5050] <... unlink resumed>) = 0 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(11 [pid 5402] close(26 [pid 5051] <... close resumed>) = 0 [pid 5050] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] close(13 [pid 5405] close(16 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(27 [pid 5405] close(17 [pid 5404] close(12 [pid 5406] close(14 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(28 [pid 5050] <... umount2 resumed>) = 0 [pid 5406] close(15 [pid 5405] close(18 [pid 5050] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(16 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./53/file0", [pid 5406] close(17 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(19 [pid 5402] close(29 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(13 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(20 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] exit_group(0 [pid 5050] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] close(18 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(14 [pid 5402] <... exit_group resumed>) = ? [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(21 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] +++ exited with 0 +++ [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5407 attached [pid 5406] close(19 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(15 [pid 5407] set_robust_list(0x5555566e0760, 24 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(22 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 59 [pid 5050] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5407] <... set_robust_list resumed>) = 0 [pid 5406] close(20 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(16 [pid 5407] chdir("./57" [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(23 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5406] close(21 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(17 [pid 5407] <... chdir resumed>) = 0 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5406] close(22 [pid 5407] <... prctl resumed>) = 0 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(24 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(4, "", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] setpgid(0, 0 [pid 5406] close(23 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(18 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5407] <... setpgid resumed>) = 0 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(25 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5406] close(24 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(19 [pid 5050] getdents64(4, [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(26 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(25 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(20 [pid 5049] newfstatat(3, "", [pid 5407] <... openat resumed>) = 3 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(27 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5406] close(26 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(21 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5407] write(3, "1000", 4 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(28 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5407] <... write resumed>) = 4 [pid 5406] close(27 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(22 [pid 5407] close(3 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(29 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(3, [pid 5407] <... close resumed>) = 0 [pid 5406] close(28 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] close(23 [pid 5407] symlink("/dev/binderfs", "./binderfs" [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] exit_group(0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5407] <... symlink resumed>) = 0 [pid 5406] close(29 [pid 5405] <... exit_group resumed>) = ? [pid 5404] close(24 [pid 5049] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] exit_group(0 [pid 5404] close(25 [pid 5050] rmdir("./53/file0" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5406] <... exit_group resumed>) = ? [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./55/binderfs", [pid 5407] <... socket resumed>) = 3 [pid 5404] close(26 [pid 5407] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5406] +++ exited with 0 +++ [pid 5405] +++ exited with 0 +++ [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5407] <... socket resumed>) = 4 [pid 5404] close(27 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] getdents64(3, [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5407] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] unlink("./55/binderfs" [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5407] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5404] close(28 [pid 5050] close(3 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5407] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5407] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5404] close(29 [pid 5053] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./53" [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] exit_group(0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] memfd_create("syzkaller", 0 [pid 5404] <... exit_group resumed>) = ? [pid 5053] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... umount2 resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5407] <... memfd_create resumed>) = 5 [pid 5404] +++ exited with 0 +++ [pid 5053] <... openat resumed>) = 3 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 3 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(3, "", [pid 5407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] newfstatat(3, "", [pid 5049] newfstatat(AT_FDCWD, "./55/file0", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5407] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] mkdir("./54", 0777 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] getdents64(3, [pid 5407] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5048] newfstatat(AT_FDCWD, "./54/binderfs", [pid 5049] newfstatat(4, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5407] mkdir("./file0", 000 [pid 5053] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] unlink("./54/binderfs" [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... unlink resumed>) = 0 [pid 5049] getdents64(4, [pid 5048] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... umount2 resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(3, "", [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] <... mkdir resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./56/binderfs", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] symlink(NULL, NULL [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] newfstatat(AT_FDCWD, "./54/file0", [pid 5407] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] getdents64(3, [pid 5049] close(4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5407] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5049] <... close resumed>) = 0 [pid 5407] <... mount resumed>) = 0 [pid 5050] close(3 [pid 5049] rmdir("./55/file0" [pid 5048] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] unlink("./56/binderfs" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] <... unlink resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5407] open(NULL, O_RDONLY [pid 5053] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] <... open resumed>) = -1 EFAULT (Bad address) [pid 5407] close(3 [pid 5049] getdents64(3, [pid 5407] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] close(3 [pid 5407] close(4 [pid 5053] <... umount2 resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5049] rmdir("./55" [pid 5407] <... close resumed>) = 0 [pid 5407] close(5 [pid 5049] <... rmdir resumed>) = 0 [pid 5407] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5407] close(6 [pid 5053] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./61/binderfs", [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] mkdir("./56", 0777 [pid 5053] newfstatat(AT_FDCWD, "./56/file0", [pid 5407] close(7 [pid 5052] unlink("./61/binderfs" [pid 5048] <... openat resumed>) = 4 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5407] close(8) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] close(9 [pid 5052] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] close(10 [pid 5053] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... umount2 resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(11 [pid 5052] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5408 attached [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5408] set_robust_list(0x5555566e0760, 24 [pid 5407] close(12 [pid 5053] newfstatat(4, "", [pid 5052] newfstatat(AT_FDCWD, "./61/file0", [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 56 [pid 5048] getdents64(4, [pid 5408] <... set_robust_list resumed>) = 0 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5407] close(13 [pid 5408] chdir("./54" [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5408] <... chdir resumed>) = 0 [pid 5407] close(14 [pid 5053] getdents64(4, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5048] close(4 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5407] close(15 [pid 5048] <... close resumed>) = 0 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] rmdir("./54/file0" [pid 5407] close(16) = -1 EBADF (Bad file descriptor) [pid 5407] close(17) = -1 EBADF (Bad file descriptor) [pid 5407] close(18) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5407] close(19) = -1 EBADF (Bad file descriptor) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5407] close(20 [pid 5049] close(3 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(21) = -1 EBADF (Bad file descriptor) [pid 5407] close(22) = -1 EBADF (Bad file descriptor) [pid 5407] close(23) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... close resumed>) = 0 [pid 5407] close(24 [pid 5052] <... openat resumed>) = 4 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] newfstatat(4, "", [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5407] close(25) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5407] close(26 [pid 5053] close(4 [pid 5052] getdents64(4, [pid 5048] getdents64(3, [pid 5408] <... prctl resumed>) = 0 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5408] setpgid(0, 0 [pid 5407] close(27 [pid 5053] rmdir("./56/file0" [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5408] <... setpgid resumed>) = 0 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5407] close(28 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] getdents64(4, [pid 5048] close(3 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] write(3, "1000", 4) = 4 [pid 5408] close(3) = 0 [pid 5408] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 58 ./strace-static-x86_64: Process 5409 attached [pid 5408] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5407] close(29 [pid 5053] getdents64(3, [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5408] <... socket resumed>) = 3 [pid 5408] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5408] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5408] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5409] set_robust_list(0x5555566e0760, 24 [pid 5408] memfd_create("syzkaller", 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5048] rmdir("./54" [pid 5408] <... memfd_create resumed>) = 5 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5407] exit_group(0 [pid 5052] <... close resumed>) = 0 [pid 5408] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5408] mkdir("./file0", 000) = 0 [pid 5407] <... exit_group resumed>) = ? [pid 5052] rmdir("./61/file0" [pid 5048] <... rmdir resumed>) = 0 [pid 5408] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5408] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5408] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5408] close(3) = 0 [pid 5408] close(4) = 0 [pid 5408] close(5) = 0 [pid 5408] close(6) = -1 EBADF (Bad file descriptor) [pid 5408] close(7 [pid 5407] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(8) = -1 EBADF (Bad file descriptor) [pid 5408] close(9) = -1 EBADF (Bad file descriptor) [pid 5408] close(10 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5409] <... set_robust_list resumed>) = 0 [pid 5053] close(3 [pid 5052] <... rmdir resumed>) = 0 [pid 5048] mkdir("./55", 0777 [pid 5051] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] chdir("./56" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5409] <... chdir resumed>) = 0 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./56" [pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] getdents64(3, [pid 5051] <... openat resumed>) = 3 [pid 5048] <... mkdir resumed>) = 0 [pid 5409] <... prctl resumed>) = 0 [pid 5408] close(11 [pid 5051] newfstatat(3, "", [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5409] setpgid(0, 0 [pid 5408] close(12 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] getdents64(3, [pid 5409] <... setpgid resumed>) = 0 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] close(3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5408] close(13 [pid 5051] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5408] close(14 [pid 5052] <... close resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./57/binderfs", [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./61" [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5408] close(15 [pid 5051] unlink("./57/binderfs" [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5408] close(16) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5408] close(17) = -1 EBADF (Bad file descriptor) [pid 5408] close(18) = -1 EBADF (Bad file descriptor) [pid 5408] close(19 [pid 5051] <... umount2 resumed>) = 0 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(20) = -1 EBADF (Bad file descriptor) [pid 5408] close(21) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5408] close(22 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(23) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./57/file0", [pid 5408] close(24 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(25 [pid 5051] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5408] close(26) = -1 EBADF (Bad file descriptor) [pid 5408] close(27 [pid 5051] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5408] close(28) = -1 EBADF (Bad file descriptor) [pid 5408] close(29 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5408] exit_group(0 [pid 5409] <... openat resumed>) = 3 [pid 5051] getdents64(4, [pid 5053] mkdir("./57", 0777 [pid 5052] <... rmdir resumed>) = 0 [pid 5409] write(3, "1000", 4 [pid 5408] <... exit_group resumed>) = ? [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] mkdir("./62", 0777 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5409] <... write resumed>) = 4 [pid 5053] <... mkdir resumed>) = 0 [pid 5409] close(3 [pid 5408] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... mkdir resumed>) = 0 [pid 5051] close(4 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... close resumed>) = 0 [pid 5051] rmdir("./57/file0" [pid 5053] <... openat resumed>) = 3 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5048] close(3 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5409] <... close resumed>) = 0 [pid 5053] close(3 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... close resumed>) = 0 [pid 5409] symlink("/dev/binderfs", "./binderfs" [pid 5053] <... close resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] getdents64(3, [pid 5050] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... openat resumed>) = 3 [pid 5050] newfstatat(3, "", ./strace-static-x86_64: Process 5410 attached [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5410] set_robust_list(0x5555566e0760, 24 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 59 [pid 5052] close(3 [pid 5051] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 57 [pid 5409] <... symlink resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5410] <... set_robust_list resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] rmdir("./57" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5410] chdir("./57" [pid 5051] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5411 attached [pid 5411] set_robust_list(0x5555566e0760, 24) = 0 [pid 5411] chdir("./55") = 0 [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5410] <... chdir resumed>) = 0 [pid 5409] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] mkdir("./58", 0777 [pid 5050] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5412 attached [pid 5411] <... prctl resumed>) = 0 [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5409] <... socket resumed>) = 3 [pid 5411] setpgid(0, 0 [pid 5412] set_robust_list(0x5555566e0760, 24 [pid 5411] <... setpgid resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5412] <... set_robust_list resumed>) = 0 [pid 5410] <... prctl resumed>) = 0 [pid 5409] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 64 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5412] chdir("./62" [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5410] setpgid(0, 0 [pid 5409] <... socket resumed>) = 4 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] newfstatat(AT_FDCWD, "./54/binderfs", [pid 5412] <... chdir resumed>) = 0 [pid 5410] <... setpgid resumed>) = 0 [pid 5409] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5409] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] unlink("./54/binderfs" [pid 5412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5411] <... openat resumed>) = 3 [pid 5409] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5050] <... unlink resumed>) = 0 [pid 5412] <... prctl resumed>) = 0 [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5409] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5412] setpgid(0, 0 [pid 5411] write(3, "1000", 4 [pid 5412] <... setpgid resumed>) = 0 [pid 5411] <... write resumed>) = 4 [pid 5412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5411] close(3) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5409] memfd_create("syzkaller", 0 [pid 5411] symlink("/dev/binderfs", "./binderfs" [pid 5409] <... memfd_create resumed>) = 5 [pid 5051] close(3 [pid 5412] <... openat resumed>) = 3 [pid 5411] <... symlink resumed>) = 0 [pid 5410] <... openat resumed>) = 3 [pid 5409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... close resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5410] write(3, "1000", 4 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5410] <... write resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5412] write(3, "1000", 4 [pid 5411] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5050] newfstatat(AT_FDCWD, "./54/file0", [pid 5412] <... write resumed>) = 4 [pid 5411] <... socket resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5412] close(3 [pid 5050] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5412] <... close resumed>) = 0 [pid 5409] <... mmap resumed>) = 0x7f1263f98000 [pid 5412] symlink("/dev/binderfs", "./binderfs" [pid 5411] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5410] close(3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5413 attached [pid 5412] <... symlink resumed>) = 0 [pid 5411] <... socket resumed>) = 4 [pid 5410] <... close resumed>) = 0 [pid 5409] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5050] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5413] set_robust_list(0x5555566e0760, 24 [pid 5411] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5409] mkdir("./file0", 000 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 60 [pid 5412] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5411] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5409] <... mkdir resumed>) = 0 [pid 5413] <... set_robust_list resumed>) = 0 [pid 5412] <... socket resumed>) = 3 [pid 5411] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5413] chdir("./58" [pid 5411] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5412] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5413] <... chdir resumed>) = 0 [pid 5412] <... socket resumed>) = 4 [pid 5411] memfd_create("syzkaller", 0 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5412] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5411] <... memfd_create resumed>) = 5 [pid 5413] <... prctl resumed>) = 0 [pid 5409] symlink(NULL, NULL [pid 5412] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5413] setpgid(0, 0 [pid 5412] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5409] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5413] <... setpgid resumed>) = 0 [pid 5412] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5412] memfd_create("syzkaller", 0 [pid 5411] <... mmap resumed>) = 0x7f1263f98000 [pid 5409] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5410] symlink("/dev/binderfs", "./binderfs" [pid 5050] <... openat resumed>) = 4 [pid 5413] <... openat resumed>) = 3 [pid 5411] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5410] <... symlink resumed>) = 0 [pid 5409] <... mount resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5410] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5412] <... memfd_create resumed>) = 5 [pid 5411] mkdir("./file0", 000 [pid 5410] <... socket resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5410] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] getdents64(4, [pid 5413] write(3, "1000", 4 [pid 5412] <... mmap resumed>) = 0x7f1263f98000 [pid 5411] <... mkdir resumed>) = 0 [pid 5410] <... socket resumed>) = 4 [pid 5409] open(NULL, O_RDONLY [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5413] <... write resumed>) = 4 [pid 5412] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5410] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5409] <... open resumed>) = -1 EFAULT (Bad address) [pid 5413] close(3 [pid 5412] mkdir("./file0", 000 [pid 5411] symlink(NULL, NULL [pid 5410] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5409] close(3 [pid 5413] <... close resumed>) = 0 [pid 5412] <... mkdir resumed>) = 0 [pid 5413] symlink("/dev/binderfs", "./binderfs" [pid 5411] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5410] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5409] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5410] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5413] <... symlink resumed>) = 0 [pid 5411] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5410] memfd_create("syzkaller", 0 [pid 5409] close(4 [pid 5050] close(4 [pid 5412] symlink(NULL, NULL [pid 5411] <... mount resumed>) = 0 [pid 5409] <... close resumed>) = 0 [pid 5413] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5412] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5050] <... close resumed>) = 0 [pid 5050] rmdir("./54/file0" [pid 5413] <... socket resumed>) = 3 [pid 5412] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5410] <... memfd_create resumed>) = 5 [pid 5050] <... rmdir resumed>) = 0 [pid 5413] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5412] <... mount resumed>) = 0 [pid 5409] close(5 [pid 5050] getdents64(3, [pid 5413] <... socket resumed>) = 4 [pid 5409] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5413] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5412] open(NULL, O_RDONLY [pid 5409] close(6 [pid 5050] close(3 [pid 5413] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5412] <... open resumed>) = -1 EFAULT (Bad address) [pid 5411] open(NULL, O_RDONLY [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5412] close(3 [pid 5411] <... open resumed>) = -1 EFAULT (Bad address) [pid 5409] close(7 [pid 5050] <... close resumed>) = 0 [pid 5413] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./54" [pid 5413] memfd_create("syzkaller", 0 [pid 5412] <... close resumed>) = 0 [pid 5411] close(3 [pid 5410] <... mmap resumed>) = 0x7f1263f98000 [pid 5409] close(8) = -1 EBADF (Bad file descriptor) [pid 5412] close(4 [pid 5409] close(9 [pid 5413] <... memfd_create resumed>) = 5 [pid 5412] <... close resumed>) = 0 [pid 5411] <... close resumed>) = 0 [pid 5410] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5411] close(4 [pid 5410] mkdir("./file0", 000 [pid 5409] close(10 [pid 5413] <... mmap resumed>) = 0x7f1263f98000 [pid 5412] close(5 [pid 5411] <... close resumed>) = 0 [pid 5410] <... mkdir resumed>) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] mkdir("./55", 0777 [pid 5410] symlink(NULL, NULL [pid 5413] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5412] <... close resumed>) = 0 [pid 5411] close(5 [pid 5409] close(11 [pid 5411] <... close resumed>) = 0 [pid 5410] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5050] <... mkdir resumed>) = 0 [pid 5413] mkdir("./file0", 000 [pid 5412] close(6 [pid 5410] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... mkdir resumed>) = 0 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(6 [pid 5409] close(12 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(13 [pid 5412] close(7 [pid 5411] close(7 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... mount resumed>) = 0 [pid 5409] close(14 [pid 5412] close(8 [pid 5411] close(8 [pid 5410] open(NULL, O_RDONLY [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(15 [pid 5413] symlink(NULL, NULL [pid 5412] close(9 [pid 5410] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] close(3 [pid 5413] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(9 [pid 5410] close(3 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5412] close(10 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(16 [pid 5413] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(10 [pid 5410] <... close resumed>) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5413] <... mount resumed>) = 0 [pid 5412] close(11 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(4 [pid 5409] close(17 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(11 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(12 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(18 [pid 5413] open(NULL, O_RDONLY [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(12 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... open resumed>) = -1 EFAULT (Bad address) [pid 5412] close(13 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(19 [pid 5413] close(3 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(13 [pid 5410] <... close resumed>) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5414 attached [pid 5413] <... close resumed>) = 0 [pid 5412] close(14 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(5 [pid 5409] close(20 [pid 5414] set_robust_list(0x5555566e0760, 24 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(14 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... set_robust_list resumed>) = 0 [pid 5413] close(4 [pid 5412] close(15 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... close resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 57 [pid 5414] chdir("./55" [pid 5413] <... close resumed>) = 0 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(15 [pid 5410] close(6 [pid 5409] close(21 [pid 5412] close(16 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] close(5 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(16 [pid 5409] close(22 [pid 5414] <... chdir resumed>) = 0 [pid 5413] <... close resumed>) = 0 [pid 5412] close(17 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(23 [pid 5414] <... prctl resumed>) = 0 [pid 5413] close(6 [pid 5412] close(18 [pid 5411] close(17 [pid 5410] close(7 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] setpgid(0, 0 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(24 [pid 5414] <... setpgid resumed>) = 0 [pid 5413] close(7 [pid 5412] close(19 [pid 5411] close(18 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(8 [pid 5409] close(25 [pid 5413] close(8 [pid 5412] close(20 [pid 5411] close(19 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... openat resumed>) = 3 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(9 [pid 5409] close(26 [pid 5412] close(21 [pid 5411] close(20 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(10) = -1 EBADF (Bad file descriptor) [pid 5414] write(3, "1000", 4 [pid 5413] close(9 [pid 5414] <... write resumed>) = 4 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(27 [pid 5414] close(3 [pid 5413] close(10 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(21 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = 0 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(22 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(11 [pid 5409] close(28 [pid 5413] close(11 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(22 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(23 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(12 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] close(12 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(23 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(29 [pid 5414] symlink("/dev/binderfs", "./binderfs" [pid 5412] close(24 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... symlink resumed>) = 0 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(13 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5413] close(13 [pid 5412] close(25 [pid 5411] close(24 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] exit_group(0 [pid 5414] <... socket resumed>) = 3 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(14 [pid 5409] <... exit_group resumed>) = ? [pid 5414] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5413] close(14 [pid 5412] close(26 [pid 5411] close(25 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... socket resumed>) = 4 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(15 [pid 5414] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5413] close(15 [pid 5412] close(27 [pid 5414] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(26 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5413] close(16 [pid 5412] close(28 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(16 [pid 5414] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] +++ exited with 0 +++ [pid 5414] memfd_create("syzkaller", 0 [pid 5413] close(17 [pid 5412] close(29 [pid 5410] close(17) = -1 EBADF (Bad file descriptor) [pid 5410] close(18) = -1 EBADF (Bad file descriptor) [pid 5410] close(19 [pid 5414] <... memfd_create resumed>) = 5 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(27 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5413] close(18 [pid 5412] exit_group(0 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... mmap resumed>) = 0x7f1263f98000 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... exit_group resumed>) = ? [pid 5411] close(28 [pid 5413] close(19 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(20 [pid 5414] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(29 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] mkdir("./file0", 000 [pid 5413] close(20 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(21 [pid 5414] <... mkdir resumed>) = 0 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] exit_group(0 [pid 5414] symlink(NULL, NULL [pid 5413] close(21 [pid 5412] +++ exited with 0 +++ [pid 5411] <... exit_group resumed>) = ? [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] +++ exited with 0 +++ [pid 5049] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5414] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5413] close(22 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(22 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5413] close(23 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5414] <... mount resumed>) = 0 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5414] open(NULL, O_RDONLY [pid 5413] close(24 [pid 5410] close(23 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... open resumed>) = -1 EFAULT (Bad address) [pid 5413] close(25 [pid 5410] close(24 [pid 5049] getdents64(3, [pid 5414] close(3 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5414] <... close resumed>) = 0 [pid 5413] close(26 [pid 5410] close(25 [pid 5052] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5414] close(4 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... close resumed>) = 0 [pid 5413] close(27 [pid 5410] close(26 [pid 5052] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] close(5 [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] <... close resumed>) = 0 [pid 5413] close(28 [pid 5052] newfstatat(3, "", [pid 5049] newfstatat(AT_FDCWD, "./56/binderfs", [pid 5048] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(6 [pid 5413] close(29 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] close(27 [pid 5049] unlink("./56/binderfs" [pid 5048] newfstatat(3, "", [pid 5414] close(7 [pid 5413] exit_group(0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... exit_group resumed>) = ? [pid 5410] close(28 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] +++ exited with 0 +++ [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5048] getdents64(3, [pid 5414] close(8 [pid 5410] close(29 [pid 5049] <... unlink resumed>) = 0 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(9) = -1 EBADF (Bad file descriptor) [pid 5414] close(10) = -1 EBADF (Bad file descriptor) [pid 5414] close(11 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] close(12 [pid 5049] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] exit_group(0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] <... exit_group resumed>) = ? [pid 5052] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./55/binderfs", [pid 5414] close(13 [pid 5049] <... umount2 resumed>) = 0 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5414] close(14 [pid 5049] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] unlink("./55/binderfs" [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] close(15) = -1 EBADF (Bad file descriptor) [pid 5414] close(16 [pid 5049] newfstatat(AT_FDCWD, "./56/file0", [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./62/binderfs", [pid 5051] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5414] close(17) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] close(18 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] close(19 [pid 5052] unlink("./62/binderfs" [pid 5051] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5414] close(20) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 4 [pid 5048] <... umount2 resumed>) = 0 [pid 5414] close(21 [pid 5052] <... unlink resumed>) = 0 [pid 5048] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] +++ exited with 0 +++ [pid 5052] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5049] newfstatat(4, "", [pid 5414] close(22 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] <... umount2 resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(23 [pid 5052] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, [pid 5414] close(24 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./62/file0", [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5414] close(25 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5414] close(26 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] close(4 [pid 5414] close(27 [pid 5053] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(3, [pid 5048] newfstatat(AT_FDCWD, "./55/file0", [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5414] close(28 [pid 5053] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] rmdir("./56/file0" [pid 5048] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] <... openat resumed>) = 4 [pid 5051] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5414] close(29) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./58/binderfs", [pid 5048] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5414] exit_group(0 [pid 5052] newfstatat(4, "", [pid 5049] getdents64(3, [pid 5048] <... openat resumed>) = 4 [pid 5414] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5414] +++ exited with 0 +++ [pid 5053] getdents64(3, [pid 5052] getdents64(4, [pid 5049] close(3 [pid 5048] newfstatat(4, "", [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] close(4 [pid 5049] rmdir("./56" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] unlink("./58/binderfs" [pid 5050] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(4, [pid 5053] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] rmdir("./62/file0" [pid 5050] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(3, "", [pid 5049] mkdir("./57", 0777 [pid 5048] getdents64(4, [pid 5053] newfstatat(AT_FDCWD, "./57/binderfs", [pid 5052] <... rmdir resumed>) = 0 [pid 5051] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(3, [pid 5048] close(4 [pid 5052] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] close(3) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5052] rmdir("./62" [pid 5049] <... openat resumed>) = 3 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... close resumed>) = 0 [pid 5053] unlink("./57/binderfs" [pid 5050] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] rmdir("./55/file0" [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] close(3 [pid 5052] mkdir("./63", 0777 [pid 5049] <... close resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... umount2 resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5052] close(3) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 59 [pid 5051] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] unlink("./55/binderfs") = 0 [pid 5050] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5415 attached [pid 5415] set_robust_list(0x5555566e0760, 24 [pid 5050] <... umount2 resumed>) = 0 [pid 5050] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./55/file0", [pid 5053] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5415] <... set_robust_list resumed>) = 0 [pid 5050] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5415] chdir("./57" [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5416 attached [pid 5415] <... chdir resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./58/file0", [pid 5050] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] close(3 [pid 5416] set_robust_list(0x5555566e0760, 24 [pid 5415] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 65 [pid 5050] <... openat resumed>) = 4 [pid 5415] <... prctl resumed>) = 0 [pid 5416] <... set_robust_list resumed>) = 0 [pid 5415] setpgid(0, 0 [pid 5416] chdir("./63" [pid 5053] <... umount2 resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5048] <... close resumed>) = 0 [pid 5415] <... setpgid resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] rmdir("./55" [pid 5053] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] <... chdir resumed>) = 0 [pid 5415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(4, [pid 5416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5416] setpgid(0, 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5416] <... setpgid resumed>) = 0 [pid 5415] <... openat resumed>) = 3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... rmdir resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./57/file0", [pid 5051] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] getdents64(4, [pid 5416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5415] write(3, "1000", 4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] mkdir("./56", 0777 [pid 5416] <... openat resumed>) = 3 [pid 5415] <... write resumed>) = 4 [pid 5053] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(4, "", [pid 5050] close(4) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(4, [pid 5416] write(3, "1000", 4 [pid 5415] close(3 [pid 5050] rmdir("./55/file0" [pid 5416] <... write resumed>) = 4 [pid 5415] <... close resumed>) = 0 [pid 5416] close(3 [pid 5415] symlink("/dev/binderfs", "./binderfs" [pid 5053] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5416] <... close resumed>) = 0 [pid 5415] <... symlink resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5051] getdents64(4, [pid 5416] symlink("/dev/binderfs", "./binderfs" [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5416] <... symlink resumed>) = 0 [pid 5053] newfstatat(4, "", [pid 5051] close(4 [pid 5415] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] <... close resumed>) = 0 [pid 5050] getdents64(3, [pid 5416] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5415] <... socket resumed>) = 3 [pid 5051] rmdir("./58/file0" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5416] <... socket resumed>) = 3 [pid 5416] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5415] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] close(3 [pid 5416] <... socket resumed>) = 4 [pid 5415] <... socket resumed>) = 4 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5416] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5415] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] getdents64(4, [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5416] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5415] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] close(3 [pid 5050] rmdir("./55" [pid 5416] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5415] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... close resumed>) = 0 [pid 5416] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5415] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] rmdir("./58" [pid 5415] memfd_create("syzkaller", 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5416] memfd_create("syzkaller", 0 [pid 5053] getdents64(4, [pid 5051] mkdir("./59", 0777 [pid 5048] <... openat resumed>) = 3 [pid 5416] <... memfd_create resumed>) = 5 [pid 5415] <... memfd_create resumed>) = 5 [pid 5050] mkdir("./56", 0777 [pid 5415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5415] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] <... mkdir resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5416] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5416] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5415] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5416] mkdir("./file0", 000 [pid 5415] mkdir("./file0", 000 [pid 5053] close(4 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5415] <... mkdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5053] rmdir("./57/file0" [pid 5416] <... mkdir resumed>) = 0 [pid 5416] symlink(NULL, NULL [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5416] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] <... rmdir resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... close resumed>) = 0 [pid 5416] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] close(3 [pid 5051] <... openat resumed>) = 3 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] getdents64(3, [pid 5416] <... mount resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5415] symlink(NULL, NULL [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] close(3 [pid 5416] open(NULL, O_RDONLY [pid 5415] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] <... close resumed>) = 0 [pid 5053] rmdir("./57" [pid 5416] <... open resumed>) = -1 EFAULT (Bad address) [pid 5415] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5416] close(3 [pid 5415] <... mount resumed>) = 0 [pid 5416] <... close resumed>) = 0 [pid 5416] close(4 [pid 5053] <... rmdir resumed>) = 0 [pid 5416] <... close resumed>) = 0 [pid 5416] close(5) = 0 [pid 5416] close(6) = -1 EBADF (Bad file descriptor) [pid 5415] open(NULL, O_RDONLY [pid 5416] close(7 [pid 5415] <... open resumed>) = -1 EFAULT (Bad address) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(3./strace-static-x86_64: Process 5417 attached [pid 5416] close(8 [pid 5415] <... close resumed>) = 0 [pid 5417] set_robust_list(0x5555566e0760, 24 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 58 [pid 5416] close(9 [pid 5415] close(4 [pid 5417] <... set_robust_list resumed>) = 0 [pid 5417] chdir("./56") = 0 [pid 5417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5417] setpgid(0, 0) = 0 [pid 5417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5053] mkdir("./58", 0777 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5417] <... openat resumed>) = 3 [pid 5417] write(3, "1000", 4) = 4 [pid 5417] close(3 [pid 5053] <... mkdir resumed>) = 0 [pid 5051] close(3 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 58 [pid 5417] <... close resumed>) = 0 [pid 5417] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5417] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5417] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... close resumed>) = 0 [pid 5415] close(5 [pid 5051] <... close resumed>) = 0 [pid 5415] <... close resumed>) = 0 [pid 5415] close(6) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5416] close(10 [pid 5415] close(7 [pid 5417] <... socket resumed>) = 4 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] close(11 [pid 5415] close(8 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5416] close(12 [pid 5415] close(9 [pid 5417] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5416] close(13 [pid 5417] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(10 [pid 5417] memfd_create("syzkaller", 0 [pid 5416] close(14 [pid 5417] <... memfd_create resumed>) = 5 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5416] close(15./strace-static-x86_64: Process 5418 attached [pid 5417] <... mmap resumed>) = 0x7f1263f98000 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(11 [pid 5417] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5416] close(16 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] mkdir("./file0", 000 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(12 [pid 5418] set_robust_list(0x5555566e0760, 24 [pid 5417] <... mkdir resumed>) = 0 [pid 5416] close(17 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5418] <... set_robust_list resumed>) = 0 [pid 5417] symlink(NULL, NULL [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(13 [pid 5418] chdir("./56" [pid 5417] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5416] close(18 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5418] <... chdir resumed>) = 0 [pid 5417] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(14 [pid 5418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5417] <... mount resumed>) = 0 [pid 5416] close(19 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5418] <... prctl resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(15 [pid 5053] close(3 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 61 ./strace-static-x86_64: Process 5419 attached [pid 5418] setpgid(0, 0 [pid 5417] open(NULL, O_RDONLY [pid 5416] close(20 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] set_robust_list(0x5555566e0760, 24 [pid 5418] <... setpgid resumed>) = 0 [pid 5417] <... open resumed>) = -1 EFAULT (Bad address) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(16 [pid 5053] <... close resumed>) = 0 [pid 5417] close(3 [pid 5416] close(21 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(17 [pid 5419] <... set_robust_list resumed>) = 0 [pid 5416] close(22 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] chdir("./59" [pid 5417] <... close resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(18 [pid 5416] close(23 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(19 [pid 5419] <... chdir resumed>) = 0 [pid 5418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5417] close(4 [pid 5416] close(24 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5418] <... openat resumed>) = 3 [pid 5417] <... close resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(20 [pid 5419] <... prctl resumed>) = 0 [pid 5416] close(25 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] setpgid(0, 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(21 [pid 5419] <... setpgid resumed>) = 0 [pid 5416] close(26 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5418] write(3, "1000", 4 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(22 [pid 5418] <... write resumed>) = 4 [pid 5417] close(5 [pid 5416] close(27 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... openat resumed>) = 3 [pid 5418] close(3 [pid 5417] <... close resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(23 [pid 5419] write(3, "1000", 4 [pid 5418] <... close resumed>) = 0 [pid 5417] close(6 [pid 5416] close(28 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5420 attached [pid 5419] <... write resumed>) = 4 [pid 5418] symlink("/dev/binderfs", "./binderfs" [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(24 [pid 5419] close(3 [pid 5418] <... symlink resumed>) = 0 [pid 5417] close(7 [pid 5416] close(29 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 60 [pid 5420] set_robust_list(0x5555566e0760, 24 [pid 5419] <... close resumed>) = 0 [pid 5418] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(25 [pid 5420] <... set_robust_list resumed>) = 0 [pid 5419] symlink("/dev/binderfs", "./binderfs" [pid 5418] <... socket resumed>) = 3 [pid 5417] close(8 [pid 5416] exit_group(0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... symlink resumed>) = 0 [pid 5415] close(26) = -1 EBADF (Bad file descriptor) [pid 5415] close(27) = -1 EBADF (Bad file descriptor) [pid 5415] close(28) = -1 EBADF (Bad file descriptor) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] <... exit_group resumed>) = ? [pid 5415] close(29 [pid 5420] chdir("./58" [pid 5419] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5418] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5417] close(9 [pid 5416] +++ exited with 0 +++ [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] <... chdir resumed>) = 0 [pid 5418] <... socket resumed>) = 4 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] exit_group(0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5418] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5417] close(10 [pid 5415] <... exit_group resumed>) = ? [pid 5420] <... prctl resumed>) = 0 [pid 5418] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] +++ exited with 0 +++ [pid 5420] setpgid(0, 0 [pid 5419] <... socket resumed>) = 3 [pid 5418] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5417] close(11 [pid 5052] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5420] <... setpgid resumed>) = 0 [pid 5419] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5418] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5419] <... socket resumed>) = 4 [pid 5417] close(12 [pid 5052] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5419] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5418] memfd_create("syzkaller", 0 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5419] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5417] close(13 [pid 5052] newfstatat(3, "", [pid 5420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5419] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5418] <... memfd_create resumed>) = 5 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5419] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5417] close(14 [pid 5052] getdents64(3, [pid 5420] <... openat resumed>) = 3 [pid 5419] memfd_create("syzkaller", 0 [pid 5418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] <... memfd_create resumed>) = 5 [pid 5417] close(15 [pid 5052] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5420] write(3, "1000", 4 [pid 5419] <... mmap resumed>) = 0x7f1263f98000 [pid 5418] <... mmap resumed>) = 0x7f1263f98000 [pid 5417] close(16 [pid 5052] newfstatat(AT_FDCWD, "./63/binderfs", [pid 5049] <... openat resumed>) = 3 [pid 5420] <... write resumed>) = 4 [pid 5419] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5418] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] newfstatat(3, "", [pid 5420] close(3 [pid 5419] mkdir("./file0", 000 [pid 5418] mkdir("./file0", 000 [pid 5417] close(17 [pid 5052] unlink("./63/binderfs" [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5420] <... close resumed>) = 0 [pid 5419] <... mkdir resumed>) = 0 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5049] getdents64(3, [pid 5420] symlink("/dev/binderfs", "./binderfs" [pid 5419] symlink(NULL, NULL [pid 5417] close(18 [pid 5052] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5419] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5420] <... symlink resumed>) = 0 [pid 5419] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5417] close(19 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5420] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5419] <... mount resumed>) = 0 [pid 5418] <... mkdir resumed>) = 0 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./57/binderfs", [pid 5420] <... socket resumed>) = 3 [pid 5417] close(20 [pid 5052] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5417] close(21 [pid 5052] newfstatat(AT_FDCWD, "./63/file0", [pid 5049] unlink("./57/binderfs" [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5420] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5418] symlink(NULL, NULL [pid 5417] close(22 [pid 5052] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... unlink resumed>) = 0 [pid 5420] <... socket resumed>) = 4 [pid 5419] open(NULL, O_RDONLY [pid 5418] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] <... open resumed>) = -1 EFAULT (Bad address) [pid 5417] close(23 [pid 5052] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5420] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5419] close(3 [pid 5418] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5049] <... umount2 resumed>) = 0 [pid 5419] <... close resumed>) = 0 [pid 5417] close(24 [pid 5052] newfstatat(4, "", [pid 5420] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5419] close(4 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] <... close resumed>) = 0 [pid 5418] <... mount resumed>) = 0 [pid 5417] close(25 [pid 5052] getdents64(4, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./57/file0", [pid 5420] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5419] close(5 [pid 5417] close(26 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5419] <... close resumed>) = 0 [pid 5418] open(NULL, O_RDONLY [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] memfd_create("syzkaller", 0 [pid 5419] close(6 [pid 5417] close(27 [pid 5052] getdents64(4, [pid 5049] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... open resumed>) = -1 EFAULT (Bad address) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5419] close(7 [pid 5418] close(3 [pid 5417] close(28 [pid 5052] close(4 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5420] <... memfd_create resumed>) = 5 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5419] close(8 [pid 5418] <... close resumed>) = 0 [pid 5417] close(29 [pid 5052] rmdir("./63/file0" [pid 5049] <... openat resumed>) = 4 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5418] close(4 [pid 5420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5417] exit_group(0 [pid 5419] close(9 [pid 5418] <... close resumed>) = 0 [pid 5417] <... exit_group resumed>) = ? [pid 5049] newfstatat(4, "", [pid 5420] <... mmap resumed>) = 0x7f1263f98000 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(5 [pid 5420] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5420] mkdir("./file0", 000 [pid 5419] close(10 [pid 5052] getdents64(3, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5049] getdents64(4, [pid 5419] close(11 [pid 5418] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(6 [pid 5052] rmdir("./63" [pid 5049] getdents64(4, [pid 5419] close(12 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(7 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5419] close(13 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5049] close(4 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5419] close(14 [pid 5049] rmdir("./57/file0" [pid 5420] <... mkdir resumed>) = 0 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(8 [pid 5052] mkdir("./64", 0777 [pid 5049] <... rmdir resumed>) = 0 [pid 5419] close(15 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] +++ exited with 0 +++ [pid 5052] <... mkdir resumed>) = 0 [pid 5049] getdents64(3, [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5419] close(16) = -1 EBADF (Bad file descriptor) [pid 5419] close(17 [pid 5050] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5420] symlink(NULL, NULL [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(9 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] close(3 [pid 5420] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5419] close(18 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... close resumed>) = 0 [pid 5420] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(10 [pid 5050] <... openat resumed>) = 3 [pid 5419] close(19 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] newfstatat(3, "", [pid 5049] rmdir("./57" [pid 5420] <... mount resumed>) = 0 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5420] open(NULL, O_RDONLY [pid 5419] close(20 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5418] close(11 [pid 5420] <... open resumed>) = -1 EFAULT (Bad address) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5420] close(3 [pid 5419] close(21 [pid 5418] close(12 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] close(3 [pid 5049] mkdir("./58", 0777 [pid 5052] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5420] <... close resumed>) = 0 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5418] close(13 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... openat resumed>) = 3 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5420] close(4 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(22 [pid 5418] close(14 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5418] close(15 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./56/binderfs", [pid 5049] <... close resumed>) = 0 [pid 5418] close(16 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(23 [pid 5418] close(17 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(18 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 66 [pid 5050] unlink("./56/binderfs" [pid 5420] <... close resumed>) = 0 [pid 5419] close(24 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... unlink resumed>) = 0 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(19 [pid 5050] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] close(25) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5421 attached [pid 5419] close(26 [pid 5420] close(5 [pid 5050] <... umount2 resumed>) = 0 [pid 5421] set_robust_list(0x5555566e0760, 24 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] <... set_robust_list resumed>) = 0 [pid 5420] <... close resumed>) = 0 [pid 5419] close(27 [pid 5418] close(20 [pid 5050] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] chdir("./64" [pid 5420] close(6 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] <... chdir resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(28 [pid 5421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(21 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5420] close(7./strace-static-x86_64: Process 5422 attached [pid 5421] <... prctl resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(29 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./56/file0", [pid 5422] set_robust_list(0x5555566e0760, 24 [pid 5421] setpgid(0, 0 [pid 5420] close(8 [pid 5418] close(22 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 60 [pid 5422] <... set_robust_list resumed>) = 0 [pid 5421] <... setpgid resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5422] chdir("./58" [pid 5420] close(9 [pid 5419] exit_group(0 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... exit_group resumed>) = ? [pid 5418] close(23 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] <... chdir resumed>) = 0 [pid 5421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5420] close(10 [pid 5419] +++ exited with 0 +++ [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5421] <... openat resumed>) = 3 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(24 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... openat resumed>) = 4 [pid 5422] <... prctl resumed>) = 0 [pid 5421] write(3, "1000", 4 [pid 5420] close(11 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(4, "", [pid 5422] setpgid(0, 0 [pid 5421] <... write resumed>) = 4 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(25 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5422] <... setpgid resumed>) = 0 [pid 5421] close(3 [pid 5420] close(12 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5421] <... close resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(26 [pid 5051] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5420] close(13 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(27 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5420] close(14 [pid 5051] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] symlink("/dev/binderfs", "./binderfs" [pid 5420] close(15 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(16 [pid 5050] getdents64(4, [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(17 [pid 5051] newfstatat(3, "", [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(18) = -1 EBADF (Bad file descriptor) [pid 5420] close(19) = -1 EBADF (Bad file descriptor) [pid 5420] close(20) = -1 EBADF (Bad file descriptor) [pid 5420] close(21) = -1 EBADF (Bad file descriptor) [pid 5418] close(28 [pid 5420] close(22 [pid 5422] <... openat resumed>) = 3 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] write(3, "1000", 4 [pid 5421] <... symlink resumed>) = 0 [pid 5420] close(23 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5422] <... write resumed>) = 4 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] close(29 [pid 5422] close(3 [pid 5420] close(24 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(25) = -1 EBADF (Bad file descriptor) [pid 5420] close(26 [pid 5421] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5422] <... close resumed>) = 0 [pid 5421] <... socket resumed>) = 3 [pid 5420] close(27 [pid 5418] exit_group(0 [pid 5422] symlink("/dev/binderfs", "./binderfs" [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5420] close(28 [pid 5418] <... exit_group resumed>) = ? [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... close resumed>) = 0 [pid 5421] <... socket resumed>) = 4 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./56/file0" [pid 5421] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5420] close(29 [pid 5421] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... rmdir resumed>) = 0 [pid 5421] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5422] <... symlink resumed>) = 0 [pid 5421] memfd_create("syzkaller", 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(3, [pid 5421] <... memfd_create resumed>) = 5 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] close(3 [pid 5422] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5420] exit_group(0 [pid 5051] newfstatat(AT_FDCWD, "./59/binderfs", [pid 5050] <... close resumed>) = 0 [pid 5422] <... socket resumed>) = 3 [pid 5421] <... mmap resumed>) = 0x7f1263f98000 [pid 5420] <... exit_group resumed>) = ? [pid 5418] +++ exited with 0 +++ [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] rmdir("./56" [pid 5422] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] <... rmdir resumed>) = 0 [pid 5050] mkdir("./57", 0777 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5421] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5050] <... mkdir resumed>) = 0 [pid 5048] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5422] <... socket resumed>) = 4 [pid 5421] mkdir("./file0", 000 [pid 5051] unlink("./59/binderfs" [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5421] <... mkdir resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5048] <... openat resumed>) = 3 [pid 5422] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] close(3 [pid 5048] newfstatat(3, "", [pid 5422] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5050] <... close resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5422] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5420] +++ exited with 0 +++ [pid 5421] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5421] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5421] open(NULL, O_RDONLY [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 59 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5421] <... open resumed>) = -1 EFAULT (Bad address) [pid 5421] close(3 [pid 5048] getdents64(3, ./strace-static-x86_64: Process 5423 attached [pid 5421] <... close resumed>) = 0 [pid 5423] set_robust_list(0x5555566e0760, 24 [pid 5421] close(4 [pid 5053] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5423] <... set_robust_list resumed>) = 0 [pid 5422] memfd_create("syzkaller", 0 [pid 5421] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5423] chdir("./57" [pid 5422] <... memfd_create resumed>) = 5 [pid 5421] close(5 [pid 5053] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] <... chdir resumed>) = 0 [pid 5422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5421] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5051] newfstatat(AT_FDCWD, "./59/file0", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5422] <... mmap resumed>) = 0x7f1263f98000 [pid 5421] close(6 [pid 5053] newfstatat(3, "", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(AT_FDCWD, "./56/binderfs", [pid 5423] <... prctl resumed>) = 0 [pid 5422] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5423] setpgid(0, 0 [pid 5422] mkdir("./file0", 000 [pid 5421] close(7 [pid 5051] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] <... setpgid resumed>) = 0 [pid 5422] <... mkdir resumed>) = 0 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] unlink("./56/binderfs" [pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... unlink resumed>) = 0 [pid 5421] close(8 [pid 5053] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5423] <... openat resumed>) = 3 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 4 [pid 5423] write(3, "1000", 4 [pid 5422] symlink(NULL, NULL [pid 5053] newfstatat(AT_FDCWD, "./58/binderfs", [pid 5051] newfstatat(4, "", [pid 5048] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] <... write resumed>) = 4 [pid 5422] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5421] close(9 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(10 [pid 5423] close(3 [pid 5422] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] unlink("./58/binderfs" [pid 5051] getdents64(4, [pid 5048] <... umount2 resumed>) = 0 [pid 5423] <... close resumed>) = 0 [pid 5422] <... mount resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5423] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(11 [pid 5053] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5048] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5422] open(NULL, O_RDONLY [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5423] <... socket resumed>) = 3 [pid 5422] <... open resumed>) = -1 EFAULT (Bad address) [pid 5421] close(12 [pid 5048] newfstatat(AT_FDCWD, "./56/file0", [pid 5423] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5422] close(3 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5423] <... socket resumed>) = 4 [pid 5422] <... close resumed>) = 0 [pid 5421] close(13 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5423] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5422] close(4 [pid 5053] newfstatat(AT_FDCWD, "./58/file0", [pid 5051] rmdir("./59/file0" [pid 5048] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5422] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5423] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5423] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5422] close(5 [pid 5053] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5423] memfd_create("syzkaller", 0 [pid 5422] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] close(6 [pid 5053] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(3, [pid 5423] <... memfd_create resumed>) = 5 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] newfstatat(4, "", [pid 5423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5422] close(7 [pid 5053] newfstatat(4, "", [pid 5051] close(3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5423] <... mmap resumed>) = 0x7f1263f98000 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... close resumed>) = 0 [pid 5422] close(8 [pid 5048] getdents64(4, [pid 5423] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5051] rmdir("./59" [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5422] close(9 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] mkdir("./file0", 000 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(14 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... rmdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5423] <... mkdir resumed>) = 0 [pid 5422] close(10 [pid 5053] getdents64(4, [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(15 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5422] close(11 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5422] close(12 [pid 5048] <... close resumed>) = 0 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(16 [pid 5053] <... close resumed>) = 0 [pid 5048] rmdir("./56/file0" [pid 5423] symlink(NULL, NULL [pid 5422] close(13 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./58/file0" [pid 5051] mkdir("./60", 0777 [pid 5048] <... rmdir resumed>) = 0 [pid 5423] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(17 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5422] close(14 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(18 [pid 5053] getdents64(3, [pid 5048] getdents64(3, [pid 5423] <... mount resumed>) = 0 [pid 5422] close(15 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5421] close(19 [pid 5423] open(NULL, O_RDONLY [pid 5422] close(16 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5423] <... open resumed>) = -1 EFAULT (Bad address) [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(20 [pid 5048] <... close resumed>) = 0 [pid 5423] close(3 [pid 5422] close(17 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./58" [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5048] rmdir("./56" [pid 5423] <... close resumed>) = 0 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(21 [pid 5422] close(18 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... rmdir resumed>) = 0 [pid 5423] close(4 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(22 [pid 5423] <... close resumed>) = 0 [pid 5422] close(19 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(23 [pid 5423] close(5 [pid 5422] close(20 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./59", 0777 [pid 5051] close(3 [pid 5423] <... close resumed>) = 0 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(24 [pid 5051] <... close resumed>) = 0 [pid 5048] mkdir("./57", 0777 [pid 5422] close(21 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(6 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(25 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... mkdir resumed>) = 0 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] close(22 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5421] close(26 [pid 5423] close(7 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] close(23 [pid 5423] close(8 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] close(24 [pid 5423] close(9 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] close(25 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(10 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(27 [pid 5053] <... openat resumed>) = 3 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] close(26 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(11 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(28 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] close(27 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5424 attached [pid 5423] close(12 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(29 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... openat resumed>) = 3 [pid 5424] set_robust_list(0x5555566e0760, 24 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] close(28 [pid 5053] close(3 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 62 [pid 5424] <... set_robust_list resumed>) = 0 [pid 5423] close(13 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5424] chdir("./60" [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] close(29 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5423] close(14 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] exit_group(0 [pid 5424] <... chdir resumed>) = 0 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] exit_group(0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5423] close(15 [pid 5422] <... exit_group resumed>) = ? [pid 5424] <... prctl resumed>) = 0 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] +++ exited with 0 +++ [pid 5421] <... exit_group resumed>) = ? [pid 5048] close(3 [pid 5424] setpgid(0, 0 [pid 5423] close(16 [pid 5424] <... setpgid resumed>) = 0 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5423] close(17 [pid 5424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5423] close(18 [pid 5424] <... openat resumed>) = 3 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] close(19) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5423] close(20 [pid 5049] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5424] write(3, "1000", 4 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... write resumed>) = 4 [pid 5423] close(21 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 61 [pid 5049] <... openat resumed>) = 3 [pid 5424] close(3 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5423] close(22 [pid 5424] <... close resumed>) = 0 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5424] symlink("/dev/binderfs", "./binderfs" [pid 5423] close(23 [pid 5424] <... symlink resumed>) = 0 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(24 [pid 5049] getdents64(3, [pid 5424] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5424] <... socket resumed>) = 3 [pid 5423] close(25 [pid 5049] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5426 attached [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5426] set_robust_list(0x5555566e0760, 24 [pid 5424] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5423] close(26 [pid 5049] newfstatat(AT_FDCWD, "./58/binderfs", [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 59 [pid 5426] <... set_robust_list resumed>) = 0 [pid 5424] <... socket resumed>) = 4 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5426] chdir("./57" [pid 5423] close(27./strace-static-x86_64: Process 5425 attached [pid 5426] <... chdir resumed>) = 0 [pid 5424] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./58/binderfs" [pid 5426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5425] set_robust_list(0x5555566e0760, 24 [pid 5424] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5423] close(28 [pid 5049] <... unlink resumed>) = 0 [pid 5426] <... prctl resumed>) = 0 [pid 5424] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(29 [pid 5424] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] setpgid(0, 0 [pid 5425] <... set_robust_list resumed>) = 0 [pid 5423] exit_group(0 [pid 5421] +++ exited with 0 +++ [pid 5426] <... setpgid resumed>) = 0 [pid 5424] memfd_create("syzkaller", 0 [pid 5423] <... exit_group resumed>) = ? [pid 5049] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5425] chdir("./59" [pid 5424] <... memfd_create resumed>) = 5 [pid 5423] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5426] <... openat resumed>) = 3 [pid 5425] <... chdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5425] <... prctl resumed>) = 0 [pid 5424] <... mmap resumed>) = 0x7f1263f98000 [pid 5426] write(3, "1000", 4 [pid 5425] setpgid(0, 0 [pid 5424] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5049] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5426] <... write resumed>) = 4 [pid 5425] <... setpgid resumed>) = 0 [pid 5424] mkdir("./file0", 000 [pid 5052] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5426] close(3 [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5426] <... close resumed>) = 0 [pid 5424] <... mkdir resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./58/file0", [pid 5425] <... openat resumed>) = 3 [pid 5425] write(3, "1000", 4 [pid 5052] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5426] symlink("/dev/binderfs", "./binderfs" [pid 5050] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5426] <... symlink resumed>) = 0 [pid 5425] <... write resumed>) = 4 [pid 5424] symlink(NULL, NULL [pid 5049] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5425] close(3 [pid 5052] newfstatat(3, "", [pid 5050] <... openat resumed>) = 3 [pid 5425] <... close resumed>) = 0 [pid 5426] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5425] symlink("/dev/binderfs", "./binderfs" [pid 5424] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] newfstatat(3, "", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5426] <... socket resumed>) = 3 [pid 5425] <... symlink resumed>) = 0 [pid 5424] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] getdents64(3, [pid 5049] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5426] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5425] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5424] <... mount resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5426] <... socket resumed>) = 4 [pid 5425] <... socket resumed>) = 3 [pid 5052] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(3, [pid 5425] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5426] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] newfstatat(4, "", [pid 5426] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5424] open(NULL, O_RDONLY [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5426] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5424] <... open resumed>) = -1 EFAULT (Bad address) [pid 5426] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5424] close(3 [pid 5049] getdents64(4, [pid 5426] memfd_create("syzkaller", 0 [pid 5425] <... socket resumed>) = 4 [pid 5050] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5425] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5424] <... close resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./64/binderfs", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5426] <... memfd_create resumed>) = 5 [pid 5425] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5424] close(4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] newfstatat(AT_FDCWD, "./57/binderfs", [pid 5049] getdents64(4, [pid 5426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5425] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5424] <... close resumed>) = 0 [pid 5052] unlink("./64/binderfs" [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5426] <... mmap resumed>) = 0x7f1263f98000 [pid 5425] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5424] close(5 [pid 5049] close(4 [pid 5424] <... close resumed>) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5050] unlink("./57/binderfs" [pid 5049] <... close resumed>) = 0 [pid 5426] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5425] memfd_create("syzkaller", 0 [pid 5424] close(6 [pid 5049] rmdir("./58/file0" [pid 5426] mkdir("./file0", 000 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... unlink resumed>) = 0 [pid 5426] <... mkdir resumed>) = 0 [pid 5425] <... memfd_create resumed>) = 5 [pid 5424] close(7 [pid 5052] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(8) = -1 EBADF (Bad file descriptor) [pid 5425] <... mmap resumed>) = 0x7f1263f98000 [pid 5424] close(9 [pid 5425] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(10 [pid 5049] getdents64(3, [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] mkdir("./file0", 000 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5426] symlink(NULL, NULL [pid 5424] close(11 [pid 5049] close(3 [pid 5426] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5425] <... mkdir resumed>) = 0 [pid 5426] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5425] symlink(NULL, NULL [pid 5424] close(12 [pid 5052] <... umount2 resumed>) = 0 [pid 5050] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] rmdir("./58" [pid 5426] <... mount resumed>) = 0 [pid 5425] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... rmdir resumed>) = 0 [pid 5425] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./57/file0", [pid 5424] close(13) = -1 EBADF (Bad file descriptor) [pid 5424] close(14) = -1 EBADF (Bad file descriptor) [pid 5424] close(15) = -1 EBADF (Bad file descriptor) [pid 5426] open(NULL, O_RDONLY [pid 5424] close(16 [pid 5049] mkdir("./59", 0777 [pid 5426] <... open resumed>) = -1 EFAULT (Bad address) [pid 5425] <... mount resumed>) = 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(3 [pid 5424] close(17 [pid 5052] newfstatat(AT_FDCWD, "./64/file0", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5426] <... close resumed>) = 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... mkdir resumed>) = 0 [pid 5424] close(18 [pid 5426] close(4) = 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] open(NULL, O_RDONLY [pid 5424] close(19 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5426] close(5 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5426] <... close resumed>) = 0 [pid 5424] close(20 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5426] close(6 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(21 [pid 5052] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(4, "", [pid 5426] close(7 [pid 5425] <... open resumed>) = -1 EFAULT (Bad address) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(3 [pid 5424] close(22 [pid 5052] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5426] close(8 [pid 5425] <... close resumed>) = 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(4 [pid 5424] close(23 [pid 5052] <... openat resumed>) = 4 [pid 5050] getdents64(4, [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5426] close(9 [pid 5425] <... close resumed>) = 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(24 [pid 5052] newfstatat(4, "", [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] close(3 [pid 5426] close(10 [pid 5425] close(5 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(25 [pid 5426] close(11 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(26 [pid 5426] close(12 [pid 5425] <... close resumed>) = 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5424] close(27) = -1 EBADF (Bad file descriptor) [pid 5424] close(28) = -1 EBADF (Bad file descriptor) [pid 5424] close(29 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(13) = -1 EBADF (Bad file descriptor) [pid 5424] exit_group(0 [pid 5426] close(14 [pid 5424] <... exit_group resumed>) = ? [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(6 [pid 5052] getdents64(4, [pid 5050] close(4 [pid 5426] close(15) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5426] close(16 [pid 5052] getdents64(4, [pid 5050] <... close resumed>) = 0 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(7 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] rmdir("./57/file0" [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(17) = -1 EBADF (Bad file descriptor) [pid 5425] close(8 [pid 5052] close(4 [pid 5050] <... rmdir resumed>) = 0 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(18 [pid 5052] <... close resumed>) = 0 [pid 5425] close(9 [pid 5050] getdents64(3, [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./64/file0"./strace-static-x86_64: Process 5427 attached [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(10 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 61 [pid 5426] close(19 [pid 5427] set_robust_list(0x5555566e0760, 24 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5050] close(3 [pid 5427] <... set_robust_list resumed>) = 0 [pid 5426] close(20 [pid 5425] close(11 [pid 5424] +++ exited with 0 +++ [pid 5427] chdir("./59" [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5427] <... chdir resumed>) = 0 [pid 5426] close(21 [pid 5425] close(12 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] rmdir("./57" [pid 5427] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] <... prctl resumed>) = 0 [pid 5426] close(22 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5427] setpgid(0, 0 [pid 5426] close(23 [pid 5425] close(13 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... rmdir resumed>) = 0 [pid 5427] <... setpgid resumed>) = 0 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5051] newfstatat(3, "", [pid 5050] mkdir("./58", 0777 [pid 5427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5426] close(24 [pid 5425] close(14 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5051] getdents64(3, [pid 5426] close(25 [pid 5425] close(15 [pid 5052] rmdir("./64" [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5427] <... openat resumed>) = 3 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... mkdir resumed>) = 0 [pid 5426] close(26) = -1 EBADF (Bad file descriptor) [pid 5427] write(3, "1000", 4 [pid 5426] close(27 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] <... write resumed>) = 4 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(16 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./60/binderfs", [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5427] close(3 [pid 5426] close(28 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5427] <... close resumed>) = 0 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(17 [pid 5427] symlink("/dev/binderfs", "./binderfs" [pid 5426] close(29 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./60/binderfs" [pid 5427] <... symlink resumed>) = 0 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(18 [pid 5052] mkdir("./65", 0777 [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] exit_group(0 [pid 5425] close(19) = -1 EBADF (Bad file descriptor) [pid 5427] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5425] close(20 [pid 5427] <... socket resumed>) = 3 [pid 5426] <... exit_group resumed>) = ? [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5425] close(21) = -1 EBADF (Bad file descriptor) [pid 5425] close(22 [pid 5427] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5426] +++ exited with 0 +++ [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5427] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5427] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5427] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5427] memfd_create("syzkaller", 0) = 5 [pid 5427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5427] <... mmap resumed>) = 0x7f1263f98000 [pid 5048] newfstatat(3, "", [pid 5427] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5427] mkdir("./file0", 000 [pid 5048] getdents64(3, [pid 5427] <... mkdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./57/binderfs", [pid 5427] symlink(NULL, NULL [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5427] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5425] close(23 [pid 5427] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] unlink("./57/binderfs" [pid 5427] <... mount resumed>) = 0 [pid 5425] close(24 [pid 5051] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./60/file0", [pid 5050] close(3 [pid 5425] close(25 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5425] close(26 [pid 5427] open(NULL, O_RDONLY [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] <... open resumed>) = -1 EFAULT (Bad address) [pid 5425] close(27 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] close(3 [pid 5051] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... umount2 resumed>) = 0 [pid 5427] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5051] newfstatat(4, "", [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5425] close(28 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5427] close(4 [pid 5051] getdents64(4, [pid 5048] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] close(5) = 0 [pid 5051] getdents64(4, [pid 5048] newfstatat(AT_FDCWD, "./57/file0", [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5428 attached [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5428] set_robust_list(0x5555566e0760, 24 [pid 5427] close(6 [pid 5425] close(29 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] close(4 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 60 [pid 5428] <... set_robust_list resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... close resumed>) = 0 [pid 5048] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5428] chdir("./58" [pid 5427] close(7 [pid 5425] exit_group(0 [pid 5052] close(3 [pid 5051] rmdir("./60/file0" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5428] <... chdir resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... exit_group resumed>) = ? [pid 5052] <... close resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5427] close(8 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... openat resumed>) = 4 [pid 5428] <... prctl resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] setpgid(0, 0 [pid 5427] close(9) = -1 EBADF (Bad file descriptor) [pid 5427] close(10 [pid 5428] <... setpgid resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] newfstatat(4, "", [pid 5427] close(11 [pid 5051] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5428] <... openat resumed>) = 3 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5427] close(12 [pid 5051] close(3 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5428] write(3, "1000", 4 [pid 5427] close(13 [pid 5051] <... close resumed>) = 0 [pid 5048] getdents64(4, [pid 5428] <... write resumed>) = 4 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5428] close(3 [pid 5427] close(14 [pid 5051] rmdir("./60" [pid 5048] close(4 [pid 5428] <... close resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] symlink("/dev/binderfs", "./binderfs" [pid 5427] close(15 [pid 5048] <... close resumed>) = 0 [pid 5428] <... symlink resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5048] rmdir("./57/file0"./strace-static-x86_64: Process 5429 attached [pid 5427] close(16 [pid 5048] <... rmdir resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] +++ exited with 0 +++ [pid 5051] mkdir("./61", 0777 [pid 5429] set_robust_list(0x5555566e0760, 24 [pid 5428] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5427] close(17 [pid 5428] <... socket resumed>) = 3 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5051] <... mkdir resumed>) = 0 [pid 5429] <... set_robust_list resumed>) = 0 [pid 5427] close(18 [pid 5053] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 67 [pid 5428] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(3, [pid 5429] chdir("./65" [pid 5428] <... socket resumed>) = 4 [pid 5427] close(19 [pid 5053] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5429] <... chdir resumed>) = 0 [pid 5428] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5051] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5428] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5427] close(20 [pid 5053] newfstatat(3, "", [pid 5429] <... prctl resumed>) = 0 [pid 5428] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5048] <... close resumed>) = 0 [pid 5428] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5427] close(21 [pid 5429] setpgid(0, 0 [pid 5428] memfd_create("syzkaller", 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] rmdir("./57" [pid 5427] close(22 [pid 5429] <... setpgid resumed>) = 0 [pid 5428] <... memfd_create resumed>) = 5 [pid 5053] getdents64(3, [pid 5051] close(3 [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... close resumed>) = 0 [pid 5428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... rmdir resumed>) = 0 [pid 5428] <... mmap resumed>) = 0x7f1263f98000 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5429] <... openat resumed>) = 3 [pid 5053] newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5427] close(23 [pid 5428] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] mkdir("./file0", 000 [pid 5427] close(24 [pid 5053] unlink("./59/binderfs" [pid 5048] mkdir("./58", 0777 [pid 5429] write(3, "1000", 4 [pid 5428] <... mkdir resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5429] <... write resumed>) = 4 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5430 attached [pid 5427] close(25 [pid 5053] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 63 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5427] close(26 [pid 5430] set_robust_list(0x5555566e0760, 24 [pid 5429] close(3 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] <... set_robust_list resumed>) = 0 [pid 5429] <... close resumed>) = 0 [pid 5428] symlink(NULL, NULL [pid 5427] close(27 [pid 5053] <... umount2 resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5430] chdir("./61" [pid 5429] symlink("/dev/binderfs", "./binderfs" [pid 5428] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... symlink resumed>) = 0 [pid 5053] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] close(28 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5430] <... chdir resumed>) = 0 [pid 5429] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5428] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./59/file0", [pid 5430] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5428] <... mount resumed>) = 0 [pid 5427] close(29 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5430] <... prctl resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 3 [pid 5430] setpgid(0, 0 [pid 5427] exit_group(0 [pid 5430] <... setpgid resumed>) = 0 [pid 5429] <... socket resumed>) = 3 [pid 5428] open(NULL, O_RDONLY [pid 5427] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5429] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5428] <... open resumed>) = -1 EFAULT (Bad address) [pid 5427] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5430] <... openat resumed>) = 3 [pid 5429] <... socket resumed>) = 4 [pid 5428] close(3 [pid 5053] <... openat resumed>) = 4 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5429] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5430] write(3, "1000", 4 [pid 5429] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5428] <... close resumed>) = 0 [pid 5053] newfstatat(4, "", [pid 5049] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] close(3 [pid 5430] <... write resumed>) = 4 [pid 5428] close(4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5430] close(3 [pid 5429] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5428] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5049] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... close resumed>) = 0 [pid 5430] <... close resumed>) = 0 [pid 5429] memfd_create("syzkaller", 0 [pid 5428] close(5 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... openat resumed>) = 3 [pid 5430] symlink("/dev/binderfs", "./binderfs" [pid 5428] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5049] newfstatat(3, "", [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5430] <... symlink resumed>) = 0 [pid 5428] close(6 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5429] <... memfd_create resumed>) = 5 [pid 5429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5049] getdents64(3, [pid 5430] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5429] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5429] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5430] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5429] mkdir("./file0", 000 [pid 5428] close(7 [pid 5053] <... close resumed>) = 0 [pid 5049] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5430] <... socket resumed>) = 4 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./59/file0" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5430] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5429] <... mkdir resumed>) = 0 [pid 5428] close(8 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./59/binderfs", ./strace-static-x86_64: Process 5431 attached [pid 5430] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] set_robust_list(0x5555566e0760, 24 [pid 5430] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5428] close(9 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 60 [pid 5430] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./59/binderfs" [pid 5431] <... set_robust_list resumed>) = 0 [pid 5430] memfd_create("syzkaller", 0 [pid 5429] symlink(NULL, NULL [pid 5428] close(10 [pid 5053] getdents64(3, [pid 5049] <... unlink resumed>) = 0 [pid 5431] chdir("./58" [pid 5430] <... memfd_create resumed>) = 5 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5431] <... chdir resumed>) = 0 [pid 5428] close(11 [pid 5049] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5429] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5431] <... prctl resumed>) = 0 [pid 5430] <... mmap resumed>) = 0x7f1263f98000 [pid 5429] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5428] close(12 [pid 5053] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(13) = -1 EBADF (Bad file descriptor) [pid 5428] close(14) = -1 EBADF (Bad file descriptor) [pid 5428] close(15 [pid 5430] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5429] <... mount resumed>) = 0 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./59" [pid 5049] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5430] mkdir("./file0", 000 [pid 5428] close(16 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5431] setpgid(0, 0 [pid 5430] <... mkdir resumed>) = 0 [pid 5428] close(17 [pid 5049] newfstatat(AT_FDCWD, "./59/file0", [pid 5429] open(NULL, O_RDONLY [pid 5431] <... setpgid resumed>) = 0 [pid 5429] <... open resumed>) = -1 EFAULT (Bad address) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5428] close(18 [pid 5049] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] <... openat resumed>) = 3 [pid 5430] symlink(NULL, NULL [pid 5429] close(3 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./60", 0777 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5430] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5429] close(4 [pid 5428] close(19 [pid 5053] <... mkdir resumed>) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5431] write(3, "1000", 4 [pid 5430] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(20) = -1 EBADF (Bad file descriptor) [pid 5428] close(21 [pid 5430] <... mount resumed>) = 0 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(4, "", [pid 5431] <... write resumed>) = 4 [pid 5429] <... close resumed>) = 0 [pid 5428] close(22 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5431] close(3 [pid 5430] open(NULL, O_RDONLY [pid 5429] close(5 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] getdents64(4, [pid 5431] <... close resumed>) = 0 [pid 5430] <... open resumed>) = -1 EFAULT (Bad address) [pid 5429] <... close resumed>) = 0 [pid 5428] close(23 [pid 5053] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5431] symlink("/dev/binderfs", "./binderfs" [pid 5430] close(3 [pid 5429] close(6 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... symlink resumed>) = 0 [pid 5430] <... close resumed>) = 0 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(24 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] getdents64(4, [pid 5429] close(7 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(4 [pid 5428] close(25 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5430] <... close resumed>) = 0 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5430] close(5 [pid 5429] close(8 [pid 5428] close(26 [pid 5053] close(3 [pid 5049] close(4 [pid 5431] <... socket resumed>) = 3 [pid 5430] <... close resumed>) = 0 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5430] close(6 [pid 5429] close(9 [pid 5428] close(27 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./59/file0" [pid 5428] close(28) = -1 EBADF (Bad file descriptor) [pid 5428] close(29) = -1 EBADF (Bad file descriptor) [pid 5429] close(10 [pid 5431] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... socket resumed>) = 4 [pid 5429] close(11 [pid 5431] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5430] close(7 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] exit_group(0 [pid 5049] <... rmdir resumed>) = 0 [pid 5429] close(12 [pid 5431] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5429] close(13 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] <... exit_group resumed>) = ? [pid 5049] getdents64(3, [pid 5431] memfd_create("syzkaller", 0 [pid 5430] close(8 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5432 attached [pid 5431] <... memfd_create resumed>) = 5 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(14 [pid 5432] set_robust_list(0x5555566e0760, 24 [pid 5430] close(9 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 62 [pid 5049] <... close resumed>) = 0 [pid 5432] <... set_robust_list resumed>) = 0 [pid 5431] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5430] close(10 [pid 5429] close(15 [pid 5428] +++ exited with 0 +++ [pid 5049] rmdir("./59" [pid 5432] chdir("./60" [pid 5431] mkdir("./file0", 000 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] <... rmdir resumed>) = 0 [pid 5430] close(11 [pid 5429] close(16 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(12) = -1 EBADF (Bad file descriptor) [pid 5429] close(17 [pid 5430] close(13 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(18 [pid 5050] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5432] <... chdir resumed>) = 0 [pid 5430] close(14 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] mkdir("./60", 0777 [pid 5432] <... prctl resumed>) = 0 [pid 5430] close(15 [pid 5050] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5432] setpgid(0, 0 [pid 5431] <... mkdir resumed>) = 0 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(19 [pid 5049] <... mkdir resumed>) = 0 [pid 5432] <... setpgid resumed>) = 0 [pid 5430] close(16 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(20 [pid 5050] newfstatat(3, "", [pid 5430] close(17 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(18 [pid 5429] close(21 [pid 5432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5432] <... openat resumed>) = 3 [pid 5431] symlink(NULL, NULL [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5432] write(3, "1000", 4 [pid 5431] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5430] close(19 [pid 5429] close(22 [pid 5050] getdents64(3, [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5432] <... write resumed>) = 4 [pid 5431] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5432] close(3 [pid 5431] <... mount resumed>) = 0 [pid 5430] close(20 [pid 5429] close(23 [pid 5431] open(NULL, O_RDONLY [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5431] <... open resumed>) = -1 EFAULT (Bad address) [pid 5430] close(21 [pid 5049] <... close resumed>) = 0 [pid 5431] close(3 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = 0 [pid 5430] close(22 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5432] <... close resumed>) = 0 [pid 5431] close(4 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5430] close(23 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] close(24 [pid 5432] symlink("/dev/binderfs", "./binderfs" [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./58/binderfs", [pid 5430] close(24 [pid 5429] close(25 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = 0 [pid 5430] close(25 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5432] <... symlink resumed>) = 0 [pid 5431] close(5 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(26 [pid 5050] unlink("./58/binderfs" [pid 5432] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5431] <... close resumed>) = 0 [pid 5430] close(26 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5433 attached [pid 5432] <... socket resumed>) = 3 [pid 5431] close(6 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(27 [pid 5050] <... unlink resumed>) = 0 [pid 5433] set_robust_list(0x5555566e0760, 24 [pid 5432] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(27 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... set_robust_list resumed>) = 0 [pid 5431] close(7 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(28 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 62 [pid 5433] chdir("./60" [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(28 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... chdir resumed>) = 0 [pid 5432] <... socket resumed>) = 4 [pid 5431] close(8 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(29 [pid 5433] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(29 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... prctl resumed>) = 0 [pid 5431] close(9 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] setpgid(0, 0 [pid 5432] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] exit_group(0 [pid 5429] exit_group(0 [pid 5433] <... setpgid resumed>) = 0 [pid 5431] close(10 [pid 5430] <... exit_group resumed>) = ? [pid 5429] <... exit_group resumed>) = ? [pid 5433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5432] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = 0 [pid 5431] close(11) = -1 EBADF (Bad file descriptor) [pid 5433] <... openat resumed>) = 3 [pid 5431] close(12 [pid 5433] write(3, "1000", 4 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] close(13 [pid 5433] <... write resumed>) = 4 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] close(3 [pid 5431] close(14) = -1 EBADF (Bad file descriptor) [pid 5433] <... close resumed>) = 0 [pid 5433] symlink("/dev/binderfs", "./binderfs" [pid 5431] close(15 [pid 5433] <... symlink resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5431] close(16 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] close(17) = -1 EBADF (Bad file descriptor) [pid 5431] close(18) = -1 EBADF (Bad file descriptor) [pid 5433] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5431] close(19) = -1 EBADF (Bad file descriptor) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5433] <... socket resumed>) = 3 [pid 5431] close(20 [pid 5433] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... socket resumed>) = 4 [pid 5431] close(21 [pid 5051] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5431] close(22 [pid 5051] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5433] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5433] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5431] close(23 [pid 5051] newfstatat(3, "", [pid 5433] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5432] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] memfd_create("syzkaller", 0 [pid 5431] close(24 [pid 5051] getdents64(3, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] newfstatat(AT_FDCWD, "./58/file0", [pid 5433] <... memfd_create resumed>) = 5 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5433] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5431] close(25 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] +++ exited with 0 +++ [pid 5433] <... mmap resumed>) = 0x7f1263f98000 [pid 5432] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./61/binderfs", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5432] memfd_create("syzkaller", 0 [pid 5431] close(26 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5433] mkdir("./file0", 000 [pid 5432] <... memfd_create resumed>) = 5 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] unlink("./61/binderfs" [pid 5050] <... openat resumed>) = 4 [pid 5433] <... mkdir resumed>) = 0 [pid 5432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5431] close(27 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5432] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5432] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5050] getdents64(4, [pid 5432] mkdir("./file0", 000 [pid 5431] close(28 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5433] symlink(NULL, NULL [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(4, [pid 5433] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5431] close(29 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5433] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5432] <... mkdir resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5050] close(4 [pid 5433] <... mount resumed>) = 0 [pid 5431] exit_group(0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... close resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] rmdir("./58/file0" [pid 5431] <... exit_group resumed>) = ? [pid 5052] <... openat resumed>) = 3 [pid 5051] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... rmdir resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] open(NULL, O_RDONLY [pid 5050] getdents64(3, [pid 5432] symlink(NULL, NULL [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] newfstatat(AT_FDCWD, "./61/file0", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5433] <... open resumed>) = -1 EFAULT (Bad address) [pid 5431] +++ exited with 0 +++ [pid 5052] getdents64(3, [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] close(3 [pid 5433] close(3 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... close resumed>) = 0 [pid 5432] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... close resumed>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5433] close(4 [pid 5432] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5433] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5050] rmdir("./58" [pid 5048] <... restart_syscall resumed>) = 0 [pid 5433] close(5 [pid 5432] <... mount resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./65/binderfs", [pid 5433] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] newfstatat(4, "", [pid 5050] <... rmdir resumed>) = 0 [pid 5433] close(6 [pid 5052] unlink("./65/binderfs" [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5432] open(NULL, O_RDONLY [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... unlink resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5433] close(7 [pid 5048] newfstatat(3, "", [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] close(3 [pid 5052] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5433] close(8 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] mkdir("./59", 0777 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] getdents64(4, [pid 5050] <... mkdir resumed>) = 0 [pid 5048] getdents64(3, [pid 5433] close(9 [pid 5052] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5433] close(10 [pid 5052] newfstatat(AT_FDCWD, "./65/file0", [pid 5051] close(4 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5048] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5432] close(4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5433] close(11 [pid 5052] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] rmdir("./61/file0" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] newfstatat(AT_FDCWD, "./58/binderfs", [pid 5433] close(12 [pid 5052] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5433] close(13 [pid 5052] newfstatat(4, "", [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5048] unlink("./58/binderfs" [pid 5433] close(14 [pid 5432] close(5 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = 0 [pid 5052] getdents64(4, [pid 5051] close(3 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... unlink resumed>) = 0 [pid 5433] close(15 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... close resumed>) = 0 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] close(6 [pid 5052] getdents64(4, [pid 5051] rmdir("./61" [pid 5050] close(3 [pid 5048] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] close(16 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... close resumed>) = 0 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5051] <... rmdir resumed>) = 0 [pid 5433] close(17 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... umount2 resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5432] close(7 [pid 5052] rmdir("./65/file0" [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] close(18) = -1 EBADF (Bad file descriptor) [pid 5433] close(19) = -1 EBADF (Bad file descriptor) [pid 5433] close(20 [pid 5048] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5433] close(21 [pid 5052] getdents64(3, [pid 5051] mkdir("./62", 0777 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5433] close(22) = -1 EBADF (Bad file descriptor) [pid 5433] close(23 [pid 5432] close(8 [pid 5052] close(3 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] close(24 [pid 5432] close(9 [pid 5052] <... close resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./65" [pid 5433] close(25 [pid 5432] close(10 [pid 5048] newfstatat(AT_FDCWD, "./58/file0", [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5434 attached [pid 5433] close(26 [pid 5432] close(11 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 61 [pid 5048] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5434] set_robust_list(0x5555566e0760, 24 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5434] <... set_robust_list resumed>) = 0 [pid 5433] close(27 [pid 5432] close(12 [pid 5052] mkdir("./66", 0777 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5434] chdir("./59" [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 4 [pid 5433] close(28 [pid 5432] close(13 [pid 5051] close(3 [pid 5048] newfstatat(4, "", [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5433] close(29 [pid 5432] close(14 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] getdents64(4, [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] exit_group(0 [pid 5434] <... chdir resumed>) = 0 [pid 5433] <... exit_group resumed>) = ? [pid 5432] close(15 [pid 5052] <... mkdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... prctl resumed>) = 0 [pid 5433] +++ exited with 0 +++ [pid 5432] close(16 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5048] getdents64(4, [pid 5434] setpgid(0, 0 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5434] <... setpgid resumed>) = 0 [pid 5432] close(17 [pid 5052] <... openat resumed>) = 3 [pid 5048] close(4 [pid 5434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5048] <... close resumed>) = 0 ./strace-static-x86_64: Process 5435 attached [pid 5432] close(18 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] rmdir("./58/file0" [pid 5435] set_robust_list(0x5555566e0760, 24 [pid 5434] <... openat resumed>) = 3 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 64 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... rmdir resumed>) = 0 [pid 5435] <... set_robust_list resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5432] close(19 [pid 5435] chdir("./62" [pid 5434] write(3, "1000", 4 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5049] newfstatat(3, "", [pid 5435] <... chdir resumed>) = 0 [pid 5434] <... write resumed>) = 4 [pid 5432] close(20 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, [pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5434] close(3 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... prctl resumed>) = 0 [pid 5049] getdents64(3, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5435] setpgid(0, 0 [pid 5048] close(3 [pid 5435] <... setpgid resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... close resumed>) = 0 [pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5432] close(21) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = 0 [pid 5432] close(22 [pid 5049] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] rmdir("./58" [pid 5435] <... openat resumed>) = 3 [pid 5434] symlink("/dev/binderfs", "./binderfs" [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... rmdir resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./60/binderfs", [pid 5435] write(3, "1000", 4 [pid 5434] <... symlink resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5432] close(23) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5436 attached [pid 5435] <... write resumed>) = 4 [pid 5432] close(24 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 68 [pid 5049] unlink("./60/binderfs" [pid 5436] set_robust_list(0x5555566e0760, 24 [pid 5435] close(3 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5048] mkdir("./59", 0777 [pid 5436] <... set_robust_list resumed>) = 0 [pid 5435] <... close resumed>) = 0 [pid 5434] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5432] close(25 [pid 5048] <... mkdir resumed>) = 0 [pid 5436] chdir("./66" [pid 5435] symlink("/dev/binderfs", "./binderfs" [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5434] <... socket resumed>) = 3 [pid 5432] close(26 [pid 5434] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] close(27) = -1 EBADF (Bad file descriptor) [pid 5432] close(28 [pid 5436] <... chdir resumed>) = 0 [pid 5435] <... symlink resumed>) = 0 [pid 5434] <... socket resumed>) = 4 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = 0 [pid 5432] close(29) = -1 EBADF (Bad file descriptor) [pid 5436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5436] <... prctl resumed>) = 0 [pid 5435] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5434] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5432] exit_group(0 [pid 5049] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 3 [pid 5436] setpgid(0, 0 [pid 5432] <... exit_group resumed>) = ? [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5436] <... setpgid resumed>) = 0 [pid 5435] <... socket resumed>) = 3 [pid 5049] newfstatat(AT_FDCWD, "./60/file0", [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5435] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5436] <... openat resumed>) = 3 [pid 5435] <... socket resumed>) = 4 [pid 5049] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] close(3 [pid 5434] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... close resumed>) = 0 [pid 5436] write(3, "1000", 4 [pid 5435] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5436] <... write resumed>) = 4 [pid 5435] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5435] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] <... openat resumed>) = 4 [pid 5435] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5436] close(3 [pid 5435] memfd_create("syzkaller", 0 [pid 5049] newfstatat(4, "", [pid 5434] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5436] <... close resumed>) = 0 [pid 5434] memfd_create("syzkaller", 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5436] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5434] <... memfd_create resumed>) = 5 [pid 5432] +++ exited with 0 +++ [pid 5049] getdents64(4, [pid 5436] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5435] <... memfd_create resumed>) = 5 [pid 5434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5436] <... socket resumed>) = 3 [pid 5435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5434] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] getdents64(4, [pid 5436] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5435] <... mmap resumed>) = 0x7f1263f98000 [pid 5434] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5436] <... socket resumed>) = 4 [pid 5435] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] <... restart_syscall resumed>) = 0 [pid 5049] close(4./strace-static-x86_64: Process 5437 attached [pid 5436] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5435] mkdir("./file0", 000 [pid 5434] mkdir("./file0", 000 [pid 5049] <... close resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 61 [pid 5436] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5435] <... mkdir resumed>) = 0 [pid 5049] rmdir("./60/file0" [pid 5437] set_robust_list(0x5555566e0760, 24 [pid 5436] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] <... set_robust_list resumed>) = 0 [pid 5436] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5435] symlink(NULL, NULL [pid 5434] <... mkdir resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5437] chdir("./59" [pid 5436] memfd_create("syzkaller", 0 [pid 5435] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5436] <... memfd_create resumed>) = 5 [pid 5053] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5435] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... openat resumed>) = 3 [pid 5437] <... chdir resumed>) = 0 [pid 5436] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] <... rmdir resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5049] getdents64(3, [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5436] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5435] <... mount resumed>) = 0 [pid 5434] symlink(NULL, NULL [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5436] mkdir("./file0", 000 [pid 5434] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] getdents64(3, [pid 5437] <... prctl resumed>) = 0 [pid 5436] <... mkdir resumed>) = 0 [pid 5435] open(NULL, O_RDONLY [pid 5434] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] close(3 [pid 5435] <... open resumed>) = -1 EFAULT (Bad address) [pid 5435] close(3) = 0 [pid 5437] setpgid(0, 0 [pid 5434] <... mount resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5437] <... setpgid resumed>) = 0 [pid 5435] close(4 [pid 5053] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5435] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] rmdir("./60" [pid 5436] symlink(NULL, NULL [pid 5435] close(5 [pid 5053] newfstatat(AT_FDCWD, "./60/binderfs", [pid 5049] <... rmdir resumed>) = 0 [pid 5436] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5435] <... close resumed>) = 0 [pid 5434] open(NULL, O_RDONLY [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5437] <... openat resumed>) = 3 [pid 5434] <... open resumed>) = -1 EFAULT (Bad address) [pid 5436] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5435] close(6 [pid 5053] unlink("./60/binderfs" [pid 5437] write(3, "1000", 4 [pid 5436] <... mount resumed>) = 0 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(3 [pid 5053] <... unlink resumed>) = 0 [pid 5049] mkdir("./61", 0777 [pid 5434] <... close resumed>) = 0 [pid 5434] close(4 [pid 5435] close(7 [pid 5434] <... close resumed>) = 0 [pid 5434] close(5 [pid 5437] <... write resumed>) = 4 [pid 5437] close(3 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5437] <... close resumed>) = 0 [pid 5435] close(8 [pid 5434] close(6 [pid 5053] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] symlink("/dev/binderfs", "./binderfs" [pid 5436] open(NULL, O_RDONLY [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... symlink resumed>) = 0 [pid 5436] <... open resumed>) = -1 EFAULT (Bad address) [pid 5435] close(9 [pid 5436] close(3 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] <... close resumed>) = 0 [pid 5435] close(10 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5436] close(4 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] <... close resumed>) = 0 [pid 5435] close(11 [pid 5049] <... openat resumed>) = 3 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(12) = -1 EBADF (Bad file descriptor) [pid 5436] close(5 [pid 5435] close(13 [pid 5437] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5436] <... close resumed>) = 0 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... socket resumed>) = 3 [pid 5434] close(7 [pid 5053] <... umount2 resumed>) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5437] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5436] close(6 [pid 5435] close(14 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(8 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] close(3 [pid 5436] close(7 [pid 5435] close(15 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./60/file0", [pid 5437] <... socket resumed>) = 4 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(9 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... close resumed>) = 0 [pid 5436] close(8 [pid 5435] close(16 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5437] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(10 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5437] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5437] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5434] close(11 [pid 5437] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(9 [pid 5435] close(17 [pid 5053] newfstatat(4, "", [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] memfd_create("syzkaller", 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5436] close(10 [pid 5435] close(18 [pid 5437] <... memfd_create resumed>) = 5 [pid 5434] close(12 [pid 5053] getdents64(4, [pid 5437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5437] <... mmap resumed>) = 0x7f1263f98000 [pid 5436] close(11 [pid 5435] close(19 [pid 5434] close(13 [pid 5053] getdents64(4, ./strace-static-x86_64: Process 5438 attached [pid 5437] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5438] set_robust_list(0x5555566e0760, 24 [pid 5437] mkdir("./file0", 000 [pid 5436] close(12 [pid 5435] close(20 [pid 5434] close(14 [pid 5053] close(4 [pid 5438] <... set_robust_list resumed>) = 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 63 [pid 5438] chdir("./61" [pid 5436] close(13 [pid 5435] close(21 [pid 5434] close(15 [pid 5053] rmdir("./60/file0" [pid 5438] <... chdir resumed>) = 0 [pid 5437] <... mkdir resumed>) = 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5438] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5436] close(14 [pid 5435] close(22 [pid 5434] close(16 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(15 [pid 5438] <... prctl resumed>) = 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(16 [pid 5435] close(23 [pid 5438] setpgid(0, 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... setpgid resumed>) = 0 [pid 5436] close(17 [pid 5435] close(24 [pid 5437] symlink(NULL, NULL [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(17 [pid 5053] getdents64(3, [pid 5438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5437] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5436] close(18 [pid 5435] close(25 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5438] <... openat resumed>) = 3 [pid 5437] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(18 [pid 5053] close(3 [pid 5436] close(19 [pid 5435] close(26 [pid 5438] write(3, "1000", 4 [pid 5437] <... mount resumed>) = 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5438] <... write resumed>) = 4 [pid 5436] close(20 [pid 5435] close(27 [pid 5434] close(19 [pid 5438] close(3 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./60" [pid 5438] <... close resumed>) = 0 [pid 5437] open(NULL, O_RDONLY [pid 5436] close(21 [pid 5435] close(28 [pid 5434] close(20 [pid 5053] <... rmdir resumed>) = 0 [pid 5438] symlink("/dev/binderfs", "./binderfs" [pid 5437] <... open resumed>) = -1 EFAULT (Bad address) [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] close(3 [pid 5434] close(21 [pid 5438] <... symlink resumed>) = 0 [pid 5437] <... close resumed>) = 0 [pid 5436] close(22 [pid 5435] close(29 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(22 [pid 5438] <... socket resumed>) = 3 [pid 5437] close(4 [pid 5436] close(23 [pid 5435] exit_group(0 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./61", 0777 [pid 5438] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5437] <... close resumed>) = 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... exit_group resumed>) = ? [pid 5434] close(23 [pid 5053] <... mkdir resumed>) = 0 [pid 5438] <... socket resumed>) = 4 [pid 5437] close(5 [pid 5436] close(24 [pid 5437] <... close resumed>) = 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] +++ exited with 0 +++ [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(25 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5438] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5437] close(6 [pid 5436] close(26 [pid 5434] close(24 [pid 5438] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5438] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5437] close(7 [pid 5436] close(27 [pid 5434] close(25 [pid 5053] <... openat resumed>) = 3 [pid 5051] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5438] memfd_create("syzkaller", 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] close(8 [pid 5434] close(26 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] close(9 [pid 5434] close(27 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(28 [pid 5437] close(10) = -1 EBADF (Bad file descriptor) [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] close(11 [pid 5436] close(29 [pid 5438] <... memfd_create resumed>) = 5 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5437] close(12 [pid 5436] exit_group(0 [pid 5434] close(28 [pid 5051] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5438] <... mmap resumed>) = 0x7f1263f98000 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] <... exit_group resumed>) = ? [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... openat resumed>) = 3 [pid 5438] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5437] close(13 [pid 5436] +++ exited with 0 +++ [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] newfstatat(3, "", [pid 5438] mkdir("./file0", 000 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(29 [pid 5053] close(3 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5438] <... mkdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(3, [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5437] close(14 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] exit_group(0 [pid 5438] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5437] close(15 [pid 5438] <... mount resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... exit_group resumed>) = ? [pid 5437] close(16 [pid 5051] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./62/binderfs" [pid 5438] open(NULL, O_RDONLY [pid 5051] <... unlink resumed>) = 0 [pid 5438] <... open resumed>) = -1 EFAULT (Bad address) [pid 5438] close(3) = 0 [pid 5051] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5438] close(4 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 63 [pid 5438] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5439 attached [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(5) = 0 [pid 5437] close(17 [pid 5051] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] set_robust_list(0x5555566e0760, 24 [pid 5438] close(6 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(7 [pid 5051] newfstatat(AT_FDCWD, "./62/file0", [pid 5439] <... set_robust_list resumed>) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5438] close(8 [pid 5437] close(18 [pid 5439] chdir("./61" [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] <... chdir resumed>) = 0 [pid 5438] close(9 [pid 5437] close(19 [pid 5052] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(10 [pid 5051] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] +++ exited with 0 +++ [pid 5051] <... openat resumed>) = 4 [pid 5439] <... prctl resumed>) = 0 [pid 5438] close(11 [pid 5437] close(20 [pid 5052] <... openat resumed>) = 3 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(4, "", [pid 5438] close(12 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5438] close(13 [pid 5051] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5438] close(14) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5438] close(15) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5438] close(16 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(3, "", [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5438] close(17 [pid 5051] <... close resumed>) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5438] close(18 [pid 5051] rmdir("./62/file0" [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(19 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] setpgid(0, 0 [pid 5438] close(20 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5051] <... rmdir resumed>) = 0 [pid 5050] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] <... setpgid resumed>) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(21 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(22 [pid 5051] getdents64(3, [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(AT_FDCWD, "./59/binderfs", [pid 5438] close(23 [pid 5051] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5438] close(24) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./62" [pid 5050] unlink("./59/binderfs" [pid 5438] close(25 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(26) = -1 EBADF (Bad file descriptor) [pid 5438] close(27) = -1 EBADF (Bad file descriptor) [pid 5438] close(28) = -1 EBADF (Bad file descriptor) [pid 5438] close(29) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./63", 0777 [pid 5050] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5438] exit_group(0 [pid 5437] close(21 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5438] <... exit_group resumed>) = ? [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = 0 [pid 5439] <... openat resumed>) = 3 [pid 5052] getdents64(3, [pid 5437] close(22) = -1 EBADF (Bad file descriptor) [pid 5439] write(3, "1000", 4 [pid 5437] close(23 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] newfstatat(AT_FDCWD, "./59/file0", [pid 5439] <... write resumed>) = 4 [pid 5437] close(24 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5439] close(3 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] close(25 [pid 5050] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] <... close resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./66/binderfs", [pid 5439] symlink("/dev/binderfs", "./binderfs" [pid 5437] close(26) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5437] close(27 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5439] <... symlink resumed>) = 0 [pid 5438] +++ exited with 0 +++ [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./66/binderfs" [pid 5051] close(3 [pid 5050] <... openat resumed>) = 4 [pid 5439] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5437] close(28 [pid 5051] <... close resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] <... unlink resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5439] <... socket resumed>) = 3 [pid 5437] close(29 [pid 5052] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5437] exit_group(0 [pid 5052] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(4, [pid 5049] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5050] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] newfstatat(3, "", [pid 5050] close(4) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] rmdir("./59/file0" [pid 5049] getdents64(3, [pid 5439] <... socket resumed>) = 4 [pid 5437] +++ exited with 0 +++ [pid 5052] newfstatat(AT_FDCWD, "./66/file0", [pid 5050] <... rmdir resumed>) = 0 [pid 5439] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5439] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0./strace-static-x86_64: Process 5440 attached ) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(3, [pid 5049] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5440] set_robust_list(0x5555566e0760, 24 [pid 5439] memfd_create("syzkaller", 0 [pid 5052] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 65 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5440] <... set_robust_list resumed>) = 0 [pid 5050] close(3 [pid 5049] newfstatat(AT_FDCWD, "./61/binderfs", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5440] chdir("./63" [pid 5439] <... memfd_create resumed>) = 5 [pid 5052] <... openat resumed>) = 4 [pid 5050] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5440] <... chdir resumed>) = 0 [pid 5439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] newfstatat(4, "", [pid 5050] rmdir("./59" [pid 5049] unlink("./61/binderfs" [pid 5048] <... openat resumed>) = 3 [pid 5440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5052] getdents64(4, [pid 5440] <... prctl resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] newfstatat(3, "", [pid 5440] setpgid(0, 0 [pid 5439] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] getdents64(4, [pid 5049] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5439] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] close(4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5440] <... setpgid resumed>) = 0 [pid 5439] mkdir("./file0", 000 [pid 5052] <... close resumed>) = 0 [pid 5050] mkdir("./60", 0777 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] getdents64(3, [pid 5440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5439] <... mkdir resumed>) = 0 [pid 5052] rmdir("./66/file0" [pid 5050] <... mkdir resumed>) = 0 [pid 5440] <... openat resumed>) = 3 [pid 5052] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] getdents64(3, [pid 5049] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5440] write(3, "1000", 4 [pid 5439] symlink(NULL, NULL [pid 5052] close(3 [pid 5049] newfstatat(AT_FDCWD, "./61/file0", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5440] <... write resumed>) = 4 [pid 5052] <... close resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(AT_FDCWD, "./59/binderfs", [pid 5440] close(3 [pid 5439] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] rmdir("./66" [pid 5050] <... openat resumed>) = 3 [pid 5049] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5440] <... close resumed>) = 0 [pid 5440] symlink("/dev/binderfs", "./binderfs" [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] unlink("./59/binderfs" [pid 5440] <... symlink resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... unlink resumed>) = 0 [pid 5439] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] mkdir("./67", 0777 [pid 5050] close(3 [pid 5049] <... openat resumed>) = 4 [pid 5440] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5050] <... close resumed>) = 0 [pid 5048] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5440] <... socket resumed>) = 3 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] newfstatat(4, "", [pid 5439] <... mount resumed>) = 0 [pid 5440] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5439] open(NULL, O_RDONLY [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5440] <... socket resumed>) = 4 [pid 5049] getdents64(4, [pid 5048] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, [pid 5048] newfstatat(AT_FDCWD, "./59/file0", [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] close(4) = 0 [pid 5049] rmdir("./61/file0") = 0 [pid 5048] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5440] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5440] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5048] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5440] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] <... openat resumed>) = 4 [pid 5440] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(4, "", [pid 5440] memfd_create("syzkaller", 0 [pid 5439] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5440] <... memfd_create resumed>) = 5 [pid 5052] <... openat resumed>) = 3 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 62 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5441 attached ) = 0x7f1263f98000 [pid 5439] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] close(3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5441] set_robust_list(0x5555566e0760, 24 [pid 5440] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... close resumed>) = 0 [pid 5441] <... set_robust_list resumed>) = 0 [pid 5440] mkdir("./file0", 000 [pid 5439] <... close resumed>) = 0 [pid 5052] close(3 [pid 5048] getdents64(4, [pid 5441] chdir("./60" [pid 5440] <... mkdir resumed>) = 0 [pid 5439] close(4 [pid 5052] <... close resumed>) = 0 [pid 5049] rmdir("./61" [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5441] <... chdir resumed>) = 0 [pid 5439] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... rmdir resumed>) = 0 [pid 5048] close(4 [pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5439] close(5 [pid 5048] <... close resumed>) = 0 [pid 5048] rmdir("./59/file0" [pid 5440] symlink(NULL, NULL [pid 5049] mkdir("./62", 0777 [pid 5441] <... prctl resumed>) = 0 [pid 5440] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5439] <... close resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5442 attached [pid 5441] setpgid(0, 0 [pid 5440] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5439] close(6 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 69 [pid 5048] <... rmdir resumed>) = 0 [pid 5441] <... setpgid resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] set_robust_list(0x5555566e0760, 24 [pid 5439] close(7 [pid 5442] <... set_robust_list resumed>) = 0 [pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5440] <... mount resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(3, [pid 5439] close(8 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5442] chdir("./67" [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5439] close(9 [pid 5049] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5441] <... openat resumed>) = 3 [pid 5442] <... chdir resumed>) = 0 [pid 5440] open(NULL, O_RDONLY [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... open resumed>) = -1 EFAULT (Bad address) [pid 5439] close(10 [pid 5048] <... close resumed>) = 0 [pid 5440] close(3 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] rmdir("./59" [pid 5442] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5441] write(3, "1000", 4 [pid 5440] <... close resumed>) = 0 [pid 5439] close(11 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... rmdir resumed>) = 0 [pid 5442] <... prctl resumed>) = 0 [pid 5441] <... write resumed>) = 4 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] setpgid(0, 0 [pid 5441] close(3 [pid 5440] close(4 [pid 5439] close(12 [pid 5049] close(3 [pid 5442] <... setpgid resumed>) = 0 [pid 5441] <... close resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] symlink("/dev/binderfs", "./binderfs" [pid 5440] <... close resumed>) = 0 [pid 5439] close(13 [pid 5049] <... close resumed>) = 0 [pid 5442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5440] close(5 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] mkdir("./60", 0777 [pid 5441] <... symlink resumed>) = 0 [pid 5440] <... close resumed>) = 0 [pid 5439] close(14 [pid 5048] <... mkdir resumed>) = 0 [pid 5442] <... openat resumed>) = 3 [pid 5441] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] write(3, "1000", 4 [pid 5441] <... socket resumed>) = 3 [pid 5442] <... write resumed>) = 4 [pid 5439] close(15 [pid 5442] close(3 [pid 5441] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = 0 [pid 5441] <... socket resumed>) = 4 [pid 5442] symlink("/dev/binderfs", "./binderfs" [pid 5439] close(16 [pid 5441] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5440] close(6 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5442] <... symlink resumed>) = 0 [pid 5441] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5442] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5441] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5439] close(17./strace-static-x86_64: Process 5443 attached [pid 5442] <... socket resumed>) = 3 [pid 5441] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5440] close(7 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5443] set_robust_list(0x5555566e0760, 24 [pid 5442] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5441] memfd_create("syzkaller", 0 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] close(18 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 64 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5443] <... set_robust_list resumed>) = 0 [pid 5440] close(8 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5443] chdir("./62" [pid 5442] <... socket resumed>) = 4 [pid 5441] <... memfd_create resumed>) = 5 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] close(19 [pid 5048] <... close resumed>) = 0 [pid 5443] <... chdir resumed>) = 0 [pid 5442] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5441] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5440] close(9 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5442] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5441] <... mmap resumed>) = 0x7f1263f98000 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] close(20 [pid 5440] close(10) = -1 EBADF (Bad file descriptor) [pid 5440] close(11) = -1 EBADF (Bad file descriptor) [pid 5442] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5441] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5440] close(12 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... prctl resumed>) = 0 [pid 5442] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5441] mkdir("./file0", 000 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] close(21 [pid 5443] setpgid(0, 0 [pid 5440] close(13 [pid 5443] <... setpgid resumed>) = 0 [pid 5442] memfd_create("syzkaller", 0 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 62 ./strace-static-x86_64: Process 5444 attached [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5440] close(14 [pid 5439] close(22 [pid 5442] <... memfd_create resumed>) = 5 [pid 5444] set_robust_list(0x5555566e0760, 24 [pid 5443] <... openat resumed>) = 3 [pid 5441] <... mkdir resumed>) = 0 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... set_robust_list resumed>) = 0 [pid 5441] symlink(NULL, NULL [pid 5440] close(15 [pid 5439] close(23 [pid 5443] write(3, "1000", 4 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] chdir("./60" [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... write resumed>) = 4 [pid 5442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5440] close(16 [pid 5439] close(24 [pid 5444] <... chdir resumed>) = 0 [pid 5443] close(3 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5443] <... close resumed>) = 0 [pid 5441] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5440] close(17 [pid 5439] close(25 [pid 5444] <... prctl resumed>) = 0 [pid 5443] symlink("/dev/binderfs", "./binderfs" [pid 5441] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... symlink resumed>) = 0 [pid 5442] <... mmap resumed>) = 0x7f1263f98000 [pid 5440] close(18 [pid 5439] close(26 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(19 [pid 5439] close(27 [pid 5443] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] setpgid(0, 0 [pid 5443] <... socket resumed>) = 3 [pid 5441] <... mount resumed>) = 0 [pid 5440] close(20 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... setpgid resumed>) = 0 [pid 5442] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] close(28 [pid 5443] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5440] close(21 [pid 5444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5443] <... socket resumed>) = 4 [pid 5442] mkdir("./file0", 000 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5440] close(22 [pid 5439] close(29 [pid 5443] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5440] close(23 [pid 5443] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] exit_group(0 [pid 5443] memfd_create("syzkaller", 0 [pid 5442] <... mkdir resumed>) = 0 [pid 5441] open(NULL, O_RDONLY [pid 5440] close(24 [pid 5439] <... exit_group resumed>) = ? [pid 5442] symlink(NULL, NULL [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... openat resumed>) = 3 [pid 5443] <... memfd_create resumed>) = 5 [pid 5441] <... open resumed>) = -1 EFAULT (Bad address) [pid 5440] close(25) = -1 EBADF (Bad file descriptor) [pid 5443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5440] close(26 [pid 5443] <... mmap resumed>) = 0x7f1263f98000 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(27 [pid 5439] +++ exited with 0 +++ [pid 5442] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5441] close(3 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5443] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5442] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5444] write(3, "1000", 4 [pid 5443] mkdir("./file0", 000 [pid 5440] close(28 [pid 5444] <... write resumed>) = 4 [pid 5443] <... mkdir resumed>) = 0 [pid 5442] <... mount resumed>) = 0 [pid 5441] <... close resumed>) = 0 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5053] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] close(3 [pid 5441] close(4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5444] <... close resumed>) = 0 [pid 5440] close(29 [pid 5053] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5444] symlink("/dev/binderfs", "./binderfs" [pid 5442] open(NULL, O_RDONLY [pid 5441] <... close resumed>) = 0 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5443] symlink(NULL, NULL [pid 5441] close(5 [pid 5440] exit_group(0 [pid 5053] newfstatat(3, "", [pid 5444] <... symlink resumed>) = 0 [pid 5443] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5441] <... close resumed>) = 0 [pid 5440] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5444] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5443] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5442] <... open resumed>) = -1 EFAULT (Bad address) [pid 5441] close(6 [pid 5440] +++ exited with 0 +++ [pid 5053] getdents64(3, [pid 5444] <... socket resumed>) = 3 [pid 5442] close(3 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5444] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5443] <... mount resumed>) = 0 [pid 5442] <... close resumed>) = 0 [pid 5441] close(7 [pid 5053] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5444] <... socket resumed>) = 4 [pid 5443] open(NULL, O_RDONLY [pid 5442] close(4 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5444] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5443] <... open resumed>) = -1 EFAULT (Bad address) [pid 5442] <... close resumed>) = 0 [pid 5441] close(8 [pid 5053] newfstatat(AT_FDCWD, "./61/binderfs", [pid 5444] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5443] close(3 [pid 5442] close(5 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5444] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5443] <... close resumed>) = 0 [pid 5442] <... close resumed>) = 0 [pid 5441] close(9 [pid 5444] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5442] close(6 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./61/binderfs" [pid 5051] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] close(4 [pid 5444] memfd_create("syzkaller", 0 [pid 5443] <... close resumed>) = 0 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(10 [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5444] <... memfd_create resumed>) = 5 [pid 5442] close(7 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] close(5 [pid 5441] close(11 [pid 5051] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5443] <... close resumed>) = 0 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5444] <... mmap resumed>) = 0x7f1263f98000 [pid 5443] close(6 [pid 5442] close(8 [pid 5441] close(12 [pid 5444] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5444] mkdir("./file0", 000 [pid 5443] close(7 [pid 5442] close(9 [pid 5441] close(13 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] close(8 [pid 5441] close(14 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(10 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./61/file0", [pid 5443] close(9 [pid 5441] close(15 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... mkdir resumed>) = 0 [pid 5443] close(10 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(16 [pid 5053] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] close(11 [pid 5442] close(11 [pid 5441] close(17 [pid 5053] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5444] symlink(NULL, NULL [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5051] newfstatat(AT_FDCWD, "./63/binderfs", [pid 5443] close(12 [pid 5442] close(12 [pid 5441] close(18 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(13 [pid 5441] close(19 [pid 5444] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5443] close(13 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5051] unlink("./63/binderfs" [pid 5444] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(14 [pid 5441] close(20 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5443] close(14 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(15 [pid 5441] close(21 [pid 5053] getdents64(4, [pid 5443] close(15 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] close(16 [pid 5444] <... mount resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(16 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] close(17 [pid 5441] close(22 [pid 5053] getdents64(4, [pid 5051] <... umount2 resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5443] close(18 [pid 5053] close(4 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] close(19 [pid 5053] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./61/file0" [pid 5443] close(20 [pid 5051] newfstatat(AT_FDCWD, "./63/file0", [pid 5444] open(NULL, O_RDONLY [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] close(21 [pid 5442] close(17 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] close(22) = -1 EBADF (Bad file descriptor) [pid 5443] close(23) = -1 EBADF (Bad file descriptor) [pid 5443] close(24) = -1 EBADF (Bad file descriptor) [pid 5443] close(25) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] close(26 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5051] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5443] close(27 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5053] close(3) = 0 [pid 5053] rmdir("./61") = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./62", 0777 [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5443] close(28 [pid 5053] <... mkdir resumed>) = 0 [pid 5051] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5444] <... open resumed>) = -1 EFAULT (Bad address) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(23 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] getdents64(4, [pid 5444] close(3 [pid 5443] close(29 [pid 5442] close(18 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5444] <... close resumed>) = 0 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(24 [pid 5444] close(4 [pid 5442] close(19 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = 0 [pid 5443] exit_group(0 [pid 5442] close(20 [pid 5441] close(25 [pid 5053] <... openat resumed>) = 3 [pid 5051] close(4 [pid 5444] close(5 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5443] <... exit_group resumed>) = ? [pid 5442] close(21 [pid 5441] close(26 [pid 5051] rmdir("./63/file0" [pid 5444] <... close resumed>) = 0 [pid 5443] +++ exited with 0 +++ [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... rmdir resumed>) = 0 [pid 5444] close(6 [pid 5442] close(22 [pid 5441] close(27 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(7 [pid 5442] close(23 [pid 5441] close(28 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(24 [pid 5441] close(29 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(25 [pid 5053] close(3 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] exit_group(0 [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(3, [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(26 [pid 5441] <... exit_group resumed>) = ? [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5444] close(8 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(27 [pid 5441] +++ exited with 0 +++ [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5444] close(9 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(28 [pid 5051] close(3 [pid 5444] close(10 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(29 [pid 5444] close(11 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] exit_group(0 [pid 5051] rmdir("./63" [pid 5050] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] close(12 [pid 5442] <... exit_group resumed>) = ? [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... openat resumed>) = 3 [pid 5049] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5445 attached [pid 5444] close(13 [pid 5442] +++ exited with 0 +++ [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 64 [pid 5051] mkdir("./64", 0777 [pid 5050] newfstatat(3, "", [pid 5049] newfstatat(3, "", [pid 5445] set_robust_list(0x5555566e0760, 24 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] <... set_robust_list resumed>) = 0 [pid 5444] close(14 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5445] chdir("./62" [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(3, [pid 5049] getdents64(3, [pid 5444] close(15 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5445] <... chdir resumed>) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... mkdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5444] close(16 [pid 5445] <... prctl resumed>) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] setpgid(0, 0 [pid 5444] close(17 [pid 5052] <... openat resumed>) = 3 [pid 5050] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5049] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... setpgid resumed>) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(AT_FDCWD, "./60/binderfs", [pid 5444] close(18 [pid 5049] unlink("./62/binderfs" [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5444] close(19 [pid 5052] newfstatat(3, "", [pid 5049] <... unlink resumed>) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] <... openat resumed>) = 3 [pid 5444] close(20 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] write(3, "1000", 4 [pid 5444] close(21 [pid 5052] getdents64(3, [pid 5051] close(3 [pid 5050] unlink("./60/binderfs" [pid 5445] <... write resumed>) = 4 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] close(3 [pid 5444] close(22 [pid 5051] <... close resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5049] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... close resumed>) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] symlink("/dev/binderfs", "./binderfs" [pid 5444] close(23 [pid 5445] <... symlink resumed>) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5444] close(24) = -1 EBADF (Bad file descriptor) [pid 5445] <... socket resumed>) = 3 [pid 5444] close(25 [pid 5052] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5445] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5444] close(26) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./67/binderfs", [pid 5050] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... socket resumed>) = 4 [pid 5444] close(27) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5444] close(28) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./67/binderfs" [pid 5050] newfstatat(AT_FDCWD, "./60/file0", [pid 5049] newfstatat(AT_FDCWD, "./62/file0", [pid 5444] close(29 [pid 5052] <... unlink resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5444] exit_group(0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5444] <... exit_group resumed>) = ? [pid 5050] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5445] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5050] <... openat resumed>) = 4 [pid 5049] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5446 attached [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 66 [pid 5050] newfstatat(4, "", [pid 5049] newfstatat(4, "", [pid 5446] set_robust_list(0x5555566e0760, 24 [pid 5445] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(4, [pid 5049] getdents64(4, [pid 5446] <... set_robust_list resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5446] chdir("./64" [pid 5052] newfstatat(AT_FDCWD, "./67/file0", [pid 5050] getdents64(4, [pid 5049] getdents64(4, [pid 5446] <... chdir resumed>) = 0 [pid 5444] +++ exited with 0 +++ [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5445] memfd_create("syzkaller", 0 [pid 5052] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] close(4 [pid 5049] close(4 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... memfd_create resumed>) = 5 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5048] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, [pid 5445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... mmap resumed>) = 0x7f1263f98000 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./60/binderfs", [pid 5445] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5445] mkdir("./file0", 000 [pid 5048] unlink("./60/binderfs") = 0 [pid 5048] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... mkdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5445] symlink(NULL, NULL [pid 5050] <... close resumed>) = 0 [pid 5049] rmdir("./62/file0" [pid 5048] <... umount2 resumed>) = 0 [pid 5050] rmdir("./60/file0" [pid 5049] <... rmdir resumed>) = 0 [pid 5048] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./60/file0", [pid 5445] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] getdents64(3, [pid 5048] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5446] <... prctl resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(3, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] close(3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] close(3 [pid 5048] <... openat resumed>) = 4 [pid 5446] setpgid(0, 0 [pid 5445] <... mount resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5050] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] rmdir("./60" [pid 5049] rmdir("./62" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5445] open(NULL, O_RDONLY [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, [pid 5050] mkdir("./61", 0777 [pid 5049] mkdir("./63", 0777 [pid 5048] getdents64(4, [pid 5445] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5445] close(3 [pid 5052] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5446] <... setpgid resumed>) = 0 [pid 5052] close(4 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... close resumed>) = 0 [pid 5446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5445] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5048] rmdir("./60/file0" [pid 5446] <... openat resumed>) = 3 [pid 5445] close(4 [pid 5052] rmdir("./67/file0" [pid 5050] <... openat resumed>) = 3 [pid 5048] <... rmdir resumed>) = 0 [pid 5446] write(3, "1000", 4 [pid 5445] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] getdents64(3, [pid 5445] close(5) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5445] close(6) = -1 EBADF (Bad file descriptor) [pid 5445] close(7 [pid 5049] close(3 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] close(8 [pid 5049] <... close resumed>) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] close(9 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] close(10 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] close(11 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] close(3 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5050] close(3 [pid 5048] <... close resumed>) = 0 [pid 5446] <... write resumed>) = 4 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] rmdir("./60" [pid 5446] close(3 [pid 5445] close(12 [pid 5052] close(3 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... rmdir resumed>) = 0 [pid 5446] <... close resumed>) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5446] symlink("/dev/binderfs", "./binderfs" [pid 5052] rmdir("./67" [pid 5446] <... symlink resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5446] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5052] mkdir("./68", 0777 [pid 5446] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] <... mkdir resumed>) = 0 [pid 5446] <... socket resumed>) = 4 [pid 5445] close(13) = -1 EBADF (Bad file descriptor) [pid 5446] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] mkdir("./61", 0777 [pid 5446] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5446] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5445] close(14 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 65 [pid 5048] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5447 attached [pid 5446] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] set_robust_list(0x5555566e0760, 24 [pid 5446] memfd_create("syzkaller", 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 63 [pid 5447] <... set_robust_list resumed>) = 0 [pid 5445] close(15 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5447] chdir("./63" [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5447] <... chdir resumed>) = 0 [pid 5445] close(16 [pid 5052] close(3 [pid 5447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5446] <... memfd_create resumed>) = 5 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5447] <... prctl resumed>) = 0 [pid 5445] close(17./strace-static-x86_64: Process 5448 attached [pid 5447] setpgid(0, 0 [pid 5446] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5447] <... setpgid resumed>) = 0 [pid 5445] close(18 [pid 5048] <... openat resumed>) = 3 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] set_robust_list(0x5555566e0760, 24 [pid 5447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5446] <... mmap resumed>) = 0x7f1263f98000 [pid 5445] close(19 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5445] close(20 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] mkdir("./file0", 000 [pid 5445] close(21 [pid 5048] close(3 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... set_robust_list resumed>) = 0 [pid 5447] <... openat resumed>) = 3 [pid 5446] <... mkdir resumed>) = 0 [pid 5445] close(22 [pid 5048] <... close resumed>) = 0 [pid 5448] chdir("./61" [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5447] write(3, "1000", 4 [pid 5445] close(23 [pid 5448] <... chdir resumed>) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] close(24 [pid 5448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... prctl resumed>) = 0 [pid 5445] close(25 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 70 ./strace-static-x86_64: Process 5449 attached [pid 5448] setpgid(0, 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... setpgid resumed>) = 0 [pid 5447] <... write resumed>) = 4 [pid 5445] close(26 [pid 5449] set_robust_list(0x5555566e0760, 24 [pid 5448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] close(27 [pid 5447] close(3 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] <... set_robust_list resumed>) = 0 [pid 5447] <... close resumed>) = 0 [pid 5445] close(28 [pid 5447] symlink("/dev/binderfs", "./binderfs" [pid 5446] symlink(NULL, NULL [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] chdir("./68" [pid 5448] <... openat resumed>) = 3 [pid 5447] <... symlink resumed>) = 0 [pid 5446] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5445] close(29 [pid 5446] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... mount resumed>) = 0 [pid 5445] exit_group(0) = ? [pid 5449] <... chdir resumed>) = 0 [pid 5448] write(3, "1000", 4 [pid 5446] open(NULL, O_RDONLY [pid 5448] <... write resumed>) = 4 [pid 5446] <... open resumed>) = -1 EFAULT (Bad address) [pid 5448] close(3 [pid 5446] close(3 [pid 5448] <... close resumed>) = 0 [pid 5446] <... close resumed>) = 0 [pid 5448] symlink("/dev/binderfs", "./binderfs" [pid 5446] close(4 [pid 5448] <... symlink resumed>) = 0 [pid 5446] <... close resumed>) = 0 [pid 5446] close(5 [pid 5445] +++ exited with 0 +++ ./strace-static-x86_64: Process 5450 attached [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5448] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5447] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5446] <... close resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 63 [pid 5448] <... socket resumed>) = 3 [pid 5446] close(6 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5053] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5448] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5446] close(7 [pid 5053] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5449] <... prctl resumed>) = 0 [pid 5448] <... socket resumed>) = 4 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5450] set_robust_list(0x5555566e0760, 24 [pid 5449] setpgid(0, 0 [pid 5448] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5447] <... socket resumed>) = 3 [pid 5446] close(8 [pid 5450] <... set_robust_list resumed>) = 0 [pid 5449] <... setpgid resumed>) = 0 [pid 5448] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5447] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5450] chdir("./61" [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5448] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5446] close(9 [pid 5448] memfd_create("syzkaller", 0 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5446] close(10 [pid 5053] getdents64(3, [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5446] close(11 [pid 5053] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5446] close(12 [pid 5053] newfstatat(AT_FDCWD, "./62/binderfs", [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5446] close(13 [pid 5053] unlink("./62/binderfs" [pid 5450] <... chdir resumed>) = 0 [pid 5449] <... openat resumed>) = 3 [pid 5447] <... socket resumed>) = 4 [pid 5053] <... unlink resumed>) = 0 [pid 5450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5448] <... memfd_create resumed>) = 5 [pid 5447] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] <... prctl resumed>) = 0 [pid 5449] write(3, "1000", 4 [pid 5447] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5446] close(14 [pid 5053] <... umount2 resumed>) = 0 [pid 5450] setpgid(0, 0 [pid 5449] <... write resumed>) = 4 [pid 5447] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] <... setpgid resumed>) = 0 [pid 5449] close(3 [pid 5447] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./62/file0", [pid 5449] <... close resumed>) = 0 [pid 5447] memfd_create("syzkaller", 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5446] close(15 [pid 5053] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5449] symlink("/dev/binderfs", "./binderfs" [pid 5448] <... mmap resumed>) = 0x7f1263f98000 [pid 5447] <... memfd_create resumed>) = 5 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(16 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5450] <... openat resumed>) = 3 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(17) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5448] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5446] close(18 [pid 5053] <... openat resumed>) = 4 [pid 5449] <... symlink resumed>) = 0 [pid 5448] mkdir("./file0", 000 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5446] close(19 [pid 5450] write(3, "1000", 4) = 4 [pid 5448] <... mkdir resumed>) = 0 [pid 5447] <... mmap resumed>) = 0x7f1263f98000 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5450] close(3 [pid 5449] <... socket resumed>) = 3 [pid 5448] symlink(NULL, NULL [pid 5447] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5446] close(20 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5450] <... close resumed>) = 0 [pid 5449] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5448] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5447] mkdir("./file0", 000 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5448] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5446] close(21 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5450] symlink("/dev/binderfs", "./binderfs" [pid 5449] <... socket resumed>) = 4 [pid 5448] <... mount resumed>) = 0 [pid 5447] <... mkdir resumed>) = 0 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5446] close(22 [pid 5450] <... symlink resumed>) = 0 [pid 5447] symlink(NULL, NULL [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] open(NULL, O_RDONLY [pid 5446] close(23 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5449] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5448] <... open resumed>) = -1 EFAULT (Bad address) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5450] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5449] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5448] close(3 [pid 5447] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5446] close(24 [pid 5053] <... close resumed>) = 0 [pid 5448] <... close resumed>) = 0 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./62/file0" [pid 5446] close(25 [pid 5448] close(4 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5447] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5449] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5446] close(26 [pid 5450] <... socket resumed>) = 3 [pid 5449] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5448] <... close resumed>) = 0 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(5 [pid 5446] close(27 [pid 5053] getdents64(3, [pid 5448] <... close resumed>) = 0 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5448] close(6 [pid 5447] <... mount resumed>) = 0 [pid 5450] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5446] close(28 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5449] memfd_create("syzkaller", 0 [pid 5448] close(7 [pid 5446] close(29 [pid 5053] <... close resumed>) = 0 [pid 5450] <... socket resumed>) = 4 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] <... memfd_create resumed>) = 5 [pid 5449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5448] close(8 [pid 5446] exit_group(0 [pid 5053] rmdir("./62" [pid 5447] open(NULL, O_RDONLY [pid 5450] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5449] <... mmap resumed>) = 0x7f1263f98000 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... exit_group resumed>) = ? [pid 5447] <... open resumed>) = -1 EFAULT (Bad address) [pid 5450] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5449] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5448] close(9 [pid 5053] <... rmdir resumed>) = 0 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./63", 0777 [pid 5448] close(10) = -1 EBADF (Bad file descriptor) [pid 5446] +++ exited with 0 +++ [pid 5053] <... mkdir resumed>) = 0 [pid 5448] close(11 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5448] close(12 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5448] close(13 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] <... openat resumed>) = 3 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(3, "", [pid 5448] close(14 [pid 5053] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5448] close(15 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5448] close(16 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5051] newfstatat(AT_FDCWD, "./64/binderfs", [pid 5448] close(17 [pid 5053] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5450] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5449] mkdir("./file0", 000 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(3 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] unlink("./64/binderfs" [pid 5450] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5449] <... mkdir resumed>) = 0 [pid 5448] close(18 [pid 5447] <... close resumed>) = 0 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(19 [pid 5450] memfd_create("syzkaller", 0 [pid 5449] symlink(NULL, NULL [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(4 [pid 5449] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5448] close(20 [pid 5450] <... memfd_create resumed>) = 5 [pid 5449] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5447] <... close resumed>) = 0 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(21) = -1 EBADF (Bad file descriptor) [pid 5449] <... mount resumed>) = 0 [pid 5448] close(22 [pid 5447] close(5 [pid 5051] <... unlink resumed>) = 0 [pid 5450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = 0 [pid 5051] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] <... mmap resumed>) = 0x7f1263f98000 [pid 5449] open(NULL, O_RDONLY [pid 5448] close(23 [pid 5447] close(6./strace-static-x86_64: Process 5451 attached [pid 5450] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5449] <... open resumed>) = -1 EFAULT (Bad address) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = 0 [pid 5451] set_robust_list(0x5555566e0760, 24 [pid 5448] close(24 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 65 [pid 5051] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] <... set_robust_list resumed>) = 0 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] chdir("./63" [pid 5448] close(25) = -1 EBADF (Bad file descriptor) [pid 5447] close(7 [pid 5051] newfstatat(AT_FDCWD, "./64/file0", [pid 5451] <... chdir resumed>) = 0 [pid 5448] close(26 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] <... prctl resumed>) = 0 [pid 5448] close(27 [pid 5051] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] setpgid(0, 0 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... setpgid resumed>) = 0 [pid 5448] close(28 [pid 5051] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5448] close(29 [pid 5051] <... openat resumed>) = 4 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] exit_group(0 [pid 5451] <... openat resumed>) = 3 [pid 5448] <... exit_group resumed>) = ? [pid 5051] newfstatat(4, "", [pid 5450] mkdir("./file0", 000 [pid 5449] close(3 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5447] close(8 [pid 5051] getdents64(4, [pid 5449] <... close resumed>) = 0 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5449] close(4 [pid 5447] close(9 [pid 5051] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5450] <... mkdir resumed>) = 0 [pid 5051] close(4 [pid 5450] symlink(NULL, NULL [pid 5449] <... close resumed>) = 0 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5449] close(5 [pid 5447] close(10 [pid 5051] rmdir("./64/file0" [pid 5451] write(3, "1000", 4 [pid 5450] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5449] <... close resumed>) = 0 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5451] <... write resumed>) = 4 [pid 5449] close(6 [pid 5447] close(11 [pid 5451] close(3 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5451] <... close resumed>) = 0 [pid 5450] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5449] close(7 [pid 5448] +++ exited with 0 +++ [pid 5447] close(12 [pid 5451] symlink("/dev/binderfs", "./binderfs" [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5451] <... symlink resumed>) = 0 [pid 5450] <... mount resumed>) = 0 [pid 5449] close(8 [pid 5447] close(13 [pid 5051] close(3 [pid 5451] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5451] <... socket resumed>) = 3 [pid 5450] open(NULL, O_RDONLY [pid 5449] close(9 [pid 5447] close(14 [pid 5051] rmdir("./64" [pid 5050] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5450] <... open resumed>) = -1 EFAULT (Bad address) [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... socket resumed>) = 4 [pid 5449] close(10 [pid 5447] close(15 [pid 5050] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5451] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5450] close(3 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5451] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5449] close(11 [pid 5447] close(16 [pid 5050] newfstatat(3, "", [pid 5051] mkdir("./65", 0777 [pid 5451] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5450] <... close resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... mkdir resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5451] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5447] close(17 [pid 5449] close(12 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] memfd_create("syzkaller", 0 [pid 5450] close(4 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(18 [pid 5451] <... memfd_create resumed>) = 5 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5447] close(19 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5451] <... mmap resumed>) = 0x7f1263f98000 [pid 5449] close(13 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5050] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(20 [pid 5451] mkdir("./file0", 000 [pid 5449] close(14 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... mkdir resumed>) = 0 [pid 5450] <... close resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(21 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(AT_FDCWD, "./61/binderfs", [pid 5450] close(5 [pid 5449] close(15 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(22 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = 0 [pid 5449] close(16 [pid 5447] close(23 [pid 5450] close(6 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5451] symlink(NULL, NULL [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(17 [pid 5447] close(24 [pid 5051] <... close resumed>) = 0 [pid 5050] unlink("./61/binderfs" [pid 5451] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5450] close(7 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... unlink resumed>) = 0 [pid 5451] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(18 [pid 5447] close(25 [pid 5451] <... mount resumed>) = 0 [pid 5450] close(8 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] open(NULL, O_RDONLY [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(19 [pid 5447] close(26 [pid 5050] <... umount2 resumed>) = 0 [pid 5451] <... open resumed>) = -1 EFAULT (Bad address) [pid 5450] close(9 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(20 [pid 5447] close(27 [pid 5451] close(3 [pid 5450] close(10 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] <... close resumed>) = 0 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(21 [pid 5447] close(28 [pid 5451] close(4 [pid 5450] close(11 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5452 attached [pid 5451] <... close resumed>) = 0 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(22 [pid 5447] close(29 [pid 5451] close(5 [pid 5450] close(12 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] set_robust_list(0x5555566e0760, 24 [pid 5451] <... close resumed>) = 0 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 67 [pid 5452] <... set_robust_list resumed>) = 0 [pid 5451] close(6 [pid 5450] close(13 [pid 5447] exit_group(0 [pid 5449] close(23 [pid 5050] newfstatat(AT_FDCWD, "./61/file0", [pid 5452] chdir("./65" [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... exit_group resumed>) = ? [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... chdir resumed>) = 0 [pid 5451] close(7 [pid 5450] close(14 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5452] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] <... prctl resumed>) = 0 [pid 5451] close(8 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5452] setpgid(0, 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... setpgid resumed>) = 0 [pid 5451] close(9 [pid 5050] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] close(10) = -1 EBADF (Bad file descriptor) [pid 5447] +++ exited with 0 +++ [pid 5050] <... openat resumed>) = 4 [pid 5452] <... openat resumed>) = 3 [pid 5451] close(11 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(24 [pid 5050] newfstatat(4, "", [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5451] close(12) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] write(3, "1000", 4 [pid 5451] close(13 [pid 5050] getdents64(4, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5452] <... write resumed>) = 4 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5452] close(3 [pid 5451] close(14 [pid 5452] <... close resumed>) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5452] symlink("/dev/binderfs", "./binderfs" [pid 5451] close(15 [pid 5050] getdents64(4, [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5452] <... symlink resumed>) = 0 [pid 5451] close(16 [pid 5050] close(4 [pid 5049] newfstatat(3, "", [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] close(17 [pid 5050] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5451] close(18 [pid 5050] rmdir("./61/file0" [pid 5049] getdents64(3, [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] close(19 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5452] <... socket resumed>) = 3 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] close(20 [pid 5452] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] close(21) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5049] newfstatat(AT_FDCWD, "./63/binderfs", [pid 5452] <... socket resumed>) = 4 [pid 5451] close(22 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5452] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5049] unlink("./63/binderfs" [pid 5452] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5451] close(23 [pid 5452] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5452] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5451] close(24 [pid 5450] close(15 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./61" [pid 5451] close(25 [pid 5452] memfd_create("syzkaller", 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(25 [pid 5452] <... memfd_create resumed>) = 5 [pid 5451] close(26 [pid 5450] close(16 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5049] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(26 [pid 5452] <... mmap resumed>) = 0x7f1263f98000 [pid 5451] close(27 [pid 5450] close(17 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(27 [pid 5050] mkdir("./62", 0777 [pid 5049] <... umount2 resumed>) = 0 [pid 5452] mkdir("./file0", 000 [pid 5451] close(28 [pid 5450] close(18 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... mkdir resumed>) = 0 [pid 5452] <... mkdir resumed>) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(28 [pid 5450] close(19 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(29 [pid 5450] close(20 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] close(29 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(21 [pid 5449] exit_group(0 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5452] symlink(NULL, NULL [pid 5451] exit_group(0 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] <... exit_group resumed>) = ? [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] newfstatat(AT_FDCWD, "./63/file0", [pid 5452] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5451] <... exit_group resumed>) = ? [pid 5450] close(22 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5452] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5451] +++ exited with 0 +++ [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] +++ exited with 0 +++ [pid 5049] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] <... mount resumed>) = 0 [pid 5450] close(23 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] close(3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(24 [pid 5050] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(25 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... openat resumed>) = 4 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] open(NULL, O_RDONLY [pid 5450] close(26 [pid 5049] newfstatat(4, "", [pid 5452] <... open resumed>) = -1 EFAULT (Bad address) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(27 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5452] close(3 [pid 5053] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5452] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5052] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, [pid 5452] close(4 [pid 5053] newfstatat(3, "", [pid 5052] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 64 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5452] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5453 attached [pid 5452] close(5 [pid 5053] getdents64(3, [pid 5052] newfstatat(3, "", [pid 5049] close(4 [pid 5453] set_robust_list(0x5555566e0760, 24 [pid 5452] <... close resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... close resumed>) = 0 [pid 5453] <... set_robust_list resumed>) = 0 [pid 5049] rmdir("./63/file0" [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(28 [pid 5453] chdir("./62" [pid 5452] close(6 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] close(29 [pid 5453] <... chdir resumed>) = 0 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] newfstatat(AT_FDCWD, "./63/binderfs", [pid 5052] getdents64(3, [pid 5453] <... prctl resumed>) = 0 [pid 5452] close(7 [pid 5450] exit_group(0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... rmdir resumed>) = 0 [pid 5453] setpgid(0, 0 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./63/binderfs" [pid 5450] <... exit_group resumed>) = ? [pid 5452] close(8) = -1 EBADF (Bad file descriptor) [pid 5452] close(9) = -1 EBADF (Bad file descriptor) [pid 5452] close(10) = -1 EBADF (Bad file descriptor) [pid 5452] close(11) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] close(12) = -1 EBADF (Bad file descriptor) [pid 5453] <... setpgid resumed>) = 0 [pid 5452] close(13 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./68/binderfs", [pid 5453] <... openat resumed>) = 3 [pid 5452] close(14 [pid 5450] +++ exited with 0 +++ [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] getdents64(3, [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] unlink("./68/binderfs" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5453] write(3, "1000", 4 [pid 5452] close(15 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5049] close(3 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5453] <... write resumed>) = 4 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5453] close(3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = 0 [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5453] <... close resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./63/file0", [pid 5453] symlink("/dev/binderfs", "./binderfs" [pid 5452] close(16 [pid 5052] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... close resumed>) = 0 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5453] <... symlink resumed>) = 0 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] rmdir("./63" [pid 5453] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5452] close(17 [pid 5053] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(AT_FDCWD, "./68/file0", [pid 5453] <... socket resumed>) = 3 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... rmdir resumed>) = 0 [pid 5453] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5452] close(18 [pid 5053] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5453] <... socket resumed>) = 4 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5052] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] mkdir("./64", 0777 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5452] close(19 [pid 5053] newfstatat(4, "", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... mkdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5453] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5452] close(20 [pid 5453] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] <... openat resumed>) = 4 [pid 5048] <... openat resumed>) = 3 [pid 5453] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5452] close(21 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] newfstatat(4, "", [pid 5048] newfstatat(3, "", [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5452] close(22 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] getdents64(3, [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(23 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5453] memfd_create("syzkaller", 0 [pid 5452] close(24 [pid 5049] close(3 [pid 5453] <... memfd_create resumed>) = 5 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5048] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5453] <... mmap resumed>) = 0x7f1263f98000 [pid 5452] close(25 [pid 5053] <... close resumed>) = 0 [pid 5052] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(AT_FDCWD, "./61/binderfs", [pid 5452] close(26 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5453] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5452] close(27 [pid 5053] rmdir("./63/file0" [pid 5052] <... close resumed>) = 0 [pid 5048] unlink("./61/binderfs" [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] rmdir("./68/file0" [pid 5048] <... unlink resumed>) = 0 [pid 5452] close(28 [pid 5052] <... rmdir resumed>) = 0 [pid 5048] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(29 [pid 5453] mkdir("./file0", 000 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5052] getdents64(3, [pid 5453] <... mkdir resumed>) = 0 [pid 5452] exit_group(0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5048] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] <... exit_group resumed>) = ? [pid 5052] close(3./strace-static-x86_64: Process 5454 attached [pid 5053] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5452] +++ exited with 0 +++ [pid 5053] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 66 [pid 5048] newfstatat(AT_FDCWD, "./61/file0", [pid 5454] set_robust_list(0x5555566e0760, 24 [pid 5052] rmdir("./68" [pid 5454] <... set_robust_list resumed>) = 0 [pid 5453] symlink(NULL, NULL [pid 5053] rmdir("./63" [pid 5052] <... rmdir resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5454] chdir("./64" [pid 5453] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5048] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5454] <... chdir resumed>) = 0 [pid 5453] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] mkdir("./69", 0777 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5053] mkdir("./64", 0777 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5048] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5454] setpgid(0, 0 [pid 5048] <... openat resumed>) = 4 [pid 5454] <... setpgid resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... mkdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5454] <... openat resumed>) = 3 [pid 5453] <... mount resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(4, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5454] write(3, "1000", 4 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... openat resumed>) = 3 [pid 5048] getdents64(4, [pid 5454] <... write resumed>) = 4 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5454] close(3 [pid 5048] close(4 [pid 5454] <... close resumed>) = 0 [pid 5454] symlink("/dev/binderfs", "./binderfs" [pid 5453] open(NULL, O_RDONLY [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] newfstatat(3, "", [pid 5048] <... close resumed>) = 0 [pid 5453] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... openat resumed>) = 3 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5454] <... symlink resumed>) = 0 [pid 5453] close(3 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5048] rmdir("./61/file0" [pid 5454] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5453] <... close resumed>) = 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] getdents64(3, [pid 5453] close(4 [pid 5053] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5454] <... socket resumed>) = 3 [pid 5453] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... rmdir resumed>) = 0 [pid 5454] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5048] getdents64(3, [pid 5453] close(5 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] close(3 [pid 5051] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5454] <... socket resumed>) = 4 [pid 5453] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] close(3) = 0 [pid 5048] rmdir("./61" [pid 5453] close(6) = -1 EBADF (Bad file descriptor) [pid 5453] close(7 [pid 5052] <... close resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(8 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] newfstatat(AT_FDCWD, "./65/binderfs", [pid 5453] close(9 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5454] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] mkdir("./62", 0777 [pid 5453] close(10) = -1 EBADF (Bad file descriptor) [pid 5453] close(11 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 66 [pid 5051] unlink("./65/binderfs" [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5455 attached [pid 5454] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5048] <... mkdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5455] set_robust_list(0x5555566e0760, 24 [pid 5454] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5455] <... set_robust_list resumed>) = 0 [pid 5454] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5453] close(12 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] chdir("./64" [pid 5453] close(13./strace-static-x86_64: Process 5456 attached [pid 5455] <... chdir resumed>) = 0 [pid 5454] memfd_create("syzkaller", 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5456] set_robust_list(0x5555566e0760, 24 [pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5454] <... memfd_create resumed>) = 5 [pid 5453] close(14 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 71 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5456] <... set_robust_list resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./65/file0", [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5455] <... prctl resumed>) = 0 [pid 5454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5455] setpgid(0, 0 [pid 5454] <... mmap resumed>) = 0x7f1263f98000 [pid 5048] close(3 [pid 5455] <... setpgid resumed>) = 0 [pid 5454] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... close resumed>) = 0 [pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5454] mkdir("./file0", 000 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5456] chdir("./69" [pid 5455] <... openat resumed>) = 3 [pid 5454] <... mkdir resumed>) = 0 [pid 5453] close(15 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5456] <... chdir resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5453] close(16 [pid 5051] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5456] <... prctl resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] setpgid(0, 0 [pid 5454] symlink(NULL, NULL [pid 5453] close(17 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5457 attached [pid 5456] <... setpgid resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5457] set_robust_list(0x5555566e0760, 24 [pid 5456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5455] write(3, "1000", 4 [pid 5454] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 64 [pid 5455] <... write resumed>) = 4 [pid 5454] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5455] close(3 [pid 5454] <... mount resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5457] <... set_robust_list resumed>) = 0 [pid 5456] <... openat resumed>) = 3 [pid 5455] <... close resumed>) = 0 [pid 5454] open(NULL, O_RDONLY [pid 5453] close(18 [pid 5051] newfstatat(4, "", [pid 5456] write(3, "1000", 4 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(19) = -1 EBADF (Bad file descriptor) [pid 5453] close(20) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5456] <... write resumed>) = 4 [pid 5453] close(21 [pid 5456] close(3 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5453] close(22 [pid 5457] chdir("./62" [pid 5456] <... close resumed>) = 0 [pid 5455] symlink("/dev/binderfs", "./binderfs" [pid 5454] <... open resumed>) = -1 EFAULT (Bad address) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5457] <... chdir resumed>) = 0 [pid 5456] symlink("/dev/binderfs", "./binderfs" [pid 5455] <... symlink resumed>) = 0 [pid 5454] close(3 [pid 5453] close(23 [pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5454] <... close resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5454] close(4 [pid 5457] <... prctl resumed>) = 0 [pid 5454] <... close resumed>) = 0 [pid 5453] close(24 [pid 5455] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5454] close(5 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5457] setpgid(0, 0 [pid 5456] <... symlink resumed>) = 0 [pid 5455] <... socket resumed>) = 3 [pid 5454] <... close resumed>) = 0 [pid 5453] close(25 [pid 5051] close(4 [pid 5456] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5455] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5454] close(6 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... setpgid resumed>) = 0 [pid 5456] <... socket resumed>) = 3 [pid 5455] <... socket resumed>) = 4 [pid 5453] close(26 [pid 5051] <... close resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(27) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./65/file0" [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(7) = -1 EBADF (Bad file descriptor) [pid 5454] close(8) = -1 EBADF (Bad file descriptor) [pid 5454] close(9 [pid 5455] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5455] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5454] close(10 [pid 5455] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5454] close(11 [pid 5456] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5455] memfd_create("syzkaller", 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(28 [pid 5456] <... socket resumed>) = 4 [pid 5455] <... memfd_create resumed>) = 5 [pid 5454] close(12 [pid 5456] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5455] <... mmap resumed>) = 0x7f1263f98000 [pid 5454] close(13 [pid 5453] close(29 [pid 5457] <... openat resumed>) = 3 [pid 5456] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5455] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5457] write(3, "1000", 4 [pid 5456] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5455] mkdir("./file0", 000 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... write resumed>) = 4 [pid 5457] close(3) = 0 [pid 5457] symlink("/dev/binderfs", "./binderfs" [pid 5456] memfd_create("syzkaller", 0 [pid 5457] <... symlink resumed>) = 0 [pid 5456] <... memfd_create resumed>) = 5 [pid 5455] <... mkdir resumed>) = 0 [pid 5453] exit_group(0 [pid 5454] close(14) = -1 EBADF (Bad file descriptor) [pid 5454] close(15) = -1 EBADF (Bad file descriptor) [pid 5454] close(16) = -1 EBADF (Bad file descriptor) [pid 5454] close(17 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5454] close(18 [pid 5051] <... close resumed>) = 0 [pid 5455] symlink(NULL, NULL [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./65" [pid 5457] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5455] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5454] close(19 [pid 5453] <... exit_group resumed>) = ? [pid 5051] <... rmdir resumed>) = 0 [pid 5455] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./66", 0777 [pid 5455] <... mount resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5455] open(NULL, O_RDONLY [pid 5454] close(20 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5456] <... mmap resumed>) = 0x7f1263f98000 [pid 5455] <... open resumed>) = -1 EFAULT (Bad address) [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5455] close(3 [pid 5454] close(21 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5455] <... close resumed>) = 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5457] <... socket resumed>) = 3 [pid 5454] close(22 [pid 5456] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5455] close(4 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5454] close(23 [pid 5051] <... close resumed>) = 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5457] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5456] mkdir("./file0", 000 [pid 5454] close(24 [pid 5457] <... socket resumed>) = 4 [pid 5455] <... close resumed>) = 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(5 [pid 5454] close(25 [pid 5455] <... close resumed>) = 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5455] close(6 [pid 5454] close(26 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(7 [pid 5454] close(27./strace-static-x86_64: Process 5458 attached [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] set_robust_list(0x5555566e0760, 24 [pid 5457] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5456] <... mkdir resumed>) = 0 [pid 5455] close(8 [pid 5454] close(28 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 68 [pid 5457] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] <... set_robust_list resumed>) = 0 [pid 5455] close(9 [pid 5454] close(29 [pid 5458] chdir("./66" [pid 5457] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] <... chdir resumed>) = 0 [pid 5455] close(10 [pid 5454] exit_group(0 [pid 5453] +++ exited with 0 +++ [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] <... exit_group resumed>) = ? [pid 5457] memfd_create("syzkaller", 0 [pid 5456] symlink(NULL, NULL [pid 5455] close(11 [pid 5454] +++ exited with 0 +++ [pid 5458] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5458] <... prctl resumed>) = 0 [pid 5455] close(12 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5458] setpgid(0, 0 [pid 5456] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... memfd_create resumed>) = 5 [pid 5455] close(13 [pid 5458] <... setpgid resumed>) = 0 [pid 5457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5456] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5457] <... mmap resumed>) = 0x7f1263f98000 [pid 5456] <... mount resumed>) = 0 [pid 5050] <... restart_syscall resumed>) = 0 [pid 5049] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5456] open(NULL, O_RDONLY [pid 5457] mkdir("./file0", 000 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5458] <... openat resumed>) = 3 [pid 5455] close(14 [pid 5049] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5456] <... open resumed>) = -1 EFAULT (Bad address) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(15 [pid 5049] <... openat resumed>) = 3 [pid 5456] close(3 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5458] write(3, "1000", 4 [pid 5455] close(16 [pid 5458] <... write resumed>) = 4 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(3 [pid 5455] close(17 [pid 5050] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5458] <... close resumed>) = 0 [pid 5456] <... close resumed>) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(18 [pid 5049] getdents64(3, [pid 5458] symlink("/dev/binderfs", "./binderfs" [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] <... symlink resumed>) = 0 [pid 5457] <... mkdir resumed>) = 0 [pid 5456] close(4 [pid 5455] close(19 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5458] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5457] symlink(NULL, NULL [pid 5456] <... close resumed>) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(20) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5458] <... socket resumed>) = 3 [pid 5455] close(21 [pid 5050] <... openat resumed>) = 3 [pid 5049] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5458] <... socket resumed>) = 4 [pid 5456] close(5 [pid 5455] close(22 [pid 5050] newfstatat(3, "", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5458] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5457] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5456] <... close resumed>) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] newfstatat(AT_FDCWD, "./64/binderfs", [pid 5458] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5457] <... mount resumed>) = 0 [pid 5456] close(6 [pid 5455] close(23 [pid 5050] getdents64(3, [pid 5458] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5455] close(24 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(7 [pid 5049] unlink("./64/binderfs" [pid 5458] memfd_create("syzkaller", 0 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(25 [pid 5049] <... unlink resumed>) = 0 [pid 5458] <... memfd_create resumed>) = 5 [pid 5457] open(NULL, O_RDONLY [pid 5456] close(8 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5457] <... open resumed>) = -1 EFAULT (Bad address) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(26 [pid 5458] <... mmap resumed>) = 0x7f1263f98000 [pid 5457] close(3 [pid 5456] close(9 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] <... close resumed>) = 0 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(27 [pid 5456] close(10 [pid 5050] newfstatat(AT_FDCWD, "./62/binderfs", [pid 5458] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] mkdir("./file0", 000 [pid 5457] close(4 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(28 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5457] <... close resumed>) = 0 [pid 5456] close(11 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] <... mkdir resumed>) = 0 [pid 5457] close(5 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(29 [pid 5050] unlink("./62/binderfs" [pid 5049] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] symlink(NULL, NULL [pid 5457] <... close resumed>) = 0 [pid 5456] close(12 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(13 [pid 5455] exit_group(0 [pid 5458] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5457] close(6 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... exit_group resumed>) = ? [pid 5049] newfstatat(AT_FDCWD, "./64/file0", [pid 5458] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(14 [pid 5050] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] <... mount resumed>) = 0 [pid 5457] close(7 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(15 [pid 5457] close(8 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] close(9 [pid 5456] close(16 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] close(10 [pid 5456] close(17 [pid 5050] newfstatat(AT_FDCWD, "./62/file0", [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5458] open(NULL, O_RDONLY [pid 5457] close(11 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5458] <... open resumed>) = -1 EFAULT (Bad address) [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(18 [pid 5049] <... openat resumed>) = 4 [pid 5458] close(3 [pid 5457] close(12 [pid 5455] +++ exited with 0 +++ [pid 5050] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] <... close resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5457] close(13 [pid 5456] close(19 [pid 5050] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(4, [pid 5458] close(4 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(14 [pid 5456] close(20 [pid 5050] <... openat resumed>) = 4 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5458] <... close resumed>) = 0 [pid 5457] close(15 [pid 5456] close(21 [pid 5050] newfstatat(4, "", [pid 5049] getdents64(4, [pid 5458] close(5 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5458] <... close resumed>) = 0 [pid 5457] close(16 [pid 5456] close(22 [pid 5458] close(6 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(4, [pid 5049] close(4 [pid 5457] close(17 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(23 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... close resumed>) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(7) = -1 EBADF (Bad file descriptor) [pid 5457] close(18 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5049] rmdir("./64/file0" [pid 5458] close(8 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(24 [pid 5053] newfstatat(3, "", [pid 5049] <... rmdir resumed>) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(19 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(4, [pid 5458] close(9 [pid 5456] close(25 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5458] close(10 [pid 5456] close(26 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5457] close(20 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5458] close(11 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./62/file0" [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(21 [pid 5456] close(27 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, [pid 5458] close(12 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./64/binderfs", [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(22 [pid 5456] close(28 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5458] close(13 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(23 [pid 5456] close(29 [pid 5053] unlink("./64/binderfs" [pid 5049] close(3 [pid 5458] close(14 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(24 [pid 5053] <... unlink resumed>) = 0 [pid 5050] getdents64(3, [pid 5049] <... close resumed>) = 0 [pid 5456] exit_group(0 [pid 5458] close(15 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./64" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5456] <... exit_group resumed>) = ? [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(25 [pid 5458] close(16 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] close(3 [pid 5049] <... rmdir resumed>) = 0 [pid 5457] close(26) = -1 EBADF (Bad file descriptor) [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(17 [pid 5457] close(27 [pid 5053] <... umount2 resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(18 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./62" [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(28 [pid 5458] close(19 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] close(29 [pid 5053] newfstatat(AT_FDCWD, "./64/file0", [pid 5049] mkdir("./65", 0777 [pid 5458] close(20 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5457] exit_group(0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(21 [pid 5053] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5458] close(22 [pid 5457] +++ exited with 0 +++ [pid 5456] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] mkdir("./63", 0777 [pid 5458] close(23 [pid 5053] <... openat resumed>) = 4 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5458] close(24 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(25 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] close(26 [pid 5053] getdents64(4, [pid 5050] <... openat resumed>) = 3 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5458] close(27 [pid 5048] <... openat resumed>) = 3 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] newfstatat(3, "", [pid 5458] close(28 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] close(3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] <... openat resumed>) = 3 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... close resumed>) = 0 [pid 5048] getdents64(3, [pid 5458] close(29 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] newfstatat(3, "", [pid 5053] close(4) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] rmdir("./64/file0" [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] getdents64(3, [pid 5050] close(3 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5458] exit_group(0 [pid 5048] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] <... exit_group resumed>) = ? [pid 5053] getdents64(3, [pid 5052] newfstatat(AT_FDCWD, "./69/binderfs", [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] close(3) = 0 [pid 5052] unlink("./69/binderfs") = 0 [pid 5053] rmdir("./64") = 0 [pid 5048] newfstatat(AT_FDCWD, "./62/binderfs", ./strace-static-x86_64: Process 5460 attached ./strace-static-x86_64: Process 5459 attached [pid 5052] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 65 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 67 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5460] set_robust_list(0x5555566e0760, 24 [pid 5048] unlink("./62/binderfs" [pid 5459] set_robust_list(0x5555566e0760, 24 [pid 5053] mkdir("./65", 0777 [pid 5048] <... unlink resumed>) = 0 [pid 5460] <... set_robust_list resumed>) = 0 [pid 5459] <... set_robust_list resumed>) = 0 [pid 5458] +++ exited with 0 +++ [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5048] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5460] chdir("./63" [pid 5459] chdir("./65" [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5459] <... chdir resumed>) = 0 [pid 5460] <... chdir resumed>) = 0 [pid 5052] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = 0 [pid 5460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5460] <... prctl resumed>) = 0 [pid 5459] <... prctl resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5052] newfstatat(AT_FDCWD, "./69/file0", [pid 5460] setpgid(0, 0 [pid 5459] setpgid(0, 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5460] <... setpgid resumed>) = 0 [pid 5051] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./62/file0", [pid 5460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5459] <... setpgid resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] <... openat resumed>) = 3 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5459] write(3, "1000", 4 [pid 5053] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5048] <... openat resumed>) = 4 [pid 5048] newfstatat(4, "", [pid 5460] <... openat resumed>) = 3 [pid 5459] <... write resumed>) = 4 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] newfstatat(4, "", [pid 5051] newfstatat(3, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5459] close(3) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5459] symlink("/dev/binderfs", "./binderfs" [pid 5052] getdents64(4, [pid 5459] <... symlink resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5459] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] getdents64(4, [pid 5459] <... socket resumed>) = 3 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5460] write(3, "1000", 4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5460] <... write resumed>) = 4 [pid 5459] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] close(4 [pid 5051] getdents64(3, [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5460] close(3) = 0 [pid 5459] <... socket resumed>) = 4 [pid 5052] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] getdents64(4, [pid 5460] symlink("/dev/binderfs", "./binderfs" [pid 5051] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5459] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] rmdir("./69/file0" [pid 5048] close(4 [pid 5460] <... symlink resumed>) = 0 [pid 5459] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... close resumed>) = 0 [pid 5460] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5459] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] newfstatat(AT_FDCWD, "./66/binderfs", [pid 5048] rmdir("./62/file0" [pid 5460] <... socket resumed>) = 3 [pid 5459] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(3, [pid 5459] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5461 attached [pid 5460] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5459] <... memfd_create resumed>) = 5 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 67 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5461] set_robust_list(0x5555566e0760, 24 [pid 5460] <... socket resumed>) = 4 [pid 5459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] unlink("./66/binderfs" [pid 5048] getdents64(3, [pid 5461] <... set_robust_list resumed>) = 0 [pid 5460] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5459] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] close(3 [pid 5461] chdir("./65" [pid 5460] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5459] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5461] <... chdir resumed>) = 0 [pid 5460] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5459] mkdir("./file0", 000 [pid 5052] rmdir("./69" [pid 5051] <... unlink resumed>) = 0 [pid 5048] close(3 [pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5460] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5459] <... mkdir resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5052] mkdir("./70", 0777) = 0 [pid 5459] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5459] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5052] close(3) = 0 [pid 5459] open(NULL, O_RDONLY [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5459] <... open resumed>) = -1 EFAULT (Bad address) [pid 5459] close(3 [pid 5460] memfd_create("syzkaller", 0 [pid 5459] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5459] close(4) = 0 [pid 5461] <... prctl resumed>) = 0 [pid 5460] <... memfd_create resumed>) = 5 [pid 5051] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] rmdir("./62" [pid 5459] close(5 [pid 5460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5461] setpgid(0, 0 [pid 5051] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] mkdir("./63", 0777 [pid 5461] <... setpgid resumed>) = 0 [pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5460] <... mmap resumed>) = 0x7f1263f98000 [pid 5459] <... close resumed>) = 0 [pid 5459] close(6) = -1 EBADF (Bad file descriptor) [pid 5459] close(7 [pid 5048] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5462 attached [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... openat resumed>) = 3 [pid 5459] close(8 [pid 5461] write(3, "1000", 4 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 72 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5462] set_robust_list(0x5555566e0760, 24 [pid 5459] close(9 [pid 5051] newfstatat(AT_FDCWD, "./66/file0", [pid 5462] <... set_robust_list resumed>) = 0 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] chdir("./70" [pid 5459] close(10 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5461] <... write resumed>) = 4 [pid 5460] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(3 [pid 5460] mkdir("./file0", 000 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5461] <... close resumed>) = 0 [pid 5460] <... mkdir resumed>) = 0 [pid 5459] close(11 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5462] <... chdir resumed>) = 0 [pid 5460] symlink(NULL, NULL [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] close(3 [pid 5462] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5459] close(12 [pid 5462] <... prctl resumed>) = 0 [pid 5461] symlink("/dev/binderfs", "./binderfs" [pid 5460] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... close resumed>) = 0 [pid 5462] setpgid(0, 0 [pid 5459] close(13 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5462] <... setpgid resumed>) = 0 [pid 5461] <... symlink resumed>) = 0 [pid 5460] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5459] close(14) = -1 EBADF (Bad file descriptor) [pid 5459] close(15) = -1 EBADF (Bad file descriptor) [pid 5459] close(16) = -1 EBADF (Bad file descriptor) [pid 5461] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5463 attached [pid 5462] <... openat resumed>) = 3 [pid 5461] <... socket resumed>) = 3 [pid 5460] <... mount resumed>) = 0 [pid 5459] close(17 [pid 5051] newfstatat(4, "", [pid 5461] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 65 [pid 5463] set_robust_list(0x5555566e0760, 24 [pid 5461] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5460] open(NULL, O_RDONLY [pid 5459] close(18 [pid 5463] <... set_robust_list resumed>) = 0 [pid 5462] write(3, "1000", 4 [pid 5461] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5460] <... open resumed>) = -1 EFAULT (Bad address) [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5463] chdir("./63" [pid 5462] <... write resumed>) = 4 [pid 5461] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5460] close(3 [pid 5459] close(19 [pid 5462] close(3 [pid 5461] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = 0 [pid 5460] <... close resumed>) = 0 [pid 5459] close(20 [pid 5463] <... chdir resumed>) = 0 [pid 5462] symlink("/dev/binderfs", "./binderfs" [pid 5461] memfd_create("syzkaller", 0 [pid 5460] close(4 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5462] <... symlink resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5463] <... prctl resumed>) = 0 [pid 5461] <... memfd_create resumed>) = 5 [pid 5462] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5460] <... close resumed>) = 0 [pid 5459] close(21 [pid 5463] setpgid(0, 0 [pid 5462] <... socket resumed>) = 3 [pid 5461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5460] close(5 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5463] <... setpgid resumed>) = 0 [pid 5461] <... mmap resumed>) = 0x7f1263f98000 [pid 5460] <... close resumed>) = 0 [pid 5459] close(22 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5462] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] <... openat resumed>) = 3 [pid 5462] <... socket resumed>) = 4 [pid 5461] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5460] close(6 [pid 5459] close(23 [pid 5051] close(4 [pid 5463] write(3, "1000", 4 [pid 5462] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5461] mkdir("./file0", 000 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] <... write resumed>) = 4 [pid 5462] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5460] close(7 [pid 5459] close(24 [pid 5051] <... close resumed>) = 0 [pid 5463] close(3 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] <... close resumed>) = 0 [pid 5462] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5460] close(8 [pid 5459] close(25 [pid 5051] rmdir("./66/file0" [pid 5463] symlink("/dev/binderfs", "./binderfs" [pid 5461] <... mkdir resumed>) = 0 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] close(9 [pid 5463] <... symlink resumed>) = 0 [pid 5462] memfd_create("syzkaller", 0 [pid 5461] symlink(NULL, NULL [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(26 [pid 5051] <... rmdir resumed>) = 0 [pid 5463] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5462] <... memfd_create resumed>) = 5 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] <... socket resumed>) = 3 [pid 5462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5459] close(27 [pid 5463] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5461] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] getdents64(3, [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] <... socket resumed>) = 4 [pid 5463] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5462] <... mmap resumed>) = 0x7f1263f98000 [pid 5461] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5460] close(10 [pid 5459] close(28 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5463] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(29 [pid 5051] close(3 [pid 5463] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5462] mkdir("./file0", 000 [pid 5461] <... mount resumed>) = 0 [pid 5463] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5462] <... mkdir resumed>) = 0 [pid 5461] open(NULL, O_RDONLY [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] close(11 [pid 5051] <... close resumed>) = 0 [pid 5463] memfd_create("syzkaller", 0 [pid 5461] <... open resumed>) = -1 EFAULT (Bad address) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./66" [pid 5461] close(3 [pid 5460] close(12 [pid 5461] <... close resumed>) = 0 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] exit_group(0 [pid 5461] close(4 [pid 5460] close(13) = -1 EBADF (Bad file descriptor) [pid 5460] close(14) = -1 EBADF (Bad file descriptor) [pid 5463] <... memfd_create resumed>) = 5 [pid 5462] symlink(NULL, NULL [pid 5461] <... close resumed>) = 0 [pid 5460] close(15 [pid 5459] <... exit_group resumed>) = ? [pid 5051] <... rmdir resumed>) = 0 [pid 5463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5461] close(5 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] +++ exited with 0 +++ [pid 5051] mkdir("./67", 0777 [pid 5463] <... mmap resumed>) = 0x7f1263f98000 [pid 5462] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5461] <... close resumed>) = 0 [pid 5460] close(16 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5463] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5462] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5461] close(6 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5463] mkdir("./file0", 000 [pid 5462] <... mount resumed>) = 0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] close(17 [pid 5051] <... mkdir resumed>) = 0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(7 [pid 5460] close(18 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5463] <... mkdir resumed>) = 0 [pid 5462] open(NULL, O_RDONLY [pid 5049] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] symlink(NULL, NULL [pid 5462] <... open resumed>) = -1 EFAULT (Bad address) [pid 5461] close(8 [pid 5460] close(19 [pid 5051] <... openat resumed>) = 3 [pid 5463] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5462] close(3 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5463] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5461] close(9 [pid 5460] close(20 [pid 5462] <... close resumed>) = 0 [pid 5462] close(4) = 0 [pid 5462] close(5) = 0 [pid 5462] close(6) = -1 EBADF (Bad file descriptor) [pid 5462] close(7) = -1 EBADF (Bad file descriptor) [pid 5462] close(8) = -1 EBADF (Bad file descriptor) [pid 5462] close(9) = -1 EBADF (Bad file descriptor) [pid 5462] close(10) = -1 EBADF (Bad file descriptor) [pid 5462] close(11) = -1 EBADF (Bad file descriptor) [pid 5462] close(12) = -1 EBADF (Bad file descriptor) [pid 5462] close(13 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] close(14) = -1 EBADF (Bad file descriptor) [pid 5462] close(15 [pid 5463] <... mount resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(10 [pid 5460] close(21 [pid 5049] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5462] close(16) = -1 EBADF (Bad file descriptor) [pid 5462] close(17 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(11 [pid 5460] close(22 [pid 5049] newfstatat(3, "", [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(12 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5460] close(23 [pid 5462] close(18) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5462] close(19 [pid 5461] close(13 [pid 5460] close(24 [pid 5051] <... close resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] open(NULL, O_RDONLY [pid 5462] close(20 [pid 5461] close(14 [pid 5460] close(25 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] getdents64(3, [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] close(21) = -1 EBADF (Bad file descriptor) [pid 5461] close(15 [pid 5460] close(26 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5462] close(22 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(16 [pid 5460] close(27 [pid 5049] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... open resumed>) = -1 EFAULT (Bad address) [pid 5462] close(23 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] close(3 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] close(28 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] close(29 [pid 5461] close(17 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] exit_group(0 [pid 5463] <... close resumed>) = 0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./65/binderfs", [pid 5462] close(24 [pid 5461] close(18 [pid 5460] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5464 attached [pid 5463] close(4 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5464] set_robust_list(0x5555566e0760, 24 [pid 5462] close(25) = -1 EBADF (Bad file descriptor) [pid 5462] close(26) = -1 EBADF (Bad file descriptor) [pid 5464] <... set_robust_list resumed>) = 0 [pid 5462] close(27) = -1 EBADF (Bad file descriptor) [pid 5464] chdir("./67" [pid 5462] close(28) = -1 EBADF (Bad file descriptor) [pid 5460] +++ exited with 0 +++ [pid 5462] close(29) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./65/binderfs" [pid 5464] <... chdir resumed>) = 0 [pid 5463] <... close resumed>) = 0 [pid 5462] exit_group(0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 69 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5463] close(5 [pid 5462] <... exit_group resumed>) = ? [pid 5049] <... unlink resumed>) = 0 [pid 5050] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... close resumed>) = 0 [pid 5464] <... prctl resumed>) = 0 [pid 5463] close(6 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5464] setpgid(0, 0) = 0 [pid 5464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5463] close(7 [pid 5461] close(19 [pid 5049] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5464] <... openat resumed>) = 3 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = 0 [pid 5463] close(8 [pid 5461] close(20 [pid 5049] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] write(3, "1000", 4 [pid 5463] close(9 [pid 5461] close(21 [pid 5050] newfstatat(3, "", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5464] <... write resumed>) = 4 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] newfstatat(AT_FDCWD, "./65/file0", [pid 5464] close(3 [pid 5463] close(10 [pid 5462] +++ exited with 0 +++ [pid 5461] close(22 [pid 5050] getdents64(3, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5464] <... close resumed>) = 0 [pid 5463] close(11 [pid 5461] close(23 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5464] symlink("/dev/binderfs", "./binderfs" [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5464] <... symlink resumed>) = 0 [pid 5463] close(12 [pid 5461] close(24 [pid 5052] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5464] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5463] close(13 [pid 5461] close(25 [pid 5052] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] newfstatat(AT_FDCWD, "./63/binderfs", [pid 5464] <... socket resumed>) = 3 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5463] close(14 [pid 5461] close(26 [pid 5464] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5464] <... socket resumed>) = 4 [pid 5463] close(15 [pid 5461] close(27 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] close(16 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] close(17 [pid 5461] close(28 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] close(18 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5464] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(29 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] unlink("./63/binderfs" [pid 5049] <... openat resumed>) = 4 [pid 5464] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5463] close(19 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5464] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] exit_group(0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... unlink resumed>) = 0 [pid 5049] newfstatat(4, "", [pid 5464] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5463] close(20 [pid 5461] <... exit_group resumed>) = ? [pid 5464] memfd_create("syzkaller", 0 [pid 5052] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5464] <... memfd_create resumed>) = 5 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./70/binderfs", [pid 5463] close(21 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5464] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./70/binderfs" [pid 5463] close(22 [pid 5464] <... mmap resumed>) = 0x7f1263f98000 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5050] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5464] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5463] close(23 [pid 5461] +++ exited with 0 +++ [pid 5049] getdents64(4, [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5464] mkdir("./file0", 000 [pid 5463] close(24 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] getdents64(4, [pid 5464] <... mkdir resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] close(25 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] close(4 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... close resumed>) = 0 [pid 5463] close(26 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] rmdir("./65/file0" [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./63/file0", [pid 5464] symlink(NULL, NULL [pid 5052] <... umount2 resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, [pid 5464] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5464] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5463] close(27 [pid 5464] <... mount resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(AT_FDCWD, "./70/file0", [pid 5050] <... openat resumed>) = 4 [pid 5049] close(3 [pid 5463] close(28 [pid 5464] open(NULL, O_RDONLY [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... close resumed>) = 0 [pid 5463] close(29 [pid 5050] newfstatat(4, "", [pid 5049] rmdir("./65" [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5464] close(3 [pid 5053] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5464] <... close resumed>) = 0 [pid 5463] exit_group(0 [pid 5053] newfstatat(3, "", [pid 5052] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] getdents64(4, [pid 5464] close(4 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5464] <... close resumed>) = 0 [pid 5463] <... exit_group resumed>) = ? [pid 5053] getdents64(3, [pid 5052] <... openat resumed>) = 4 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5464] close(5 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... rmdir resumed>) = 0 [pid 5464] <... close resumed>) = 0 [pid 5053] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(4, "", [pid 5464] close(6 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(4, [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./65/binderfs", [pid 5464] close(7 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(4, [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./65/binderfs" [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] close(4 [pid 5049] mkdir("./66", 0777 [pid 5464] close(8 [pid 5463] +++ exited with 0 +++ [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5052] getdents64(4, [pid 5050] <... close resumed>) = 0 [pid 5464] close(9 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5050] rmdir("./63/file0" [pid 5464] close(10 [pid 5052] <... close resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... rmdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5464] close(11 [pid 5052] rmdir("./70/file0" [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5048] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5464] close(12 [pid 5053] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(3, [pid 5050] getdents64(3, [pid 5049] <... openat resumed>) = 3 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5464] close(13 [pid 5053] newfstatat(AT_FDCWD, "./65/file0", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5464] close(14 [pid 5052] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5048] newfstatat(3, "", [pid 5464] close(15 [pid 5052] rmdir("./70" [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5464] close(16 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(3, [pid 5464] close(17) = -1 EBADF (Bad file descriptor) [pid 5464] close(18) = -1 EBADF (Bad file descriptor) [pid 5464] close(19 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(20 [pid 5048] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./63" [pid 5464] close(21 [pid 5049] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./71", 0777 [pid 5464] close(22 [pid 5049] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./63/binderfs", [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(23 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] unlink("./63/binderfs" [pid 5464] close(24) = -1 EBADF (Bad file descriptor) [pid 5464] close(25) = -1 EBADF (Bad file descriptor) [pid 5464] close(26) = -1 EBADF (Bad file descriptor) [pid 5464] close(27) = -1 EBADF (Bad file descriptor) [pid 5464] close(28) = -1 EBADF (Bad file descriptor) [pid 5464] close(29 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] exit_group(0 [pid 5052] <... openat resumed>) = 3 [pid 5048] <... unlink resumed>) = 0 [pid 5464] <... exit_group resumed>) = ? [pid 5464] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] mkdir("./64", 0777 [pid 5053] <... openat resumed>) = 4 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5052] close(3 [pid 5048] <... umount2 resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] newfstatat(4, "", [pid 5051] <... restart_syscall resumed>) = 0 [pid 5048] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... mkdir resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./63/file0", [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] getdents64(4, [pid 5051] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5053] getdents64(4, [pid 5051] newfstatat(3, "", [pid 5048] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5465 attached [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 68 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5465] set_robust_list(0x5555566e0760, 24 [pid 5053] close(4 [pid 5051] getdents64(3, [pid 5048] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5465] <... set_robust_list resumed>) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5466 attached [pid 5465] chdir("./66" [pid 5053] <... close resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 73 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... openat resumed>) = 4 [pid 5053] rmdir("./65/file0" [pid 5051] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] newfstatat(4, "", [pid 5466] set_robust_list(0x5555566e0760, 24 [pid 5465] <... chdir resumed>) = 0 [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5465] setpgid(0, 0) = 0 [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5465] write(3, "1000", 4) = 4 [pid 5465] close(3) = 0 [pid 5465] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5465] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./67/binderfs" [pid 5465] <... socket resumed>) = 3 [pid 5051] <... unlink resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5466] <... set_robust_list resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5050] close(3 [pid 5048] getdents64(4, [pid 5465] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5466] chdir("./71" [pid 5465] <... socket resumed>) = 4 [pid 5053] getdents64(3, [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5466] <... chdir resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] getdents64(4, [pid 5466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5465] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] close(3 [pid 5051] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5465] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5465] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5465] memfd_create("syzkaller", 0 [pid 5051] newfstatat(AT_FDCWD, "./67/file0", [pid 5048] close(4./strace-static-x86_64: Process 5467 attached [pid 5466] <... prctl resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... close resumed>) = 0 [pid 5467] set_robust_list(0x5555566e0760, 24 [pid 5466] setpgid(0, 0 [pid 5465] <... memfd_create resumed>) = 5 [pid 5053] rmdir("./65" [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 66 [pid 5048] rmdir("./63/file0" [pid 5467] <... set_robust_list resumed>) = 0 [pid 5466] <... setpgid resumed>) = 0 [pid 5465] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] mkdir("./66", 0777 [pid 5051] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... rmdir resumed>) = 0 [pid 5466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5465] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] <... openat resumed>) = 4 [pid 5465] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] <... mkdir resumed>) = 0 [pid 5466] <... openat resumed>) = 3 [pid 5048] getdents64(3, [pid 5467] chdir("./64" [pid 5465] mkdir("./file0", 000 [pid 5051] newfstatat(4, "", [pid 5467] <... chdir resumed>) = 0 [pid 5466] write(3, "1000", 4 [pid 5465] <... mkdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5466] <... write resumed>) = 4 [pid 5053] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] close(3 [pid 5467] <... prctl resumed>) = 0 [pid 5466] close(3 [pid 5051] getdents64(4, [pid 5467] setpgid(0, 0 [pid 5466] <... close resumed>) = 0 [pid 5465] symlink(NULL, NULL [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... close resumed>) = 0 [pid 5467] <... setpgid resumed>) = 0 [pid 5466] symlink("/dev/binderfs", "./binderfs" [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5048] rmdir("./63" [pid 5466] <... symlink resumed>) = 0 [pid 5465] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] getdents64(4, [pid 5465] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5466] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5465] <... mount resumed>) = 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... rmdir resumed>) = 0 [pid 5051] close(4 [pid 5467] <... openat resumed>) = 3 [pid 5053] close(3 [pid 5051] <... close resumed>) = 0 [pid 5048] mkdir("./64", 0777 [pid 5467] write(3, "1000", 4 [pid 5466] <... socket resumed>) = 3 [pid 5053] <... close resumed>) = 0 [pid 5051] rmdir("./67/file0" [pid 5465] open(NULL, O_RDONLY [pid 5467] <... write resumed>) = 4 [pid 5466] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5465] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... rmdir resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5466] <... socket resumed>) = 4 [pid 5465] close(3) = 0 [pid 5466] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] getdents64(3, [pid 5467] close(3 [pid 5466] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5465] close(4 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5467] <... close resumed>) = 0 [pid 5467] symlink("/dev/binderfs", "./binderfs" [pid 5466] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5465] <... close resumed>) = 0 [pid 5051] close(3 [pid 5048] <... openat resumed>) = 3 [pid 5467] <... symlink resumed>) = 0 [pid 5465] close(5 [pid 5051] <... close resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5465] <... close resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5466] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5048] close(3 [pid 5466] memfd_create("syzkaller", 0 [pid 5465] close(6 [pid 5051] rmdir("./67" [pid 5048] <... close resumed>) = 0 ./strace-static-x86_64: Process 5468 attached [pid 5467] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5466] <... memfd_create resumed>) = 5 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5468] set_robust_list(0x5555566e0760, 24 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(7) = -1 EBADF (Bad file descriptor) [pid 5465] close(8 [pid 5468] <... set_robust_list resumed>) = 0 [pid 5467] <... socket resumed>) = 3 [pid 5466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 68 [pid 5467] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5468] chdir("./66" [pid 5467] <... socket resumed>) = 4 [pid 5466] <... mmap resumed>) = 0x7f1263f98000 [pid 5465] close(9 [pid 5051] <... rmdir resumed>) = 0 [pid 5468] <... chdir resumed>) = 0 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(10 [pid 5468] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] mkdir("./68", 0777 [pid 5468] <... prctl resumed>) = 0 [pid 5466] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5465] close(11 [pid 5051] <... mkdir resumed>) = 0 [pid 5468] setpgid(0, 0 [pid 5467] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5466] mkdir("./file0", 000 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5465] close(12) = -1 EBADF (Bad file descriptor) [pid 5465] close(13 [pid 5468] <... setpgid resumed>) = 0 [pid 5467] memfd_create("syzkaller", 0 [pid 5466] <... mkdir resumed>) = 0 [pid 5468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... openat resumed>) = 3 [pid 5465] close(14 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5467] <... memfd_create resumed>) = 5 [pid 5466] symlink(NULL, NULL./strace-static-x86_64: Process 5469 attached [pid 5467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5466] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 66 [pid 5467] <... mmap resumed>) = 0x7f1263f98000 [pid 5466] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5465] close(15 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5468] write(3, "1000", 4 [pid 5467] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5469] set_robust_list(0x5555566e0760, 24 [pid 5468] <... write resumed>) = 4 [pid 5465] close(16 [pid 5468] close(3 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5467] mkdir("./file0", 000 [pid 5466] <... mount resumed>) = 0 [pid 5465] close(17 [pid 5469] <... set_robust_list resumed>) = 0 [pid 5468] <... close resumed>) = 0 [pid 5466] open(NULL, O_RDONLY [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5469] chdir("./64" [pid 5468] symlink("/dev/binderfs", "./binderfs" [pid 5466] <... open resumed>) = -1 EFAULT (Bad address) [pid 5465] close(18 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] <... chdir resumed>) = 0 [pid 5468] <... symlink resumed>) = 0 [pid 5467] <... mkdir resumed>) = 0 [pid 5466] close(3 [pid 5465] close(19) = -1 EBADF (Bad file descriptor) [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5468] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5467] symlink(NULL, NULL [pid 5466] <... close resumed>) = 0 [pid 5465] close(20 [pid 5469] <... prctl resumed>) = 0 [pid 5469] setpgid(0, 0 [pid 5468] <... socket resumed>) = 3 [pid 5467] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] <... setpgid resumed>) = 0 [pid 5466] close(4 [pid 5465] close(21 [pid 5467] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5465] close(22 [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5468] <... socket resumed>) = 4 [pid 5467] <... mount resumed>) = 0 [pid 5466] <... close resumed>) = 0 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5470 attached [pid 5469] <... openat resumed>) = 3 [pid 5468] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5465] close(23 [pid 5470] set_robust_list(0x5555566e0760, 24 [pid 5469] write(3, "1000", 4 [pid 5468] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(5 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 70 [pid 5467] open(NULL, O_RDONLY [pid 5469] <... write resumed>) = 4 [pid 5468] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5465] close(24 [pid 5470] <... set_robust_list resumed>) = 0 [pid 5469] close(3 [pid 5468] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5467] <... open resumed>) = -1 EFAULT (Bad address) [pid 5466] <... close resumed>) = 0 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] chdir("./68" [pid 5469] <... close resumed>) = 0 [pid 5468] memfd_create("syzkaller", 0 [pid 5467] close(3 [pid 5466] close(6 [pid 5465] close(25 [pid 5470] <... chdir resumed>) = 0 [pid 5469] symlink("/dev/binderfs", "./binderfs" [pid 5468] <... memfd_create resumed>) = 5 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5467] <... close resumed>) = 0 [pid 5465] close(26 [pid 5470] <... prctl resumed>) = 0 [pid 5469] <... symlink resumed>) = 0 [pid 5468] <... mmap resumed>) = 0x7f1263f98000 [pid 5467] close(4 [pid 5466] close(7 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] setpgid(0, 0 [pid 5469] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5468] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5467] <... close resumed>) = 0 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(27 [pid 5470] <... setpgid resumed>) = 0 [pid 5467] close(5 [pid 5466] close(8 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5468] mkdir("./file0", 000 [pid 5465] close(28 [pid 5469] <... socket resumed>) = 3 [pid 5469] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5467] <... close resumed>) = 0 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... openat resumed>) = 3 [pid 5469] <... socket resumed>) = 4 [pid 5468] <... mkdir resumed>) = 0 [pid 5467] close(6 [pid 5466] close(9 [pid 5465] close(29 [pid 5469] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5467] close(7 [pid 5466] close(10 [pid 5469] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(8 [pid 5469] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] write(3, "1000", 4 [pid 5469] memfd_create("syzkaller", 0 [pid 5468] symlink(NULL, NULL [pid 5467] close(9 [pid 5466] close(11 [pid 5465] exit_group(0 [pid 5470] <... write resumed>) = 4 [pid 5469] <... memfd_create resumed>) = 5 [pid 5468] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] <... exit_group resumed>) = ? [pid 5470] close(3 [pid 5469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5468] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5467] close(10 [pid 5466] close(12 [pid 5465] +++ exited with 0 +++ [pid 5470] <... close resumed>) = 0 [pid 5469] <... mmap resumed>) = 0x7f1263f98000 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5467] close(11 [pid 5466] close(13 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5470] symlink("/dev/binderfs", "./binderfs" [pid 5469] mkdir("./file0", 000 [pid 5468] <... mount resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5470] <... symlink resumed>) = 0 [pid 5466] close(14 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5470] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5468] open(NULL, O_RDONLY [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... socket resumed>) = 3 [pid 5468] <... open resumed>) = -1 EFAULT (Bad address) [pid 5467] close(12 [pid 5466] close(15 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5468] close(3 [pid 5470] <... socket resumed>) = 4 [pid 5467] close(13 [pid 5466] close(16 [pid 5049] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5470] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5469] <... mkdir resumed>) = 0 [pid 5468] <... close resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5466] close(17 [pid 5469] symlink(NULL, NULL [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5467] close(14 [pid 5466] close(18) = -1 EBADF (Bad file descriptor) [pid 5470] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5468] close(4 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(19 [pid 5470] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5469] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5468] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5470] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5469] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5468] close(5 [pid 5467] close(15 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5466] close(20 [pid 5470] memfd_create("syzkaller", 0 [pid 5468] <... close resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(6 [pid 5470] <... memfd_create resumed>) = 5 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] <... mount resumed>) = 0 [pid 5468] close(7 [pid 5466] close(21 [pid 5470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... mmap resumed>) = 0x7f1263f98000 [pid 5468] close(8 [pid 5466] close(22 [pid 5467] close(16 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] open(NULL, O_RDONLY [pid 5470] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5468] close(9 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(23 [pid 5049] getdents64(3, [pid 5470] mkdir("./file0", 000 [pid 5469] <... open resumed>) = -1 EFAULT (Bad address) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(17 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... mkdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5468] close(10) = -1 EBADF (Bad file descriptor) [pid 5468] close(11) = -1 EBADF (Bad file descriptor) [pid 5468] close(12) = -1 EBADF (Bad file descriptor) [pid 5468] close(13) = -1 EBADF (Bad file descriptor) [pid 5468] close(14) = -1 EBADF (Bad file descriptor) [pid 5468] close(15) = -1 EBADF (Bad file descriptor) [pid 5468] close(16 [pid 5470] symlink(NULL, NULL [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5468] close(17) = -1 EBADF (Bad file descriptor) [pid 5470] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5468] close(18) = -1 EBADF (Bad file descriptor) [pid 5468] close(19) = -1 EBADF (Bad file descriptor) [pid 5468] close(20 [pid 5470] <... mount resumed>) = 0 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(21) = -1 EBADF (Bad file descriptor) [pid 5468] close(22 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5466] close(24 [pid 5470] open(NULL, O_RDONLY [pid 5469] close(3 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(18 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... open resumed>) = -1 EFAULT (Bad address) [pid 5469] <... close resumed>) = 0 [pid 5468] close(23 [pid 5466] close(25 [pid 5470] close(3 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(4 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5470] <... close resumed>) = 0 [pid 5468] close(24 [pid 5467] close(19 [pid 5466] close(26 [pid 5049] newfstatat(AT_FDCWD, "./66/binderfs", [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(4 [pid 5469] <... close resumed>) = 0 [pid 5468] close(25 [pid 5467] close(20 [pid 5466] close(27 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5469] close(5 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./66/binderfs" [pid 5470] <... close resumed>) = 0 [pid 5469] <... close resumed>) = 0 [pid 5468] close(26 [pid 5467] close(21 [pid 5466] close(28 [pid 5470] close(5 [pid 5469] close(6 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... close resumed>) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(27 [pid 5467] close(22 [pid 5470] close(6 [pid 5469] close(7 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(23 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(8 [pid 5468] close(28 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(29 [pid 5049] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5470] close(7 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(24 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(9 [pid 5468] close(29 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(8 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(25 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(10 [pid 5468] exit_group(0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = 0 [pid 5470] close(9 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... exit_group resumed>) = ? [pid 5467] close(26 [pid 5466] exit_group(0 [pid 5049] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] close(11 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... exit_group resumed>) = ? [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(10 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(12 [pid 5470] close(11 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(13 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(27 [pid 5470] close(12 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(14 [pid 5467] close(28 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5470] close(13 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(15 [pid 5467] close(29 [pid 5049] newfstatat(AT_FDCWD, "./66/file0", [pid 5470] close(14 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(16 [pid 5470] close(15 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] +++ exited with 0 +++ [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(17 [pid 5466] +++ exited with 0 +++ [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5470] close(16 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5467] exit_group(0 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(18 [pid 5467] <... exit_group resumed>) = ? [pid 5053] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5470] close(17 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(19 [pid 5053] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5470] close(18 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5049] <... openat resumed>) = 4 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(20 [pid 5053] newfstatat(3, "", [pid 5049] newfstatat(4, "", [pid 5470] close(19 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(21 [pid 5053] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5470] close(20 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(22 [pid 5053] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5470] close(21 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(3, "", [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(23 [pid 5467] +++ exited with 0 +++ [pid 5053] newfstatat(AT_FDCWD, "./66/binderfs", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(4, [pid 5470] close(22 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(3, [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(24 [pid 5053] unlink("./66/binderfs" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5470] close(23 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5052] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... restart_syscall resumed>) = 0 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(25 [pid 5053] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, [pid 5470] close(24 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./71/binderfs", [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(26 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5470] close(25 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] close(4 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(27 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] unlink("./71/binderfs" [pid 5470] close(26 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./66/file0", [pid 5052] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... close resumed>) = 0 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(28 [pid 5470] close(27 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] rmdir("./66/file0" [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(29 [pid 5053] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... openat resumed>) = 3 [pid 5470] close(28 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(3, "", [pid 5049] <... rmdir resumed>) = 0 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5470] close(29) = -1 EBADF (Bad file descriptor) [pid 5470] exit_group(0) = ? [pid 5470] +++ exited with 0 +++ [pid 5469] exit_group(0 [pid 5053] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] <... exit_group resumed>) = ? [pid 5053] <... openat resumed>) = 4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, [pid 5053] newfstatat(4, "", [pid 5050] getdents64(3, [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(AT_FDCWD, "./71/file0", [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] close(3 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] getdents64(4, [pid 5052] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... close resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5050] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] close(4 [pid 5052] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] rmdir("./66" [pid 5053] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5051] newfstatat(3, "", [pid 5053] rmdir("./66/file0" [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(4, "", [pid 5051] getdents64(3, [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... rmdir resumed>) = 0 [pid 5053] getdents64(3, [pid 5050] newfstatat(AT_FDCWD, "./64/binderfs", [pid 5052] getdents64(4, [pid 5051] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(4, [pid 5051] newfstatat(AT_FDCWD, "./68/binderfs", [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] mkdir("./67", 0777 [pid 5052] close(4) = 0 [pid 5051] unlink("./68/binderfs" [pid 5053] close(3 [pid 5052] rmdir("./71/file0" [pid 5051] <... unlink resumed>) = 0 [pid 5469] +++ exited with 0 +++ [pid 5052] <... rmdir resumed>) = 0 [pid 5050] unlink("./64/binderfs" [pid 5051] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... unlink resumed>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... mkdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5050] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(3, [pid 5051] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./66" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./68/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5052] close(3 [pid 5051] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] rmdir("./71") = 0 [pid 5051] <... openat resumed>) = 4 [pid 5050] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] mkdir("./72", 0777 [pid 5049] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... mkdir resumed>) = 0 [pid 5051] getdents64(4, [pid 5053] mkdir("./67", 0777 [pid 5050] newfstatat(AT_FDCWD, "./64/file0", [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] newfstatat(3, "", [pid 5051] close(4) = 0 [pid 5051] rmdir("./68/file0" [pid 5053] <... mkdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, [pid 5051] <... rmdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5051] getdents64(3, [pid 5049] close(3 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] close(3) = 0 [pid 5051] rmdir("./68" [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... rmdir resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] close(3) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] mkdir("./69", 0777 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] <... mkdir resumed>) = 0 [pid 5050] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... close resumed>) = 0 [pid 5048] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5051] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5471 attached [pid 5051] close(3 [pid 5050] <... openat resumed>) = 4 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5048] newfstatat(AT_FDCWD, "./64/binderfs", [pid 5471] set_robust_list(0x5555566e0760, 24 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 74 [pid 5051] <... close resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5471] <... set_robust_list resumed>) = 0 [pid 5471] chdir("./72" [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 69 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] getdents64(4, [pid 5471] <... chdir resumed>) = 0 [pid 5471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5471] setpgid(0, 0) = 0 [pid 5471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] close(3 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] unlink("./64/binderfs" [pid 5050] getdents64(4, [pid 5053] <... close resumed>) = 0 [pid 5471] <... openat resumed>) = 3 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5473 attached ./strace-static-x86_64: Process 5472 attached [pid 5473] set_robust_list(0x5555566e0760, 24 [pid 5472] set_robust_list(0x5555566e0760, 24 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 71 [pid 5050] close(4 [pid 5048] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] <... set_robust_list resumed>) = 0 [pid 5471] write(3, "1000", 4 [pid 5050] <... close resumed>) = 0 [pid 5473] chdir("./69" [pid 5472] <... set_robust_list resumed>) = 0 [pid 5471] <... write resumed>) = 4 [pid 5050] rmdir("./64/file0" [pid 5048] <... umount2 resumed>) = 0 [pid 5471] close(3) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] <... chdir resumed>) = 0 [pid 5471] symlink("/dev/binderfs", "./binderfs" [pid 5472] chdir("./67" [pid 5473] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5472] <... chdir resumed>) = 0 [pid 5471] <... symlink resumed>) = 0 [pid 5050] getdents64(3, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5473] <... prctl resumed>) = 0 [pid 5472] <... prctl resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 69 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] newfstatat(AT_FDCWD, "./64/file0", [pid 5473] setpgid(0, 0 [pid 5472] setpgid(0, 0 [pid 5050] close(3./strace-static-x86_64: Process 5474 attached [pid 5473] <... setpgid resumed>) = 0 [pid 5472] <... setpgid resumed>) = 0 [pid 5471] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5474] set_robust_list(0x5555566e0760, 24 [pid 5473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5471] <... socket resumed>) = 3 [pid 5050] <... close resumed>) = 0 [pid 5048] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5474] <... set_robust_list resumed>) = 0 [pid 5474] chdir("./67" [pid 5473] <... openat resumed>) = 3 [pid 5472] <... openat resumed>) = 3 [pid 5471] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] rmdir("./64" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5474] <... chdir resumed>) = 0 [pid 5472] write(3, "1000", 4 [pid 5048] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5474] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5472] <... write resumed>) = 4 [pid 5474] <... prctl resumed>) = 0 [pid 5472] close(3 [pid 5471] <... socket resumed>) = 4 [pid 5048] <... openat resumed>) = 4 [pid 5474] setpgid(0, 0 [pid 5473] write(3, "1000", 4 [pid 5472] <... close resumed>) = 0 [pid 5471] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] newfstatat(4, "", [pid 5474] <... setpgid resumed>) = 0 [pid 5473] <... write resumed>) = 4 [pid 5472] symlink("/dev/binderfs", "./binderfs" [pid 5471] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... rmdir resumed>) = 0 [pid 5473] close(3 [pid 5472] <... symlink resumed>) = 0 [pid 5471] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5472] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5473] <... close resumed>) = 0 [pid 5472] <... socket resumed>) = 3 [pid 5471] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5050] mkdir("./65", 0777 [pid 5474] <... openat resumed>) = 3 [pid 5473] symlink("/dev/binderfs", "./binderfs" [pid 5472] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5471] memfd_create("syzkaller", 0 [pid 5048] getdents64(4, [pid 5474] write(3, "1000", 4 [pid 5050] <... mkdir resumed>) = 0 [pid 5472] <... socket resumed>) = 4 [pid 5474] <... write resumed>) = 4 [pid 5473] <... symlink resumed>) = 0 [pid 5472] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5471] <... memfd_create resumed>) = 5 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5474] close(3 [pid 5472] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] getdents64(4, [pid 5474] <... close resumed>) = 0 [pid 5472] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5474] symlink("/dev/binderfs", "./binderfs" [pid 5473] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5472] memfd_create("syzkaller", 0 [pid 5471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5474] <... symlink resumed>) = 0 [pid 5473] <... socket resumed>) = 3 [pid 5472] <... memfd_create resumed>) = 5 [pid 5471] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5474] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5473] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] close(4 [pid 5474] <... socket resumed>) = 3 [pid 5473] <... socket resumed>) = 4 [pid 5472] <... mmap resumed>) = 0x7f1263f98000 [pid 5471] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5474] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5473] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5472] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... close resumed>) = 0 [pid 5473] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5471] mkdir("./file0", 000 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5473] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5472] mkdir("./file0", 000 [pid 5048] rmdir("./64/file0" [pid 5473] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5473] memfd_create("syzkaller", 0 [pid 5472] <... mkdir resumed>) = 0 [pid 5471] <... mkdir resumed>) = 0 [pid 5050] close(3 [pid 5048] <... rmdir resumed>) = 0 [pid 5048] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5474] <... socket resumed>) = 4 [pid 5473] <... memfd_create resumed>) = 5 [pid 5472] symlink(NULL, NULL [pid 5048] close(3 [pid 5474] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5472] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5471] symlink(NULL, NULL [pid 5472] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5048] <... close resumed>) = 0 [pid 5474] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5473] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5474] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5472] <... mount resumed>) = 0 [pid 5471] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] rmdir("./64" [pid 5474] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5473] <... mmap resumed>) = 0x7f1263f98000 [pid 5471] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5474] memfd_create("syzkaller", 0 [pid 5473] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5471] open(NULL, O_RDONLY [pid 5473] mkdir("./file0", 000 [pid 5471] <... open resumed>) = -1 EFAULT (Bad address) [pid 5474] <... memfd_create resumed>) = 5 [pid 5472] open(NULL, O_RDONLY [pid 5471] close(3 [pid 5048] mkdir("./65", 0777 [pid 5474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5472] <... open resumed>) = -1 EFAULT (Bad address) [pid 5471] <... close resumed>) = 0 [pid 5474] <... mmap resumed>) = 0x7f1263f98000 [pid 5473] <... mkdir resumed>) = 0 [pid 5471] close(4 [pid 5472] close(3 [pid 5048] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5475 attached [pid 5474] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5473] symlink(NULL, NULL [pid 5471] <... close resumed>) = 0 [pid 5474] mkdir("./file0", 000 [pid 5472] <... close resumed>) = 0 [pid 5471] close(5 [pid 5475] set_robust_list(0x5555566e0760, 24 [pid 5473] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5471] <... close resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 67 [pid 5472] close(4 [pid 5475] <... set_robust_list resumed>) = 0 [pid 5474] <... mkdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5475] chdir("./65" [pid 5474] symlink(NULL, NULL [pid 5473] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5472] <... close resumed>) = 0 [pid 5471] close(6 [pid 5475] <... chdir resumed>) = 0 [pid 5474] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5473] <... mount resumed>) = 0 [pid 5472] close(5 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5474] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5475] <... prctl resumed>) = 0 [pid 5472] <... close resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5475] setpgid(0, 0 [pid 5471] close(7 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5475] <... setpgid resumed>) = 0 [pid 5472] close(6 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5473] open(NULL, O_RDONLY [pid 5471] close(8 [pid 5474] <... mount resumed>) = 0 [pid 5473] <... open resumed>) = -1 EFAULT (Bad address) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5474] open(NULL, O_RDONLY [pid 5472] close(7 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5473] close(3 [pid 5471] close(9 [pid 5473] <... close resumed>) = 0 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] close(10 [pid 5473] close(4 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] close(11) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = 0 [pid 5471] close(12 [pid 5474] <... open resumed>) = -1 EFAULT (Bad address) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... openat resumed>) = 3 [pid 5473] close(5 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] close(13./strace-static-x86_64: Process 5476 attached [pid 5475] write(3, "1000", 4 [pid 5474] close(3 [pid 5473] <... close resumed>) = 0 [pid 5472] close(8 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] set_robust_list(0x5555566e0760, 24 [pid 5475] <... write resumed>) = 4 [pid 5474] <... close resumed>) = 0 [pid 5473] close(6 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] close(14 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(7 [pid 5471] close(15 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(8 [pid 5471] close(16 [pid 5472] close(9 [pid 5476] <... set_robust_list resumed>) = 0 [pid 5475] close(3 [pid 5474] close(4 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 67 [pid 5476] chdir("./65" [pid 5475] <... close resumed>) = 0 [pid 5474] <... close resumed>) = 0 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... chdir resumed>) = 0 [pid 5475] symlink("/dev/binderfs", "./binderfs" [pid 5474] close(5 [pid 5472] close(10 [pid 5471] close(17 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] <... symlink resumed>) = 0 [pid 5474] <... close resumed>) = 0 [pid 5473] close(9 [pid 5472] close(11 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... prctl resumed>) = 0 [pid 5475] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5474] close(6 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] close(18 [pid 5476] setpgid(0, 0 [pid 5475] <... socket resumed>) = 3 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(10 [pid 5472] close(12 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... setpgid resumed>) = 0 [pid 5475] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5474] close(7 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] close(19 [pid 5476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5475] <... socket resumed>) = 4 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(11 [pid 5472] close(13 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5474] close(8 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] close(20 [pid 5476] <... openat resumed>) = 3 [pid 5475] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(12 [pid 5472] close(14 [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] close(21 [pid 5476] write(3, "1000", 4 [pid 5475] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5474] close(9 [pid 5473] close(13 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... write resumed>) = 4 [pid 5475] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(15 [pid 5471] close(22 [pid 5476] close(3 [pid 5475] memfd_create("syzkaller", 0 [pid 5474] close(10 [pid 5473] close(14 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = 0 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(16 [pid 5471] close(23 [pid 5476] symlink("/dev/binderfs", "./binderfs" [pid 5475] <... memfd_create resumed>) = 5 [pid 5474] close(11 [pid 5473] close(15 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(17 [pid 5471] close(24 [pid 5475] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5474] close(12 [pid 5473] close(16 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... symlink resumed>) = 0 [pid 5476] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(18 [pid 5471] close(25 [pid 5476] <... socket resumed>) = 3 [pid 5475] <... mmap resumed>) = 0x7f1263f98000 [pid 5474] close(13 [pid 5473] close(17 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5475] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(19 [pid 5471] close(26 [pid 5475] mkdir("./file0", 000 [pid 5476] <... socket resumed>) = 4 [pid 5474] close(14 [pid 5473] close(18 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(20 [pid 5471] close(27 [pid 5476] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5474] close(15 [pid 5473] close(19 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(21 [pid 5471] close(28 [pid 5476] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5475] <... mkdir resumed>) = 0 [pid 5474] close(16 [pid 5473] close(20 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] memfd_create("syzkaller", 0 [pid 5475] symlink(NULL, NULL [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(22 [pid 5471] close(29 [pid 5474] close(17 [pid 5473] close(21 [pid 5475] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... memfd_create resumed>) = 5 [pid 5476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5475] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(23 [pid 5471] exit_group(0 [pid 5474] close(18 [pid 5473] close(22 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... exit_group resumed>) = ? [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(24 [pid 5476] <... mmap resumed>) = 0x7f1263f98000 [pid 5475] <... mount resumed>) = 0 [pid 5474] close(19 [pid 5473] close(23 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5475] open(NULL, O_RDONLY [pid 5476] mkdir("./file0", 000 [pid 5472] close(25 [pid 5475] <... open resumed>) = -1 EFAULT (Bad address) [pid 5474] close(20 [pid 5475] close(3 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(21 [pid 5475] <... close resumed>) = 0 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(24 [pid 5472] close(26 [pid 5475] close(4 [pid 5474] close(22 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... mkdir resumed>) = 0 [pid 5475] <... close resumed>) = 0 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(25 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] +++ exited with 0 +++ [pid 5475] close(5 [pid 5474] close(23 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(27 [pid 5475] <... close resumed>) = 0 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(26 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(6 [pid 5474] close(24 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] close(28 [pid 5476] symlink(NULL, NULL [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(27 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5476] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5475] close(7 [pid 5474] close(25 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(28 [pid 5472] close(29 [pid 5475] close(8 [pid 5474] close(26 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(29 [pid 5472] exit_group(0 [pid 5475] close(9 [pid 5474] close(27 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5476] <... mount resumed>) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] exit_group(0 [pid 5472] <... exit_group resumed>) = ? [pid 5476] open(NULL, O_RDONLY [pid 5475] close(10 [pid 5474] close(28 [pid 5473] <... exit_group resumed>) = ? [pid 5052] <... openat resumed>) = 3 [pid 5476] <... open resumed>) = -1 EFAULT (Bad address) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(3 [pid 5475] close(11 [pid 5474] close(29 [pid 5052] newfstatat(3, "", [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(12) = -1 EBADF (Bad file descriptor) [pid 5474] exit_group(0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, [pid 5475] close(13 [pid 5474] <... exit_group resumed>) = ? [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] +++ exited with 0 +++ [pid 5052] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5475] close(14 [pid 5476] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] newfstatat(AT_FDCWD, "./72/binderfs", [pid 5051] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] close(4 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5475] close(15 [pid 5476] <... close resumed>) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./72/binderfs" [pid 5051] newfstatat(3, "", [pid 5476] close(5 [pid 5475] close(16 [pid 5474] +++ exited with 0 +++ [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5476] <... close resumed>) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5475] close(17 [pid 5476] close(6) = -1 EBADF (Bad file descriptor) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(7) = -1 EBADF (Bad file descriptor) [pid 5476] close(8 [pid 5475] close(18 [pid 5472] +++ exited with 0 +++ [pid 5052] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(3, [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5476] close(9 [pid 5475] close(19 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5476] close(10 [pid 5052] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... restart_syscall resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./69/binderfs", [pid 5052] newfstatat(AT_FDCWD, "./72/file0", [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(20 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] close(11 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(21 [pid 5476] close(12 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] unlink("./69/binderfs" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(22 [pid 5053] newfstatat(3, "", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5476] close(13 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(23 [pid 5476] close(14 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(15 [pid 5052] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(24 [pid 5053] getdents64(3, [pid 5052] <... openat resumed>) = 4 [pid 5049] <... openat resumed>) = 3 [pid 5476] close(16 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] newfstatat(4, "", [pid 5051] <... umount2 resumed>) = 0 [pid 5049] newfstatat(3, "", [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(25 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5476] close(17 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(26 [pid 5476] close(18 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(27 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5476] close(19 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./67/binderfs", [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(28 [pid 5476] close(20 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5475] close(29 [pid 5052] getdents64(4, [pid 5051] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5476] close(21 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./67/binderfs" [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] exit_group(0 [pid 5052] getdents64(4, [pid 5476] close(22 [pid 5475] <... exit_group resumed>) = ? [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] newfstatat(AT_FDCWD, "./69/file0", [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5476] close(23 [pid 5053] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5049] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./72/file0" [pid 5051] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5476] close(24 [pid 5051] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] newfstatat(AT_FDCWD, "./67/binderfs", [pid 5051] <... openat resumed>) = 4 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(3, [pid 5051] newfstatat(4, "", [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./67/binderfs") = 0 [pid 5049] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] getdents64(4, [pid 5052] close(3 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... close resumed>) = 0 [pid 5051] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5052] rmdir("./72" [pid 5051] rmdir("./69/file0" [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5051] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] close(3) = 0 [pid 5051] rmdir("./69" [pid 5476] close(25 [pid 5475] +++ exited with 0 +++ [pid 5051] <... rmdir resumed>) = 0 [pid 5052] mkdir("./73", 0777 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5476] close(26 [pid 5053] <... umount2 resumed>) = 0 [pid 5050] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./70", 0777 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... mkdir resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5476] close(27 [pid 5050] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] newfstatat(3, "", [pid 5052] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] getdents64(3, [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] close(3 [pid 5050] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5476] close(28) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] newfstatat(AT_FDCWD, "./65/binderfs", [pid 5476] close(29 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./67/file0", [pid 5476] exit_group(0 [pid 5050] unlink("./65/binderfs" [pid 5476] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] <... unlink resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] +++ exited with 0 +++ [pid 5053] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(3 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5049] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... openat resumed>) = 4 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] newfstatat(4, "", [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5049] newfstatat(AT_FDCWD, "./67/file0", [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5053] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] newfstatat(AT_FDCWD, "./65/file0", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5053] getdents64(4, [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 75 [pid 5049] newfstatat(4, "", [pid 5048] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5477 attached [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5477] set_robust_list(0x5555566e0760, 24 [pid 5053] close(4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5477] <... set_robust_list resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5478 attached [pid 5477] chdir("./73" [pid 5053] rmdir("./67/file0" [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 72 [pid 5050] <... openat resumed>) = 4 [pid 5478] set_robust_list(0x5555566e0760, 24 [pid 5050] newfstatat(4, "", [pid 5049] getdents64(4, [pid 5048] <... openat resumed>) = 3 [pid 5478] <... set_robust_list resumed>) = 0 [pid 5477] <... chdir resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5478] chdir("./70" [pid 5049] close(4 [pid 5048] newfstatat(3, "", [pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] getdents64(3, [pid 5050] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5478] <... chdir resumed>) = 0 [pid 5477] <... prctl resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] rmdir("./67/file0" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5477] setpgid(0, 0 [pid 5053] close(3 [pid 5478] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5477] <... setpgid resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5049] <... rmdir resumed>) = 0 [pid 5048] getdents64(3, [pid 5478] <... prctl resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5478] setpgid(0, 0 [pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] rmdir("./67" [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5478] <... setpgid resumed>) = 0 [pid 5050] close(4 [pid 5478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... rmdir resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] <... openat resumed>) = 3 [pid 5050] rmdir("./65/file0" [pid 5049] getdents64(3, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] mkdir("./68", 0777 [pid 5048] newfstatat(AT_FDCWD, "./65/binderfs", [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5477] <... openat resumed>) = 3 [pid 5048] unlink("./65/binderfs" [pid 5478] write(3, "1000", 4) = 4 [pid 5049] close(3 [pid 5478] close(3 [pid 5477] write(3, "1000", 4 [pid 5050] getdents64(3, [pid 5049] <... close resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5478] <... close resumed>) = 0 [pid 5477] <... write resumed>) = 4 [pid 5053] <... mkdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] rmdir("./67" [pid 5048] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] symlink("/dev/binderfs", "./binderfs" [pid 5477] close(3 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] close(3 [pid 5049] <... rmdir resumed>) = 0 [pid 5478] <... symlink resumed>) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5477] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5477] symlink("/dev/binderfs", "./binderfs" [pid 5053] <... openat resumed>) = 3 [pid 5050] rmdir("./65" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5478] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5477] <... symlink resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5050] <... rmdir resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./65/file0", [pid 5477] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5049] mkdir("./68", 0777 [pid 5477] <... socket resumed>) = 3 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5477] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] close(3 [pid 5478] <... socket resumed>) = 3 [pid 5477] <... socket resumed>) = 4 [pid 5053] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5477] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... openat resumed>) = 3 [pid 5048] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5477] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] mkdir("./66", 0777 [pid 5478] <... socket resumed>) = 4 [pid 5478] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5477] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5477] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5478] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5478] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5477] memfd_create("syzkaller", 0 [pid 5048] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5478] memfd_create("syzkaller", 0 [pid 5049] close(3 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... close resumed>) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 4 [pid 5478] <... memfd_create resumed>) = 5 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5477] <... memfd_create resumed>) = 5 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5478] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5477] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] close(3 [pid 5478] mkdir("./file0", 000 [pid 5477] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] <... close resumed>) = 0 [pid 5478] <... mkdir resumed>) = 0 [pid 5477] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] newfstatat(4, "", [pid 5477] mkdir("./file0", 000./strace-static-x86_64: Process 5479 attached [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5479] set_robust_list(0x5555566e0760, 24) = 0 [pid 5479] chdir("./68" [pid 5478] symlink(NULL, NULL [pid 5479] <... chdir resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 70 [pid 5048] getdents64(4, [pid 5479] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5478] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5477] <... mkdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5479] <... prctl resumed>) = 0 [pid 5478] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5479] setpgid(0, 0 [pid 5478] <... mount resumed>) = 0 [pid 5477] symlink(NULL, NULL [pid 5048] getdents64(4, [pid 5479] <... setpgid resumed>) = 0 [pid 5477] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5481 attached ./strace-static-x86_64: Process 5480 attached [pid 5479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5478] open(NULL, O_RDONLY [pid 5477] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 70 [pid 5048] close(4 [pid 5480] set_robust_list(0x5555566e0760, 24 [pid 5481] set_robust_list(0x5555566e0760, 24 [pid 5478] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 68 [pid 5048] <... close resumed>) = 0 [pid 5480] <... set_robust_list resumed>) = 0 [pid 5478] close(3 [pid 5048] rmdir("./65/file0" [pid 5480] chdir("./66" [pid 5481] <... set_robust_list resumed>) = 0 [pid 5478] <... close resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5478] close(4 [pid 5481] chdir("./68" [pid 5479] <... openat resumed>) = 3 [pid 5477] <... mount resumed>) = 0 [pid 5048] getdents64(3, [pid 5480] <... chdir resumed>) = 0 [pid 5479] write(3, "1000", 4 [pid 5477] open(NULL, O_RDONLY [pid 5480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5481] <... chdir resumed>) = 0 [pid 5479] <... write resumed>) = 4 [pid 5478] <... close resumed>) = 0 [pid 5477] <... open resumed>) = -1 EFAULT (Bad address) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5480] <... prctl resumed>) = 0 [pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5478] close(5 [pid 5477] close(3 [pid 5048] close(3 [pid 5480] setpgid(0, 0 [pid 5481] <... prctl resumed>) = 0 [pid 5479] close(3 [pid 5478] <... close resumed>) = 0 [pid 5481] setpgid(0, 0 [pid 5478] close(6 [pid 5480] <... setpgid resumed>) = 0 [pid 5481] <... setpgid resumed>) = 0 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5479] <... close resumed>) = 0 [pid 5478] close(7 [pid 5477] close(4 [pid 5480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5479] symlink("/dev/binderfs", "./binderfs" [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = 0 [pid 5048] rmdir("./65" [pid 5480] <... openat resumed>) = 3 [pid 5479] <... symlink resumed>) = 0 [pid 5478] close(8 [pid 5477] close(5 [pid 5481] <... openat resumed>) = 3 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5480] write(3, "1000", 4 [pid 5477] close(6 [pid 5481] write(3, "1000", 4 [pid 5478] close(9 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... write resumed>) = 4 [pid 5481] <... write resumed>) = 4 [pid 5479] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(7 [pid 5048] mkdir("./66", 0777 [pid 5480] close(3) = 0 [pid 5481] close(3 [pid 5478] close(10 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] symlink("/dev/binderfs", "./binderfs" [pid 5481] <... close resumed>) = 0 [pid 5479] <... socket resumed>) = 3 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... mkdir resumed>) = 0 [pid 5481] symlink("/dev/binderfs", "./binderfs" [pid 5480] <... symlink resumed>) = 0 [pid 5481] <... symlink resumed>) = 0 [pid 5479] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5478] close(11 [pid 5477] close(8 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5479] <... socket resumed>) = 4 [pid 5480] <... socket resumed>) = 3 [pid 5478] close(12 [pid 5477] close(9 [pid 5479] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5480] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5479] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5478] close(13 [pid 5477] close(10 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5480] <... socket resumed>) = 4 [pid 5481] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5479] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5481] <... socket resumed>) = 3 [pid 5479] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5478] close(14 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5480] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5481] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5479] memfd_create("syzkaller", 0 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(11 [pid 5480] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5481] <... socket resumed>) = 4 [pid 5478] close(15 [pid 5048] close(3 [pid 5481] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5478] close(16) = -1 EBADF (Bad file descriptor) [pid 5478] close(17) = -1 EBADF (Bad file descriptor) [pid 5481] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5478] close(18 [pid 5481] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(19) = -1 EBADF (Bad file descriptor) [pid 5481] memfd_create("syzkaller", 0 [pid 5478] close(20) = -1 EBADF (Bad file descriptor) [pid 5480] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5479] <... memfd_create resumed>) = 5 [pid 5478] close(21 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(22) = -1 EBADF (Bad file descriptor) [pid 5478] close(23) = -1 EBADF (Bad file descriptor) [pid 5477] close(12 [pid 5480] memfd_create("syzkaller", 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5478] close(24) = -1 EBADF (Bad file descriptor) [pid 5478] close(25 [pid 5479] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(26) = -1 EBADF (Bad file descriptor) [pid 5478] close(27) = -1 EBADF (Bad file descriptor) [pid 5478] close(28) = -1 EBADF (Bad file descriptor) [pid 5478] close(29) = -1 EBADF (Bad file descriptor) [pid 5478] exit_group(0) = ? [pid 5478] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5051] newfstatat(3, "", [pid 5479] mkdir("./file0", 000 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./70/binderfs") = 0 [pid 5051] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5051] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./70/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", [pid 5477] close(13 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, [pid 5479] <... mkdir resumed>) = 0 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5051] rmdir("./70/file0") = 0 [pid 5051] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] close(3 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 68 ./strace-static-x86_64: Process 5482 attached [pid 5479] symlink(NULL, NULL [pid 5477] close(14 [pid 5051] <... close resumed>) = 0 [pid 5482] set_robust_list(0x5555566e0760, 24 [pid 5051] rmdir("./70" [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... set_robust_list resumed>) = 0 [pid 5479] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5477] close(15 [pid 5051] <... rmdir resumed>) = 0 [pid 5479] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./71", 0777 [pid 5482] chdir("./66" [pid 5479] <... mount resumed>) = 0 [pid 5477] close(16 [pid 5051] <... mkdir resumed>) = 0 [pid 5479] open(NULL, O_RDONLY [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5482] <... chdir resumed>) = 0 [pid 5479] <... open resumed>) = -1 EFAULT (Bad address) [pid 5477] close(17 [pid 5051] <... openat resumed>) = 3 [pid 5482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5479] close(3 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5482] <... prctl resumed>) = 0 [pid 5480] <... memfd_create resumed>) = 5 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5482] setpgid(0, 0 [pid 5477] close(18 [pid 5480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5482] <... setpgid resumed>) = 0 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5480] <... mmap resumed>) = 0x7f1263f98000 [pid 5477] close(19 [pid 5482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5480] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5479] <... close resumed>) = 0 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] mkdir("./file0", 000 [pid 5479] close(4 [pid 5477] close(20) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = 0 [pid 5482] <... openat resumed>) = 3 [pid 5480] <... mkdir resumed>) = 0 [pid 5479] close(5 [pid 5477] close(21 [pid 5482] write(3, "1000", 4 [pid 5480] symlink(NULL, NULL [pid 5482] <... write resumed>) = 4 [pid 5479] <... close resumed>) = 0 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(3 [pid 5480] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5479] close(6 [pid 5477] close(22 [pid 5482] <... close resumed>) = 0 [pid 5480] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... mount resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 73 [pid 5479] close(7) = -1 EBADF (Bad file descriptor) [pid 5479] close(8) = -1 EBADF (Bad file descriptor) [pid 5482] symlink("/dev/binderfs", "./binderfs" [pid 5480] open(NULL, O_RDONLY [pid 5479] close(9) = -1 EBADF (Bad file descriptor) [pid 5480] <... open resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 5483 attached [pid 5483] set_robust_list(0x5555566e0760, 24 [pid 5482] <... symlink resumed>) = 0 [pid 5480] close(3 [pid 5483] <... set_robust_list resumed>) = 0 [pid 5482] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5480] <... close resumed>) = 0 [pid 5479] close(10 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] chdir("./71" [pid 5482] <... socket resumed>) = 3 [pid 5480] close(4 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(23 [pid 5483] <... chdir resumed>) = 0 [pid 5480] <... close resumed>) = 0 [pid 5481] <... memfd_create resumed>) = 5 [pid 5479] close(11 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5483] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5480] close(5 [pid 5481] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(24 [pid 5482] <... socket resumed>) = 4 [pid 5483] <... prctl resumed>) = 0 [pid 5482] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5480] <... close resumed>) = 0 [pid 5481] <... mmap resumed>) = 0x7f1263f98000 [pid 5479] close(12 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] setpgid(0, 0) = 0 [pid 5481] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [ 107.401568][ T5479] __do_sys_memfd_create: 135 callbacks suppressed [ 107.401589][ T5479] syz-executor493[5479]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 107.406905][ T5481] syz-executor493[5481]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 107.433678][ T5480] syz-executor493[5480]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5480] close(6 [pid 5481] mkdir("./file0", 000 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(25 [pid 5482] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(13 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5480] close(7 [pid 5481] <... mkdir resumed>) = 0 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(14 [pid 5477] close(26 [pid 5483] write(3, "1000", 4 [pid 5482] memfd_create("syzkaller", 0 [pid 5480] close(8 [pid 5483] <... write resumed>) = 4 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] symlink(NULL, NULL [pid 5483] close(3 [pid 5480] close(9 [pid 5481] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5483] <... close resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5483] symlink("/dev/binderfs", "./binderfs" [pid 5481] <... mount resumed>) = 0 [pid 5483] <... symlink resumed>) = 0 [pid 5483] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5481] open(NULL, O_RDONLY [pid 5483] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5481] <... open resumed>) = -1 EFAULT (Bad address) [pid 5481] close(3 [pid 5483] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5481] <... close resumed>) = 0 [pid 5483] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5483] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5481] close(4) = 0 [pid 5483] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5483] memfd_create("syzkaller", 0 [pid 5480] close(10 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(5) = 0 [pid 5482] <... memfd_create resumed>) = 5 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(15 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(11 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(27 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(16 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(12 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(6) = -1 EBADF (Bad file descriptor) [pid 5481] close(7) = -1 EBADF (Bad file descriptor) [pid 5481] close(8 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(17 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(13 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(18 [pid 5480] close(14 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(28 [pid 5482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5483] <... memfd_create resumed>) = 5 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(9 [pid 5479] close(19 [pid 5482] <... mmap resumed>) = 0x7f1263f98000 [pid 5480] close(15 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(20 [pid 5477] close(29 [pid 5480] close(16 [pid 5481] close(10 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(11 [pid 5479] close(21 [pid 5477] exit_group(0 [pid 5483] <... mmap resumed>) = 0x7f1263f98000 [pid 5480] close(17 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... exit_group resumed>) = ? [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(12) = -1 EBADF (Bad file descriptor) [pid 5481] close(13) = -1 EBADF (Bad file descriptor) [pid 5483] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5481] close(14 [pid 5477] +++ exited with 0 +++ [pid 5480] close(18 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(22 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(15 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(19 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(23 [pid 5482] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(16 [pid 5052] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5482] mkdir("./file0", 000 [pid 5480] close(20 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5481] close(17 [pid 5052] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5483] mkdir("./file0", 000 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(18 [pid 5479] close(24 [pid 5052] newfstatat(3, "", [pid 5483] <... mkdir resumed>) = 0 [pid 5482] <... mkdir resumed>) = 0 [pid 5480] close(21 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5482] symlink(NULL, NULL [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(19 [pid 5479] close(25 [pid 5052] getdents64(3, [pid 5482] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5480] close(22 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(20 [pid 5479] close(26 [pid 5052] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] symlink(NULL, NULL [pid 5480] close(23 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 107.487590][ T5482] syz-executor493[5482]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 107.499782][ T5483] syz-executor493[5483]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5482] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(21 [pid 5479] close(27 [pid 5052] newfstatat(AT_FDCWD, "./73/binderfs", [pid 5480] close(24 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5482] <... mount resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(22 [pid 5479] close(28 [pid 5052] unlink("./73/binderfs" [pid 5483] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5482] open(NULL, O_RDONLY [pid 5480] close(25 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5483] <... mount resumed>) = 0 [pid 5482] <... open resumed>) = -1 EFAULT (Bad address) [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(23 [pid 5479] close(29 [pid 5052] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5482] close(3 [pid 5480] close(26 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5483] open(NULL, O_RDONLY [pid 5482] <... close resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(24 [pid 5052] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... open resumed>) = -1 EFAULT (Bad address) [pid 5482] close(4 [pid 5480] close(27 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] exit_group(0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5482] <... close resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(25 [pid 5479] <... exit_group resumed>) = ? [pid 5480] close(28 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(26 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(27 [pid 5483] close(3 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./73/file0", [pid 5483] <... close resumed>) = 0 [pid 5481] close(28 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5483] close(4 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... close resumed>) = 0 [pid 5480] close(29 [pid 5481] close(29 [pid 5479] +++ exited with 0 +++ [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] close(5 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5483] <... close resumed>) = 0 [pid 5482] close(5 [pid 5480] exit_group(0 [pid 5481] exit_group(0 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5482] <... close resumed>) = 0 [pid 5480] <... exit_group resumed>) = ? [pid 5481] <... exit_group resumed>) = ? [pid 5053] <... restart_syscall resumed>) = 0 [pid 5483] close(6 [pid 5481] +++ exited with 0 +++ [pid 5052] <... openat resumed>) = 4 [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5483] close(7 [pid 5480] +++ exited with 0 +++ [pid 5053] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(4, [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5483] close(8 [pid 5482] close(6 [pid 5053] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(4, [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... restart_syscall resumed>) = 0 [pid 5483] close(9) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5482] close(7 [pid 5483] close(10 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(8 [pid 5053] getdents64(3, [pid 5050] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5482] close(9 [pid 5049] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(10) = -1 EBADF (Bad file descriptor) [pid 5483] close(11 [pid 5482] close(11 [pid 5052] close(4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... openat resumed>) = 3 [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5483] close(12 [pid 5482] close(12 [pid 5053] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... openat resumed>) = 3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5483] close(13 [pid 5482] close(13 [pid 5050] newfstatat(3, "", [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./68/binderfs", [pid 5052] <... close resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, [pid 5483] close(14 [pid 5482] close(14 [pid 5052] rmdir("./73/file0" [pid 5050] getdents64(3, [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5483] close(15 [pid 5482] close(15 [pid 5053] unlink("./68/binderfs" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5052] getdents64(3, [pid 5050] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] close(16 [pid 5482] close(16 [pid 5049] newfstatat(AT_FDCWD, "./68/binderfs", [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5483] close(17 [pid 5482] close(17 [pid 5053] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(AT_FDCWD, "./66/binderfs", [pid 5049] unlink("./68/binderfs" [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5052] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5483] close(18 [pid 5482] close(18 [pid 5053] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5050] unlink("./66/binderfs" [pid 5049] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] rmdir("./73" [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5483] close(19 [pid 5482] close(19 [pid 5053] newfstatat(AT_FDCWD, "./68/file0", [pid 5052] <... rmdir resumed>) = 0 [pid 5049] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] close(20 [pid 5482] close(20 [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] close(21 [pid 5482] close(21 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./68/file0", [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] mkdir("./74", 0777 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5483] close(22 [pid 5482] close(22 [pid 5053] <... openat resumed>) = 4 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5482] close(23) = -1 EBADF (Bad file descriptor) [pid 5482] close(24 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5482] close(25 [pid 5049] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5483] close(23 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] <... openat resumed>) = 4 [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(26 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... openat resumed>) = 3 [pid 5050] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(4, "", [pid 5483] close(24 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(27 [pid 5053] getdents64(4, [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] newfstatat(AT_FDCWD, "./66/file0", [pid 5483] close(25 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(4, [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(28 [pid 5053] close(4 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5483] close(26 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5050] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(29 [pid 5053] rmdir("./68/file0" [pid 5052] close(3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5483] close(27 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5482] exit_group(0 [pid 5053] getdents64(3, [pid 5049] getdents64(4, [pid 5482] <... exit_group resumed>) = ? [pid 5052] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5483] close(28 [pid 5050] <... openat resumed>) = 4 [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] close(29) = -1 EBADF (Bad file descriptor) [pid 5483] exit_group(0 [pid 5050] newfstatat(4, "", [pid 5483] <... exit_group resumed>) = ? [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5483] +++ exited with 0 +++ [pid 5482] +++ exited with 0 +++ [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] close(4 [pid 5053] close(3) = 0 [pid 5050] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5053] rmdir("./68" [pid 5049] rmdir("./68/file0" [pid 5048] <... restart_syscall resumed>) = 0 [pid 5050] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] close(4 [pid 5051] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5050] rmdir("./66/file0" [pid 5049] <... rmdir resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... rmdir resumed>) = 0 [pid 5049] getdents64(3, [pid 5048] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] mkdir("./69", 0777 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] close(3 [pid 5048] <... openat resumed>) = 3 [pid 5053] <... mkdir resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5048] newfstatat(3, "", [pid 5051] newfstatat(3, "", [pid 5050] getdents64(3, [pid 5049] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] rmdir("./68" [pid 5048] getdents64(3, ./strace-static-x86_64: Process 5484 attached [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] close(3 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5484] set_robust_list(0x5555566e0760, 24 [pid 5053] <... openat resumed>) = 3 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 76 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5484] <... set_robust_list resumed>) = 0 [pid 5051] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5484] chdir("./74" [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] mkdir("./69", 0777 [pid 5048] newfstatat(AT_FDCWD, "./66/binderfs", [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5484] <... chdir resumed>) = 0 [pid 5053] close(3 [pid 5051] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./66" [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... mkdir resumed>) = 0 [pid 5048] unlink("./66/binderfs" [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5484] <... prctl resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./71/binderfs", [pid 5048] <... unlink resumed>) = 0 [pid 5484] setpgid(0, 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5484] <... setpgid resumed>) = 0 [pid 5484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] unlink("./71/binderfs" [pid 5050] mkdir("./67", 0777 [pid 5048] <... umount2 resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5485 attached [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./66/file0", [pid 5484] <... openat resumed>) = 3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5485] set_robust_list(0x5555566e0760, 24 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 71 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] <... set_robust_list resumed>) = 0 [pid 5484] write(3, "1000", 4 [pid 5051] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5485] chdir("./69" [pid 5484] <... write resumed>) = 4 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5485] <... chdir resumed>) = 0 [pid 5484] close(3 [pid 5050] <... openat resumed>) = 3 [pid 5049] close(3 [pid 5048] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] <... close resumed>) = 0 [pid 5485] <... prctl resumed>) = 0 [pid 5484] <... close resumed>) = 0 [pid 5051] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... openat resumed>) = 4 [pid 5484] symlink("/dev/binderfs", "./binderfs" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5485] setpgid(0, 0 [pid 5484] <... symlink resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5485] <... setpgid resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./71/file0", [pid 5050] close(3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... close resumed>) = 0 [pid 5484] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5484] <... socket resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5485] <... openat resumed>) = 3 [pid 5051] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] getdents64(4, [pid 5484] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] <... openat resumed>) = 4 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5486 attached [pid 5485] write(3, "1000", 4 [pid 5484] <... socket resumed>) = 4 [pid 5051] newfstatat(4, "", [pid 5048] getdents64(4, [pid 5485] <... write resumed>) = 4 [pid 5486] set_robust_list(0x5555566e0760, 24 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5485] close(3 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 71 [pid 5048] close(4 [pid 5485] <... close resumed>) = 0 [pid 5485] symlink("/dev/binderfs", "./binderfs" [pid 5484] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... close resumed>) = 0 [pid 5486] <... set_robust_list resumed>) = 0 [pid 5484] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] getdents64(4, ./strace-static-x86_64: Process 5487 attached [pid 5485] <... symlink resumed>) = 0 [pid 5484] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5486] chdir("./69" [pid 5048] rmdir("./66/file0" [pid 5487] set_robust_list(0x5555566e0760, 24 [pid 5486] <... chdir resumed>) = 0 [pid 5484] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(4, [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 69 [pid 5487] <... set_robust_list resumed>) = 0 [pid 5486] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5485] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5484] memfd_create("syzkaller", 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5486] <... prctl resumed>) = 0 [pid 5487] chdir("./67" [pid 5486] setpgid(0, 0 [pid 5485] <... socket resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(3, [pid 5051] close(4) = 0 [pid 5051] rmdir("./71/file0" [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5487] <... chdir resumed>) = 0 [pid 5486] <... setpgid resumed>) = 0 [pid 5485] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] <... rmdir resumed>) = 0 [pid 5048] close(3 [pid 5487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5485] <... socket resumed>) = 4 [pid 5051] getdents64(3, [pid 5048] <... close resumed>) = 0 [pid 5487] <... prctl resumed>) = 0 [pid 5486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5485] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] rmdir("./66" [pid 5485] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5487] setpgid(0, 0 [pid 5051] close(3 [pid 5048] <... rmdir resumed>) = 0 [pid 5485] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] mkdir("./67", 0777 [pid 5485] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5487] <... setpgid resumed>) = 0 [pid 5485] memfd_create("syzkaller", 0 [pid 5051] <... close resumed>) = 0 [pid 5487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] rmdir("./71") = 0 [pid 5487] <... openat resumed>) = 3 [pid 5051] mkdir("./72", 0777) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5051] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5487] write(3, "1000", 4) = 4 [pid 5487] close(3) = 0 [pid 5487] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5051] close(3) = 0 [pid 5487] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5487] <... socket resumed>) = 3 [pid 5487] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5487] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5048] <... mkdir resumed>) = 0 [pid 5487] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5487] memfd_create("syzkaller", 0 [pid 5486] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5486] write(3, "1000", 4 [pid 5485] <... memfd_create resumed>) = 5 [pid 5484] <... memfd_create resumed>) = 5 [pid 5048] <... openat resumed>) = 3 [pid 5486] <... write resumed>) = 4 [pid 5485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5486] close(3) = 0 [pid 5484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 74 [pid 5486] symlink("/dev/binderfs", "./binderfs" [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5484] <... mmap resumed>) = 0x7f1263f98000 [pid 5486] <... symlink resumed>) = 0 [pid 5485] <... mmap resumed>) = 0x7f1263f98000 [pid 5048] close(3 [pid 5486] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5484] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... close resumed>) = 0 [pid 5486] <... socket resumed>) = 3 [pid 5484] mkdir("./file0", 000 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5486] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5485] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5484] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5488 attached [pid 5486] <... socket resumed>) = 4 [pid 5485] mkdir("./file0", 000 [pid 5484] symlink(NULL, NULL./strace-static-x86_64: Process 5489 attached [ 107.657859][ T5484] syz-executor493[5484]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 107.676516][ T5485] syz-executor493[5485]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 107.689281][ T5487] syz-executor493[5487]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5486] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5488] set_robust_list(0x5555566e0760, 24 [pid 5486] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5484] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 69 [pid 5489] set_robust_list(0x5555566e0760, 24 [pid 5486] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5485] <... mkdir resumed>) = 0 [pid 5484] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5489] <... set_robust_list resumed>) = 0 [pid 5486] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5485] symlink(NULL, NULL [pid 5484] <... mount resumed>) = 0 [pid 5488] <... set_robust_list resumed>) = 0 [pid 5484] open(NULL, O_RDONLY [pid 5488] chdir("./72" [pid 5484] <... open resumed>) = -1 EFAULT (Bad address) [pid 5488] <... chdir resumed>) = 0 [pid 5486] memfd_create("syzkaller", 0 [pid 5484] close(3 [pid 5485] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5489] chdir("./67" [pid 5485] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5484] <... close resumed>) = 0 [pid 5488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5484] close(4 [pid 5488] setpgid(0, 0 [pid 5484] <... close resumed>) = 0 [pid 5488] <... setpgid resumed>) = 0 [pid 5484] close(5) = 0 [pid 5484] close(6) = -1 EBADF (Bad file descriptor) [pid 5484] close(7) = -1 EBADF (Bad file descriptor) [pid 5488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5484] close(8 [pid 5488] <... openat resumed>) = 3 [pid 5488] write(3, "1000", 4 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... write resumed>) = 4 [pid 5484] close(9) = -1 EBADF (Bad file descriptor) [pid 5484] close(10 [pid 5488] close(3 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = 0 [pid 5484] close(11 [pid 5488] symlink("/dev/binderfs", "./binderfs" [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... symlink resumed>) = 0 [pid 5484] close(12) = -1 EBADF (Bad file descriptor) [pid 5484] close(13) = -1 EBADF (Bad file descriptor) [pid 5484] close(14) = -1 EBADF (Bad file descriptor) [pid 5484] close(15) = -1 EBADF (Bad file descriptor) [pid 5484] close(16) = -1 EBADF (Bad file descriptor) [pid 5484] close(17) = -1 EBADF (Bad file descriptor) [pid 5484] close(18) = -1 EBADF (Bad file descriptor) [pid 5488] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5484] close(19) = -1 EBADF (Bad file descriptor) [pid 5484] close(20) = -1 EBADF (Bad file descriptor) [pid 5489] <... chdir resumed>) = 0 [pid 5488] <... socket resumed>) = 3 [pid 5485] <... mount resumed>) = 0 [pid 5484] close(21 [pid 5489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5488] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5485] open(NULL, O_RDONLY [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... socket resumed>) = 4 [pid 5484] close(22 [pid 5489] <... prctl resumed>) = 0 [pid 5488] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5485] <... open resumed>) = -1 EFAULT (Bad address) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] setpgid(0, 0 [pid 5488] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5484] close(23 [pid 5485] close(3 [pid 5489] <... setpgid resumed>) = 0 [pid 5488] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5488] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5485] <... close resumed>) = 0 [pid 5484] close(24 [pid 5488] memfd_create("syzkaller", 0 [pid 5487] <... memfd_create resumed>) = 5 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... openat resumed>) = 3 [pid 5485] close(4) = 0 [pid 5484] close(25) = -1 EBADF (Bad file descriptor) [pid 5485] close(5 [pid 5484] close(26 [pid 5489] write(3, "1000", 4 [pid 5485] <... close resumed>) = 0 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... write resumed>) = 4 [pid 5489] close(3 [pid 5484] close(27 [pid 5489] <... close resumed>) = 0 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5489] symlink("/dev/binderfs", "./binderfs" [pid 5484] close(28 [pid 5487] <... mmap resumed>) = 0x7f1263f98000 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5484] close(29 [pid 5489] <... symlink resumed>) = 0 [pid 5487] mkdir("./file0", 000 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] exit_group(0) = ? [pid 5489] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5486] <... memfd_create resumed>) = 5 [pid 5485] close(6 [pid 5484] +++ exited with 0 +++ [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5485] close(7 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5489] <... socket resumed>) = 3 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5489] <... socket resumed>) = 4 [pid 5486] <... mmap resumed>) = 0x7f1263f98000 [pid 5489] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5486] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5485] close(8 [pid 5489] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] <... restart_syscall resumed>) = 0 [pid 5489] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5486] mkdir("./file0", 000 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] <... mkdir resumed>) = 0 [pid 5486] <... mkdir resumed>) = 0 [pid 5485] close(9 [pid 5487] symlink(NULL, NULL [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] close(10 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5485] close(11 [pid 5487] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5486] symlink(NULL, NULL [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5487] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5486] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5485] close(12 [pid 5052] newfstatat(3, "", [pid 5489] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5487] <... mount resumed>) = 0 [pid 5486] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5487] open(NULL, O_RDONLY [pid 5485] close(13 [pid 5052] getdents64(3, [pid 5489] memfd_create("syzkaller", 0 [pid 5486] <... mount resumed>) = 0 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5487] <... open resumed>) = -1 EFAULT (Bad address) [pid 5485] close(14 [pid 5052] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5487] close(3 [pid 5486] open(NULL, O_RDONLY [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... memfd_create resumed>) = 5 [pid 5488] <... memfd_create resumed>) = 5 [pid 5487] <... close resumed>) = 0 [pid 5486] <... open resumed>) = -1 EFAULT (Bad address) [pid 5485] close(15 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5487] close(4 [pid 5486] close(3 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./74/binderfs", [pid 5488] <... mmap resumed>) = 0x7f1263f98000 [pid 5487] <... close resumed>) = 0 [pid 5489] <... mmap resumed>) = 0x7f1263f98000 [pid 5488] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5487] close(5 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5489] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5487] <... close resumed>) = 0 [pid 5486] <... close resumed>) = 0 [pid 5485] close(16 [pid 5052] unlink("./74/binderfs" [pid 5489] mkdir("./file0", 000 [pid 5488] mkdir("./file0", 000 [pid 5487] close(6 [pid 5486] close(4 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5488] <... mkdir resumed>) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(17 [pid 5052] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5486] <... close resumed>) = 0 [pid 5487] close(7) = -1 EBADF (Bad file descriptor) [pid 5487] close(8) = -1 EBADF (Bad file descriptor) [pid 5486] close(5 [pid 5052] <... umount2 resumed>) = 0 [pid 5489] <... mkdir resumed>) = 0 [pid 5488] symlink(NULL, NULL [pid 5487] close(9 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] symlink(NULL, NULL [pid 5488] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5487] close(10 [pid 5486] <... close resumed>) = 0 [pid 5485] close(18 [pid 5052] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5489] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5488] <... mount resumed>) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(6 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5489] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./74/file0", [pid 5485] close(19 [pid 5487] close(11) = -1 EBADF (Bad file descriptor) [pid 5489] <... mount resumed>) = 0 [pid 5487] close(12 [pid 5489] open(NULL, O_RDONLY [pid 5488] open(NULL, O_RDONLY [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(7 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5489] <... open resumed>) = -1 EFAULT (Bad address) [pid 5488] <... open resumed>) = -1 EFAULT (Bad address) [pid 5487] close(13 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(20 [pid 5052] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5489] close(3 [pid 5488] close(3 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(8 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5489] <... close resumed>) = 0 [pid 5488] <... close resumed>) = 0 [pid 5487] close(14 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(21 [pid 5052] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5489] close(4 [pid 5488] close(4 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(9 [pid 5489] <... close resumed>) = 0 [pid 5488] <... close resumed>) = 0 [pid 5487] close(15 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5489] close(5 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(10 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... close resumed>) = 0 [pid 5488] close(5 [pid 5487] close(16 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(22 [pid 5052] newfstatat(4, "", [pid 5489] close(6 [pid 5488] <... close resumed>) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(11 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(6 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(7 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] close(17 [pid 5486] close(12 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(7 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5489] close(8 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] close(18 [pid 5486] close(13 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(8 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(23 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5489] close(9 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] close(19 [pid 5486] close(14 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(9 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5489] close(10 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] close(20 [pid 5485] close(24 [pid 5052] close(4 [pid 5486] close(15 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(10 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5489] close(11 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 107.711974][ T5486] syz-executor493[5486]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 107.728912][ T5488] syz-executor493[5488]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5487] close(21 [pid 5486] close(16 [pid 5485] close(25 [pid 5052] rmdir("./74/file0" [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(11 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(12 [pid 5487] close(22 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(13 [pid 5488] close(12 [pid 5487] close(23 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5489] close(14 [pid 5488] close(13 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] close(24 [pid 5052] getdents64(3, [pid 5489] close(15 [pid 5488] close(14 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(26 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] close(25 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5489] close(16 [pid 5488] close(15 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(17 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] close(26 [pid 5489] close(17 [pid 5488] close(16 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(18 [pid 5488] close(17 [pid 5487] close(27 [pid 5052] <... close resumed>) = 0 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(18 [pid 5485] close(27 [pid 5489] close(19 [pid 5488] close(18 [pid 5487] close(28 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./74" [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(19 [pid 5485] close(28 [pid 5489] close(20 [pid 5488] close(19 [pid 5487] close(29 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(21 [pid 5488] close(20 [pid 5487] exit_group(0 [pid 5486] close(20 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./75", 0777 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] <... exit_group resumed>) = ? [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(22 [pid 5486] close(21 [pid 5485] close(29 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(23 [pid 5488] close(21) = -1 EBADF (Bad file descriptor) [pid 5488] close(22) = -1 EBADF (Bad file descriptor) [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(23 [pid 5489] close(24 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] exit_group(0 [pid 5052] <... mkdir resumed>) = 0 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(25 [pid 5488] close(24 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(22 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5489] close(26 [pid 5488] close(25 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(23 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5485] <... exit_group resumed>) = ? [pid 5488] close(26) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5488] close(27) = -1 EBADF (Bad file descriptor) [pid 5488] close(28) = -1 EBADF (Bad file descriptor) [pid 5488] close(29 [pid 5487] +++ exited with 0 +++ [pid 5485] +++ exited with 0 +++ [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5489] close(27) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(24 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] <... close resumed>) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5489] close(28 [pid 5488] exit_group(0 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... exit_group resumed>) = ? [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(25 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5488] +++ exited with 0 +++ [pid 5050] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5051] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(3, "", [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] getdents64(3, [pid 5489] close(29 [pid 5486] close(26 [pid 5053] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(3, "", [pid 5050] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5490 attached [pid 5489] exit_group(0 [pid 5486] close(27 [pid 5053] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5050] newfstatat(AT_FDCWD, "./67/binderfs", [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 77 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5490] set_robust_list(0x5555566e0760, 24 [pid 5486] close(28 [pid 5053] newfstatat(3, "", [pid 5051] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] unlink("./67/binderfs" [pid 5489] <... exit_group resumed>) = ? [pid 5490] <... set_robust_list resumed>) = 0 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... unlink resumed>) = 0 [pid 5490] chdir("./75" [pid 5486] close(29 [pid 5053] getdents64(3, [pid 5051] newfstatat(AT_FDCWD, "./72/binderfs", [pid 5050] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5490] <... chdir resumed>) = 0 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5486] exit_group(0 [pid 5053] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] unlink("./72/binderfs" [pid 5490] <... prctl resumed>) = 0 [pid 5486] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5051] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5490] setpgid(0, 0) = 0 [pid 5490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5486] +++ exited with 0 +++ [pid 5053] newfstatat(AT_FDCWD, "./69/binderfs", [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5490] <... openat resumed>) = 3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] unlink("./69/binderfs" [pid 5490] write(3, "1000", 4) = 4 [pid 5490] close(3) = 0 [pid 5490] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5053] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./72/file0", [pid 5050] newfstatat(AT_FDCWD, "./67/file0", [pid 5049] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5489] +++ exited with 0 +++ [pid 5051] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5051] newfstatat(4, "", [pid 5050] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5490] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5490] <... socket resumed>) = 3 [pid 5053] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5050] newfstatat(4, "", [pid 5048] <... restart_syscall resumed>) = 0 [pid 5490] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5490] <... socket resumed>) = 4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] close(4 [pid 5053] newfstatat(AT_FDCWD, "./69/file0", [pid 5051] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5490] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] rmdir("./72/file0" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] newfstatat(3, "", [pid 5048] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5490] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5490] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] getdents64(4, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5490] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5490] memfd_create("syzkaller", 0 [pid 5053] <... openat resumed>) = 4 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... openat resumed>) = 3 [pid 5053] newfstatat(4, "", [pid 5050] close(4 [pid 5049] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(3, "", [pid 5490] <... memfd_create resumed>) = 5 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5050] rmdir("./67/file0" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(3, [pid 5053] getdents64(4, [pid 5049] newfstatat(AT_FDCWD, "./69/binderfs", [pid 5490] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] close(3 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] close(4 [pid 5049] unlink("./69/binderfs" [pid 5048] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... close resumed>) = 0 [pid 5490] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] rmdir("./69/file0" [pid 5051] rmdir("./72" [pid 5050] getdents64(3, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5490] mkdir("./file0", 000 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5490] <... mkdir resumed>) = 0 [pid 5050] close(3 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./67/binderfs", [pid 5050] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] mkdir("./73", 0777 [pid 5050] rmdir("./67" [pid 5048] unlink("./67/binderfs" [pid 5490] symlink(NULL, NULL [pid 5053] getdents64(3, [pid 5051] <... mkdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5490] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5049] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] newfstatat(AT_FDCWD, "./69/file0", [pid 5053] close(3 [pid 5490] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5490] <... mount resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] mkdir("./68", 0777 [pid 5053] rmdir("./69" [pid 5050] <... mkdir resumed>) = 0 [pid 5049] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5490] open(NULL, O_RDONLY [pid 5051] <... openat resumed>) = 3 [pid 5490] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5490] close(3 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5490] <... close resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... openat resumed>) = 4 [pid 5048] newfstatat(AT_FDCWD, "./67/file0", [pid 5490] close(4 [pid 5051] close(3 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] newfstatat(4, "", [pid 5048] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5490] <... close resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5490] close(5) = 0 [pid 5053] mkdir("./70", 0777 [pid 5049] getdents64(4, [pid 5490] close(6 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] <... mkdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] close(3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... openat resumed>) = 4 [pid 5490] close(7 [pid 5053] <... openat resumed>) = 3 [pid 5050] <... close resumed>) = 0 [pid 5049] getdents64(4, [pid 5048] newfstatat(4, "", [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5490] close(8 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] close(4 [pid 5053] close(3 [pid 5048] getdents64(4, [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] rmdir("./69/file0"./strace-static-x86_64: Process 5491 attached [pid 5048] getdents64(4, [pid 5490] close(9 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 75 [pid 5491] set_robust_list(0x5555566e0760, 24 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5490] close(10 [pid 5048] close(4 [pid 5491] <... set_robust_list resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(11 [pid 5048] <... close resumed>) = 0 [pid 5491] chdir("./73" [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5048] rmdir("./67/file0"./strace-static-x86_64: Process 5492 attached [pid 5490] close(12 [pid 5492] set_robust_list(0x5555566e0760, 24 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 70 [pid 5049] getdents64(3, [pid 5048] <... rmdir resumed>) = 0 [pid 5490] close(13 [pid 5492] <... set_robust_list resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] chdir("./68" [pid 5490] close(14 [pid 5491] <... chdir resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5491] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5490] close(15 [pid 5492] <... chdir resumed>) = 0 [pid 5491] <... prctl resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5048] getdents64(3, [pid 5492] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5491] setpgid(0, 0 [pid 5490] close(16 [pid 5492] <... prctl resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] setpgid(0, 0 [pid 5491] <... setpgid resumed>) = 0 [pid 5490] close(17 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... setpgid resumed>) = 0 [pid 5490] close(18 [pid 5492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5490] close(19) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 ./strace-static-x86_64: Process 5493 attached [pid 5492] <... openat resumed>) = 3 [pid 5491] <... openat resumed>) = 3 [pid 5490] close(20 [pid 5049] <... close resumed>) = 0 [pid 5048] rmdir("./67" [pid 5493] set_robust_list(0x5555566e0760, 24 [pid 5491] write(3, "1000", 4 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 72 [pid 5049] rmdir("./69" [pid 5492] write(3, "1000", 4 [pid 5490] close(21 [pid 5492] <... write resumed>) = 4 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] <... write resumed>) = 4 [pid 5048] <... rmdir resumed>) = 0 [pid 5492] close(3 [pid 5490] close(22 [pid 5493] <... set_robust_list resumed>) = 0 [pid 5492] <... close resumed>) = 0 [pid 5491] close(3 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5048] mkdir("./68", 0777 [pid 5493] chdir("./70" [pid 5492] symlink("/dev/binderfs", "./binderfs" [pid 5491] <... close resumed>) = 0 [pid 5490] close(23 [pid 5493] <... chdir resumed>) = 0 [pid 5492] <... symlink resumed>) = 0 [pid 5491] symlink("/dev/binderfs", "./binderfs" [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... mkdir resumed>) = 0 [pid 5493] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5490] close(24 [pid 5493] <... prctl resumed>) = 0 [pid 5491] <... symlink resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] setpgid(0, 0 [pid 5491] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5490] close(25 [pid 5049] mkdir("./70", 0777 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5493] <... setpgid resumed>) = 0 [pid 5492] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5491] <... socket resumed>) = 3 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5492] <... socket resumed>) = 3 [pid 5491] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5490] close(26 [pid 5492] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... mkdir resumed>) = 0 [pid 5492] <... socket resumed>) = 4 [pid 5491] <... socket resumed>) = 4 [pid 5490] close(27 [pid 5048] <... openat resumed>) = 3 [pid 5492] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5491] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] <... openat resumed>) = 3 [pid 5492] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5490] close(28 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5493] write(3, "1000", 4 [pid 5492] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5491] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5493] <... write resumed>) = 4 [pid 5492] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5491] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5490] close(29 [pid 5493] close(3 [pid 5492] memfd_create("syzkaller", 0 [pid 5491] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5493] <... close resumed>) = 0 [pid 5493] symlink("/dev/binderfs", "./binderfs" [pid 5491] memfd_create("syzkaller", 0 [pid 5490] exit_group(0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... close resumed>) = 0 [pid 5493] <... symlink resumed>) = 0 [pid 5492] <... memfd_create resumed>) = 5 [pid 5490] <... exit_group resumed>) = ? [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5493] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5492] <... mmap resumed>) = 0x7f1263f98000 [pid 5491] <... memfd_create resumed>) = 5 [pid 5049] close(3 [pid 5493] <... socket resumed>) = 3 [pid 5049] <... close resumed>) = 0 [pid 5493] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5493] <... socket resumed>) = 4 [pid 5492] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5492] mkdir("./file0", 000) = 0 [pid 5491] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5493] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5491] <... mmap resumed>) = 0x7f1263f98000 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 70 [pid 5492] symlink(NULL, NULL [pid 5490] +++ exited with 0 +++ [pid 5492] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5492] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5052] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5492] open(NULL, O_RDONLY [pid 5491] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] newfstatat(AT_FDCWD, "./75/binderfs", [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 72 ./strace-static-x86_64: Process 5495 attached ./strace-static-x86_64: Process 5494 attached [pid 5493] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5492] <... open resumed>) = -1 EFAULT (Bad address) [pid 5491] mkdir("./file0", 000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5492] close(3 [pid 5052] unlink("./75/binderfs" [pid 5493] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5492] <... close resumed>) = 0 [pid 5491] <... mkdir resumed>) = 0 [pid 5494] set_robust_list(0x5555566e0760, 24 [pid 5052] <... unlink resumed>) = 0 [pid 5495] set_robust_list(0x5555566e0760, 24) = 0 [pid 5494] <... set_robust_list resumed>) = 0 [pid 5493] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5492] close(4 [pid 5491] symlink(NULL, NULL [pid 5052] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5495] chdir("./70" [pid 5494] chdir("./68" [pid 5493] memfd_create("syzkaller", 0 [pid 5492] <... close resumed>) = 0 [pid 5491] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5495] <... chdir resumed>) = 0 [pid 5494] <... chdir resumed>) = 0 [pid 5493] <... memfd_create resumed>) = 5 [pid 5492] close(5 [pid 5491] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5493] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5492] <... close resumed>) = 0 [pid 5495] <... prctl resumed>) = 0 [pid 5494] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5493] <... mmap resumed>) = 0x7f1263f98000 [pid 5492] close(6 [pid 5491] <... mount resumed>) = 0 [pid 5495] setpgid(0, 0 [pid 5494] <... prctl resumed>) = 0 [pid 5493] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] open(NULL, O_RDONLY [pid 5495] <... setpgid resumed>) = 0 [pid 5494] setpgid(0, 0 [pid 5493] mkdir("./file0", 000 [pid 5492] close(7 [pid 5491] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... umount2 resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] <... mkdir resumed>) = 0 [pid 5492] close(8 [pid 5491] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5494] <... setpgid resumed>) = 0 [pid 5493] symlink(NULL, NULL [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./75/file0", [pid 5495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5493] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5492] close(9 [pid 5491] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5495] <... openat resumed>) = 3 [pid 5493] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(4 [pid 5052] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5492] close(10 [pid 5491] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5495] write(3, "1000", 4 [pid 5494] <... openat resumed>) = 3 [pid 5492] close(11 [pid 5491] close(5 [pid 5052] <... openat resumed>) = 4 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5495] <... write resumed>) = 4 [pid 5492] close(12 [pid 5491] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5494] write(3, "1000", 4 [pid 5495] close(3 [pid 5493] <... mount resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... write resumed>) = 4 [pid 5491] close(6 [pid 5052] getdents64(4, [pid 5495] <... close resumed>) = 0 [pid 5494] close(3 [pid 5493] open(NULL, O_RDONLY [pid 5492] close(13 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5494] <... close resumed>) = 0 [pid 5493] <... open resumed>) = -1 EFAULT (Bad address) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] symlink("/dev/binderfs", "./binderfs" [pid 5494] symlink("/dev/binderfs", "./binderfs" [pid 5493] close(3 [pid 5492] close(14 [pid 5491] close(7 [pid 5052] getdents64(4, [pid 5494] <... symlink resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5493] <... close resumed>) = 0 [pid 5492] close(15 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5495] <... symlink resumed>) = 0 [pid 5494] <... socket resumed>) = 3 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(8 [pid 5493] close(4 [pid 5495] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5492] close(16 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5495] <... socket resumed>) = 3 [pid 5493] <... close resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(9 [pid 5052] <... close resumed>) = 0 [pid 5495] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5494] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5493] close(5 [pid 5492] close(17 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./75/file0" [pid 5493] <... close resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... socket resumed>) = 4 [pid 5493] close(6 [pid 5492] close(18 [pid 5052] <... rmdir resumed>) = 0 [pid 5491] close(10 [pid 5494] <... socket resumed>) = 4 [pid 5495] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5494] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5494] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5493] close(7 [pid 5492] close(19) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5492] close(20 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(21 [pid 5052] close(3 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(22 [pid 5495] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5494] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5495] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5494] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5493] close(8 [pid 5492] close(23 [pid 5491] close(11 [pid 5495] memfd_create("syzkaller", 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] memfd_create("syzkaller", 0 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./75" [pid 5495] <... memfd_create resumed>) = 5 [pid 5494] <... memfd_create resumed>) = 5 [pid 5493] close(9 [pid 5492] close(24 [pid 5491] close(12 [pid 5052] <... rmdir resumed>) = 0 [pid 5495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... mmap resumed>) = 0x7f1263f98000 [pid 5494] <... mmap resumed>) = 0x7f1263f98000 [pid 5493] close(10 [pid 5492] close(25 [pid 5491] close(13 [pid 5495] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5494] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./76", 0777 [pid 5495] mkdir("./file0", 000 [pid 5494] mkdir("./file0", 000 [pid 5493] close(11 [pid 5492] close(26 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5492] close(27 [pid 5491] close(14 [pid 5495] <... mkdir resumed>) = 0 [pid 5493] close(12 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(15 [pid 5495] symlink(NULL, NULL [pid 5494] <... mkdir resumed>) = 0 [pid 5493] close(13 [pid 5492] close(28 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5494] symlink(NULL, NULL [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(16 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5495] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5494] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5493] close(14 [pid 5492] close(29 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(17 [pid 5052] <... openat resumed>) = 3 [pid 5493] close(15 [pid 5492] exit_group(0 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5495] <... mount resumed>) = 0 [pid 5494] <... mount resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... exit_group resumed>) = ? [pid 5491] close(18 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5495] open(NULL, O_RDONLY [pid 5494] open(NULL, O_RDONLY [pid 5493] close(16 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(19) = -1 EBADF (Bad file descriptor) [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(20 [pid 5494] <... open resumed>) = -1 EFAULT (Bad address) [pid 5493] close(17 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5495] <... open resumed>) = -1 EFAULT (Bad address) [pid 5494] close(3 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(21 [pid 5052] <... close resumed>) = 0 [pid 5495] close(3 [pid 5494] <... close resumed>) = 0 [pid 5493] close(18 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5495] <... close resumed>) = 0 [pid 5494] close(4 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] +++ exited with 0 +++ [pid 5491] close(22 [pid 5495] close(4 [pid 5494] <... close resumed>) = 0 [pid 5493] close(19 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(23 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5493] close(20 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(24 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5493] close(21 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5495] <... close resumed>) = 0 [pid 5494] close(5 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(25 [pid 5050] <... openat resumed>) = 3 [pid 5494] <... close resumed>) = 0 [pid 5493] close(22 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(3, "", [pid 5494] close(6 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(26 [pid 5495] close(5 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5496 attached [pid 5495] <... close resumed>) = 0 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] close(23 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5496] set_robust_list(0x5555566e0760, 24 [pid 5495] close(6 [pid 5494] close(7 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(27 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5496] <... set_robust_list resumed>) = 0 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] close(24 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 78 [pid 5050] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5496] chdir("./76" [pid 5495] close(7 [pid 5494] close(8 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(28 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5496] <... chdir resumed>) = 0 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] close(25 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./68/binderfs", [pid 5496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5495] close(8 [pid 5494] close(9 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(29 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5496] <... prctl resumed>) = 0 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] unlink("./68/binderfs" [pid 5496] setpgid(0, 0 [pid 5491] exit_group(0 [pid 5050] <... unlink resumed>) = 0 [pid 5496] <... setpgid resumed>) = 0 [pid 5491] <... exit_group resumed>) = ? [pid 5496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5491] +++ exited with 0 +++ [pid 5050] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] close(26 [pid 5496] <... openat resumed>) = 3 [pid 5495] close(9 [pid 5494] close(10 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] close(27 [pid 5050] <... umount2 resumed>) = 0 [pid 5495] close(10 [pid 5494] close(11 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] write(3, "1000", 4 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] close(28 [pid 5051] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5496] <... write resumed>) = 4 [pid 5495] close(11 [pid 5494] close(12 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5496] close(3 [pid 5051] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5496] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5050] newfstatat(AT_FDCWD, "./68/file0", [pid 5496] symlink("/dev/binderfs", "./binderfs" [pid 5051] newfstatat(3, "", [pid 5496] <... symlink resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] unlink("./73/binderfs" [pid 5050] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5496] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] <... unlink resumed>) = 0 [pid 5051] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5496] <... socket resumed>) = 3 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] close(29 [pid 5051] <... umount2 resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5495] close(12 [pid 5494] close(13 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5495] close(13 [pid 5494] close(14 [pid 5493] exit_group(0 [pid 5051] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... openat resumed>) = 4 [pid 5496] <... socket resumed>) = 4 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5496] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5495] close(14 [pid 5494] close(15 [pid 5051] newfstatat(AT_FDCWD, "./73/file0", [pid 5050] newfstatat(4, "", [pid 5496] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5496] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5495] close(15 [pid 5494] close(16 [pid 5493] <... exit_group resumed>) = ? [pid 5496] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(4, [pid 5496] memfd_create("syzkaller", 0 [pid 5495] close(16 [pid 5494] close(17 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5496] <... memfd_create resumed>) = 5 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(17) = -1 EBADF (Bad file descriptor) [pid 5494] close(18 [pid 5495] close(18) = -1 EBADF (Bad file descriptor) [pid 5495] close(19 [pid 5496] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] getdents64(4, [pid 5495] close(20 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(21) = -1 EBADF (Bad file descriptor) [pid 5495] close(22 [pid 5494] close(19 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] <... mmap resumed>) = 0x7f1263f98000 [pid 5495] close(23 [pid 5051] newfstatat(4, "", [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5496] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] close(4 [pid 5496] mkdir("./file0", 000 [pid 5495] close(24 [pid 5051] getdents64(4, [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(25) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(26) = -1 EBADF (Bad file descriptor) [pid 5496] <... mkdir resumed>) = 0 [pid 5495] close(27 [pid 5493] +++ exited with 0 +++ [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... close resumed>) = 0 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5495] close(28 [pid 5051] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] close(4 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./68/file0" [pid 5495] close(29 [pid 5053] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] rmdir("./73/file0") = 0 [pid 5050] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5495] exit_group(0 [pid 5050] close(3) = 0 [pid 5496] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5051] getdents64(3, [pid 5050] rmdir("./68" [pid 5496] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5496] <... mount resumed>) = 0 [pid 5051] close(3) = 0 [pid 5051] rmdir("./73") = 0 [pid 5496] open(NULL, O_RDONLY [pid 5050] mkdir("./69", 0777 [pid 5496] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] <... mkdir resumed>) = 0 [pid 5496] close(3) = 0 [pid 5053] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] mkdir("./74", 0777 [pid 5496] close(4 [pid 5051] <... mkdir resumed>) = 0 [pid 5496] <... close resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5496] close(5 [pid 5050] <... openat resumed>) = 3 [pid 5053] <... openat resumed>) = 3 [pid 5495] <... exit_group resumed>) = ? [pid 5494] close(20 [pid 5496] <... close resumed>) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5496] close(6 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(7 [pid 5051] <... openat resumed>) = 3 [pid 5050] close(3 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5496] close(8 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5494] close(21 [pid 5495] +++ exited with 0 +++ [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5496] close(9) = -1 EBADF (Bad file descriptor) [pid 5494] close(22 [pid 5053] getdents64(3, [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5496] close(10 [pid 5494] close(23 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] close(3 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5494] close(24) = -1 EBADF (Bad file descriptor) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] close(25 [pid 5053] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5496] close(11 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5494] close(26 [pid 5053] newfstatat(AT_FDCWD, "./70/binderfs", [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] close(27 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(12 [pid 5494] close(28 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 71 [pid 5049] <... openat resumed>) = 3 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5496] close(13 [pid 5494] close(29 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] exit_group(0./strace-static-x86_64: Process 5497 attached [pid 5496] close(14 [pid 5494] <... exit_group resumed>) = ? [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(15) = -1 EBADF (Bad file descriptor) [pid 5497] set_robust_list(0x5555566e0760, 24 [pid 5496] close(16 [pid 5497] <... set_robust_list resumed>) = 0 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] chdir("./69" [pid 5496] close(17 [pid 5497] <... chdir resumed>) = 0 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5496] close(18 [pid 5497] <... prctl resumed>) = 0 [pid 5497] setpgid(0, 0 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] <... setpgid resumed>) = 0 [pid 5496] close(19 [pid 5497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] <... openat resumed>) = 3 [pid 5496] close(20 [pid 5494] +++ exited with 0 +++ [pid 5049] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(21 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(22 [pid 5053] unlink("./70/binderfs" [pid 5049] newfstatat(AT_FDCWD, "./70/binderfs", [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] write(3, "1000", 4 [pid 5496] close(23 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5497] <... write resumed>) = 4 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5048] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] close(3 [pid 5496] close(24 [pid 5497] <... close resumed>) = 0 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./70/binderfs" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] symlink("/dev/binderfs", "./binderfs" [pid 5496] close(25./strace-static-x86_64: Process 5498 attached [pid 5497] <... symlink resumed>) = 0 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 76 [pid 5049] <... unlink resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5498] set_robust_list(0x5555566e0760, 24 [pid 5497] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5496] close(26 [pid 5498] <... set_robust_list resumed>) = 0 [pid 5497] <... socket resumed>) = 3 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5498] chdir("./74" [pid 5497] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5496] close(27 [pid 5053] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(3, "", [pid 5498] <... chdir resumed>) = 0 [pid 5497] <... socket resumed>) = 4 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5497] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5496] close(28 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5498] <... prctl resumed>) = 0 [pid 5497] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./70/file0", [pid 5498] setpgid(0, 0 [pid 5497] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5496] close(29 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] getdents64(3, [pid 5498] <... setpgid resumed>) = 0 [pid 5497] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5497] memfd_create("syzkaller", 0 [pid 5496] exit_group(0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5498] <... openat resumed>) = 3 [pid 5496] <... exit_group resumed>) = ? [pid 5048] newfstatat(AT_FDCWD, "./68/binderfs", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5498] write(3, "1000", 4 [pid 5497] <... memfd_create resumed>) = 5 [pid 5049] newfstatat(AT_FDCWD, "./70/file0", [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] unlink("./68/binderfs" [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5496] +++ exited with 0 +++ [pid 5049] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... unlink resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5498] <... write resumed>) = 4 [pid 5053] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5049] <... openat resumed>) = 4 [pid 5498] close(3 [pid 5053] <... openat resumed>) = 4 [pid 5052] newfstatat(3, "", [pid 5049] newfstatat(4, "", [pid 5498] <... close resumed>) = 0 [pid 5053] newfstatat(4, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5052] getdents64(3, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5498] symlink("/dev/binderfs", "./binderfs" [pid 5497] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] getdents64(4, [pid 5049] getdents64(4, [pid 5048] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5498] <... symlink resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5498] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5497] mkdir("./file0", 000 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] newfstatat(AT_FDCWD, "./76/binderfs", [pid 5049] getdents64(4, [pid 5048] newfstatat(AT_FDCWD, "./68/file0", [pid 5498] <... socket resumed>) = 3 [pid 5497] <... mkdir resumed>) = 0 [pid 5053] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5497] symlink(NULL, NULL [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] unlink("./76/binderfs" [pid 5498] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5497] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] close(4 [pid 5052] <... unlink resumed>) = 0 [pid 5049] close(4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5497] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5498] <... socket resumed>) = 4 [pid 5497] <... mount resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./70/file0" [pid 5049] rmdir("./70/file0" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./76/file0", [pid 5497] open(NULL, O_RDONLY [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5497] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5497] close(3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... close resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5497] close(4 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5497] <... close resumed>) = 0 [pid 5053] getdents64(3, [pid 5049] close(3 [pid 5048] newfstatat(4, "", [pid 5497] close(5 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5049] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5497] <... close resumed>) = 0 [pid 5049] rmdir("./70" [pid 5498] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] getdents64(4, [pid 5497] close(6) = -1 EBADF (Bad file descriptor) [pid 5497] close(7) = -1 EBADF (Bad file descriptor) [pid 5497] close(8) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5497] close(9) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5498] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5497] close(10 [pid 5053] close(3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5497] close(11 [pid 5052] getdents64(4, [pid 5048] getdents64(4, [pid 5498] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] mkdir("./71", 0777 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5498] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5497] close(12 [pid 5053] rmdir("./70" [pid 5048] close(4 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5497] close(13 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5048] rmdir("./68/file0" [pid 5497] close(14 [pid 5052] <... close resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] close(15 [pid 5052] rmdir("./76/file0" [pid 5498] memfd_create("syzkaller", 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5497] close(16) = -1 EBADF (Bad file descriptor) [pid 5497] close(17) = -1 EBADF (Bad file descriptor) [pid 5497] close(18) = -1 EBADF (Bad file descriptor) [pid 5497] close(19) = -1 EBADF (Bad file descriptor) [pid 5497] close(20 [pid 5052] getdents64(3, [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5497] close(21) = -1 EBADF (Bad file descriptor) [pid 5497] close(22 [pid 5052] close(3 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5497] close(23 [pid 5048] getdents64(3, [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] close(24 [pid 5052] rmdir("./76" [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5498] <... memfd_create resumed>) = 5 [pid 5497] close(25) = -1 EBADF (Bad file descriptor) [pid 5497] close(26) = -1 EBADF (Bad file descriptor) [pid 5497] close(27) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5497] close(28) = -1 EBADF (Bad file descriptor) [pid 5497] close(29) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./77", 0777 [pid 5498] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5497] exit_group(0 [pid 5053] mkdir("./71", 0777 [pid 5052] <... mkdir resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5498] <... mmap resumed>) = 0x7f1263f98000 [pid 5048] close(3 [pid 5497] <... exit_group resumed>) = ? [pid 5498] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... close resumed>) = 0 [pid 5498] mkdir("./file0", 000 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5048] rmdir("./68" [pid 5053] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] <... openat resumed>) = 3 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5498] <... mkdir resumed>) = 0 [pid 5052] close(3 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... rmdir resumed>) = 0 [pid 5498] symlink(NULL, NULL [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5498] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] <... openat resumed>) = 3 [pid 5052] <... close resumed>) = 0 [pid 5049] close(3 [pid 5048] mkdir("./69", 0777 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... close resumed>) = 0 [pid 5498] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] close(3 [pid 5048] <... mkdir resumed>) = 0 [pid 5497] +++ exited with 0 +++ [pid 5053] <... close resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5498] <... mount resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5050] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5050] newfstatat(3, "", [pid 5048] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5498] open(NULL, O_RDONLY [pid 5050] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5050] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5499 attached [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 79 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] set_robust_list(0x5555566e0760, 24 [pid 5050] newfstatat(AT_FDCWD, "./69/binderfs", [pid 5499] <... set_robust_list resumed>) = 0 [pid 5498] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5501 attached [pid 5499] chdir("./77" [pid 5498] close(3 [pid 5050] unlink("./69/binderfs" [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5500 attached [pid 5501] set_robust_list(0x5555566e0760, 24 [pid 5498] <... close resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 73 [pid 5050] <... unlink resumed>) = 0 [pid 5048] close(3 [pid 5501] <... set_robust_list resumed>) = 0 [pid 5500] set_robust_list(0x5555566e0760, 24 [pid 5499] <... chdir resumed>) = 0 [pid 5498] close(4 [pid 5050] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 73 [pid 5501] chdir("./71" [pid 5500] <... set_robust_list resumed>) = 0 [pid 5499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5498] <... close resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5050] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5500] chdir("./71" [pid 5499] <... prctl resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5501] <... chdir resumed>) = 0 [pid 5499] setpgid(0, 0 [pid 5501] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] newfstatat(AT_FDCWD, "./69/file0", [pid 5501] <... prctl resumed>) = 0 [pid 5499] <... setpgid resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5501] setpgid(0, 0 [pid 5499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5501] <... setpgid resumed>) = 0 [pid 5498] close(5 [pid 5501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5500] <... chdir resumed>) = 0 [pid 5499] <... openat resumed>) = 3 [pid 5498] <... close resumed>) = 0 [pid 5050] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5500] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5498] close(6 [pid 5500] <... prctl resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... openat resumed>) = 3 [pid 5500] setpgid(0, 0 [pid 5498] close(7 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5500] <... setpgid resumed>) = 0 [pid 5499] write(3, "1000", 4 [pid 5501] write(3, "1000", 4 [pid 5499] <... write resumed>) = 4 [pid 5050] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5502 attached [pid 5501] <... write resumed>) = 4 [pid 5499] close(3 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 71 [pid 5502] set_robust_list(0x5555566e0760, 24 [pid 5501] close(3 [pid 5498] close(8 [pid 5502] <... set_robust_list resumed>) = 0 [pid 5502] chdir("./69" [pid 5501] <... close resumed>) = 0 [pid 5500] <... openat resumed>) = 3 [pid 5499] <... close resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(4, "", [pid 5501] symlink("/dev/binderfs", "./binderfs" [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5501] <... symlink resumed>) = 0 [pid 5500] write(3, "1000", 4 [pid 5499] symlink("/dev/binderfs", "./binderfs" [pid 5502] <... chdir resumed>) = 0 [pid 5498] close(9 [pid 5502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5501] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5500] <... write resumed>) = 4 [pid 5499] <... symlink resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5502] <... prctl resumed>) = 0 [pid 5500] close(3 [pid 5498] close(10 [pid 5502] setpgid(0, 0) = 0 [pid 5501] <... socket resumed>) = 3 [pid 5500] <... close resumed>) = 0 [pid 5499] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5500] symlink("/dev/binderfs", "./binderfs" [pid 5498] close(11) = -1 EBADF (Bad file descriptor) [pid 5498] close(12 [pid 5501] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5500] <... symlink resumed>) = 0 [pid 5499] <... socket resumed>) = 3 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5501] <... socket resumed>) = 4 [pid 5500] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5498] close(13 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5501] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5499] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5501] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5500] <... socket resumed>) = 3 [pid 5499] <... socket resumed>) = 4 [pid 5498] close(14 [pid 5050] <... close resumed>) = 0 [pid 5501] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5050] rmdir("./69/file0" [pid 5502] <... openat resumed>) = 3 [pid 5501] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5500] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] write(3, "1000", 4 [pid 5501] memfd_create("syzkaller", 0 [pid 5499] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5502] <... write resumed>) = 4 [pid 5500] <... socket resumed>) = 4 [pid 5498] close(15 [pid 5502] close(3 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... memfd_create resumed>) = 5 [pid 5499] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] getdents64(3, [pid 5502] <... close resumed>) = 0 [pid 5501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5500] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5499] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5498] close(16 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5502] symlink("/dev/binderfs", "./binderfs" [pid 5501] <... mmap resumed>) = 0x7f1263f98000 [pid 5500] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5499] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5502] <... symlink resumed>) = 0 [pid 5501] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5500] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5499] memfd_create("syzkaller", 0 [pid 5498] close(17 [pid 5050] <... close resumed>) = 0 [pid 5500] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5501] mkdir("./file0", 000 [pid 5500] memfd_create("syzkaller", 0 [pid 5499] <... memfd_create resumed>) = 5 [pid 5498] close(18 [pid 5050] rmdir("./69" [pid 5502] <... socket resumed>) = 3 [pid 5501] <... mkdir resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5502] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5500] <... memfd_create resumed>) = 5 [pid 5498] close(19 [pid 5499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5502] <... socket resumed>) = 4 [pid 5501] symlink(NULL, NULL [pid 5499] <... mmap resumed>) = 0x7f1263f98000 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5501] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5500] <... mmap resumed>) = 0x7f1263f98000 [pid 5499] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5498] close(20 [pid 5050] mkdir("./70", 0777 [pid 5502] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5500] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5499] mkdir("./file0", 000 [pid 5502] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5501] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5500] mkdir("./file0", 000 [pid 5499] <... mkdir resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... mkdir resumed>) = 0 [pid 5501] <... mount resumed>) = 0 [pid 5502] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5498] close(21) = -1 EBADF (Bad file descriptor) [pid 5502] memfd_create("syzkaller", 0 [pid 5500] <... mkdir resumed>) = 0 [pid 5498] close(22 [pid 5501] open(NULL, O_RDONLY [pid 5499] symlink(NULL, NULL [pid 5501] <... open resumed>) = -1 EFAULT (Bad address) [pid 5500] symlink(NULL, NULL [pid 5499] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... memfd_create resumed>) = 5 [pid 5501] close(3 [pid 5500] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5499] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5498] close(23 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5501] <... close resumed>) = 0 [pid 5499] <... mount resumed>) = 0 [pid 5501] close(4 [pid 5050] <... openat resumed>) = 3 [pid 5501] <... close resumed>) = 0 [pid 5501] close(5 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5501] <... close resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5499] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5499] close(3 [pid 5502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5500] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5499] <... close resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5501] close(6 [pid 5499] close(4 [pid 5498] close(24 [pid 5050] <... close resumed>) = 0 [pid 5500] <... mount resumed>) = 0 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] <... close resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5502] <... mmap resumed>) = 0x7f1263f98000 [pid 5500] open(NULL, O_RDONLY [pid 5498] close(25 [pid 5502] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5500] <... open resumed>) = -1 EFAULT (Bad address) [pid 5500] close(3 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] mkdir("./file0", 000 [pid 5498] close(26 [pid 5501] close(7 [pid 5500] <... close resumed>) = 0 [pid 5499] close(5 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... mkdir resumed>) = 0 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(4 [pid 5499] <... close resumed>) = 0 [pid 5498] close(27 [pid 5501] close(8 [pid 5499] close(6 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] symlink(NULL, NULL [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] <... close resumed>) = 0 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] close(28 [pid 5502] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5501] close(9 [pid 5500] close(5 [pid 5499] close(7 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5503 attached [pid 5502] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] <... close resumed>) = 0 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] set_robust_list(0x5555566e0760, 24 [pid 5501] close(10 [pid 5499] close(8 [pid 5498] close(29 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 72 [pid 5503] <... set_robust_list resumed>) = 0 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(6 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] chdir("./70" [pid 5502] <... mount resumed>) = 0 [pid 5501] close(11 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(9 [pid 5498] exit_group(0 [pid 5502] open(NULL, O_RDONLY [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(7 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... exit_group resumed>) = ? [pid 5503] <... chdir resumed>) = 0 [pid 5502] <... open resumed>) = -1 EFAULT (Bad address) [pid 5501] close(12 [pid 5499] close(10 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5502] close(3 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(8 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] <... prctl resumed>) = 0 [pid 5501] close(13 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(11 [pid 5503] setpgid(0, 0 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] <... setpgid resumed>) = 0 [pid 5501] close(14 [pid 5500] close(9 [pid 5499] close(12 [pid 5503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5502] <... close resumed>) = 0 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(15 [pid 5499] close(13 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] close(4 [pid 5503] <... openat resumed>) = 3 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(10 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] +++ exited with 0 +++ [pid 5503] write(3, "1000", 4 [pid 5502] <... close resumed>) = 0 [pid 5501] close(16 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(14 [pid 5503] <... write resumed>) = 4 [pid 5502] close(5 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(11 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = 0 [pid 5501] close(17 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5503] close(3 [pid 5502] close(6 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(12 [pid 5499] close(15 [pid 5051] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] <... close resumed>) = 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(18 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5503] symlink("/dev/binderfs", "./binderfs" [pid 5502] close(7 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(13 [pid 5499] close(16 [pid 5051] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5503] <... symlink resumed>) = 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(19 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(17 [pid 5503] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5502] close(8 [pid 5501] close(20 [pid 5500] close(14 [pid 5051] <... openat resumed>) = 3 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(15 [pid 5051] newfstatat(3, "", [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] close(9 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] close(10) = -1 EBADF (Bad file descriptor) [pid 5500] close(16 [pid 5502] close(11 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5500] close(17 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] close(12 [pid 5501] close(21 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(18 [pid 5502] close(13 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(19 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5502] close(14 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(20 [pid 5051] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5502] close(15 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5500] close(21 [pid 5502] close(16 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./74/binderfs", [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(22 [pid 5503] <... socket resumed>) = 3 [pid 5502] close(17 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(23 [pid 5051] unlink("./74/binderfs" [pid 5502] close(18 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] close(19) = -1 EBADF (Bad file descriptor) [pid 5502] close(20 [pid 5503] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(22 [pid 5499] close(18 [pid 5503] <... socket resumed>) = 4 [pid 5502] close(21 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(24 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(23 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(19 [pid 5502] close(22 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(25 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(24 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(20 [pid 5503] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5502] close(23 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(26 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(25 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(21 [pid 5051] <... umount2 resumed>) = 0 [pid 5503] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5502] close(24 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(27 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] memfd_create("syzkaller", 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(26 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(22 [pid 5051] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] <... memfd_create resumed>) = 5 [pid 5502] close(25 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(28 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(27 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(23 [pid 5051] newfstatat(AT_FDCWD, "./74/file0", [pid 5503] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5502] close(26 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] close(29 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5503] <... mmap resumed>) = 0x7f1263f98000 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(28 [pid 5500] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(24 [pid 5503] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] mkdir("./file0", 000 [pid 5501] close(29 [pid 5499] close(25 [pid 5502] close(27 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5500] exit_group(0 [pid 5501] exit_group(0 [pid 5499] close(26 [pid 5503] <... mkdir resumed>) = 0 [pid 5501] <... exit_group resumed>) = ? [pid 5500] <... exit_group resumed>) = ? [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] close(27) = -1 EBADF (Bad file descriptor) [pid 5499] close(28) = -1 EBADF (Bad file descriptor) [pid 5503] symlink(NULL, NULL [pid 5499] close(29 [pid 5503] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5503] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] <... mount resumed>) = 0 [pid 5499] exit_group(0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] +++ exited with 0 +++ [pid 5500] +++ exited with 0 +++ [pid 5051] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] <... exit_group resumed>) = ? [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5502] close(28 [pid 5051] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5503] open(NULL, O_RDONLY [pid 5049] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5503] <... open resumed>) = -1 EFAULT (Bad address) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5049] <... openat resumed>) = 3 [pid 5502] close(29 [pid 5503] close(3 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5503] <... close resumed>) = 0 [pid 5503] close(4) = 0 [pid 5502] exit_group(0 [pid 5503] close(5 [pid 5502] <... exit_group resumed>) = ? [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5503] <... close resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5049] getdents64(3, [pid 5503] close(6 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] +++ exited with 0 +++ [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] close(7 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./71/binderfs", [pid 5503] close(8 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] close(9 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] unlink("./71/binderfs" [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5503] close(10 [pid 5053] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] <... openat resumed>) = 3 [pid 5051] getdents64(4, [pid 5049] <... unlink resumed>) = 0 [pid 5502] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] newfstatat(3, "", [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(4, [pid 5053] newfstatat(3, "", [pid 5052] getdents64(3, [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(4 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5048] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] close(11 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./77/binderfs", [pid 5051] rmdir("./74/file0" [pid 5049] <... umount2 resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./71/binderfs", [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5503] close(12 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] unlink("./77/binderfs" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./71/binderfs" [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./71/file0", [pid 5503] close(13 [pid 5053] <... unlink resumed>) = 0 [pid 5052] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(3, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(3, "", [pid 5503] close(14 [pid 5052] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] close(3 [pid 5049] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5503] close(15 [pid 5052] newfstatat(AT_FDCWD, "./77/file0", [pid 5051] <... close resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] rmdir("./74" [pid 5049] <... openat resumed>) = 4 [pid 5048] getdents64(3, [pid 5053] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(4, "", [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./71/file0", [pid 5048] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5503] close(16 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, [pid 5048] newfstatat(AT_FDCWD, "./69/binderfs", [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5503] close(17 [pid 5053] <... openat resumed>) = 4 [pid 5052] <... openat resumed>) = 4 [pid 5051] mkdir("./75", 0777 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5052] newfstatat(4, "", [pid 5049] getdents64(4, [pid 5048] unlink("./69/binderfs" [pid 5503] close(18 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] getdents64(4, [pid 5049] close(4 [pid 5503] close(19 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... close resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5503] close(20 [pid 5053] getdents64(4, [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5049] rmdir("./71/file0" [pid 5048] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5503] close(21 [pid 5053] close(4 [pid 5052] <... close resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(22 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5048] <... umount2 resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5052] rmdir("./77/file0" [pid 5049] <... rmdir resumed>) = 0 [pid 5048] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] close(23 [pid 5053] rmdir("./71/file0" [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] getdents64(3, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./69/file0", [pid 5503] close(24 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5048] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] close(25 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... close resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5503] close(26 [pid 5052] getdents64(3, [pid 5049] rmdir("./71" [pid 5048] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5503] close(27 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] close(3 [pid 5048] <... openat resumed>) = 4 [pid 5048] newfstatat(4, "", [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5052] <... close resumed>) = 0 [pid 5503] close(28 [pid 5053] <... close resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./77" [pid 5503] close(29 [pid 5053] rmdir("./71" [pid 5049] mkdir("./72", 0777 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5503] exit_group(0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5503] <... exit_group resumed>) = ? [pid 5053] mkdir("./72", 0777 [pid 5052] mkdir("./78", 0777 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5503] +++ exited with 0 +++ [pid 5049] <... openat resumed>) = 3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5049] close(3) = 0 ./strace-static-x86_64: Process 5504 attached [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] close(4 [pid 5504] set_robust_list(0x5555566e0760, 24 [pid 5053] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5048] <... close resumed>) = 0 [pid 5504] <... set_robust_list resumed>) = 0 [pid 5504] chdir("./75" [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 77 [pid 5050] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] rmdir("./69/file0" [pid 5504] <... chdir resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... rmdir resumed>) = 0 [pid 5504] <... prctl resumed>) = 0 [pid 5053] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... openat resumed>) = 3 [pid 5048] getdents64(3, [pid 5504] setpgid(0, 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(3, "", [pid 5504] <... setpgid resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5505 attached [pid 5504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... close resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 74 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5505] set_robust_list(0x5555566e0760, 24 [pid 5050] getdents64(3, [pid 5048] close(3 [pid 5505] <... set_robust_list resumed>) = 0 [pid 5504] <... openat resumed>) = 3 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... close resumed>) = 0 [pid 5505] chdir("./72" [pid 5048] rmdir("./69" [pid 5504] write(3, "1000", 4 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5505] <... chdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5505] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5504] <... write resumed>) = 4 [pid 5050] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5504] close(3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] mkdir("./70", 0777 [pid 5505] <... prctl resumed>) = 0 [pid 5504] <... close resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./70/binderfs", [pid 5048] <... mkdir resumed>) = 0 [pid 5505] setpgid(0, 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 74 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5505] <... setpgid resumed>) = 0 [pid 5050] unlink("./70/binderfs"./strace-static-x86_64: Process 5506 attached [pid 5505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5504] symlink("/dev/binderfs", "./binderfs" [pid 5050] <... unlink resumed>) = 0 [pid 5506] set_robust_list(0x5555566e0760, 24 [pid 5504] <... symlink resumed>) = 0 [pid 5050] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5506] <... set_robust_list resumed>) = 0 [pid 5504] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5506] chdir("./72" [pid 5505] <... openat resumed>) = 3 [pid 5504] <... socket resumed>) = 3 [pid 5050] <... umount2 resumed>) = 0 [pid 5048] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5507 attached [pid 5505] write(3, "1000", 4 [pid 5504] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 80 [pid 5050] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5506] <... chdir resumed>) = 0 [pid 5504] <... socket resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5506] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5504] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5506] <... prctl resumed>) = 0 [pid 5505] <... write resumed>) = 4 [pid 5504] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5507] set_robust_list(0x5555566e0760, 24 [pid 5050] newfstatat(AT_FDCWD, "./70/file0", [pid 5048] close(3 [pid 5507] <... set_robust_list resumed>) = 0 [pid 5506] setpgid(0, 0 [pid 5505] close(3 [pid 5504] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5507] chdir("./78" [pid 5506] <... setpgid resumed>) = 0 [pid 5505] <... close resumed>) = 0 [pid 5504] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... close resumed>) = 0 [pid 5506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5505] symlink("/dev/binderfs", "./binderfs" [pid 5504] memfd_create("syzkaller", 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5507] <... chdir resumed>) = 0 [pid 5050] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5506] <... openat resumed>) = 3 [pid 5505] <... symlink resumed>) = 0 [pid 5504] <... memfd_create resumed>) = 5 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5504] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5504] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] <... openat resumed>) = 4 [pid 5504] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5050] newfstatat(4, "", [pid 5504] mkdir("./file0", 000) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5506] write(3, "1000", 4) = 4 [pid 5504] symlink(NULL, NULL [pid 5050] getdents64(4, [pid 5506] close(3 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5506] <... close resumed>) = 0 [pid 5504] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5050] close(4./strace-static-x86_64: Process 5508 attached [pid 5506] symlink("/dev/binderfs", "./binderfs" [pid 5504] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] <... close resumed>) = 0 [pid 5508] set_robust_list(0x5555566e0760, 24 [pid 5507] <... prctl resumed>) = 0 [pid 5506] <... symlink resumed>) = 0 [pid 5505] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5504] <... mount resumed>) = 0 [pid 5050] rmdir("./70/file0" [pid 5508] <... set_robust_list resumed>) = 0 [pid 5507] setpgid(0, 0 [pid 5506] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5505] <... socket resumed>) = 3 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 72 [pid 5508] chdir("./70" [pid 5507] <... setpgid resumed>) = 0 [pid 5506] <... socket resumed>) = 3 [pid 5505] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5508] <... chdir resumed>) = 0 [pid 5504] open(NULL, O_RDONLY [pid 5507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5506] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5505] <... socket resumed>) = 4 [pid 5504] <... open resumed>) = -1 EFAULT (Bad address) [pid 5508] <... prctl resumed>) = 0 [pid 5507] <... openat resumed>) = 3 [pid 5506] <... socket resumed>) = 4 [pid 5505] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5504] close(3 [pid 5050] getdents64(3, [pid 5508] setpgid(0, 0 [pid 5507] write(3, "1000", 4 [pid 5506] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5505] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5504] <... close resumed>) = 0 [pid 5508] <... setpgid resumed>) = 0 [pid 5507] <... write resumed>) = 4 [pid 5506] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5505] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5504] close(4 [pid 5508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5507] close(3 [pid 5506] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5505] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5507] <... close resumed>) = 0 [pid 5506] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5504] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5507] symlink("/dev/binderfs", "./binderfs" [pid 5506] memfd_create("syzkaller", 0 [pid 5505] memfd_create("syzkaller", 0 [pid 5050] close(3 [pid 5508] <... openat resumed>) = 3 [pid 5506] <... memfd_create resumed>) = 5 [pid 5504] close(5 [pid 5505] <... memfd_create resumed>) = 5 [pid 5050] <... close resumed>) = 0 [pid 5508] write(3, "1000", 4 [pid 5507] <... symlink resumed>) = 0 [pid 5506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5504] <... close resumed>) = 0 [pid 5508] <... write resumed>) = 4 [pid 5506] <... mmap resumed>) = 0x7f1263f98000 [pid 5505] <... mmap resumed>) = 0x7f1263f98000 [pid 5504] close(6 [pid 5050] rmdir("./70" [pid 5508] close(3 [pid 5507] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5506] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5505] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5508] <... close resumed>) = 0 [pid 5505] mkdir("./file0", 000 [pid 5504] close(7 [pid 5508] symlink("/dev/binderfs", "./binderfs" [pid 5506] mkdir("./file0", 000 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... socket resumed>) = 3 [pid 5506] <... mkdir resumed>) = 0 [pid 5505] <... mkdir resumed>) = 0 [pid 5504] close(8 [pid 5508] <... symlink resumed>) = 0 [pid 5507] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... socket resumed>) = 4 [pid 5504] close(9 [pid 5508] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5506] symlink(NULL, NULL [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] mkdir("./71", 0777 [pid 5504] close(10 [pid 5507] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5506] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5505] symlink(NULL, NULL [pid 5507] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5505] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5504] close(11 [pid 5508] <... socket resumed>) = 3 [pid 5507] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5505] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5506] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5504] close(12 [pid 5050] <... mkdir resumed>) = 0 [pid 5508] <... socket resumed>) = 4 [pid 5506] <... mount resumed>) = 0 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] memfd_create("syzkaller", 0 [pid 5504] close(13) = -1 EBADF (Bad file descriptor) [pid 5504] close(14) = -1 EBADF (Bad file descriptor) [pid 5508] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5506] open(NULL, O_RDONLY [pid 5505] <... mount resumed>) = 0 [pid 5504] close(15 [pid 5508] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5507] <... memfd_create resumed>) = 5 [pid 5506] <... open resumed>) = -1 EFAULT (Bad address) [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5508] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5507] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5506] close(3 [pid 5504] close(16 [pid 5507] <... mmap resumed>) = 0x7f1263f98000 [pid 5506] <... close resumed>) = 0 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5508] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5507] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5505] open(NULL, O_RDONLY [pid 5504] close(17 [pid 5508] memfd_create("syzkaller", 0 [pid 5507] mkdir("./file0", 000 [pid 5506] close(4 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5506] <... close resumed>) = 0 [pid 5504] close(18 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5508] <... memfd_create resumed>) = 5 [pid 5507] <... mkdir resumed>) = 0 [pid 5506] close(5 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(3 [pid 5050] close(3 [pid 5508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5506] <... close resumed>) = 0 [pid 5504] close(19 [pid 5050] <... close resumed>) = 0 [pid 5508] <... mmap resumed>) = 0x7f1263f98000 [pid 5506] close(6 [pid 5505] <... close resumed>) = 0 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(20 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5508] mkdir("./file0", 000 [pid 5507] symlink(NULL, NULL [pid 5506] close(7 [pid 5505] close(4 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = 0 [pid 5504] close(21 [pid 5507] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5504] close(22./strace-static-x86_64: Process 5509 attached [pid 5508] <... mkdir resumed>) = 0 [pid 5507] <... mount resumed>) = 0 [pid 5506] close(8 [pid 5505] close(5 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] set_robust_list(0x5555566e0760, 24 [pid 5508] symlink(NULL, NULL [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(23 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 73 [pid 5509] <... set_robust_list resumed>) = 0 [pid 5508] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5506] close(9 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] chdir("./71" [pid 5508] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5507] open(NULL, O_RDONLY [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = 0 [pid 5504] close(24 [pid 5508] <... mount resumed>) = 0 [pid 5507] <... open resumed>) = -1 EFAULT (Bad address) [pid 5506] close(10 [pid 5505] close(6 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] <... chdir resumed>) = 0 [pid 5507] close(3 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(25 [pid 5509] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5506] close(11 [pid 5505] close(7 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] <... prctl resumed>) = 0 [pid 5508] open(NULL, O_RDONLY [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(26 [pid 5509] setpgid(0, 0 [pid 5508] <... open resumed>) = -1 EFAULT (Bad address) [pid 5506] close(12 [pid 5505] close(8 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] <... setpgid resumed>) = 0 [pid 5508] close(3 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(27 [pid 5509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5508] <... close resumed>) = 0 [pid 5506] close(13 [pid 5505] close(9 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(28 [pid 5508] close(4 [pid 5507] <... close resumed>) = 0 [pid 5506] close(14 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(10 [pid 5504] close(29 [pid 5509] <... openat resumed>) = 3 [pid 5507] close(4 [pid 5508] close(5 [pid 5506] close(15 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = 0 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(11 [pid 5504] exit_group(0 [pid 5509] write(3, "1000", 4 [pid 5507] close(5 [pid 5509] <... write resumed>) = 4 [pid 5508] close(6 [pid 5506] close(16 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] <... exit_group resumed>) = ? [pid 5509] close(3 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(12 [pid 5508] close(7 [pid 5506] close(17 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] <... close resumed>) = 0 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(6 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] +++ exited with 0 +++ [pid 5508] close(8 [pid 5506] close(18 [pid 5505] close(13 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] close(9 [pid 5506] close(19 [pid 5509] symlink("/dev/binderfs", "./binderfs" [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5508] close(10 [pid 5506] close(20 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] close(11 [pid 5506] close(21 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] close(12 [pid 5506] close(22 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] close(13 [pid 5507] close(7 [pid 5506] close(23 [pid 5505] close(14 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] <... symlink resumed>) = 0 [pid 5508] close(14 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] close(24 [pid 5505] close(15 [pid 5509] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(8 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] <... socket resumed>) = 3 [pid 5508] close(15 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] close(25 [pid 5505] close(16 [pid 5051] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(9 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5508] close(16 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] close(26 [pid 5505] close(17 [pid 5051] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(10 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] close(17) = -1 EBADF (Bad file descriptor) [pid 5506] close(27 [pid 5051] <... openat resumed>) = 3 [pid 5505] close(18 [pid 5508] close(18 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(3, "", [pid 5509] <... socket resumed>) = 4 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(11 [pid 5506] close(28 [pid 5505] close(19 [pid 5509] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5509] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5508] close(19 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5509] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(12 [pid 5506] close(29 [pid 5505] close(20 [pid 5509] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5508] close(20 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(13 [pid 5506] exit_group(0 [pid 5505] close(21 [pid 5508] close(21 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(14 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(22 [pid 5051] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5508] close(22 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... exit_group resumed>) = ? [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] memfd_create("syzkaller", 0 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(15 [pid 5506] +++ exited with 0 +++ [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5508] close(23 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] close(24) = -1 EBADF (Bad file descriptor) [pid 5508] close(25 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(23 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(16 [pid 5051] newfstatat(AT_FDCWD, "./75/binderfs", [pid 5509] <... memfd_create resumed>) = 5 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(17 [pid 5508] close(26) = -1 EBADF (Bad file descriptor) [pid 5508] close(27 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(24 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(18 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5508] close(28 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(25 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(19 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./75/binderfs" [pid 5508] close(29 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(26 [pid 5053] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(20 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5508] exit_group(0 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(27 [pid 5053] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5507] close(21 [pid 5051] <... unlink resumed>) = 0 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... exit_group resumed>) = ? [pid 5505] close(28 [pid 5507] close(22 [pid 5053] <... openat resumed>) = 3 [pid 5508] +++ exited with 0 +++ [pid 5053] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5053] getdents64(3, [pid 5048] <... restart_syscall resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5053] newfstatat(AT_FDCWD, "./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(3, "", [pid 5053] unlink("./72/binderfs" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5048] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] <... mmap resumed>) = 0x7f1263f98000 [pid 5505] close(29 [pid 5507] close(23 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./70/binderfs", [pid 5509] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5505] exit_group(0 [pid 5053] newfstatat(AT_FDCWD, "./72/file0", [pid 5048] unlink("./70/binderfs" [pid 5509] mkdir("./file0", 000 [pid 5507] close(24 [pid 5505] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... unlink resumed>) = 0 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] close(25 [pid 5051] newfstatat(AT_FDCWD, "./75/file0", [pid 5053] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5053] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5509] <... mkdir resumed>) = 0 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] +++ exited with 0 +++ [pid 5053] getdents64(4, [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5507] close(26 [pid 5051] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] symlink(NULL, NULL [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5507] close(27 [pid 5509] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5507] close(28 [pid 5053] getdents64(4, [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5507] close(29 [pid 5053] close(4 [pid 5509] <... mount resumed>) = 0 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... umount2 resumed>) = 0 [pid 5509] open(NULL, O_RDONLY [pid 5053] rmdir("./72/file0" [pid 5509] <... open resumed>) = -1 EFAULT (Bad address) [pid 5507] exit_group(0 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] close(3 [pid 5507] <... exit_group resumed>) = ? [pid 5053] getdents64(3, [pid 5048] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] <... close resumed>) = 0 [pid 5051] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] newfstatat(AT_FDCWD, "./70/file0", [pid 5053] close(3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... close resumed>) = 0 [pid 5048] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] rmdir("./72" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... rmdir resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5048] newfstatat(4, "", [pid 5509] close(4 [pid 5507] +++ exited with 0 +++ [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5509] <... close resumed>) = 0 [pid 5051] getdents64(4, [pid 5509] close(5 [pid 5049] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5509] <... close resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] close(4 [pid 5049] <... openat resumed>) = 3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5509] close(6 [pid 5053] mkdir("./73", 0777 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] <... close resumed>) = 0 [pid 5049] newfstatat(3, "", [pid 5048] getdents64(4, [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5051] rmdir("./75/file0" [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] close(4) = 0 [pid 5052] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5048] rmdir("./70/file0" [pid 5509] close(7 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5049] getdents64(3, [pid 5048] <... rmdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] getdents64(3, [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5509] close(8 [pid 5051] close(3 [pid 5052] newfstatat(3, "", [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5509] close(9 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... close resumed>) = 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] getdents64(3, [pid 5051] rmdir("./75" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] rmdir("./70" [pid 5509] close(10 [pid 5053] close(3 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./72/binderfs", [pid 5048] <... rmdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./78/binderfs", [pid 5048] mkdir("./71", 0777 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] unlink("./78/binderfs") = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5052] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./76", 0777 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5509] close(11) = -1 EBADF (Bad file descriptor) [pid 5051] <... mkdir resumed>) = 0 [pid 5049] unlink("./72/binderfs" [pid 5509] close(12) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5509] close(13) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] close(14) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = 0 [pid 5509] close(15) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] close(16) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] close(17 [pid 5051] close(3 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./72/file0", [pid 5509] close(18 [pid 5052] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 75 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] close(19 [pid 5048] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5510 attached [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] close(20 [pid 5510] set_robust_list(0x5555566e0760, 24 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./78/file0", [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5510] <... set_robust_list resumed>) = 0 [pid 5509] close(21 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] close(3 [pid 5510] chdir("./73" [pid 5509] close(22 [pid 5049] <... openat resumed>) = 4 [pid 5049] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5510] <... chdir resumed>) = 0 [pid 5509] close(23) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5509] close(24 [pid 5052] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5510] <... prctl resumed>) = 0 [pid 5509] close(25 [pid 5052] <... openat resumed>) = 4 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] close(26 [pid 5052] newfstatat(4, "", [pid 5049] getdents64(4, [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 78 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5511 attached [pid 5510] setpgid(0, 0 [pid 5509] close(27 [pid 5052] getdents64(4, [pid 5049] close(4 [pid 5510] <... setpgid resumed>) = 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] set_robust_list(0x5555566e0760, 24 [pid 5510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5509] close(28 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... close resumed>) = 0 [pid 5511] <... set_robust_list resumed>) = 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5049] rmdir("./72/file0"./strace-static-x86_64: Process 5512 attached [pid 5511] chdir("./76" [pid 5509] close(29 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5512] set_robust_list(0x5555566e0760, 24 [pid 5511] <... chdir resumed>) = 0 [pid 5510] <... openat resumed>) = 3 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 73 [pid 5511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5509] exit_group(0 [pid 5052] <... close resumed>) = 0 [pid 5049] getdents64(3, [pid 5512] <... set_robust_list resumed>) = 0 [pid 5511] <... prctl resumed>) = 0 [pid 5510] write(3, "1000", 4 [pid 5509] <... exit_group resumed>) = ? [pid 5052] rmdir("./78/file0" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5511] setpgid(0, 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] close(3 [pid 5511] <... setpgid resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] getdents64(3, [pid 5049] rmdir("./72" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5512] chdir("./71" [pid 5511] <... openat resumed>) = 3 [pid 5510] <... write resumed>) = 4 [pid 5052] close(3) = 0 [pid 5052] rmdir("./78" [pid 5049] <... rmdir resumed>) = 0 [pid 5511] write(3, "1000", 4) = 4 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] mkdir("./73", 0777 [pid 5511] close(3 [pid 5049] <... mkdir resumed>) = 0 [pid 5511] <... close resumed>) = 0 [pid 5511] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5052] mkdir("./79", 0777) = 0 [pid 5511] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5511] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5512] <... chdir resumed>) = 0 [pid 5510] close(3 [pid 5052] <... openat resumed>) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5511] <... socket resumed>) = 4 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5511] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] close(3 [pid 5049] close(3 [pid 5511] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5511] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5511] memfd_create("syzkaller", 0 [pid 5512] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5510] <... close resumed>) = 0 [pid 5509] +++ exited with 0 +++ [pid 5512] <... prctl resumed>) = 0 [pid 5511] <... memfd_create resumed>) = 5 [pid 5510] symlink("/dev/binderfs", "./binderfs" [pid 5512] setpgid(0, 0 [pid 5511] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5512] <... setpgid resumed>) = 0 [pid 5511] <... mmap resumed>) = 0x7f1263f98000 [pid 5510] <... symlink resumed>) = 0 [pid 5050] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5511] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5511] mkdir("./file0", 000 [pid 5512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5511] <... mkdir resumed>) = 0 [pid 5510] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5512] <... openat resumed>) = 3 [pid 5510] <... socket resumed>) = 3 [pid 5050] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5514 attached [pid 5512] write(3, "1000", 4 [pid 5511] symlink(NULL, NULL [pid 5510] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] newfstatat(3, "", ./strace-static-x86_64: Process 5513 attached [pid 5514] set_robust_list(0x5555566e0760, 24 [pid 5512] <... write resumed>) = 4 [pid 5511] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5510] <... socket resumed>) = 4 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 81 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5514] <... set_robust_list resumed>) = 0 [pid 5511] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5510] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] getdents64(3, [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 75 [pid 5513] set_robust_list(0x5555566e0760, 24 [pid 5514] chdir("./79" [pid 5512] close(3 [pid 5511] <... mount resumed>) = 0 [pid 5510] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5512] <... close resumed>) = 0 [pid 5510] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5513] <... set_robust_list resumed>) = 0 [pid 5514] <... chdir resumed>) = 0 [pid 5512] symlink("/dev/binderfs", "./binderfs" [pid 5510] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5511] open(NULL, O_RDONLY [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5510] memfd_create("syzkaller", 0 [pid 5514] <... prctl resumed>) = 0 [pid 5511] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] newfstatat(AT_FDCWD, "./71/binderfs", [pid 5514] setpgid(0, 0 [pid 5511] close(3 [pid 5510] <... memfd_create resumed>) = 5 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5513] chdir("./73" [pid 5514] <... setpgid resumed>) = 0 [pid 5512] <... symlink resumed>) = 0 [pid 5511] <... close resumed>) = 0 [pid 5050] unlink("./71/binderfs" [pid 5513] <... chdir resumed>) = 0 [pid 5514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5512] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] <... unlink resumed>) = 0 [pid 5513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5514] <... openat resumed>) = 3 [pid 5512] <... socket resumed>) = 3 [pid 5511] close(4 [pid 5510] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5513] setpgid(0, 0 [pid 5510] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5513] <... setpgid resumed>) = 0 [pid 5512] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5511] <... close resumed>) = 0 [pid 5510] mkdir("./file0", 000 [pid 5514] write(3, "1000", 4 [pid 5511] close(5 [pid 5050] <... umount2 resumed>) = 0 [pid 5514] <... write resumed>) = 4 [pid 5511] <... close resumed>) = 0 [pid 5510] <... mkdir resumed>) = 0 [pid 5513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5514] close(3 [pid 5512] <... socket resumed>) = 4 [pid 5514] <... close resumed>) = 0 [pid 5511] close(6 [pid 5050] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5513] <... openat resumed>) = 3 [pid 5514] symlink("/dev/binderfs", "./binderfs" [pid 5512] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] symlink(NULL, NULL [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5514] <... symlink resumed>) = 0 [pid 5512] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5511] close(7 [pid 5510] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5050] newfstatat(AT_FDCWD, "./71/file0", [pid 5513] write(3, "1000", 4 [pid 5514] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5514] <... socket resumed>) = 3 [pid 5511] close(8) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5514] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5511] close(9 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5514] <... socket resumed>) = 4 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5511] close(10 [pid 5514] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5514] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5511] close(11 [pid 5514] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5511] close(12) = -1 EBADF (Bad file descriptor) [pid 5511] close(13 [pid 5050] newfstatat(4, "", [pid 5514] memfd_create("syzkaller", 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5514] <... memfd_create resumed>) = 5 [pid 5511] close(14 [pid 5050] getdents64(4, [pid 5514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5511] close(15 [pid 5514] <... mmap resumed>) = 0x7f1263f98000 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5514] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5511] close(16 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5514] mkdir("./file0", 000 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5514] <... mkdir resumed>) = 0 [pid 5511] close(17 [pid 5050] <... close resumed>) = 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./71/file0" [pid 5511] close(18 [pid 5513] <... write resumed>) = 4 [pid 5512] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] <... rmdir resumed>) = 0 [pid 5514] symlink(NULL, NULL [pid 5511] close(19 [pid 5514] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5511] close(20 [pid 5513] close(3 [pid 5512] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... mount resumed>) = 0 [pid 5514] <... mount resumed>) = 0 [pid 5511] close(21 [pid 5510] open(NULL, O_RDONLY [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] memfd_create("syzkaller", 0 [pid 5513] <... close resumed>) = 0 [pid 5511] close(22 [pid 5510] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] getdents64(3, [pid 5513] symlink("/dev/binderfs", "./binderfs" [pid 5514] open(NULL, O_RDONLY [pid 5512] <... memfd_create resumed>) = 5 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(3 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5514] <... open resumed>) = -1 EFAULT (Bad address) [pid 5511] close(23 [pid 5513] <... symlink resumed>) = 0 [pid 5514] close(3 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5513] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5514] <... close resumed>) = 0 [pid 5512] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5511] close(24 [pid 5510] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5513] <... socket resumed>) = 3 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(4 [pid 5513] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5514] close(4 [pid 5512] <... mmap resumed>) = 0x7f1263f98000 [pid 5511] close(25 [pid 5510] <... close resumed>) = 0 [pid 5050] rmdir("./71" [pid 5513] <... socket resumed>) = 4 [pid 5514] <... close resumed>) = 0 [pid 5512] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(5 [pid 5513] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5514] close(5 [pid 5512] mkdir("./file0", 000 [pid 5511] close(26 [pid 5510] <... close resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5513] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5514] <... close resumed>) = 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(6) = -1 EBADF (Bad file descriptor) [pid 5511] close(27 [pid 5514] close(7 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... mkdir resumed>) = 0 [pid 5511] close(28 [pid 5510] close(6 [pid 5513] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5514] close(8 [pid 5512] symlink(NULL, NULL [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] mkdir("./72", 0777 [pid 5513] memfd_create("syzkaller", 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5511] close(29 [pid 5510] close(7 [pid 5050] <... mkdir resumed>) = 0 [pid 5513] <... memfd_create resumed>) = 5 [pid 5514] close(9 [pid 5512] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5510] close(8 [pid 5513] <... mmap resumed>) = 0x7f1263f98000 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] exit_group(0 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5514] close(10 [pid 5511] <... exit_group resumed>) = ? [pid 5510] close(9 [pid 5513] mkdir("./file0", 000 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... mount resumed>) = 0 [pid 5511] +++ exited with 0 +++ [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5514] close(11 [pid 5510] close(10 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... openat resumed>) = 3 [pid 5513] <... mkdir resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5514] close(12 [pid 5510] close(11 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5513] symlink(NULL, NULL [pid 5514] close(13 [pid 5512] open(NULL, O_RDONLY [pid 5510] close(12 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5513] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... open resumed>) = -1 EFAULT (Bad address) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5513] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5514] close(14 [pid 5512] close(3 [pid 5510] close(13 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] close(3 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... close resumed>) = 0 [pid 5514] close(15 [pid 5512] close(4 [pid 5510] close(14 [pid 5051] <... openat resumed>) = 3 [pid 5513] <... mount resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = 0 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(3, "", [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5514] close(16 [pid 5512] close(5 [pid 5510] close(15 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5513] open(NULL, O_RDONLY [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = 0 [pid 5510] close(16 [pid 5513] <... open resumed>) = -1 EFAULT (Bad address) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(6 [pid 5513] close(3 [pid 5514] close(17 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(17./strace-static-x86_64: Process 5515 attached [pid 5513] <... close resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(7 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5515] set_robust_list(0x5555566e0760, 24 [pid 5513] close(4 [pid 5514] close(18 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(18 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5515] <... set_robust_list resumed>) = 0 [pid 5513] <... close resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(8 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 74 [pid 5515] chdir("./72" [pid 5513] close(5 [pid 5514] close(19 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(19 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] <... chdir resumed>) = 0 [pid 5513] <... close resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(9 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./76/binderfs", [pid 5515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5513] close(6 [pid 5514] close(20 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(20 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5515] <... prctl resumed>) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(10 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./76/binderfs" [pid 5515] setpgid(0, 0 [pid 5513] close(7 [pid 5514] close(21 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(21 [pid 5051] <... unlink resumed>) = 0 [pid 5515] <... setpgid resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(22 [pid 5512] close(11 [pid 5510] close(22 [pid 5051] <... umount2 resumed>) = 0 [pid 5513] close(8 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... openat resumed>) = 3 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(23 [pid 5512] close(12 [pid 5510] close(23 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5513] close(9 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./76/file0", [pid 5515] write(3, "1000", 4 [pid 5514] close(24 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5515] <... write resumed>) = 4 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(24 [pid 5051] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] close(3 [pid 5514] close(25 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] <... close resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5515] symlink("/dev/binderfs", "./binderfs" [pid 5514] close(26 [pid 5051] <... openat resumed>) = 4 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(27 [pid 5515] <... symlink resumed>) = 0 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(28) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(4, "", [pid 5515] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5514] close(29 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5515] <... socket resumed>) = 3 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5514] exit_group(0 [pid 5515] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5514] <... exit_group resumed>) = ? [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5515] <... socket resumed>) = 4 [pid 5515] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] getdents64(4, [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5515] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] close(4 [pid 5515] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5515] memfd_create("syzkaller", 0 [pid 5051] rmdir("./76/file0" [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(13 [pid 5510] close(25 [pid 5051] <... rmdir resumed>) = 0 [pid 5515] <... memfd_create resumed>) = 5 [pid 5513] close(10 [pid 5514] +++ exited with 0 +++ [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(14 [pid 5510] close(26 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5515] <... mmap resumed>) = 0x7f1263f98000 [pid 5513] close(11 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5515] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(15 [pid 5510] close(27 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5515] mkdir("./file0", 000 [pid 5513] close(12 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(16 [pid 5510] close(28 [pid 5513] close(13 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(17 [pid 5510] close(29 [pid 5513] close(14 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(18 [pid 5510] exit_group(0 [pid 5513] close(15 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... exit_group resumed>) = ? [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(19 [pid 5052] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5051] rmdir("./76") = 0 [pid 5510] +++ exited with 0 +++ [pid 5513] close(16 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] newfstatat(3, "", [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(20 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] mkdir("./77", 0777 [pid 5513] close(17 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] <... mkdir resumed>) = 0 [pid 5515] <... mkdir resumed>) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(21 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5515] symlink(NULL, NULL [pid 5513] close(18 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(22 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5513] close(19 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(AT_FDCWD, "./79/binderfs", [pid 5515] <... mount resumed>) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(23 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5513] close(20 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(24 [pid 5053] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] unlink("./79/binderfs" [pid 5051] <... openat resumed>) = 3 [pid 5515] open(NULL, O_RDONLY [pid 5513] close(21 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] <... unlink resumed>) = 0 [pid 5515] <... open resumed>) = -1 EFAULT (Bad address) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(25 [pid 5053] newfstatat(3, "", [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5515] close(3 [pid 5513] close(22 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5515] <... close resumed>) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(26 [pid 5053] getdents64(3, [pid 5052] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(3 [pid 5515] close(4 [pid 5513] close(23 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... close resumed>) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(27 [pid 5513] close(24 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(28 [pid 5513] close(25 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] <... close resumed>) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(29 [pid 5053] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5515] close(5 [pid 5513] close(26 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5513] close(27 [pid 5512] exit_group(0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... exit_group resumed>) = ? [pid 5513] close(28 [pid 5053] newfstatat(AT_FDCWD, "./73/binderfs", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] newfstatat(AT_FDCWD, "./79/file0", [pid 5053] unlink("./73/binderfs") = 0 [pid 5515] <... close resumed>) = 0 [pid 5512] +++ exited with 0 +++ [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] close(6 [pid 5513] close(29 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5515] close(7 [pid 5513] exit_group(0 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5516 attached [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] <... exit_group resumed>) = ? [pid 5053] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 79 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5515] close(8 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./73/file0", [pid 5052] <... openat resumed>) = 4 [pid 5515] close(9 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] close(10 [pid 5053] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] +++ exited with 0 +++ [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(4, "", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5516] set_robust_list(0x5555566e0760, 24 [pid 5515] close(11 [pid 5053] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5048] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5516] <... set_robust_list resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5516] chdir("./77" [pid 5515] close(12 [pid 5052] getdents64(4, [pid 5049] <... restart_syscall resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5515] close(13 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(3, "", [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5049] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] close(14 [pid 5053] getdents64(4, [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] close(4 [pid 5049] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5515] close(15 [pid 5052] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] getdents64(3, [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5515] close(16 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] rmdir("./79/file0" [pid 5049] newfstatat(3, "", [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5052] <... rmdir resumed>) = 0 [pid 5516] <... chdir resumed>) = 0 [pid 5515] close(17 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] unlink("./71/binderfs" [pid 5516] <... prctl resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] setpgid(0, 0 [pid 5048] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5516] <... setpgid resumed>) = 0 [pid 5515] close(18 [pid 5053] <... close resumed>) = 0 [pid 5049] getdents64(3, [pid 5516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./73/file0" [pid 5052] getdents64(3, [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... umount2 resumed>) = 0 [pid 5516] <... openat resumed>) = 3 [pid 5515] close(19 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5516] write(3, "1000", 4 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5516] <... write resumed>) = 4 [pid 5515] close(20 [pid 5048] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5516] close(3 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5516] <... close resumed>) = 0 [pid 5515] close(21 [pid 5053] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./73/binderfs", [pid 5048] newfstatat(AT_FDCWD, "./71/file0", [pid 5516] symlink("/dev/binderfs", "./binderfs" [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] rmdir("./79" [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5516] <... symlink resumed>) = 0 [pid 5515] close(22 [pid 5053] close(3 [pid 5052] <... rmdir resumed>) = 0 [pid 5516] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5049] unlink("./73/binderfs" [pid 5048] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5516] <... socket resumed>) = 3 [pid 5515] close(23 [pid 5053] rmdir("./73" [pid 5052] mkdir("./80", 0777 [pid 5516] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5516] <... socket resumed>) = 4 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5516] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5515] close(24 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5516] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 4 [pid 5516] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5515] close(25 [pid 5049] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(4, "", [pid 5516] memfd_create("syzkaller", 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./74", 0777 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5516] <... memfd_create resumed>) = 5 [pid 5515] close(26 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5516] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5049] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(4, [pid 5516] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5515] close(27 [pid 5516] mkdir("./file0", 000 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5516] <... mkdir resumed>) = 0 [pid 5515] close(28 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] newfstatat(AT_FDCWD, "./73/file0", [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5516] symlink(NULL, NULL [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5516] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5515] close(29 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] close(3 [pid 5048] getdents64(4, [pid 5516] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5049] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5516] <... mount resumed>) = 0 [pid 5515] exit_group(0 [pid 5053] <... openat resumed>) = 3 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] close(4 [pid 5515] <... exit_group resumed>) = ? [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... close resumed>) = 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... openat resumed>) = 4 [pid 5048] rmdir("./71/file0" [pid 5516] open(NULL, O_RDONLY [pid 5049] newfstatat(4, "", [pid 5048] <... rmdir resumed>) = 0 [pid 5053] close(3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... close resumed>) = 0 [pid 5049] getdents64(4, [pid 5048] getdents64(3, [pid 5516] <... open resumed>) = -1 EFAULT (Bad address) [pid 5516] close(3 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5516] <... close resumed>) = 0 [pid 5049] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5516] close(4 [pid 5515] +++ exited with 0 +++ [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5516] <... close resumed>) = 0 [pid 5049] close(4 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... close resumed>) = 0 [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5049] rmdir("./73/file0" [pid 5048] close(3 [pid 5516] close(5 [pid 5050] <... restart_syscall resumed>) = 0 [pid 5516] <... close resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 82 [pid 5048] <... close resumed>) = 0 ./strace-static-x86_64: Process 5517 attached [pid 5516] close(6 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] rmdir("./71"./strace-static-x86_64: Process 5518 attached [pid 5517] set_robust_list(0x5555566e0760, 24 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5516] close(7 [pid 5518] set_robust_list(0x5555566e0760, 24 [pid 5517] <... set_robust_list resumed>) = 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... rmdir resumed>) = 0 [pid 5516] close(8 [pid 5050] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5517] chdir("./80" [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5516] close(9 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5518] <... set_robust_list resumed>) = 0 [pid 5517] <... chdir resumed>) = 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 76 [pid 5050] newfstatat(3, "", [pid 5049] close(3 [pid 5518] chdir("./74" [pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5516] close(10 [pid 5049] <... close resumed>) = 0 [pid 5048] mkdir("./72", 0777 [pid 5518] <... chdir resumed>) = 0 [pid 5517] <... prctl resumed>) = 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] rmdir("./73" [pid 5048] <... mkdir resumed>) = 0 [pid 5050] getdents64(3, [pid 5049] <... rmdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5516] close(11 [pid 5518] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5517] setpgid(0, 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./72/binderfs", [pid 5518] <... prctl resumed>) = 0 [pid 5517] <... setpgid resumed>) = 0 [pid 5516] close(12 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5518] setpgid(0, 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] mkdir("./74", 0777 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5518] <... setpgid resumed>) = 0 [pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5516] close(13 [pid 5050] unlink("./72/binderfs" [pid 5518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5517] <... openat resumed>) = 3 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5518] <... openat resumed>) = 3 [pid 5516] close(14 [pid 5518] write(3, "1000", 4 [pid 5517] write(3, "1000", 4 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] <... write resumed>) = 4 [pid 5517] <... write resumed>) = 4 [pid 5516] close(15 [pid 5050] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5518] close(3 [pid 5517] close(3 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5518] <... close resumed>) = 0 [pid 5517] <... close resumed>) = 0 [pid 5516] close(16 [pid 5050] <... umount2 resumed>) = 0 [pid 5048] close(3 [pid 5518] symlink("/dev/binderfs", "./binderfs" [pid 5517] symlink("/dev/binderfs", "./binderfs" [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5516] close(17) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5516] close(18 [pid 5517] <... symlink resumed>) = 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5518] <... symlink resumed>) = 0 [pid 5516] close(19 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5518] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5517] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(20 [pid 5517] <... socket resumed>) = 3 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] <... socket resumed>) = 3 [pid 5517] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5516] close(21 [pid 5518] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(22 [pid 5518] <... socket resumed>) = 4 [pid 5517] <... socket resumed>) = 4 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./72/file0", [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5516] close(23 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] close(3 [pid 5518] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5517] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5517] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5516] close(24 [pid 5050] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... close resumed>) = 0 [pid 5518] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5517] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5519 attached [pid 5518] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5517] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5516] close(25 [pid 5050] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5518] memfd_create("syzkaller", 0 [pid 5517] memfd_create("syzkaller", 0 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(26 [pid 5519] set_robust_list(0x5555566e0760, 24 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(27 [pid 5050] <... openat resumed>) = 4 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 74 [pid 5519] <... set_robust_list resumed>) = 0 [pid 5518] <... memfd_create resumed>) = 5 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5517] <... memfd_create resumed>) = 5 [pid 5516] close(28) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(4, "", [pid 5519] chdir("./72" [pid 5518] <... mmap resumed>) = 0x7f1263f98000 [pid 5517] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5516] close(29 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5519] <... chdir resumed>) = 0 [pid 5518] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5517] <... mmap resumed>) = 0x7f1263f98000 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5519] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5518] mkdir("./file0", 000 [pid 5517] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5516] exit_group(0./strace-static-x86_64: Process 5520 attached [pid 5519] <... prctl resumed>) = 0 [pid 5517] mkdir("./file0", 000 [pid 5516] <... exit_group resumed>) = ? [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 76 [pid 5050] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] close(4) = 0 [pid 5050] rmdir("./72/file0" [pid 5518] <... mkdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5050] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] close(3) = 0 [pid 5050] rmdir("./72") = 0 [pid 5520] set_robust_list(0x5555566e0760, 24 [pid 5519] setpgid(0, 0 [pid 5516] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5520] <... set_robust_list resumed>) = 0 [pid 5519] <... setpgid resumed>) = 0 [pid 5518] symlink(NULL, NULL [pid 5517] <... mkdir resumed>) = 0 [pid 5050] mkdir("./73", 0777 [pid 5520] chdir("./74" [pid 5519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5518] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5517] symlink(NULL, NULL [pid 5050] <... mkdir resumed>) = 0 [pid 5520] <... chdir resumed>) = 0 [pid 5518] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5517] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5517] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5518] <... mount resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5520] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5519] <... openat resumed>) = 3 [pid 5518] open(NULL, O_RDONLY [pid 5517] <... mount resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5520] <... prctl resumed>) = 0 [pid 5519] write(3, "1000", 4 [pid 5518] <... open resumed>) = -1 EFAULT (Bad address) [pid 5517] open(NULL, O_RDONLY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5519] <... write resumed>) = 4 [pid 5518] close(3 [pid 5517] <... open resumed>) = -1 EFAULT (Bad address) [pid 5519] close(3 [pid 5517] close(3 [pid 5051] getdents64(3, [pid 5050] <... openat resumed>) = 3 [pid 5518] <... close resumed>) = 0 [pid 5520] setpgid(0, 0 [pid 5519] <... close resumed>) = 0 [pid 5518] close(4 [pid 5517] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5520] <... setpgid resumed>) = 0 [pid 5519] symlink("/dev/binderfs", "./binderfs" [pid 5518] <... close resumed>) = 0 [pid 5517] close(4 [pid 5051] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5519] <... symlink resumed>) = 0 [pid 5518] close(5 [pid 5517] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5518] <... close resumed>) = 0 [pid 5517] close(5 [pid 5051] newfstatat(AT_FDCWD, "./77/binderfs", [pid 5050] close(3 [pid 5517] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... close resumed>) = 0 [pid 5518] close(6 [pid 5517] close(6 [pid 5519] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5517] close(7 [pid 5051] unlink("./77/binderfs" [pid 5520] <... openat resumed>) = 3 [pid 5519] <... socket resumed>) = 3 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] write(3, "1000", 4 [pid 5519] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5518] close(7 [pid 5517] close(8 [pid 5051] <... unlink resumed>) = 0 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] close(9 [pid 5051] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... socket resumed>) = 4 [pid 5519] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5518] close(8 [pid 5517] close(10 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = 0 [pid 5517] close(11 [pid 5518] close(9 [pid 5519] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5518] close(10 [pid 5517] close(12 [pid 5051] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5520] <... write resumed>) = 4 [pid 5519] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5521 attached [pid 5519] memfd_create("syzkaller", 0 [pid 5517] close(13 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] set_robust_list(0x5555566e0760, 24 [pid 5519] <... memfd_create resumed>) = 5 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./77/file0", [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 75 [pid 5521] <... set_robust_list resumed>) = 0 [pid 5520] close(3 [pid 5519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5517] close(14 [pid 5521] chdir("./73" [pid 5520] <... close resumed>) = 0 [pid 5518] close(11 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5521] <... chdir resumed>) = 0 [pid 5520] symlink("/dev/binderfs", "./binderfs" [pid 5519] <... mmap resumed>) = 0x7f1263f98000 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] close(15 [pid 5521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5520] <... symlink resumed>) = 0 [pid 5518] close(12 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] <... prctl resumed>) = 0 [pid 5520] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5519] mkdir("./file0", 000 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] close(16 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] setpgid(0, 0 [pid 5518] close(13 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5521] <... setpgid resumed>) = 0 [pid 5520] <... socket resumed>) = 3 [pid 5519] <... mkdir resumed>) = 0 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] close(17 [pid 5051] <... openat resumed>) = 4 [pid 5521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5518] close(14 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... openat resumed>) = 3 [pid 5520] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5519] symlink(NULL, NULL [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] close(18 [pid 5051] newfstatat(4, "", [pid 5520] <... socket resumed>) = 4 [pid 5519] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5518] close(15 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5519] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] close(19 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5521] write(3, "1000", 4 [pid 5520] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5521] <... write resumed>) = 4 [pid 5520] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5519] <... mount resumed>) = 0 [pid 5518] close(16 [pid 5517] close(20 [pid 5521] close(3 [pid 5520] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5519] open(NULL, O_RDONLY [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5521] <... close resumed>) = 0 [pid 5520] memfd_create("syzkaller", 0 [pid 5519] <... open resumed>) = -1 EFAULT (Bad address) [pid 5518] close(17 [pid 5517] close(21 [pid 5521] symlink("/dev/binderfs", "./binderfs" [pid 5520] <... memfd_create resumed>) = 5 [pid 5519] close(3 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... symlink resumed>) = 0 [pid 5519] <... close resumed>) = 0 [pid 5518] close(18 [pid 5517] close(22 [pid 5051] getdents64(4, [pid 5520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5519] close(4 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5521] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5517] close(23 [pid 5051] close(4 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... socket resumed>) = 3 [pid 5517] close(24 [pid 5051] <... close resumed>) = 0 [pid 5520] <... mmap resumed>) = 0x7f1263f98000 [pid 5519] <... close resumed>) = 0 [pid 5518] close(19 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./77/file0" [pid 5521] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5520] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5519] close(5 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] close(25 [pid 5051] <... rmdir resumed>) = 0 [pid 5521] <... socket resumed>) = 4 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5518] close(20 [pid 5517] close(26 [pid 5521] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5520] mkdir("./file0", 000 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5519] <... close resumed>) = 0 [pid 5518] close(21 [pid 5517] close(27 [pid 5051] getdents64(3, [pid 5521] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5520] <... mkdir resumed>) = 0 [pid 5519] close(6 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] memfd_create("syzkaller", 0 [pid 5518] close(22 [pid 5517] close(28 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5518] close(23 [pid 5517] close(29 [pid 5051] <... close resumed>) = 0 [pid 5521] <... memfd_create resumed>) = 5 [pid 5520] symlink(NULL, NULL [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./77" [pid 5521] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5051] <... rmdir resumed>) = 0 [pid 5521] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5521] mkdir("./file0", 000 [pid 5520] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5519] close(7 [pid 5518] close(24 [pid 5517] exit_group(0 [pid 5520] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] close(8 [pid 5517] <... exit_group resumed>) = ? [pid 5518] close(25) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./78", 0777 [pid 5521] <... mkdir resumed>) = 0 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(26 [pid 5517] +++ exited with 0 +++ [pid 5051] <... mkdir resumed>) = 0 [pid 5520] <... mount resumed>) = 0 [pid 5519] close(9 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(27 [pid 5519] close(10 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] symlink(NULL, NULL [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(28 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5519] close(11 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(29 [pid 5519] close(12 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5519] close(13 [pid 5518] exit_group(0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5521] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] <... exit_group resumed>) = ? [pid 5051] <... openat resumed>) = 3 [pid 5519] close(14 [pid 5521] <... mount resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5521] open(NULL, O_RDONLY [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5518] +++ exited with 0 +++ [pid 5051] close(3 [pid 5520] open(NULL, O_RDONLY [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5521] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5520] <... open resumed>) = -1 EFAULT (Bad address) [pid 5519] close(15 [pid 5052] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5521] close(3 [pid 5052] <... openat resumed>) = 3 [pid 5521] <... close resumed>) = 0 [pid 5520] close(3 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5521] close(4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5521] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5521] close(5 [pid 5519] close(16 [pid 5053] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5520] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5521] <... close resumed>) = 0 [pid 5520] close(4 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] close(6 [pid 5520] <... close resumed>) = 0 [pid 5519] close(17 [pid 5053] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(5 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] newfstatat(AT_FDCWD, "./80/binderfs", [pid 5521] close(7 [pid 5520] <... close resumed>) = 0 [pid 5519] close(18 [pid 5053] newfstatat(3, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(6 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] unlink("./80/binderfs" [pid 5521] close(8 [pid 5519] close(19 [pid 5053] getdents64(3, [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 80 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5522 attached [pid 5521] close(9 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] close(20 [pid 5053] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] close(10 [pid 5053] newfstatat(AT_FDCWD, "./74/binderfs", [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5521] close(11 [pid 5053] unlink("./74/binderfs" [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5052] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5522] set_robust_list(0x5555566e0760, 24 [pid 5521] close(12 [pid 5520] close(7 [pid 5519] close(21 [pid 5522] <... set_robust_list resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] chdir("./78" [pid 5521] close(13 [pid 5520] close(8 [pid 5519] close(22 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] close(14) = -1 EBADF (Bad file descriptor) [pid 5521] close(15 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(9 [pid 5519] close(23 [pid 5522] <... chdir resumed>) = 0 [pid 5521] close(16 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... prctl resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(10 [pid 5519] close(24 [pid 5522] setpgid(0, 0 [pid 5521] close(17 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... setpgid resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(11 [pid 5519] close(25 [pid 5521] close(18) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] close(19) = -1 EBADF (Bad file descriptor) [pid 5520] close(12 [pid 5519] close(26 [pid 5052] newfstatat(AT_FDCWD, "./80/file0", [pid 5522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5521] close(20 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5522] <... openat resumed>) = 3 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(13 [pid 5519] close(27 [pid 5053] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5522] write(3, "1000", 4 [pid 5521] close(21 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] <... write resumed>) = 4 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(14 [pid 5519] close(28 [pid 5053] newfstatat(AT_FDCWD, "./74/file0", [pid 5522] close(3 [pid 5521] close(22 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5522] <... close resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(15 [pid 5519] close(29 [pid 5053] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] symlink("/dev/binderfs", "./binderfs" [pid 5521] close(23 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5522] <... symlink resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(16 [pid 5519] exit_group(0 [pid 5053] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... openat resumed>) = 4 [pid 5522] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5521] close(24 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... exit_group resumed>) = ? [pid 5053] <... openat resumed>) = 4 [pid 5052] newfstatat(4, "", [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(17 [pid 5053] newfstatat(4, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5521] close(25 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] +++ exited with 0 +++ [pid 5053] getdents64(4, [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5522] <... socket resumed>) = 3 [pid 5521] close(26 [pid 5520] close(18 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5521] close(27 [pid 5520] close(19 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5522] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5052] <... close resumed>) = 0 [pid 5522] <... socket resumed>) = 4 [pid 5521] close(28 [pid 5520] close(20 [pid 5053] <... close resumed>) = 0 [pid 5052] rmdir("./80/file0" [pid 5522] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./74/file0" [pid 5052] <... rmdir resumed>) = 0 [pid 5521] close(29 [pid 5048] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5520] close(21 [pid 5522] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5520] close(22 [pid 5522] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5521] exit_group(0 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5521] <... exit_group resumed>) = ? [pid 5522] memfd_create("syzkaller", 0 [pid 5521] +++ exited with 0 +++ [pid 5520] close(23 [pid 5053] getdents64(3, [pid 5052] getdents64(3, [pid 5048] <... openat resumed>) = 3 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5520] close(24 [pid 5048] newfstatat(3, "", [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5520] close(25 [pid 5050] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5522] <... memfd_create resumed>) = 5 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5520] close(26 [pid 5053] close(3 [pid 5052] close(3 [pid 5050] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5522] <... mmap resumed>) = 0x7f1263f98000 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5048] getdents64(3, [pid 5522] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5520] close(27 [pid 5053] rmdir("./74" [pid 5052] rmdir("./80" [pid 5050] newfstatat(3, "", [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5522] mkdir("./file0", 000 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5520] close(28 [pid 5053] mkdir("./75", 0777 [pid 5052] mkdir("./81", 0777 [pid 5050] getdents64(3, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] <... mkdir resumed>) = 0 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] newfstatat(AT_FDCWD, "./72/binderfs", [pid 5520] close(29 [pid 5522] symlink(NULL, NULL [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5520] exit_group(0 [pid 5048] unlink("./72/binderfs" [pid 5520] <... exit_group resumed>) = ? [pid 5050] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] newfstatat(AT_FDCWD, "./73/binderfs", [pid 5048] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5522] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5520] +++ exited with 0 +++ [pid 5053] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] unlink("./73/binderfs" [pid 5048] <... umount2 resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5050] <... unlink resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... restart_syscall resumed>) = 0 [pid 5053] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5048] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] close(3 [pid 5049] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./72/file0", [pid 5522] <... mount resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5050] newfstatat(AT_FDCWD, "./73/file0", [pid 5049] newfstatat(3, "", [pid 5048] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(3, [pid 5048] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... openat resumed>) = 4 [pid 5522] open(NULL, O_RDONLY [pid 5050] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(4, "", [pid 5522] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] <... openat resumed>) = 4 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 77 [pid 5050] newfstatat(4, "", [pid 5049] newfstatat(AT_FDCWD, "./74/binderfs", [pid 5048] getdents64(4, [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] getdents64(4, [pid 5049] unlink("./74/binderfs" [pid 5048] getdents64(4, [pid 5049] <... unlink resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] getdents64(4, [pid 5049] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5522] close(3 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 83 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4./strace-static-x86_64: Process 5524 attached [pid 5050] close(4 [pid 5048] <... close resumed>) = 0 [pid 5524] set_robust_list(0x5555566e0760, 24 [pid 5050] <... close resumed>) = 0 [pid 5048] rmdir("./72/file0"./strace-static-x86_64: Process 5523 attached [pid 5524] <... set_robust_list resumed>) = 0 [pid 5522] <... close resumed>) = 0 [pid 5050] rmdir("./73/file0" [pid 5048] <... rmdir resumed>) = 0 [pid 5522] close(4 [pid 5524] chdir("./81" [pid 5523] set_robust_list(0x5555566e0760, 24 [pid 5050] <... rmdir resumed>) = 0 [pid 5523] <... set_robust_list resumed>) = 0 [pid 5522] <... close resumed>) = 0 [pid 5524] <... chdir resumed>) = 0 [pid 5523] chdir("./75" [pid 5522] close(5 [pid 5048] getdents64(3, [pid 5523] <... chdir resumed>) = 0 [pid 5522] <... close resumed>) = 0 [pid 5050] getdents64(3, [pid 5524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5523] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5522] close(6 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5524] <... prctl resumed>) = 0 [pid 5523] <... prctl resumed>) = 0 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5049] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5524] setpgid(0, 0 [pid 5523] setpgid(0, 0 [pid 5522] close(7 [pid 5050] <... close resumed>) = 0 [pid 5048] close(3 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] close(8 [pid 5050] rmdir("./73" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... close resumed>) = 0 [pid 5523] <... setpgid resumed>) = 0 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... setpgid resumed>) = 0 [pid 5523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5522] close(9 [pid 5049] newfstatat(AT_FDCWD, "./74/file0", [pid 5524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] rmdir("./72" [pid 5523] <... openat resumed>) = 3 [pid 5524] <... openat resumed>) = 3 [pid 5522] close(10 [pid 5523] write(3, "1000", 4 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] <... write resumed>) = 4 [pid 5522] close(11 [pid 5523] close(3 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] <... close resumed>) = 0 [pid 5522] close(12 [pid 5049] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... rmdir resumed>) = 0 [pid 5523] symlink("/dev/binderfs", "./binderfs" [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] write(3, "1000", 4 [pid 5522] close(13 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... write resumed>) = 4 [pid 5523] <... symlink resumed>) = 0 [pid 5522] close(14 [pid 5050] mkdir("./74", 0777 [pid 5049] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] mkdir("./73", 0777 [pid 5523] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... mkdir resumed>) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5048] <... mkdir resumed>) = 0 [pid 5524] close(3 [pid 5522] close(15 [pid 5523] <... socket resumed>) = 3 [pid 5049] newfstatat(4, "", [pid 5524] <... close resumed>) = 0 [pid 5523] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5524] symlink("/dev/binderfs", "./binderfs" [pid 5523] <... socket resumed>) = 4 [pid 5522] close(16 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] getdents64(4, [pid 5048] <... openat resumed>) = 3 [pid 5524] <... symlink resumed>) = 0 [pid 5523] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5522] close(17 [pid 5523] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5524] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5523] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5522] close(18 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] getdents64(4, [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5524] <... socket resumed>) = 3 [pid 5523] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5524] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5523] memfd_create("syzkaller", 0 [pid 5522] close(19 [pid 5050] close(3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5524] <... socket resumed>) = 4 [pid 5523] <... memfd_create resumed>) = 5 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(4 [pid 5048] <... close resumed>) = 0 [pid 5523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5522] close(20 [pid 5050] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5524] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5523] <... mmap resumed>) = 0x7f1263f98000 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./74/file0" [pid 5524] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5523] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5522] close(21 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5523] mkdir("./file0", 000 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] close(22) = -1 EBADF (Bad file descriptor) [pid 5522] close(23 [pid 5524] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5522] close(24 [pid 5524] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5523] <... mkdir resumed>) = 0 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5522] close(25 [pid 5524] memfd_create("syzkaller", 0 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5522] close(26) = -1 EBADF (Bad file descriptor) [pid 5524] <... memfd_create resumed>) = 5 [pid 5523] symlink(NULL, NULL [pid 5522] close(27 [pid 5049] close(3 [pid 5523] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] close(28 [pid 5523] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5522] close(29 [pid 5524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... mmap resumed>) = 0x7f1263f98000 [pid 5523] <... mount resumed>) = 0 [pid 5049] rmdir("./74" [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 75 [pid 5524] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5522] exit_group(0./strace-static-x86_64: Process 5525 attached [pid 5524] mkdir("./file0", 000 [pid 5522] <... exit_group resumed>) = ? [pid 5049] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5526 attached [pid 5524] <... mkdir resumed>) = 0 [pid 5526] set_robust_list(0x5555566e0760, 24) = 0 [pid 5525] set_robust_list(0x5555566e0760, 24 [pid 5523] open(NULL, O_RDONLY [pid 5522] +++ exited with 0 +++ [pid 5526] chdir("./74" [pid 5525] <... set_robust_list resumed>) = 0 [pid 5523] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 76 [pid 5049] mkdir("./75", 0777 [pid 5526] <... chdir resumed>) = 0 [pid 5525] chdir("./73" [pid 5524] symlink(NULL, NULL [pid 5523] close(3 [pid 5526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5525] <... chdir resumed>) = 0 [pid 5524] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5523] <... close resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5526] <... prctl resumed>) = 0 [pid 5525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5524] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5523] close(4 [pid 5051] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5526] setpgid(0, 0 [pid 5525] <... prctl resumed>) = 0 [pid 5524] <... mount resumed>) = 0 [pid 5523] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5523] close(5 [pid 5526] <... setpgid resumed>) = 0 [pid 5525] setpgid(0, 0 [pid 5051] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5525] <... setpgid resumed>) = 0 [pid 5523] <... close resumed>) = 0 [pid 5526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5523] close(6 [pid 5051] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5526] <... openat resumed>) = 3 [pid 5524] open(NULL, O_RDONLY [pid 5051] newfstatat(3, "", [pid 5526] write(3, "1000", 4 [pid 5524] <... open resumed>) = -1 EFAULT (Bad address) [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5526] <... write resumed>) = 4 [pid 5525] <... openat resumed>) = 3 [pid 5524] close(3 [pid 5523] close(7 [pid 5051] getdents64(3, [pid 5049] <... openat resumed>) = 3 [pid 5526] close(3 [pid 5524] <... close resumed>) = 0 [pid 5526] <... close resumed>) = 0 [pid 5524] close(4 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5526] symlink("/dev/binderfs", "./binderfs" [pid 5524] <... close resumed>) = 0 [pid 5051] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5526] <... symlink resumed>) = 0 [pid 5524] close(5 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5524] <... close resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5526] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5524] close(6 [pid 5051] unlink("./78/binderfs" [pid 5526] <... socket resumed>) = 3 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5525] write(3, "1000", 4 [pid 5524] close(7) = -1 EBADF (Bad file descriptor) [pid 5524] close(8) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5524] close(9 [pid 5526] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5525] <... write resumed>) = 4 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(8 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5526] <... socket resumed>) = 4 [pid 5524] close(10 [pid 5526] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5525] close(3 [pid 5524] close(11 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5526] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5525] <... close resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(9 [pid 5049] <... close resumed>) = 0 [pid 5525] symlink("/dev/binderfs", "./binderfs" [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5526] memfd_create("syzkaller", 0 [pid 5524] close(12 [pid 5523] close(10 [pid 5526] <... memfd_create resumed>) = 5 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5524] close(13) = -1 EBADF (Bad file descriptor) [pid 5524] close(14 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... mmap resumed>) = 0x7f1263f98000 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... symlink resumed>) = 0 [pid 5524] close(15 [pid 5523] close(11 [pid 5526] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] close(16 [pid 5523] close(12 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 77 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] mkdir("./file0", 000 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(13./strace-static-x86_64: Process 5527 attached [pid 5526] <... mkdir resumed>) = 0 [pid 5525] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5524] close(17 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] set_robust_list(0x5555566e0760, 24 [pid 5523] close(14) = -1 EBADF (Bad file descriptor) [pid 5527] <... set_robust_list resumed>) = 0 [pid 5525] <... socket resumed>) = 3 [pid 5523] close(15 [pid 5527] chdir("./75" [pid 5525] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] <... chdir resumed>) = 0 [pid 5524] close(18 [pid 5527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5526] symlink(NULL, NULL [pid 5525] <... socket resumed>) = 4 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(16 [pid 5051] <... umount2 resumed>) = 0 [pid 5527] <... prctl resumed>) = 0 [pid 5526] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5525] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5524] close(19 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] setpgid(0, 0 [pid 5525] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5523] close(17 [pid 5527] <... setpgid resumed>) = 0 [pid 5525] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5526] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5525] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(18 [pid 5051] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5527] <... openat resumed>) = 3 [pid 5526] <... mount resumed>) = 0 [pid 5524] close(20 [pid 5525] memfd_create("syzkaller", 0 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] write(3, "1000", 4 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(19 [pid 5525] <... memfd_create resumed>) = 5 [pid 5051] newfstatat(AT_FDCWD, "./78/file0", [pid 5527] <... write resumed>) = 4 [pid 5525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5524] close(21 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5527] close(3 [pid 5526] open(NULL, O_RDONLY [pid 5525] <... mmap resumed>) = 0x7f1263f98000 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(20 [pid 5051] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5527] <... close resumed>) = 0 [pid 5526] <... open resumed>) = -1 EFAULT (Bad address) [pid 5525] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5524] close(22 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] symlink("/dev/binderfs", "./binderfs" [pid 5526] close(3 [pid 5525] mkdir("./file0", 000 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(21 [pid 5051] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5527] <... symlink resumed>) = 0 [pid 5526] <... close resumed>) = 0 [pid 5524] close(23 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(22 [pid 5524] close(24 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5526] close(4 [pid 5525] <... mkdir resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(23 [pid 5051] newfstatat(4, "", [pid 5527] <... socket resumed>) = 3 [pid 5526] <... close resumed>) = 0 [pid 5525] symlink(NULL, NULL [pid 5524] close(25 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5526] close(5 [pid 5525] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(24 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = 0 [pid 5524] close(26 [pid 5051] getdents64(4, [pid 5527] <... socket resumed>) = 4 [pid 5526] close(6 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(25 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5527] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5524] close(27 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5527] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5526] close(7 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(26 [pid 5527] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... mount resumed>) = 0 [pid 5524] close(28 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5527] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5526] close(8 [pid 5525] open(NULL, O_RDONLY [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(27 [pid 5527] memfd_create("syzkaller", 0 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... open resumed>) = -1 EFAULT (Bad address) [pid 5524] close(29 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(4 [pid 5527] <... memfd_create resumed>) = 5 [pid 5526] close(9 [pid 5525] close(3 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = 0 [pid 5524] exit_group(0 [pid 5523] close(28 [pid 5527] <... mmap resumed>) = 0x7f1263f98000 [pid 5526] close(10 [pid 5525] close(4 [pid 5524] <... exit_group resumed>) = ? [pid 5051] rmdir("./78/file0" [pid 5527] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = 0 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5527] mkdir("./file0", 000 [pid 5523] close(29 [pid 5525] close(5 [pid 5526] close(11 [pid 5525] <... close resumed>) = 0 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] <... mkdir resumed>) = 0 [pid 5526] close(12 [pid 5525] close(6 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] close(13 [pid 5525] close(7 [pid 5523] exit_group(0 [pid 5051] getdents64(3, [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] +++ exited with 0 +++ [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5527] symlink(NULL, NULL [pid 5526] close(14 [pid 5525] close(8 [pid 5523] <... exit_group resumed>) = ? [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5527] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5526] close(15 [pid 5525] close(9 [pid 5527] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] <... mount resumed>) = 0 [pid 5526] close(16 [pid 5525] close(10 [pid 5051] <... close resumed>) = 0 [pid 5527] open(NULL, O_RDONLY [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] +++ exited with 0 +++ [pid 5051] rmdir("./78" [pid 5527] <... open resumed>) = -1 EFAULT (Bad address) [pid 5526] close(17 [pid 5525] close(11 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] <... rmdir resumed>) = 0 [pid 5527] close(3 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5052] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5525] close(12 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] <... close resumed>) = 0 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5525] close(13) = -1 EBADF (Bad file descriptor) [pid 5527] close(4 [pid 5526] close(18 [pid 5525] close(14 [pid 5052] <... openat resumed>) = 3 [pid 5527] <... close resumed>) = 0 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./79", 0777 [pid 5527] close(5 [pid 5526] close(19 [pid 5525] close(15 [pid 5527] <... close resumed>) = 0 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(6 [pid 5525] close(16 [pid 5052] newfstatat(3, "", [pid 5526] close(20 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(7) = -1 EBADF (Bad file descriptor) [pid 5525] close(17 [pid 5527] close(8) = -1 EBADF (Bad file descriptor) [pid 5527] close(9 [pid 5526] close(21 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(10 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(11 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(3, [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(12 [pid 5526] close(22 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(13) = -1 EBADF (Bad file descriptor) [pid 5527] close(14) = -1 EBADF (Bad file descriptor) [pid 5527] close(15 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] close(16 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... mkdir resumed>) = 0 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] close(23 [pid 5527] close(17) = -1 EBADF (Bad file descriptor) [pid 5527] close(18 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] close(24 [pid 5053] newfstatat(3, "", [pid 5052] newfstatat(AT_FDCWD, "./81/binderfs", [pid 5527] close(19 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] close(25 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5527] close(20 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(18 [pid 5053] getdents64(3, [pid 5052] unlink("./81/binderfs" [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] close(26 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(21 [pid 5525] close(19 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(22 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... unlink resumed>) = 0 [pid 5525] close(20 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] close(27 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(3 [pid 5527] close(23 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(21 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./75/binderfs", [pid 5052] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5527] close(24 [pid 5526] close(28 [pid 5525] close(22 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(23 [pid 5526] close(29 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(24 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] exit_group(0 [pid 5525] close(25 [pid 5052] newfstatat(AT_FDCWD, "./81/file0", [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(25 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(26 [pid 5526] <... exit_group resumed>) = ? [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] close(26 [pid 5053] unlink("./75/binderfs" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] +++ exited with 0 +++ [pid 5525] close(27 [pid 5052] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5528 attached [pid 5527] close(27 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5528] set_robust_list(0x5555566e0760, 24 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(28 [pid 5527] close(28) = -1 EBADF (Bad file descriptor) [pid 5528] <... set_robust_list resumed>) = 0 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 81 [pid 5528] chdir("./79" [pid 5527] close(29 [pid 5525] close(29 [pid 5053] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 4 [pid 5528] <... chdir resumed>) = 0 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5527] exit_group(0 [pid 5525] exit_group(0 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5528] <... prctl resumed>) = 0 [pid 5527] <... exit_group resumed>) = ? [pid 5525] <... exit_group resumed>) = ? [pid 5528] setpgid(0, 0) = 0 [pid 5053] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] getdents64(4, [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5528] <... openat resumed>) = 3 [pid 5053] newfstatat(AT_FDCWD, "./75/file0", [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5527] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(4, [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5528] write(3, "1000", 4 [pid 5053] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] close(4) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5528] <... write resumed>) = 4 [pid 5052] rmdir("./81/file0" [pid 5050] newfstatat(3, "", [pid 5528] close(3 [pid 5053] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... rmdir resumed>) = 0 [pid 5528] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5528] symlink("/dev/binderfs", "./binderfs" [pid 5053] newfstatat(4, "", [pid 5052] getdents64(3, [pid 5049] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5528] <... symlink resumed>) = 0 [pid 5525] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(3, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5528] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] getdents64(4, [pid 5052] close(3 [pid 5049] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5528] <... socket resumed>) = 3 [pid 5052] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... openat resumed>) = 3 [pid 5528] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] rmdir("./81" [pid 5050] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(3, "", [pid 5528] <... socket resumed>) = 4 [pid 5053] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(AT_FDCWD, "./74/binderfs", [pid 5053] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5528] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] <... close resumed>) = 0 [pid 5049] getdents64(3, [pid 5528] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] rmdir("./75/file0" [pid 5050] unlink("./74/binderfs" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5528] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] unlink("./75/binderfs" [pid 5528] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] getdents64(3, [pid 5052] mkdir("./82", 0777 [pid 5049] <... unlink resumed>) = 0 [pid 5048] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5528] memfd_create("syzkaller", 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5528] <... memfd_create resumed>) = 5 [pid 5053] close(3 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... close resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] rmdir("./75" [pid 5052] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./75/file0", [pid 5048] <... openat resumed>) = 3 [pid 5050] newfstatat(AT_FDCWD, "./74/file0", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5528] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(3, "", [pid 5528] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5528] mkdir("./file0", 000 [pid 5050] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... openat resumed>) = 4 [pid 5528] <... mkdir resumed>) = 0 [pid 5053] mkdir("./76", 0777 [pid 5052] close(3 [pid 5050] <... openat resumed>) = 4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5528] symlink(NULL, NULL [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5049] newfstatat(4, "", [pid 5528] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5528] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... openat resumed>) = 3 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] getdents64(4, [pid 5048] getdents64(3, [pid 5528] <... mount resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] getdents64(4, [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(4, [pid 5049] close(4) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] rmdir("./75/file0" [pid 5050] getdents64(4, [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] <... rmdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5528] open(NULL, O_RDONLY [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] close(4 [pid 5049] getdents64(3, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5528] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] close(3 [pid 5050] <... close resumed>) = 0 [pid 5528] close(3 [pid 5050] rmdir("./74/file0" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5528] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5049] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5528] close(4 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./73/binderfs", [pid 5528] <... close resumed>) = 0 [pid 5050] getdents64(3, [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 84 [pid 5528] close(5 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] rmdir("./75" [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5529 attached [pid 5050] close(3 [pid 5529] set_robust_list(0x5555566e0760, 24 [pid 5528] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] unlink("./73/binderfs") = 0 [pid 5528] close(6 [pid 5048] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5529] <... set_robust_list resumed>) = 0 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./74" [pid 5048] <... umount2 resumed>) = 0 [pid 5529] chdir("./82" [pid 5528] close(7) = -1 EBADF (Bad file descriptor) [pid 5049] mkdir("./76", 0777 [pid 5048] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5530 attached [pid 5529] <... chdir resumed>) = 0 [pid 5528] close(8 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5530] set_robust_list(0x5555566e0760, 24 [pid 5529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 78 [pid 5050] mkdir("./75", 0777 [pid 5529] <... prctl resumed>) = 0 [pid 5528] close(9 [pid 5530] <... set_robust_list resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] newfstatat(AT_FDCWD, "./73/file0", [pid 5530] chdir("./76" [pid 5529] setpgid(0, 0 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5528] close(10) = -1 EBADF (Bad file descriptor) [pid 5530] <... chdir resumed>) = 0 [pid 5528] close(11 [pid 5530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5530] <... prctl resumed>) = 0 [pid 5528] close(12 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5530] setpgid(0, 0 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] <... setpgid resumed>) = 0 [pid 5528] close(13 [pid 5049] close(3 [pid 5048] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5529] <... setpgid resumed>) = 0 [pid 5528] close(14 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5530] <... openat resumed>) = 3 [pid 5529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(4, "", [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5528] close(15 [pid 5529] <... openat resumed>) = 3 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5530] write(3, "1000", 4 [pid 5528] close(16 [pid 5048] getdents64(4, [pid 5529] write(3, "1000", 4 [pid 5530] <... write resumed>) = 4 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5530] close(3 [pid 5528] close(17 [pid 5530] <... close resumed>) = 0 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(4, [pid 5530] symlink("/dev/binderfs", "./binderfs" [pid 5528] close(18 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5530] <... symlink resumed>) = 0 [pid 5529] <... write resumed>) = 4 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(4 [pid 5530] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5529] close(3 [pid 5528] close(19 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] <... close resumed>) = 0 ./strace-static-x86_64: Process 5531 attached [pid 5530] <... socket resumed>) = 3 [pid 5529] <... close resumed>) = 0 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] rmdir("./73/file0" [pid 5531] set_robust_list(0x5555566e0760, 24 [pid 5530] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5529] symlink("/dev/binderfs", "./binderfs" [pid 5528] close(20 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 78 [pid 5048] <... rmdir resumed>) = 0 [pid 5531] <... set_robust_list resumed>) = 0 [pid 5530] <... socket resumed>) = 4 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(3, [pid 5531] chdir("./76" [pid 5528] close(21 [pid 5530] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5531] <... chdir resumed>) = 0 [pid 5530] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5528] close(22 [pid 5050] close(3 [pid 5048] close(3 [pid 5531] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5530] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5529] <... symlink resumed>) = 0 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... prctl resumed>) = 0 [pid 5530] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5529] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5528] close(23 [pid 5050] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5531] setpgid(0, 0 [pid 5530] memfd_create("syzkaller", 0 [pid 5529] <... socket resumed>) = 3 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5531] <... setpgid resumed>) = 0 [pid 5528] close(24 [pid 5531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5530] <... memfd_create resumed>) = 5 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(25) = -1 EBADF (Bad file descriptor) [pid 5528] close(26) = -1 EBADF (Bad file descriptor) [pid 5528] close(27) = -1 EBADF (Bad file descriptor) [pid 5528] close(28) = -1 EBADF (Bad file descriptor) [pid 5530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5528] close(29./strace-static-x86_64: Process 5532 attached [pid 5530] <... mmap resumed>) = 0x7f1263f98000 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] rmdir("./73" [pid 5529] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5531] <... openat resumed>) = 3 [pid 5530] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5528] exit_group(0 [pid 5531] write(3, "1000", 4 [pid 5530] mkdir("./file0", 000 [pid 5528] <... exit_group resumed>) = ? [pid 5532] set_robust_list(0x5555566e0760, 24 [pid 5531] <... write resumed>) = 4 [pid 5530] <... mkdir resumed>) = 0 [pid 5529] <... socket resumed>) = 4 [pid 5528] +++ exited with 0 +++ [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 77 [pid 5048] <... rmdir resumed>) = 0 [pid 5531] close(3 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5531] <... close resumed>) = 0 [pid 5532] <... set_robust_list resumed>) = 0 [pid 5531] symlink("/dev/binderfs", "./binderfs" [pid 5529] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] mkdir("./74", 0777 [pid 5532] chdir("./75" [pid 5531] <... symlink resumed>) = 0 [pid 5051] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5529] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5532] <... chdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... mkdir resumed>) = 0 [pid 5532] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5531] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5530] symlink(NULL, NULL [pid 5529] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5532] <... prctl resumed>) = 0 [pid 5531] <... socket resumed>) = 3 [pid 5530] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5529] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5532] setpgid(0, 0 [pid 5531] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5530] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] newfstatat(3, "", [pid 5532] <... setpgid resumed>) = 0 [pid 5531] <... socket resumed>) = 4 [pid 5530] <... mount resumed>) = 0 [pid 5529] memfd_create("syzkaller", 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5531] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] getdents64(3, [pid 5531] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5531] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5530] open(NULL, O_RDONLY [pid 5532] <... openat resumed>) = 3 [pid 5531] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5530] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5532] write(3, "1000", 4 [pid 5531] memfd_create("syzkaller", 0 [pid 5530] close(3 [pid 5529] <... memfd_create resumed>) = 5 [pid 5532] <... write resumed>) = 4 [pid 5531] <... memfd_create resumed>) = 5 [pid 5530] <... close resumed>) = 0 [pid 5529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 3 [pid 5532] close(3 [pid 5531] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] newfstatat(AT_FDCWD, "./79/binderfs", [pid 5532] <... close resumed>) = 0 [pid 5531] <... mmap resumed>) = 0x7f1263f98000 [pid 5530] close(4 [pid 5529] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5532] symlink("/dev/binderfs", "./binderfs" [pid 5531] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5530] <... close resumed>) = 0 [pid 5051] unlink("./79/binderfs" [pid 5532] <... symlink resumed>) = 0 [pid 5531] mkdir("./file0", 000 [pid 5051] <... unlink resumed>) = 0 [pid 5532] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5531] <... mkdir resumed>) = 0 [pid 5530] close(5 [pid 5529] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5532] <... socket resumed>) = 3 [pid 5048] close(3 [pid 5532] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5530] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5532] <... socket resumed>) = 4 [pid 5530] close(6 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(7 [pid 5051] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] symlink(NULL, NULL [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5530] close(8 [pid 5051] <... umount2 resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5531] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5530] close(9 [pid 5532] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5531] <... mount resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5530] close(10 [pid 5532] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5530] close(11 [pid 5051] newfstatat(AT_FDCWD, "./79/file0", [pid 5532] memfd_create("syzkaller", 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5531] open(NULL, O_RDONLY [pid 5530] close(12 [pid 5531] <... open resumed>) = -1 EFAULT (Bad address) [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] close(3 [pid 5530] close(13 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] <... close resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... memfd_create resumed>) = 5 [pid 5529] mkdir("./file0", 000 [pid 5051] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5530] close(14 [pid 5531] close(4 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5531] <... close resumed>) = 0 [pid 5530] close(15 [pid 5529] <... mkdir resumed>) = 0 [pid 5531] close(5 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... mmap resumed>) = 0x7f1263f98000 [pid 5532] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5531] <... close resumed>) = 0 [pid 5530] close(16 [pid 5051] newfstatat(4, "", [pid 5532] mkdir("./file0", 000 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] symlink(NULL, NULL [pid 5531] close(6 [pid 5530] close(17 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... mkdir resumed>) = 0 [pid 5531] close(7 [pid 5530] close(18 [pid 5051] getdents64(4, [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5533 attached [pid 5531] close(8 [pid 5530] close(19 [pid 5529] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5533] set_robust_list(0x5555566e0760, 24 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5533] <... set_robust_list resumed>) = 0 [pid 5531] close(9 [pid 5530] close(20 [pid 5051] getdents64(4, [pid 5533] chdir("./74" [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... mount resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5531] close(10 [pid 5533] <... chdir resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(21 [pid 5051] close(4 [pid 5533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5532] symlink(NULL, NULL [pid 5531] close(11 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5533] <... prctl resumed>) = 0 [pid 5532] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(22 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 76 [pid 5533] setpgid(0, 0 [pid 5531] close(12 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./79/file0" [pid 5533] <... setpgid resumed>) = 0 [pid 5532] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(23 [pid 5051] <... rmdir resumed>) = 0 [pid 5533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5531] close(13 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] open(NULL, O_RDONLY [pid 5530] close(24) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(25 [pid 5532] <... mount resumed>) = 0 [pid 5531] close(14 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... open resumed>) = -1 EFAULT (Bad address) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(26 [pid 5529] close(3 [pid 5051] getdents64(3, [pid 5531] close(15 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(27 [pid 5529] <... close resumed>) = 0 [pid 5533] <... openat resumed>) = 3 [pid 5531] close(16 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5533] write(3, "1000", 4 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(28 [pid 5051] close(3 [pid 5533] <... write resumed>) = 4 [pid 5531] close(17 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5532] open(NULL, O_RDONLY [pid 5529] close(4 [pid 5533] close(3 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(29 [pid 5533] <... close resumed>) = 0 [pid 5531] close(18 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = 0 [pid 5051] rmdir("./79" [pid 5533] symlink("/dev/binderfs", "./binderfs" [pid 5532] <... open resumed>) = -1 EFAULT (Bad address) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] exit_group(0 [pid 5051] <... rmdir resumed>) = 0 [pid 5533] <... symlink resumed>) = 0 [pid 5531] close(19 [pid 5530] <... exit_group resumed>) = ? [pid 5533] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./80", 0777 [pid 5533] <... socket resumed>) = 3 [pid 5531] close(20) = -1 EBADF (Bad file descriptor) [pid 5051] <... mkdir resumed>) = 0 [pid 5531] close(21) = -1 EBADF (Bad file descriptor) [pid 5531] close(22) = -1 EBADF (Bad file descriptor) [pid 5533] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5532] close(3 [pid 5531] close(23 [pid 5530] +++ exited with 0 +++ [pid 5529] close(5 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5533] <... socket resumed>) = 4 [pid 5532] <... close resumed>) = 0 [pid 5529] <... close resumed>) = 0 [pid 5533] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5532] close(4 [pid 5529] close(6 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5533] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5532] <... close resumed>) = 0 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5533] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5532] close(5 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(7 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5533] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5531] close(24 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5533] memfd_create("syzkaller", 0 [pid 5532] <... close resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(8 [pid 5053] <... openat resumed>) = 3 [pid 5051] close(3 [pid 5532] close(6 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... memfd_create resumed>) = 5 [pid 5531] close(25 [pid 5529] close(9 [pid 5053] newfstatat(3, "", [pid 5051] <... close resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5533] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5531] close(26 [pid 5529] close(10 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(11) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5533] <... mmap resumed>) = 0x7f1263f98000 [pid 5532] close(7 [pid 5531] close(27 [pid 5529] close(12 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(8 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] close(28 [pid 5529] close(13 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5532] close(9 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./76/binderfs", [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(14 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5533] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5532] close(10 [pid 5531] close(29 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] mkdir("./file0", 000 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(15 [pid 5053] unlink("./76/binderfs" [pid 5533] <... mkdir resumed>) = 0 [pid 5532] close(11 [pid 5531] exit_group(0 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5531] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5534 attached [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(16 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 82 [pid 5532] close(12 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] set_robust_list(0x5555566e0760, 24 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] +++ exited with 0 +++ [pid 5529] close(17 [pid 5053] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] <... set_robust_list resumed>) = 0 [pid 5533] symlink(NULL, NULL [pid 5532] close(13 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5534] chdir("./80" [pid 5533] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(18 [pid 5053] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] <... chdir resumed>) = 0 [pid 5533] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5532] close(14 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5534] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(19 [pid 5533] <... mount resumed>) = 0 [pid 5532] close(15 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./76/file0", [pid 5534] <... prctl resumed>) = 0 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(20 [pid 5049] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] setpgid(0, 0 [pid 5532] close(16 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5534] <... setpgid resumed>) = 0 [pid 5533] open(NULL, O_RDONLY [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(21 [pid 5053] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5533] <... open resumed>) = -1 EFAULT (Bad address) [pid 5532] close(17 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5533] close(3 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(22 [pid 5053] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] newfstatat(3, "", [pid 5534] <... openat resumed>) = 3 [pid 5533] <... close resumed>) = 0 [pid 5532] close(18 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(23 [pid 5049] getdents64(3, [pid 5534] write(3, "1000", 4 [pid 5533] close(4 [pid 5532] close(19 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5534] <... write resumed>) = 4 [pid 5533] <... close resumed>) = 0 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(24 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] close(3 [pid 5533] close(5 [pid 5532] close(20 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5534] <... close resumed>) = 0 [pid 5533] <... close resumed>) = 0 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(25 [pid 5053] getdents64(4, [pid 5049] newfstatat(AT_FDCWD, "./76/binderfs", [pid 5534] symlink("/dev/binderfs", "./binderfs" [pid 5533] close(6 [pid 5532] close(21 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(26) = -1 EBADF (Bad file descriptor) [pid 5532] close(22 [pid 5529] close(27 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(23 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] close(7 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(28 [pid 5053] getdents64(4, [pid 5049] unlink("./76/binderfs" [pid 5534] <... symlink resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(24 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5533] close(8 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(29 [pid 5053] close(4 [pid 5534] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(25 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5049] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5533] close(9 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] exit_group(0 [pid 5053] rmdir("./76/file0" [pid 5534] <... socket resumed>) = 3 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(26 [pid 5529] <... exit_group resumed>) = ? [pid 5053] <... rmdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5534] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5533] close(10 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5533] close(11 [pid 5532] close(27 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5049] newfstatat(AT_FDCWD, "./76/file0", [pid 5533] close(12 [pid 5532] close(28 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5534] <... socket resumed>) = 4 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5049] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5533] close(13 [pid 5532] close(29 [pid 5053] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5534] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./76" [pid 5049] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5534] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5533] close(14 [pid 5532] exit_group(0 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] close(15) = -1 EBADF (Bad file descriptor) [pid 5533] close(16) = -1 EBADF (Bad file descriptor) [pid 5533] close(17 [pid 5049] newfstatat(4, "", [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5534] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5533] close(18 [pid 5532] <... exit_group resumed>) = ? [pid 5049] getdents64(4, [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./77", 0777 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5533] close(19 [pid 5053] <... mkdir resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5533] close(20) = -1 EBADF (Bad file descriptor) [pid 5534] memfd_create("syzkaller", 0 [pid 5533] close(21) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5533] close(22 [pid 5049] close(4 [pid 5534] <... memfd_create resumed>) = 5 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5533] close(23) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./76/file0" [pid 5533] close(24 [pid 5049] <... rmdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5529] +++ exited with 0 +++ [pid 5534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5533] close(25) = -1 EBADF (Bad file descriptor) [pid 5533] close(26 [pid 5053] <... openat resumed>) = 3 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] close(27 [pid 5049] getdents64(3, [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5533] close(28) = -1 EBADF (Bad file descriptor) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] close(3 [pid 5533] close(29) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5049] <... close resumed>) = 0 [pid 5533] exit_group(0) = ? [pid 5053] <... close resumed>) = 0 [pid 5049] rmdir("./76" [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... rmdir resumed>) = 0 [pid 5532] +++ exited with 0 +++ [pid 5049] mkdir("./77", 0777 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... mkdir resumed>) = 0 [pid 5534] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5534] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5534] mkdir("./file0", 000 [pid 5052] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5535 attached [pid 5533] +++ exited with 0 +++ [pid 5052] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5535] set_robust_list(0x5555566e0760, 24 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 79 [pid 5052] newfstatat(3, "", [pid 5050] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] close(3 [pid 5535] <... set_robust_list resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5535] chdir("./77" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5534] <... mkdir resumed>) = 0 [pid 5052] getdents64(3, [pid 5050] newfstatat(3, "", [pid 5534] symlink(NULL, NULL [pid 5535] <... chdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5535] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5534] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5534] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(3, [pid 5535] <... prctl resumed>) = 0 [pid 5535] setpgid(0, 0) = 0 [pid 5534] <... mount resumed>) = 0 [pid 5048] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] newfstatat(AT_FDCWD, "./82/binderfs", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5535] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5536 attached [pid 5535] write(3, "1000", 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 3 [pid 5536] set_robust_list(0x5555566e0760, 24 [pid 5535] <... write resumed>) = 4 [pid 5534] open(NULL, O_RDONLY [pid 5050] newfstatat(AT_FDCWD, "./75/binderfs", [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 79 [pid 5534] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5534] close(3 [pid 5050] unlink("./75/binderfs" [pid 5534] <... close resumed>) = 0 [pid 5534] close(4 [pid 5050] <... unlink resumed>) = 0 [pid 5050] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] <... close resumed>) = 0 [pid 5048] newfstatat(3, "", [pid 5536] <... set_robust_list resumed>) = 0 [pid 5535] close(3 [pid 5534] close(5 [pid 5050] <... umount2 resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5536] chdir("./77" [pid 5535] <... close resumed>) = 0 [pid 5536] <... chdir resumed>) = 0 [pid 5535] symlink("/dev/binderfs", "./binderfs" [pid 5050] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, [pid 5536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5535] <... symlink resumed>) = 0 [pid 5534] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5536] <... prctl resumed>) = 0 [pid 5534] close(6 [pid 5048] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] setpgid(0, 0 [pid 5535] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./82/binderfs" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5536] <... setpgid resumed>) = 0 [pid 5535] <... socket resumed>) = 3 [pid 5534] close(7 [pid 5052] <... unlink resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./74/binderfs", [pid 5536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5534] close(8 [pid 5052] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5536] <... openat resumed>) = 3 [pid 5535] <... socket resumed>) = 4 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5535] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5534] close(9 [pid 5052] <... umount2 resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./75/file0", [pid 5048] unlink("./74/binderfs" [pid 5536] write(3, "1000", 4 [pid 5535] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... write resumed>) = 4 [pid 5535] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5534] close(10 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5536] close(3 [pid 5535] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] <... close resumed>) = 0 [pid 5534] close(11 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5536] symlink("/dev/binderfs", "./binderfs" [pid 5535] memfd_create("syzkaller", 0 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./82/file0", [pid 5050] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] <... symlink resumed>) = 0 [pid 5535] <... memfd_create resumed>) = 5 [pid 5534] close(12 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5048] <... umount2 resumed>) = 0 [pid 5535] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(4, "", [pid 5535] <... mmap resumed>) = 0x7f1263f98000 [pid 5534] close(13 [pid 5052] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5535] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5535] mkdir("./file0", 000 [pid 5534] close(14 [pid 5052] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] newfstatat(AT_FDCWD, "./74/file0", [pid 5535] <... mkdir resumed>) = 0 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5534] close(15) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] close(16 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5534] close(17 [pid 5052] newfstatat(4, "", [pid 5048] <... openat resumed>) = 4 [pid 5535] symlink(NULL, NULL [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5535] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5534] close(18 [pid 5052] getdents64(4, [pid 5048] newfstatat(4, "", [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5534] close(19 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5535] <... mount resumed>) = 0 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5534] close(20) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5052] close(4 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5534] close(21 [pid 5052] <... close resumed>) = 0 [pid 5048] getdents64(4, [pid 5535] open(NULL, O_RDONLY [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./82/file0" [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5535] <... open resumed>) = -1 EFAULT (Bad address) [pid 5534] close(22 [pid 5052] <... rmdir resumed>) = 0 [pid 5048] close(4 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(3 [pid 5534] close(23 [pid 5048] <... close resumed>) = 0 [pid 5536] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5535] <... close resumed>) = 0 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5534] close(24 [pid 5052] getdents64(3, [pid 5536] <... socket resumed>) = 3 [pid 5535] close(4 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] rmdir("./74/file0" [pid 5536] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5535] <... close resumed>) = 0 [pid 5534] close(25 [pid 5052] close(3 [pid 5050] getdents64(4, [pid 5536] <... socket resumed>) = 4 [pid 5535] close(5 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5536] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5535] <... close resumed>) = 0 [pid 5534] close(26 [pid 5052] rmdir("./82" [pid 5050] close(4 [pid 5536] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... close resumed>) = 0 [pid 5536] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5050] rmdir("./75/file0" [pid 5536] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5535] close(6 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5536] memfd_create("syzkaller", 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(27 [pid 5050] getdents64(3, [pid 5536] <... memfd_create resumed>) = 5 [pid 5535] close(7 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(3, [pid 5536] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(28 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5536] <... mmap resumed>) = 0x7f1263f98000 [pid 5535] close(8 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5048] close(3 [pid 5536] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(29 [pid 5052] mkdir("./83", 0777 [pid 5050] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5536] mkdir("./file0", 000 [pid 5535] close(9 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5050] rmdir("./75" [pid 5048] rmdir("./74" [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] exit_group(0 [pid 5536] <... mkdir resumed>) = 0 [pid 5535] close(10 [pid 5048] <... rmdir resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] symlink(NULL, NULL [pid 5050] <... rmdir resumed>) = 0 [pid 5535] close(11 [pid 5536] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5534] <... exit_group resumed>) = ? [pid 5050] mkdir("./76", 0777 [pid 5536] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5535] close(12 [pid 5052] <... openat resumed>) = 3 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] mkdir("./75", 0777 [pid 5536] <... mount resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... mkdir resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5535] close(13 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(14 [pid 5050] <... openat resumed>) = 3 [pid 5536] open(NULL, O_RDONLY [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5535] close(15 [pid 5052] <... close resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5535] close(16 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... close resumed>) = 0 [pid 5536] <... open resumed>) = -1 EFAULT (Bad address) [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5535] close(17) = -1 EBADF (Bad file descriptor) [pid 5535] close(18) = -1 EBADF (Bad file descriptor) [pid 5535] close(19) = -1 EBADF (Bad file descriptor) [pid 5535] close(20 [pid 5048] <... openat resumed>) = 3 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5535] close(21 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5535] close(22 [pid 5051] <... openat resumed>) = 3 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3./strace-static-x86_64: Process 5537 attached [pid 5535] close(23 [pid 5051] newfstatat(3, "", [pid 5048] <... close resumed>) = 0 [pid 5537] set_robust_list(0x5555566e0760, 24 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 85 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5535] close(24 [pid 5537] <... set_robust_list resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] chdir("./83" [pid 5536] close(3 [pid 5535] close(25 [pid 5051] getdents64(3, [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5535] close(26 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./80/binderfs", [pid 5537] <... chdir resumed>) = 0 [pid 5535] close(27 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5537] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./80/binderfs" [pid 5536] <... close resumed>) = 0 [pid 5535] close(28 [pid 5051] <... unlink resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... prctl resumed>) = 0 [pid 5535] close(29 [pid 5051] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5537] setpgid(0, 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5539 attached [pid 5537] <... setpgid resumed>) = 0 [pid 5536] close(4 [pid 5535] exit_group(0./strace-static-x86_64: Process 5538 attached [pid 5537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5535] <... exit_group resumed>) = ? [pid 5539] set_robust_list(0x5555566e0760, 24 [pid 5536] <... close resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 78 [pid 5538] set_robust_list(0x5555566e0760, 24 [pid 5539] <... set_robust_list resumed>) = 0 [pid 5537] <... openat resumed>) = 3 [pid 5536] close(5 [pid 5051] <... umount2 resumed>) = 0 [pid 5538] <... set_robust_list resumed>) = 0 [pid 5539] chdir("./76" [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 77 [pid 5536] <... close resumed>) = 0 [pid 5536] close(6 [pid 5538] chdir("./75" [pid 5537] write(3, "1000", 4 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5537] <... write resumed>) = 4 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5538] <... chdir resumed>) = 0 [pid 5539] <... chdir resumed>) = 0 [pid 5537] close(3 [pid 5536] close(7 [pid 5051] newfstatat(AT_FDCWD, "./80/file0", [pid 5539] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5537] <... close resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5539] <... prctl resumed>) = 0 [pid 5537] symlink("/dev/binderfs", "./binderfs" [pid 5536] close(8 [pid 5051] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5539] setpgid(0, 0 [pid 5537] <... symlink resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5538] <... prctl resumed>) = 0 [pid 5536] close(9 [pid 5051] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5538] setpgid(0, 0 [pid 5539] <... setpgid resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5538] <... setpgid resumed>) = 0 [pid 5537] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5536] close(10 [pid 5051] newfstatat(4, "", [pid 5538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5537] <... socket resumed>) = 3 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5538] <... openat resumed>) = 3 [pid 5535] +++ exited with 0 +++ [pid 5051] getdents64(4, [pid 5538] write(3, "1000", 4 [pid 5537] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5536] close(11 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5538] <... write resumed>) = 4 [pid 5537] <... socket resumed>) = 4 [pid 5051] getdents64(4, [pid 5538] close(3 [pid 5539] <... openat resumed>) = 3 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = 0 [pid 5537] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5538] symlink("/dev/binderfs", "./binderfs" [pid 5539] write(3, "1000", 4 [pid 5537] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5536] close(12 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] close(4 [pid 5538] <... symlink resumed>) = 0 [pid 5539] <... write resumed>) = 4 [pid 5537] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... close resumed>) = 0 [pid 5539] close(3 [pid 5053] <... openat resumed>) = 3 [pid 5051] rmdir("./80/file0" [pid 5537] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5538] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5537] memfd_create("syzkaller", 0 [pid 5538] <... socket resumed>) = 3 [pid 5537] <... memfd_create resumed>) = 5 [pid 5053] newfstatat(3, "", [pid 5538] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5538] <... socket resumed>) = 4 [pid 5537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] getdents64(3, [pid 5051] <... rmdir resumed>) = 0 [pid 5538] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5539] <... close resumed>) = 0 [pid 5536] close(13 [pid 5538] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5539] symlink("/dev/binderfs", "./binderfs" [pid 5538] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5537] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] getdents64(3, [pid 5538] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5539] <... symlink resumed>) = 0 [pid 5537] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5538] memfd_create("syzkaller", 0 [pid 5539] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5537] mkdir("./file0", 000 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] close(3 [pid 5536] close(14 [pid 5539] <... socket resumed>) = 3 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./77/binderfs", [pid 5051] <... close resumed>) = 0 [pid 5538] <... memfd_create resumed>) = 5 [pid 5539] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5537] <... mkdir resumed>) = 0 [pid 5536] close(15 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5539] <... socket resumed>) = 4 [pid 5051] rmdir("./80" [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5539] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5537] symlink(NULL, NULL [pid 5536] close(16 [pid 5053] unlink("./77/binderfs" [pid 5538] <... mmap resumed>) = 0x7f1263f98000 [pid 5539] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5537] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5538] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5539] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5536] close(17 [pid 5539] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] mkdir("./file0", 000 [pid 5537] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5538] <... mkdir resumed>) = 0 [pid 5539] memfd_create("syzkaller", 0 [pid 5537] <... mount resumed>) = 0 [pid 5536] close(18) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] mkdir("./81", 0777 [pid 5536] close(19 [pid 5051] <... mkdir resumed>) = 0 [pid 5538] symlink(NULL, NULL [pid 5539] <... memfd_create resumed>) = 5 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5538] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5537] open(NULL, O_RDONLY [pid 5536] close(20 [pid 5538] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5537] <... open resumed>) = -1 EFAULT (Bad address) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5538] <... mount resumed>) = 0 [pid 5539] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5537] close(3 [pid 5536] close(21 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5539] mkdir("./file0", 000 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(22 [pid 5053] newfstatat(AT_FDCWD, "./77/file0", [pid 5538] open(NULL, O_RDONLY [pid 5537] <... close resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5538] <... open resumed>) = -1 EFAULT (Bad address) [pid 5537] close(4 [pid 5536] close(23 [pid 5053] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5538] close(3 [pid 5537] <... close resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5538] <... close resumed>) = 0 [pid 5536] close(24 [pid 5051] close(3 [pid 5538] close(4 [pid 5537] close(5 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... close resumed>) = 0 [pid 5538] <... close resumed>) = 0 [pid 5537] <... close resumed>) = 0 [pid 5536] close(25 [pid 5053] <... openat resumed>) = 4 [pid 5538] close(5 [pid 5539] <... mkdir resumed>) = 0 [pid 5537] close(6 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5538] <... close resumed>) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(26 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5537] close(7 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(27 [pid 5538] close(6 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5536] close(28 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(29 [pid 5538] close(7 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(8 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] exit_group(0 [pid 5053] close(4 [pid 5538] close(8 [pid 5539] symlink(NULL, NULL [pid 5537] close(9 [pid 5536] <... exit_group resumed>) = ? [pid 5053] <... close resumed>) = 0 ./strace-static-x86_64: Process 5540 attached [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./77/file0" [pid 5540] set_robust_list(0x5555566e0760, 24 [pid 5538] close(9 [pid 5537] close(10 [pid 5053] <... rmdir resumed>) = 0 [pid 5540] <... set_robust_list resumed>) = 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 83 [pid 5539] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5540] chdir("./81" [pid 5538] close(10 [pid 5539] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5537] close(11 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... chdir resumed>) = 0 [pid 5538] close(11 [pid 5537] close(12 [pid 5053] close(3 [pid 5540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... mount resumed>) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5540] <... prctl resumed>) = 0 [pid 5538] close(12 [pid 5537] close(13 [pid 5540] setpgid(0, 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./77" [pid 5539] open(NULL, O_RDONLY [pid 5536] +++ exited with 0 +++ [pid 5538] close(13 [pid 5537] close(14 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(15 [pid 5538] close(14 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... setpgid resumed>) = 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(16 [pid 5540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5538] close(15 [pid 5539] <... open resumed>) = -1 EFAULT (Bad address) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./78", 0777 [pid 5049] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5540] <... openat resumed>) = 3 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(3 [pid 5537] close(17 [pid 5538] close(16 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = 0 [pid 5537] close(18 [pid 5540] write(3, "1000", 4 [pid 5538] close(17 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... write resumed>) = 4 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(19 [pid 5540] close(3 [pid 5538] close(18 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(4 [pid 5537] close(20 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5540] symlink("/dev/binderfs", "./binderfs" [pid 5538] close(19 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(21 [pid 5540] <... symlink resumed>) = 0 [pid 5538] close(20 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(22 [pid 5540] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5538] close(21 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5540] <... socket resumed>) = 3 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = 0 [pid 5537] close(23 [pid 5538] close(22 [pid 5539] close(5 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(24 [pid 5540] <... socket resumed>) = 4 [pid 5538] close(23 [pid 5539] <... close resumed>) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5540] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(25 [pid 5540] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5538] close(24 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5540] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] close(26 [pid 5053] <... openat resumed>) = 3 [pid 5540] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5538] close(25 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5540] memfd_create("syzkaller", 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(6 [pid 5537] close(27 [pid 5538] close(26 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5540] <... memfd_create resumed>) = 5 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(7 [pid 5537] close(28 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5538] close(27 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(8 [pid 5537] close(29 [pid 5053] close(3 [pid 5540] <... mmap resumed>) = 0x7f1263f98000 [pid 5538] close(28 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5049] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5540] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(9 [pid 5537] exit_group(0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5540] mkdir("./file0", 000 [pid 5538] close(29 [pid 5049] newfstatat(AT_FDCWD, "./77/binderfs", [pid 5540] <... mkdir resumed>) = 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... exit_group resumed>) = ? [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5538] exit_group(0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./77/binderfs" [pid 5539] close(10) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5538] <... exit_group resumed>) = ? [pid 5540] symlink(NULL, NULL./strace-static-x86_64: Process 5541 attached ) = -1 EFAULT (Bad address) [pid 5539] close(11 [pid 5049] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 80 [pid 5541] set_robust_list(0x5555566e0760, 24 [pid 5539] close(12 [pid 5540] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... mount resumed>) = 0 [pid 5541] <... set_robust_list resumed>) = 0 [pid 5541] chdir("./78" [pid 5538] +++ exited with 0 +++ [pid 5539] close(13 [pid 5537] +++ exited with 0 +++ [pid 5540] open(NULL, O_RDONLY [pid 5049] <... umount2 resumed>) = 0 [pid 5540] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5540] close(3 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5049] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5540] <... close resumed>) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... restart_syscall resumed>) = 0 [pid 5540] close(4 [pid 5052] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./77/file0", [pid 5048] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5540] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] <... chdir resumed>) = 0 [pid 5540] close(5 [pid 5539] close(14 [pid 5052] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5540] <... close resumed>) = 0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 3 [pid 5539] close(15 [pid 5540] close(6 [pid 5049] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5539] close(16 [pid 5049] <... openat resumed>) = 4 [pid 5048] newfstatat(3, "", [pid 5541] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5540] close(7 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5541] <... prctl resumed>) = 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(17 [pid 5052] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5540] close(8 [pid 5541] setpgid(0, 0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(4, "", [pid 5541] <... setpgid resumed>) = 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(18 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, [pid 5540] close(9 [pid 5541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5540] close(10 [pid 5539] close(19 [pid 5052] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(4, [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5540] close(11 [pid 5539] close(20 [pid 5052] newfstatat(AT_FDCWD, "./83/binderfs", [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(12 [pid 5539] close(21 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] getdents64(4, [pid 5048] newfstatat(AT_FDCWD, "./75/binderfs", [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(13 [pid 5052] unlink("./83/binderfs" [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5049] close(4 [pid 5540] close(14 [pid 5049] <... close resumed>) = 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./77/file0" [pid 5048] unlink("./75/binderfs" [pid 5541] <... openat resumed>) = 3 [pid 5540] close(15 [pid 5052] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5539] close(22 [pid 5541] write(3, "1000", 4 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(23) = -1 EBADF (Bad file descriptor) [pid 5539] close(24 [pid 5541] <... write resumed>) = 4 [pid 5540] close(16 [pid 5052] <... umount2 resumed>) = 0 [pid 5048] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5541] close(3 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] <... close resumed>) = 0 [pid 5540] close(17 [pid 5539] close(25 [pid 5052] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(3, [pid 5048] <... umount2 resumed>) = 0 [pid 5541] symlink("/dev/binderfs", "./binderfs" [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5539] close(26) = -1 EBADF (Bad file descriptor) [pid 5541] <... symlink resumed>) = 0 [pid 5540] close(18 [pid 5052] newfstatat(AT_FDCWD, "./83/file0", [pid 5049] close(3 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5540] close(19 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5541] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] rmdir("./77" [pid 5048] newfstatat(AT_FDCWD, "./75/file0", [pid 5541] <... socket resumed>) = 3 [pid 5540] close(20 [pid 5539] close(27 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... rmdir resumed>) = 0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(28) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(21 [pid 5052] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5539] close(29) = -1 EBADF (Bad file descriptor) [pid 5540] close(22 [pid 5541] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] exit_group(0 [pid 5052] newfstatat(4, "", [pid 5048] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5539] <... exit_group resumed>) = ? [pid 5048] <... openat resumed>) = 4 [pid 5052] getdents64(4, [pid 5048] newfstatat(4, "", [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] mkdir("./78", 0777 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5541] <... socket resumed>) = 4 [pid 5540] close(23 [pid 5052] getdents64(4, [pid 5049] <... mkdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5541] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5541] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5540] close(24 [pid 5052] close(4 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5541] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5048] getdents64(4, [pid 5541] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5540] close(25 [pid 5052] rmdir("./83/file0" [pid 5541] memfd_create("syzkaller", 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5541] <... memfd_create resumed>) = 5 [pid 5540] close(26 [pid 5052] <... rmdir resumed>) = 0 [pid 5541] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(4 [pid 5541] <... mmap resumed>) = 0x7f1263f98000 [pid 5540] close(27 [pid 5048] <... close resumed>) = 0 [pid 5541] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] rmdir("./75/file0" [pid 5541] mkdir("./file0", 000 [pid 5540] close(28 [pid 5048] <... rmdir resumed>) = 0 [pid 5541] <... mkdir resumed>) = 0 [pid 5052] getdents64(3, [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5541] symlink(NULL, NULL [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(3, [pid 5541] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5049] <... openat resumed>) = 3 [pid 5541] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5540] close(29 [pid 5052] close(3 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5541] <... mount resumed>) = 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] close(3 [pid 5540] exit_group(0 [pid 5052] rmdir("./83" [pid 5049] close(3 [pid 5048] <... close resumed>) = 0 [pid 5541] open(NULL, O_RDONLY [pid 5052] <... rmdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] rmdir("./75" [pid 5541] <... open resumed>) = -1 EFAULT (Bad address) [pid 5540] <... exit_group resumed>) = ? [pid 5539] +++ exited with 0 +++ [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... rmdir resumed>) = 0 [pid 5541] close(3 [pid 5540] +++ exited with 0 +++ [pid 5541] <... close resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] mkdir("./76", 0777./strace-static-x86_64: Process 5542 attached [pid 5541] close(4 [pid 5052] mkdir("./84", 0777 [pid 5048] <... mkdir resumed>) = 0 [pid 5541] <... close resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5542] set_robust_list(0x5555566e0760, 24 [pid 5541] close(5 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 80 [pid 5541] <... close resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5542] <... set_robust_list resumed>) = 0 [pid 5541] close(6 [pid 5052] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 3 [pid 5542] chdir("./78" [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5542] <... chdir resumed>) = 0 [pid 5541] close(7 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... openat resumed>) = 3 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5542] <... prctl resumed>) = 0 [pid 5541] close(8 [pid 5051] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] newfstatat(3, "", [pid 5542] setpgid(0, 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5051] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5541] close(9 [pid 5052] <... close resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5542] <... setpgid resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... close resumed>) = 0 [pid 5542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5541] close(10 [pid 5050] getdents64(3, [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5542] <... openat resumed>) = 3 [pid 5541] close(11 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] write(3, "1000", 4 [pid 5541] close(12 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] <... write resumed>) = 4 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./81/binderfs", [pid 5542] close(3 [pid 5541] close(13 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5542] <... close resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./76/binderfs", [pid 5542] symlink("/dev/binderfs", "./binderfs" [pid 5541] close(14 [pid 5051] unlink("./81/binderfs" [pid 5542] <... symlink resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5542] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5541] close(15 [pid 5051] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] <... socket resumed>) = 3 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] unlink("./76/binderfs" [pid 5542] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5541] close(16 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 86 [pid 5051] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5544 attached [pid 5542] <... socket resumed>) = 4 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5541] close(17./strace-static-x86_64: Process 5543 attached [pid 5544] set_robust_list(0x5555566e0760, 24 [pid 5542] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... unlink resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 78 [pid 5544] <... set_robust_list resumed>) = 0 [pid 5543] set_robust_list(0x5555566e0760, 24 [pid 5542] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5541] close(18 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5544] chdir("./76" [pid 5543] <... set_robust_list resumed>) = 0 [pid 5542] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./81/file0", [pid 5543] chdir("./84" [pid 5542] memfd_create("syzkaller", 0 [pid 5541] close(19 [pid 5050] <... umount2 resumed>) = 0 [pid 5544] <... chdir resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5543] <... chdir resumed>) = 0 [pid 5542] <... memfd_create resumed>) = 5 [pid 5541] close(20 [pid 5050] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5544] <... prctl resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] setpgid(0, 0 [pid 5543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5542] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5541] close(21 [pid 5051] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5544] <... setpgid resumed>) = 0 [pid 5542] <... mmap resumed>) = 0x7f1263f98000 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./76/file0", [pid 5544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5543] <... prctl resumed>) = 0 [pid 5542] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5541] close(22 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] mkdir("./file0", 000 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] <... openat resumed>) = 3 [pid 5543] setpgid(0, 0 [pid 5542] <... mkdir resumed>) = 0 [pid 5541] close(23 [pid 5051] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5543] <... setpgid resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5544] write(3, "1000", 4 [pid 5543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5541] close(24 [pid 5051] newfstatat(4, "", [pid 5050] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5544] <... write resumed>) = 4 [pid 5543] <... openat resumed>) = 3 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5544] close(3 [pid 5542] symlink(NULL, NULL [pid 5541] close(25 [pid 5051] getdents64(4, [pid 5050] <... openat resumed>) = 4 [pid 5544] <... close resumed>) = 0 [pid 5542] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] newfstatat(4, "", [pid 5544] symlink("/dev/binderfs", "./binderfs" [pid 5543] write(3, "1000", 4 [pid 5542] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5541] close(26 [pid 5544] <... symlink resumed>) = 0 [pid 5543] <... write resumed>) = 4 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(4, [pid 5542] <... mount resumed>) = 0 [pid 5543] close(3 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5543] <... close resumed>) = 0 [pid 5050] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5544] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5543] symlink("/dev/binderfs", "./binderfs" [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5544] <... socket resumed>) = 3 [pid 5543] <... symlink resumed>) = 0 [pid 5542] open(NULL, O_RDONLY [pid 5051] close(4 [pid 5050] close(4 [pid 5544] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5543] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5542] <... open resumed>) = -1 EFAULT (Bad address) [pid 5541] close(27 [pid 5051] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5543] <... socket resumed>) = 3 [pid 5050] rmdir("./76/file0" [pid 5542] close(3 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./81/file0" [pid 5050] <... rmdir resumed>) = 0 [pid 5544] <... socket resumed>) = 4 [pid 5543] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5541] close(28 [pid 5544] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5543] <... socket resumed>) = 4 [pid 5542] <... close resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5544] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5543] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5542] close(4 [pid 5541] close(29 [pid 5051] <... rmdir resumed>) = 0 [pid 5544] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5543] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5542] <... close resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5544] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5543] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5541] exit_group(0 [pid 5051] getdents64(3, [pid 5050] close(3 [pid 5544] memfd_create("syzkaller", 0 [pid 5543] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5542] close(5 [pid 5541] <... exit_group resumed>) = ? [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5543] memfd_create("syzkaller", 0 [pid 5542] <... close resumed>) = 0 [pid 5051] close(3 [pid 5050] <... close resumed>) = 0 [pid 5542] close(6 [pid 5050] rmdir("./76" [pid 5544] <... memfd_create resumed>) = 5 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(7) = -1 EBADF (Bad file descriptor) [pid 5542] close(8 [pid 5050] <... rmdir resumed>) = 0 [pid 5544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5543] <... memfd_create resumed>) = 5 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5544] <... mmap resumed>) = 0x7f1263f98000 [pid 5542] close(9) = -1 EBADF (Bad file descriptor) [pid 5542] close(10) = -1 EBADF (Bad file descriptor) [pid 5542] close(11) = -1 EBADF (Bad file descriptor) [pid 5542] close(12) = -1 EBADF (Bad file descriptor) [pid 5050] mkdir("./77", 0777 [pid 5542] close(13 [pid 5544] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5543] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] +++ exited with 0 +++ [pid 5051] rmdir("./81" [pid 5050] <... mkdir resumed>) = 0 [pid 5544] mkdir("./file0", 000 [pid 5543] <... mmap resumed>) = 0x7f1263f98000 [pid 5542] close(14 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5543] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5542] close(15 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5544] <... mkdir resumed>) = 0 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5543] mkdir("./file0", 000 [pid 5542] close(16 [pid 5053] getdents64(3, [pid 5050] <... openat resumed>) = 3 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5542] close(17 [pid 5053] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5544] symlink(NULL, NULL [pid 5053] newfstatat(AT_FDCWD, "./78/binderfs", [pid 5051] mkdir("./82", 0777 [pid 5544] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5542] close(18 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5544] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./78/binderfs" [pid 5542] close(19 [pid 5050] close(3 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5544] <... mount resumed>) = 0 [pid 5542] close(20 [pid 5050] <... close resumed>) = 0 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5542] close(21 [pid 5051] <... mkdir resumed>) = 0 [pid 5544] open(NULL, O_RDONLY [pid 5543] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5544] <... open resumed>) = -1 EFAULT (Bad address) [pid 5543] symlink(NULL, NULL [pid 5544] close(3 [pid 5543] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5544] <... close resumed>) = 0 [pid 5543] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... umount2 resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5542] close(22) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5542] close(23 [pid 5053] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5543] <... mount resumed>) = 0 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] close(3 [pid 5544] close(4 [pid 5542] close(24 [pid 5053] newfstatat(AT_FDCWD, "./78/file0", [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5542] close(25 [pid 5053] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] close(26 [pid 5053] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5544] <... close resumed>) = 0 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5051] <... close resumed>) = 0 [pid 5543] open(NULL, O_RDONLY [pid 5544] close(5 [pid 5542] close(27 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5545 attached [pid 5544] <... close resumed>) = 0 [pid 5543] <... open resumed>) = -1 EFAULT (Bad address) [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 79 [pid 5543] close(3 [pid 5542] close(28 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(29 [pid 5053] getdents64(4, [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] exit_group(0 [pid 5543] <... close resumed>) = 0 [pid 5542] <... exit_group resumed>) = ? [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5545] set_robust_list(0x5555566e0760, 24 [pid 5544] close(6 [pid 5543] close(4 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5544] close(7 [pid 5543] <... close resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(8) = -1 EBADF (Bad file descriptor) [pid 5544] close(9./strace-static-x86_64: Process 5546 attached ) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5543] close(5 [pid 5545] <... set_robust_list resumed>) = 0 [pid 5544] close(10 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 84 [pid 5546] set_robust_list(0x5555566e0760, 24 [pid 5545] chdir("./77" [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... close resumed>) = 0 [pid 5542] +++ exited with 0 +++ [pid 5053] close(4 [pid 5546] <... set_robust_list resumed>) = 0 [pid 5544] close(11 [pid 5543] close(6 [pid 5053] <... close resumed>) = 0 [pid 5546] chdir("./82" [pid 5545] <... chdir resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./78/file0" [pid 5545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5544] close(12 [pid 5543] close(7 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5545] <... prctl resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5543] close(8 [pid 5544] close(13 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5545] setpgid(0, 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] <... setpgid resumed>) = 0 [pid 5544] close(14 [pid 5543] close(9 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] <... chdir resumed>) = 0 [pid 5544] close(15 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(10 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5546] <... prctl resumed>) = 0 [pid 5544] close(16 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5049] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5546] setpgid(0, 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(11 [pid 5053] <... close resumed>) = 0 [pid 5546] <... setpgid resumed>) = 0 [pid 5053] rmdir("./78" [pid 5546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5545] <... openat resumed>) = 3 [pid 5544] close(17 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5546] <... openat resumed>) = 3 [pid 5545] write(3, "1000", 4 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(12 [pid 5053] mkdir("./79", 0777 [pid 5049] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5546] write(3, "1000", 4 [pid 5545] <... write resumed>) = 4 [pid 5544] close(18 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5545] close(3 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(13 [pid 5545] <... close resumed>) = 0 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(19 [pid 5543] close(14 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] symlink("/dev/binderfs", "./binderfs" [pid 5544] close(20 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] <... write resumed>) = 4 [pid 5545] <... symlink resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5546] close(3) = 0 [pid 5545] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5543] close(15 [pid 5049] <... openat resumed>) = 3 [pid 5546] symlink("/dev/binderfs", "./binderfs" [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5546] <... symlink resumed>) = 0 [pid 5546] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5546] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5546] <... socket resumed>) = 4 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] close(3 [pid 5546] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5053] <... close resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5546] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5545] <... socket resumed>) = 3 [pid 5544] close(21 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5546] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5546] memfd_create("syzkaller", 0 [pid 5545] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(16 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5546] <... memfd_create resumed>) = 5 [pid 5545] <... socket resumed>) = 4 [pid 5544] close(22 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5545] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(17 [pid 5546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5545] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5544] close(23 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5546] <... mmap resumed>) = 0x7f1263f98000 [pid 5545] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(18 [pid 5049] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5546] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5545] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5544] close(24 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5546] mkdir("./file0", 000 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(19 [pid 5545] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5547 attached [pid 5546] <... mkdir resumed>) = 0 [pid 5544] close(25 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 81 [pid 5049] newfstatat(AT_FDCWD, "./78/binderfs", [pid 5547] set_robust_list(0x5555566e0760, 24 [pid 5545] <... memfd_create resumed>) = 5 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(20 [pid 5547] <... set_robust_list resumed>) = 0 [pid 5546] symlink(NULL, NULL [pid 5545] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5544] close(26 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5547] chdir("./79" [pid 5546] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5545] <... mmap resumed>) = 0x7f1263f98000 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(21 [pid 5049] unlink("./78/binderfs" [pid 5547] <... chdir resumed>) = 0 [pid 5546] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5545] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5544] close(27 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5546] <... mount resumed>) = 0 [pid 5545] mkdir("./file0", 000 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5544] close(28 [pid 5543] close(22 [pid 5546] open(NULL, O_RDONLY [pid 5545] <... mkdir resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... prctl resumed>) = 0 [pid 5545] symlink(NULL, NULL [pid 5544] close(29 [pid 5543] close(23 [pid 5049] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5547] setpgid(0, 0 [pid 5546] <... open resumed>) = -1 EFAULT (Bad address) [pid 5545] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(3 [pid 5545] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5544] exit_group(0 [pid 5543] close(24 [pid 5546] <... close resumed>) = 0 [pid 5544] <... exit_group resumed>) = ? [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(4 [pid 5545] <... mount resumed>) = 0 [pid 5543] close(25 [pid 5546] <... close resumed>) = 0 [pid 5546] close(5) = 0 [pid 5546] close(6) = -1 EBADF (Bad file descriptor) [pid 5546] close(7) = -1 EBADF (Bad file descriptor) [pid 5546] close(8 [pid 5544] +++ exited with 0 +++ [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5547] <... setpgid resumed>) = 0 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] open(NULL, O_RDONLY [pid 5543] close(26 [pid 5049] <... umount2 resumed>) = 0 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(9 [pid 5543] close(27 [pid 5545] <... open resumed>) = -1 EFAULT (Bad address) [pid 5547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(3 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5546] close(10) = -1 EBADF (Bad file descriptor) [pid 5543] close(28 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./78/file0", [pid 5546] close(11 [pid 5543] close(29 [pid 5547] <... openat resumed>) = 3 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] <... close resumed>) = 0 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5547] write(3, "1000", 4 [pid 5545] close(4 [pid 5546] close(12 [pid 5543] exit_group(0 [pid 5048] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5547] <... write resumed>) = 4 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] <... close resumed>) = 0 [pid 5543] <... exit_group resumed>) = ? [pid 5049] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5547] close(3 [pid 5546] close(13 [pid 5545] close(5 [pid 5547] <... close resumed>) = 0 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5547] symlink("/dev/binderfs", "./binderfs" [pid 5546] close(14 [pid 5545] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5547] <... symlink resumed>) = 0 [pid 5546] close(15) = -1 EBADF (Bad file descriptor) [pid 5546] close(16 [pid 5547] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(6 [pid 5049] <... openat resumed>) = 4 [pid 5048] newfstatat(3, "", [pid 5547] <... socket resumed>) = 3 [pid 5546] close(17 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(7 [pid 5049] newfstatat(4, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(8 [pid 5048] getdents64(3, [pid 5546] close(18 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5547] <... socket resumed>) = 4 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(9 [pid 5048] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5547] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5547] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5546] close(19 [pid 5545] close(10 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5547] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(20 [pid 5545] close(11 [pid 5048] newfstatat(AT_FDCWD, "./76/binderfs", [pid 5547] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5546] close(21 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5547] memfd_create("syzkaller", 0 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(12 [pid 5049] getdents64(4, [pid 5546] close(22 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(23 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(13 [pid 5546] close(24 [pid 5049] close(4 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(25 [pid 5543] +++ exited with 0 +++ [pid 5048] unlink("./76/binderfs" [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... memfd_create resumed>) = 5 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5545] close(14 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5547] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5546] close(26 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./78/file0" [pid 5048] <... unlink resumed>) = 0 [pid 5547] <... mmap resumed>) = 0x7f1263f98000 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(15 [pid 5052] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5547] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5546] close(27 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5547] mkdir("./file0", 000 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(16 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, [pid 5048] <... umount2 resumed>) = 0 [pid 5547] <... mkdir resumed>) = 0 [pid 5546] close(28 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5547] symlink(NULL, NULL [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(17 [pid 5052] <... openat resumed>) = 3 [pid 5049] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5547] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5546] close(29 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5049] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./76/file0", [pid 5547] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(18 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5546] exit_group(0) = ? [pid 5547] <... mount resumed>) = 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5049] rmdir("./78" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5547] open(NULL, O_RDONLY [pid 5545] close(19 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... open resumed>) = -1 EFAULT (Bad address) [pid 5545] close(20 [pid 5052] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5048] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5547] close(3 [pid 5546] +++ exited with 0 +++ [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5547] <... close resumed>) = 0 [pid 5545] close(21 [pid 5052] newfstatat(AT_FDCWD, "./84/binderfs", [pid 5049] mkdir("./79", 0777 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5545] close(22 [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5545] close(23) = -1 EBADF (Bad file descriptor) [pid 5545] close(24) = -1 EBADF (Bad file descriptor) [pid 5545] close(25 [pid 5049] <... mkdir resumed>) = 0 [pid 5547] close(4 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./84/binderfs" [pid 5051] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(4, [pid 5547] <... close resumed>) = 0 [pid 5545] close(26 [pid 5547] close(5 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5547] <... close resumed>) = 0 [pid 5545] close(27 [pid 5052] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5547] close(6 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(4, [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(28 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5547] close(7 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5049] <... openat resumed>) = 3 [pid 5048] close(4 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] close(29) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5545] exit_group(0 [pid 5048] <... close resumed>) = 0 [pid 5048] rmdir("./76/file0" [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] newfstatat(3, "", [pid 5052] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] <... rmdir resumed>) = 0 [pid 5547] close(8 [pid 5052] newfstatat(AT_FDCWD, "./84/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] close(3 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5547] close(9 [pid 5051] getdents64(3, [pid 5049] <... close resumed>) = 0 [pid 5048] getdents64(3, [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] close(3) = 0 [pid 5048] rmdir("./76" [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... rmdir resumed>) = 0 [pid 5547] close(10 [pid 5051] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] mkdir("./77", 0777 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(11 [pid 5052] newfstatat(4, "", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... mkdir resumed>) = 0 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] newfstatat(AT_FDCWD, "./82/binderfs", [pid 5547] close(12 [pid 5052] getdents64(4, [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5548 attached [pid 5547] close(13 [pid 5052] getdents64(4, [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5548] set_robust_list(0x5555566e0760, 24 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] +++ exited with 0 +++ [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] unlink("./82/binderfs" [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 81 [pid 5548] <... set_robust_list resumed>) = 0 [pid 5547] close(14 [pid 5052] close(4 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5048] <... openat resumed>) = 3 [pid 5548] chdir("./79" [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5547] close(15 [pid 5052] rmdir("./84/file0" [pid 5548] <... chdir resumed>) = 0 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5547] close(16 [pid 5051] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5548] setpgid(0, 0 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5547] close(17 [pid 5548] <... setpgid resumed>) = 0 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5050] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] close(3 [pid 5548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5547] close(18 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5547] close(19 [pid 5052] close(3 [pid 5050] newfstatat(3, "", [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5548] <... openat resumed>) = 3 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5051] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] rmdir("./84" [pid 5548] write(3, "1000", 4 [pid 5547] close(20 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./82/file0", [pid 5548] <... write resumed>) = 4 [pid 5547] close(21 [pid 5052] mkdir("./85", 0777 [pid 5050] getdents64(3, ./strace-static-x86_64: Process 5549 attached [pid 5548] close(3 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5549] set_robust_list(0x5555566e0760, 24 [pid 5548] <... close resumed>) = 0 [pid 5547] close(22 [pid 5051] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5548] symlink("/dev/binderfs", "./binderfs" [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 79 [pid 5549] <... set_robust_list resumed>) = 0 [pid 5548] <... symlink resumed>) = 0 [pid 5547] close(23 [pid 5051] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5549] chdir("./77" [pid 5548] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] <... chdir resumed>) = 0 [pid 5548] <... socket resumed>) = 3 [pid 5547] close(24 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] <... openat resumed>) = 4 [pid 5050] newfstatat(AT_FDCWD, "./77/binderfs", [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5051] newfstatat(4, "", [pid 5547] close(25 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5549] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5548] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] unlink("./77/binderfs" [pid 5549] <... prctl resumed>) = 0 [pid 5548] <... socket resumed>) = 4 [pid 5547] close(26 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5549] setpgid(0, 0 [pid 5548] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5051] getdents64(4, [pid 5050] <... unlink resumed>) = 0 [pid 5549] <... setpgid resumed>) = 0 [pid 5548] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5547] close(27 [pid 5052] <... close resumed>) = 0 [pid 5050] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5549] <... openat resumed>) = 3 [pid 5548] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5547] close(28 [pid 5549] write(3, "1000", 4 [pid 5548] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5549] <... write resumed>) = 4 [pid 5548] memfd_create("syzkaller", 0) = 5 [pid 5549] close(3) = 0 [pid 5548] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5549] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5549] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5548] <... mmap resumed>) = 0x7f1263f98000 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, ./strace-static-x86_64: Process 5550 attached [pid 5548] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5547] close(29 [pid 5050] <... umount2 resumed>) = 0 [pid 5550] set_robust_list(0x5555566e0760, 24 [pid 5549] <... socket resumed>) = 3 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] <... set_robust_list resumed>) = 0 [pid 5549] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5547] exit_group(0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 87 [pid 5051] close(4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5550] chdir("./85" [pid 5549] <... socket resumed>) = 4 [pid 5548] mkdir("./file0", 000 [pid 5547] <... exit_group resumed>) = ? [pid 5550] <... chdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./77/file0", [pid 5549] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5548] <... mkdir resumed>) = 0 [pid 5549] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5549] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5549] memfd_create("syzkaller", 0) = 5 [pid 5548] symlink(NULL, NULL [pid 5547] +++ exited with 0 +++ [pid 5549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5548] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5549] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5550] <... prctl resumed>) = 0 [pid 5549] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5548] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] rmdir("./82/file0" [pid 5050] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] setpgid(0, 0 [pid 5549] mkdir("./file0", 000 [pid 5548] <... mount resumed>) = 0 [pid 5550] <... setpgid resumed>) = 0 [pid 5549] <... mkdir resumed>) = 0 [pid 5548] open(NULL, O_RDONLY [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5549] symlink(NULL, NULL [pid 5548] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] <... openat resumed>) = 3 [pid 5549] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5548] close(3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5050] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5550] write(3, "1000", 4 [pid 5549] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5548] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5550] <... write resumed>) = 4 [pid 5549] <... mount resumed>) = 0 [pid 5548] close(4 [pid 5053] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5550] close(3 [pid 5548] <... close resumed>) = 0 [pid 5053] newfstatat(3, "", [pid 5051] close(3 [pid 5550] <... close resumed>) = 0 [pid 5549] open(NULL, O_RDONLY [pid 5548] close(5 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] newfstatat(4, "", [pid 5550] symlink("/dev/binderfs", "./binderfs" [pid 5549] <... open resumed>) = -1 EFAULT (Bad address) [pid 5548] <... close resumed>) = 0 [pid 5053] getdents64(3, [pid 5550] <... symlink resumed>) = 0 [pid 5548] close(6 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... close resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5550] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5549] close(3 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] rmdir("./82" [pid 5050] getdents64(4, [pid 5550] <... socket resumed>) = 3 [pid 5549] <... close resumed>) = 0 [pid 5548] close(7 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... rmdir resumed>) = 0 [pid 5550] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5549] close(4 [pid 5548] close(8 [pid 5053] newfstatat(AT_FDCWD, "./79/binderfs", [pid 5549] <... close resumed>) = 0 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5548] close(9) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./79/binderfs" [pid 5548] close(10 [pid 5549] close(5 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5549] <... close resumed>) = 0 [pid 5548] close(11 [pid 5549] close(6 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] <... socket resumed>) = 4 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] mkdir("./83", 0777 [pid 5050] getdents64(4, [pid 5550] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(12 [pid 5053] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5549] close(7 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... mkdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5550] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5550] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(13 [pid 5053] newfstatat(AT_FDCWD, "./79/file0", [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] close(4 [pid 5550] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5549] close(8 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... close resumed>) = 0 [pid 5550] memfd_create("syzkaller", 0 [pid 5548] close(14 [pid 5051] <... openat resumed>) = 3 [pid 5050] rmdir("./77/file0" [pid 5550] <... memfd_create resumed>) = 5 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5549] close(9 [pid 5548] close(15 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5549] close(10 [pid 5548] close(16 [pid 5053] <... openat resumed>) = 4 [pid 5050] <... rmdir resumed>) = 0 [pid 5550] <... mmap resumed>) = 0x7f1263f98000 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5550] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5550] mkdir("./file0", 000 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] getdents64(3, [pid 5548] close(17 [pid 5549] close(11 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5550] <... mkdir resumed>) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(18 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] close(3 [pid 5550] symlink(NULL, NULL [pid 5549] close(12 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... close resumed>) = 0 [pid 5550] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(19 [pid 5053] getdents64(4, [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5550] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5549] close(13 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(20 [pid 5549] close(14 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(21 [pid 5549] close(15 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(22) = -1 EBADF (Bad file descriptor) [pid 5549] close(16 [pid 5548] close(23 [pid 5053] close(4 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(17 [pid 5548] close(24 [pid 5053] <... close resumed>) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./79/file0" [pid 5549] close(18 [pid 5548] close(25 [pid 5053] <... rmdir resumed>) = 0 [pid 5550] <... mount resumed>) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(19 [pid 5548] close(26 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(20 [pid 5548] close(27 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(21 [pid 5548] close(28 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(22 [pid 5548] close(29 [pid 5053] getdents64(3, [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5549] close(23 [pid 5548] exit_group(0 [pid 5053] close(3 [pid 5550] open(NULL, O_RDONLY [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... exit_group resumed>) = ? [pid 5053] <... close resumed>) = 0 [pid 5050] close(3 [pid 5550] <... open resumed>) = -1 EFAULT (Bad address) [pid 5549] close(24 [pid 5550] close(3 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5550] <... close resumed>) = 0 [pid 5549] close(25 [pid 5053] rmdir("./79" [pid 5050] rmdir("./77"./strace-static-x86_64: Process 5551 attached [pid 5550] close(4 [pid 5548] +++ exited with 0 +++ [pid 5050] <... rmdir resumed>) = 0 [pid 5551] set_robust_list(0x5555566e0760, 24 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 85 [pid 5551] <... set_robust_list resumed>) = 0 [pid 5550] <... close resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5050] mkdir("./78", 0777 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5549] close(26 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] chdir("./83" [pid 5550] close(5 [pid 5549] close(27 [pid 5050] <... mkdir resumed>) = 0 [pid 5551] <... chdir resumed>) = 0 [pid 5550] <... close resumed>) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5550] close(6 [pid 5549] close(28 [pid 5551] <... prctl resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./80", 0777 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] setpgid(0, 0 [pid 5550] close(7 [pid 5549] close(29 [pid 5053] <... mkdir resumed>) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5551] <... setpgid resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... openat resumed>) = 3 [pid 5551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5550] close(8 [pid 5549] exit_group(0 [pid 5053] <... openat resumed>) = 3 [pid 5049] newfstatat(3, "", [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] <... exit_group resumed>) = ? [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5551] <... openat resumed>) = 3 [pid 5550] close(9 [pid 5549] +++ exited with 0 +++ [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] close(3 [pid 5049] getdents64(3, [pid 5053] close(3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5053] <... close resumed>) = 0 [pid 5049] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] write(3, "1000", 4 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] newfstatat(AT_FDCWD, "./79/binderfs", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5049] unlink("./79/binderfs" [pid 5048] newfstatat(3, "", [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] close(10 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] unlink("./77/binderfs"./strace-static-x86_64: Process 5553 attached ./strace-static-x86_64: Process 5552 attached [pid 5551] <... write resumed>) = 4 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... unlink resumed>) = 0 [pid 5553] set_robust_list(0x5555566e0760, 24 [pid 5552] set_robust_list(0x5555566e0760, 24 [pid 5551] close(3 [pid 5550] close(11 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 82 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 80 [pid 5553] <... set_robust_list resumed>) = 0 [pid 5551] <... close resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./79/file0", [pid 5553] chdir("./78" [pid 5552] <... set_robust_list resumed>) = 0 [pid 5551] symlink("/dev/binderfs", "./binderfs" [pid 5550] close(12 [pid 5048] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5553] <... chdir resumed>) = 0 [pid 5552] chdir("./80" [pid 5551] <... symlink resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5553] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5552] <... chdir resumed>) = 0 [pid 5551] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5550] close(13 [pid 5048] <... umount2 resumed>) = 0 [pid 5553] <... prctl resumed>) = 0 [pid 5552] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5553] setpgid(0, 0 [pid 5552] <... prctl resumed>) = 0 [pid 5550] close(14 [pid 5553] <... setpgid resumed>) = 0 [pid 5552] setpgid(0, 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5552] <... setpgid resumed>) = 0 [pid 5550] close(15 [pid 5551] <... socket resumed>) = 3 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] close(16) = -1 EBADF (Bad file descriptor) [pid 5553] <... openat resumed>) = 3 [pid 5552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5551] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5550] close(17 [pid 5049] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5553] write(3, "1000", 4 [pid 5551] <... socket resumed>) = 4 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 4 [pid 5048] newfstatat(AT_FDCWD, "./77/file0", [pid 5553] <... write resumed>) = 4 [pid 5552] <... openat resumed>) = 3 [pid 5551] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5550] close(18 [pid 5551] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5049] newfstatat(4, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5553] close(3 [pid 5552] write(3, "1000", 4 [pid 5551] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5553] <... close resumed>) = 0 [pid 5552] <... write resumed>) = 4 [pid 5551] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5550] close(19 [pid 5553] symlink("/dev/binderfs", "./binderfs" [pid 5552] close(3 [pid 5551] memfd_create("syzkaller", 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5553] <... symlink resumed>) = 0 [pid 5552] <... close resumed>) = 0 [pid 5550] close(20 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... memfd_create resumed>) = 5 [pid 5550] close(21 [pid 5551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5553] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5552] symlink("/dev/binderfs", "./binderfs" [pid 5551] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] getdents64(4, [pid 5048] <... openat resumed>) = 4 [pid 5553] <... socket resumed>) = 3 [pid 5552] <... symlink resumed>) = 0 [pid 5551] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5551] mkdir("./file0", 000 [pid 5550] close(22 [pid 5049] close(4 [pid 5048] newfstatat(4, "", [pid 5553] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5552] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5551] <... mkdir resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5553] <... socket resumed>) = 4 [pid 5553] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5552] <... socket resumed>) = 3 [pid 5550] close(23 [pid 5049] rmdir("./79/file0" [pid 5048] getdents64(4, [pid 5553] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5553] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5553] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5553] memfd_create("syzkaller", 0 [pid 5552] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5048] getdents64(4, [pid 5553] <... memfd_create resumed>) = 5 [pid 5552] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5552] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5552] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] getdents64(3, [pid 5048] <... close resumed>) = 0 [pid 5553] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5552] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5048] rmdir("./77/file0" [pid 5553] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5553] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5552] memfd_create("syzkaller", 0 [pid 5049] close(3 [pid 5048] <... rmdir resumed>) = 0 [pid 5553] mkdir("./file0", 000) = 0 [pid 5049] <... close resumed>) = 0 [pid 5552] <... memfd_create resumed>) = 5 [pid 5049] rmdir("./79" [pid 5553] symlink(NULL, NULL [pid 5552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5553] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5552] <... mmap resumed>) = 0x7f1263f98000 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5552] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5552] mkdir("./file0", 000 [pid 5048] close(3 [pid 5551] symlink(NULL, NULL [pid 5048] <... close resumed>) = 0 [pid 5550] close(24 [pid 5553] <... mount resumed>) = 0 [pid 5048] rmdir("./77" [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5552] <... mkdir resumed>) = 0 [pid 5553] open(NULL, O_RDONLY [pid 5049] mkdir("./80", 0777 [pid 5553] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] <... mkdir resumed>) = 0 [pid 5553] close(3) = 0 [pid 5552] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5048] mkdir("./78", 0777 [pid 5551] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5550] close(25 [pid 5553] close(4 [pid 5552] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5551] <... mount resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5553] <... close resumed>) = 0 [pid 5552] <... mount resumed>) = 0 [pid 5550] close(26 [pid 5048] <... mkdir resumed>) = 0 [pid 5553] close(5 [pid 5551] open(NULL, O_RDONLY [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5550] close(27 [pid 5551] <... open resumed>) = -1 EFAULT (Bad address) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(3 [pid 5550] close(28 [pid 5553] <... close resumed>) = 0 [pid 5552] open(NULL, O_RDONLY [pid 5551] <... close resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5553] close(6 [pid 5552] <... open resumed>) = -1 EFAULT (Bad address) [pid 5551] close(4 [pid 5550] close(29 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(3 [pid 5551] <... close resumed>) = 0 [pid 5550] exit_group(0 [pid 5049] close(3 [pid 5048] <... openat resumed>) = 3 [pid 5553] close(7 [pid 5551] close(5 [pid 5550] <... exit_group resumed>) = ? [pid 5049] <... close resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = 0 [pid 5553] close(8 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(4 [pid 5553] close(9 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] close(10 [pid 5552] <... close resumed>) = 0 [pid 5048] close(3 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5553] close(11 [pid 5551] <... close resumed>) = 0 [pid 5550] +++ exited with 0 +++ [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(5 [pid 5551] close(6 [pid 5553] close(12 [pid 5552] <... close resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(6 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(7) = -1 EBADF (Bad file descriptor) [pid 5553] close(13 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(7 [pid 5551] close(8 [pid 5553] close(14 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(8 [pid 5551] close(9 [pid 5553] close(15 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(9 [pid 5553] close(16 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5554 attached [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(10 [pid 5551] close(10 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5554] set_robust_list(0x5555566e0760, 24 [pid 5553] close(17 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... set_robust_list resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(11 [pid 5052] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 82 [pid 5554] chdir("./80" [pid 5553] close(18 [pid 5552] close(11 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 80 ./strace-static-x86_64: Process 5555 attached [pid 5554] <... chdir resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(12 [pid 5052] newfstatat(3, "", [pid 5555] set_robust_list(0x5555566e0760, 24 [pid 5553] close(19 [pid 5552] close(12 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5555] <... set_robust_list resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5555] chdir("./78" [pid 5554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5553] close(20 [pid 5552] close(13 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5555] <... chdir resumed>) = 0 [pid 5554] <... prctl resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(13 [pid 5555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5554] setpgid(0, 0 [pid 5553] close(21 [pid 5552] close(14 [pid 5052] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... prctl resumed>) = 0 [pid 5554] <... setpgid resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5553] close(22 [pid 5552] close(15 [pid 5555] setpgid(0, 0 [pid 5554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(14 [pid 5052] newfstatat(AT_FDCWD, "./85/binderfs", [pid 5555] <... setpgid resumed>) = 0 [pid 5554] <... openat resumed>) = 3 [pid 5553] close(23 [pid 5552] close(16 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5554] write(3, "1000", 4 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(15 [pid 5555] <... openat resumed>) = 3 [pid 5553] close(24 [pid 5552] close(17 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./85/binderfs" [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(16 [pid 5052] <... unlink resumed>) = 0 [pid 5555] write(3, "1000", 4 [pid 5554] <... write resumed>) = 4 [pid 5553] close(25 [pid 5552] close(18 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... write resumed>) = 4 [pid 5554] close(3 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(17 [pid 5555] close(3 [pid 5554] <... close resumed>) = 0 [pid 5553] close(26 [pid 5552] close(19 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] <... close resumed>) = 0 [pid 5554] symlink("/dev/binderfs", "./binderfs" [pid 5553] close(27 [pid 5552] close(20 [pid 5551] close(18 [pid 5555] symlink("/dev/binderfs", "./binderfs" [pid 5554] <... symlink resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... symlink resumed>) = 0 [pid 5554] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5553] close(28 [pid 5552] close(21 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... socket resumed>) = 3 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(19 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5554] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5553] close(29 [pid 5552] close(22 [pid 5052] newfstatat(AT_FDCWD, "./85/file0", [pid 5555] <... socket resumed>) = 3 [pid 5554] <... socket resumed>) = 4 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5555] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5554] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5553] exit_group(0 [pid 5552] close(23 [pid 5052] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... socket resumed>) = 4 [pid 5554] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5551] close(20 [pid 5555] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5554] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5554] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5553] <... exit_group resumed>) = ? [pid 5552] close(24 [pid 5551] close(21 [pid 5555] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5555] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5554] memfd_create("syzkaller", 0 [pid 5553] +++ exited with 0 +++ [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] memfd_create("syzkaller", 0 [pid 5554] <... memfd_create resumed>) = 5 [pid 5552] close(25 [pid 5551] close(22 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] close(26 [pid 5551] close(23 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] <... memfd_create resumed>) = 5 [pid 5552] close(27 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5050] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(24 [pid 5052] newfstatat(4, "", [pid 5555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5552] close(28 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] <... mmap resumed>) = 0x7f1263f98000 [pid 5554] <... mmap resumed>) = 0x7f1263f98000 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] close(25 [pid 5052] getdents64(4, [pid 5050] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5555] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5554] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5552] close(29 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... openat resumed>) = 3 [pid 5554] mkdir("./file0", 000 [pid 5551] close(26 [pid 5050] newfstatat(3, "", [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] mkdir("./file0", 000 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5555] <... mkdir resumed>) = 0 [pid 5554] <... mkdir resumed>) = 0 [pid 5552] exit_group(0 [pid 5551] close(27 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5552] <... exit_group resumed>) = ? [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] symlink(NULL, NULL [pid 5551] close(28 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(3, [pid 5554] symlink(NULL, NULL [pid 5552] +++ exited with 0 +++ [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5554] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5551] close(29) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5554] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5551] exit_group(0 [pid 5052] <... close resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5551] <... exit_group resumed>) = ? [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] rmdir("./85/file0" [pid 5050] newfstatat(AT_FDCWD, "./78/binderfs", [pid 5555] <... mount resumed>) = 0 [pid 5053] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... rmdir resumed>) = 0 [pid 5555] open(NULL, O_RDONLY [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5555] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] close(3 [pid 5053] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(3, [pid 5053] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5555] <... close resumed>) = 0 [pid 5555] close(4 [pid 5052] close(3 [pid 5053] newfstatat(3, "", [pid 5052] <... close resumed>) = 0 [pid 5555] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] unlink("./78/binderfs" [pid 5555] close(5 [pid 5052] rmdir("./85" [pid 5050] <... unlink resumed>) = 0 [pid 5053] getdents64(3, [pid 5555] <... close resumed>) = 0 [pid 5554] <... mount resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] close(6 [pid 5053] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] close(7 [pid 5053] newfstatat(AT_FDCWD, "./80/binderfs", [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] open(NULL, O_RDONLY [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] close(8 [pid 5554] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] unlink("./80/binderfs" [pid 5052] mkdir("./86", 0777 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(3 [pid 5053] <... unlink resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./78/file0", [pid 5555] close(9 [pid 5052] <... mkdir resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] +++ exited with 0 +++ [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5555] close(10 [pid 5053] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5050] <... openat resumed>) = 4 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5555] close(11 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5554] close(4 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5555] close(12) = -1 EBADF (Bad file descriptor) [pid 5555] close(13) = -1 EBADF (Bad file descriptor) [pid 5555] close(14 [pid 5051] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] close(15 [pid 5053] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(4, [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5555] close(16 [pid 5053] newfstatat(AT_FDCWD, "./80/file0", [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(5 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5555] close(17 [pid 5554] <... close resumed>) = 0 [pid 5053] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] close(3 [pid 5051] <... openat resumed>) = 3 [pid 5050] getdents64(4, [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(6 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... close resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5555] close(18 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(7 [pid 5053] <... openat resumed>) = 4 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] close(4 [pid 5555] close(19) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5555] close(20 [pid 5053] newfstatat(4, "", [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(8 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] rmdir("./78/file0" [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] close(21 [pid 5554] close(9 [pid 5050] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(3, [pid 5555] close(22 [pid 5554] close(10 [pid 5053] getdents64(4, [pid 5051] newfstatat(AT_FDCWD, "./83/binderfs", [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] close(23 [pid 5554] close(11 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5555] close(24 [pid 5554] close(12 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] unlink("./83/binderfs" [pid 5050] close(3./strace-static-x86_64: Process 5556 attached [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5051] <... unlink resumed>) = 0 [pid 5556] set_robust_list(0x5555566e0760, 24 [pid 5555] close(25 [pid 5554] close(13 [pid 5053] <... close resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 88 [pid 5051] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./80/file0" [pid 5050] rmdir("./78" [pid 5556] <... set_robust_list resumed>) = 0 [pid 5555] close(26 [pid 5554] close(14 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] chdir("./86" [pid 5555] close(27 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... rmdir resumed>) = 0 [pid 5556] <... chdir resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(15 [pid 5053] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5555] close(28 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] newfstatat(AT_FDCWD, "./83/file0", [pid 5050] mkdir("./79", 0777 [pid 5556] <... prctl resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(16 [pid 5053] close(3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5556] setpgid(0, 0 [pid 5555] close(29 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5556] <... setpgid resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(17 [pid 5051] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5554] close(18 [pid 5556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5555] exit_group(0 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./80" [pid 5051] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... openat resumed>) = 3 [pid 5555] <... exit_group resumed>) = ? [pid 5554] close(19 [pid 5053] <... rmdir resumed>) = 0 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5556] <... openat resumed>) = 3 [pid 5555] +++ exited with 0 +++ [pid 5554] close(20 [pid 5051] newfstatat(4, "", [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5554] close(21 [pid 5556] write(3, "1000", 4 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... close resumed>) = 0 [pid 5556] <... write resumed>) = 4 [pid 5554] close(22 [pid 5053] mkdir("./81", 0777 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5556] close(3 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5051] getdents64(4, [pid 5556] <... close resumed>) = 0 [pid 5554] close(23 [pid 5556] symlink("/dev/binderfs", "./binderfs" [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... symlink resumed>) = 0 [pid 5554] close(24 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5554] close(25 [pid 5048] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5556] <... socket resumed>) = 3 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5556] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 3 [pid 5556] <... socket resumed>) = 4 [pid 5554] close(26 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5048] newfstatat(3, "", [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] getdents64(4, [pid 5554] close(27 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] close(3 [pid 5554] close(28 [pid 5051] close(4 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5556] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5556] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... close resumed>) = 0 [pid 5556] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... close resumed>) = 0 [pid 5048] getdents64(3, [pid 5556] memfd_create("syzkaller", 0 [pid 5554] close(29 [pid 5051] rmdir("./83/file0" [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... memfd_create resumed>) = 5 [pid 5554] exit_group(0 [pid 5051] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5556] <... mmap resumed>) = 0x7f1263f98000 [pid 5554] <... exit_group resumed>) = ? [pid 5051] getdents64(3, [pid 5556] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5556] mkdir("./file0", 000 [pid 5048] newfstatat(AT_FDCWD, "./78/binderfs", [pid 5556] <... mkdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] unlink("./78/binderfs"./strace-static-x86_64: Process 5557 attached [pid 5556] symlink(NULL, NULL [pid 5554] +++ exited with 0 +++ [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 81 ./strace-static-x86_64: Process 5558 attached [pid 5051] close(3 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5557] set_robust_list(0x5555566e0760, 24 [pid 5558] set_robust_list(0x5555566e0760, 24 [pid 5556] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... close resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 83 [pid 5051] rmdir("./83" [pid 5556] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5557] <... set_robust_list resumed>) = 0 [pid 5558] <... set_robust_list resumed>) = 0 [pid 5556] <... mount resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] chdir("./81" [pid 5558] chdir("./79" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = 0 [pid 5557] <... chdir resumed>) = 0 [pid 5558] <... chdir resumed>) = 0 [pid 5051] mkdir("./84", 0777 [pid 5049] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5556] open(NULL, O_RDONLY [pid 5049] <... openat resumed>) = 3 [pid 5048] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... prctl resumed>) = 0 [pid 5557] setpgid(0, 0 [pid 5558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5556] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] newfstatat(3, "", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5558] <... prctl resumed>) = 0 [pid 5557] <... setpgid resumed>) = 0 [pid 5558] setpgid(0, 0 [pid 5556] close(3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(AT_FDCWD, "./78/file0", [pid 5557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5558] <... setpgid resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5556] <... close resumed>) = 0 [pid 5049] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5556] close(4 [pid 5051] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... openat resumed>) = 3 [pid 5556] <... close resumed>) = 0 [pid 5558] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5556] close(5 [pid 5049] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5556] <... close resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 4 [pid 5557] write(3, "1000", 4 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] close(3 [pid 5557] <... write resumed>) = 4 [pid 5558] write(3, "1000", 4 [pid 5556] close(6 [pid 5051] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./80/binderfs", [pid 5048] newfstatat(4, "", [pid 5557] close(3 [pid 5558] <... write resumed>) = 4 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5557] <... close resumed>) = 0 [pid 5558] close(3 [pid 5556] close(7 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5558] <... close resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] symlink("/dev/binderfs", "./binderfs" [pid 5557] symlink("/dev/binderfs", "./binderfs" [pid 5556] close(8 [pid 5049] unlink("./80/binderfs" [pid 5048] getdents64(4, [pid 5557] <... symlink resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5556] close(9 [pid 5048] getdents64(4, [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5556] close(10 [pid 5049] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5557] <... socket resumed>) = 3 [pid 5558] <... symlink resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(4 [pid 5556] close(11 [pid 5048] <... close resumed>) = 0 [pid 5557] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5558] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] rmdir("./78/file0" [pid 5557] <... socket resumed>) = 4 [pid 5558] <... socket resumed>) = 3 [pid 5556] close(12 [pid 5048] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5559 attached [pid 5558] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5556] close(13 [pid 5049] <... umount2 resumed>) = 0 [pid 5557] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5558] <... socket resumed>) = 4 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] set_robust_list(0x5555566e0760, 24 [pid 5557] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 86 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(3, [pid 5557] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5556] close(14 [pid 5049] newfstatat(AT_FDCWD, "./80/file0", [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5559] <... set_robust_list resumed>) = 0 [pid 5557] memfd_create("syzkaller", 0 [pid 5558] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] close(3 [pid 5559] chdir("./84" [pid 5557] <... memfd_create resumed>) = 5 [pid 5558] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5556] close(15 [pid 5048] <... close resumed>) = 0 [pid 5557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... mmap resumed>) = 0x7f1263f98000 [pid 5556] close(16 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] rmdir("./78" [pid 5559] <... chdir resumed>) = 0 [pid 5558] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... rmdir resumed>) = 0 [pid 5559] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5558] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5556] close(17 [pid 5559] <... prctl resumed>) = 0 [pid 5557] mkdir("./file0", 000 [pid 5558] memfd_create("syzkaller", 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 4 [pid 5559] setpgid(0, 0 [pid 5558] <... memfd_create resumed>) = 5 [pid 5556] close(18 [pid 5559] <... setpgid resumed>) = 0 [pid 5557] <... mkdir resumed>) = 0 [pid 5558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(4, "", [pid 5559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5556] close(19 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] mkdir("./79", 0777 [pid 5559] <... openat resumed>) = 3 [pid 5558] <... mmap resumed>) = 0x7f1263f98000 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... mkdir resumed>) = 0 [pid 5558] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5559] write(3, "1000", 4 [pid 5556] close(20 [pid 5049] getdents64(4, [pid 5559] <... write resumed>) = 4 [pid 5557] symlink(NULL, NULL [pid 5558] mkdir("./file0", 000 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5559] close(3 [pid 5556] close(21 [pid 5557] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5557] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5558] <... mkdir resumed>) = 0 [pid 5556] close(22 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5559] <... close resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5556] close(23) = -1 EBADF (Bad file descriptor) [pid 5556] close(24 [pid 5048] <... openat resumed>) = 3 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(4 [pid 5556] close(25 [pid 5049] <... close resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5557] <... mount resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] close(26 [pid 5557] open(NULL, O_RDONLY [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./80/file0" [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5556] close(27 [pid 5557] <... open resumed>) = -1 EFAULT (Bad address) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] close(3 [pid 5557] close(3 [pid 5556] close(28 [pid 5049] <... rmdir resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] <... close resumed>) = 0 [pid 5556] close(29 [pid 5048] <... close resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5557] close(4 [pid 5556] exit_group(0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5556] <... exit_group resumed>) = ? [pid 5049] close(3 [pid 5559] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5557] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5559] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5557] close(5 [pid 5558] symlink(NULL, NULL [pid 5556] +++ exited with 0 +++ [pid 5559] <... socket resumed>) = 3 [pid 5557] <... close resumed>) = 0 [pid 5558] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5049] rmdir("./80" [pid 5559] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5557] close(6 [pid 5558] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] <... rmdir resumed>) = 0 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... restart_syscall resumed>) = 0 [pid 5557] close(7 [pid 5559] <... socket resumed>) = 4 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... mount resumed>) = 0 [pid 5559] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5557] close(8 [pid 5558] open(NULL, O_RDONLY [pid 5559] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] mkdir("./81", 0777./strace-static-x86_64: Process 5560 attached [pid 5559] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5557] close(9 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 81 [pid 5559] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... open resumed>) = -1 EFAULT (Bad address) [pid 5559] memfd_create("syzkaller", 0 [pid 5558] close(3 [pid 5559] <... memfd_create resumed>) = 5 [pid 5557] close(10 [pid 5052] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5559] <... mmap resumed>) = 0x7f1263f98000 [pid 5557] close(11 [pid 5558] close(4 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5559] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5560] set_robust_list(0x5555566e0760, 24 [pid 5559] mkdir("./file0", 000 [pid 5557] close(12 [pid 5558] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5560] <... set_robust_list resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5557] close(13 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5560] chdir("./79" [pid 5559] <... mkdir resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] close(5 [pid 5560] <... chdir resumed>) = 0 [pid 5557] close(14 [pid 5052] getdents64(3, [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5560] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... prctl resumed>) = 0 [pid 5557] close(15 [pid 5558] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] close(3 [pid 5560] setpgid(0, 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] close(6 [pid 5052] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] symlink(NULL, NULL [pid 5560] <... setpgid resumed>) = 0 [pid 5557] close(16 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5559] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5557] close(17 [pid 5558] close(7 [pid 5559] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... openat resumed>) = 3 [pid 5557] close(18 [pid 5558] close(8 [pid 5052] newfstatat(AT_FDCWD, "./86/binderfs", [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5559] <... mount resumed>) = 0 [pid 5052] unlink("./86/binderfs" [pid 5560] write(3, "1000", 4 [pid 5558] close(9 [pid 5052] <... unlink resumed>) = 0 [pid 5557] close(19 [pid 5052] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... write resumed>) = 4 [pid 5559] open(NULL, O_RDONLY [pid 5557] close(20 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] <... open resumed>) = -1 EFAULT (Bad address) [pid 5560] close(3 [pid 5557] close(21 [pid 5558] close(10 [pid 5560] <... close resumed>) = 0 [pid 5559] close(3 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5561 attached [pid 5560] symlink("/dev/binderfs", "./binderfs" [pid 5559] <... close resumed>) = 0 [pid 5557] close(22 [pid 5558] close(11 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] close(4 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] set_robust_list(0x5555566e0760, 24 [pid 5560] <... symlink resumed>) = 0 [pid 5557] close(23 [pid 5052] newfstatat(AT_FDCWD, "./86/file0", [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 83 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... set_robust_list resumed>) = 0 [pid 5557] close(24 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5561] chdir("./81" [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] close(25 [pid 5561] <... chdir resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] close(26 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] <... prctl resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] setpgid(0, 0 [pid 5560] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5559] <... close resumed>) = 0 [pid 5557] close(27 [pid 5558] close(12 [pid 5052] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5561] <... setpgid resumed>) = 0 [pid 5560] <... socket resumed>) = 3 [pid 5559] close(5 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5560] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5559] <... close resumed>) = 0 [pid 5557] close(28 [pid 5558] close(13 [pid 5052] <... openat resumed>) = 4 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(6 [pid 5560] <... socket resumed>) = 4 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] close(14 [pid 5560] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5559] close(7 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5561] <... openat resumed>) = 3 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5560] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] close(29 [pid 5558] close(15 [pid 5560] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5559] close(8 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] write(3, "1000", 4 [pid 5560] memfd_create("syzkaller", 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] close(16 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5561] <... write resumed>) = 4 [pid 5560] <... memfd_create resumed>) = 5 [pid 5559] close(9 [pid 5557] exit_group(0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5561] close(3 [pid 5560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] <... exit_group resumed>) = ? [pid 5558] close(17 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5561] <... close resumed>) = 0 [pid 5560] <... mmap resumed>) = 0x7f1263f98000 [pid 5559] close(10 [pid 5557] +++ exited with 0 +++ [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5561] symlink("/dev/binderfs", "./binderfs" [pid 5560] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] close(18 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5561] <... symlink resumed>) = 0 [pid 5560] mkdir("./file0", 000 [pid 5559] close(11 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] close(19 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5052] close(4) = 0 [pid 5559] close(12 [pid 5561] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5560] <... mkdir resumed>) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./86/file0" [pid 5561] <... socket resumed>) = 3 [pid 5560] symlink(NULL, NULL [pid 5559] close(13 [pid 5558] close(20 [pid 5053] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5560] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5559] close(14 [pid 5558] close(21 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(15 [pid 5558] close(22 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... socket resumed>) = 4 [pid 5559] close(16 [pid 5053] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5561] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5560] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] getdents64(3, [pid 5561] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5559] close(17 [pid 5558] close(23 [pid 5053] newfstatat(3, "", [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5561] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(3 [pid 5561] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5559] close(18 [pid 5558] close(24 [pid 5053] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5561] memfd_create("syzkaller", 0 [pid 5560] <... mount resumed>) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] open(NULL, O_RDONLY [pid 5559] close(19 [pid 5558] close(25 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] rmdir("./86" [pid 5561] <... memfd_create resumed>) = 5 [pid 5560] <... open resumed>) = -1 EFAULT (Bad address) [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... rmdir resumed>) = 0 [pid 5560] close(3 [pid 5559] close(20 [pid 5558] close(26 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] close(27 [pid 5561] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5560] <... close resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] <... mmap resumed>) = 0x7f1263f98000 [pid 5560] close(4 [pid 5559] close(21 [pid 5558] close(28 [pid 5053] newfstatat(AT_FDCWD, "./81/binderfs", [pid 5052] mkdir("./87", 0777 [pid 5560] <... close resumed>) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5561] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5560] close(5 [pid 5559] close(22 [pid 5558] close(29 [pid 5053] unlink("./81/binderfs" [pid 5561] mkdir("./file0", 000 [pid 5560] <... close resumed>) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5561] <... mkdir resumed>) = 0 [pid 5560] close(6 [pid 5559] close(23 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] exit_group(0 [pid 5053] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] symlink(NULL, NULL [pid 5560] close(7 [pid 5559] close(24 [pid 5558] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = 0 [pid 5561] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5561] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5560] close(8 [pid 5559] close(25 [pid 5053] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5561] <... mount resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5053] newfstatat(AT_FDCWD, "./81/file0", [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5561] open(NULL, O_RDONLY [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] close(3 [pid 5561] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5561] close(3 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5561] <... close resumed>) = 0 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(9 [pid 5559] close(26 [pid 5561] close(4 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5560] close(10 [pid 5559] close(27 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(28 [pid 5561] <... close resumed>) = 0 [pid 5560] close(11 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5561] close(5 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(29 [pid 5053] newfstatat(4, "", [pid 5050] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] <... close resumed>) = 0 [pid 5560] close(12 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5561] close(6 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] exit_group(0 [pid 5053] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(13 [pid 5559] <... exit_group resumed>) = ? [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5561] close(7 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 89 [pid 5561] close(8 [pid 5053] close(4 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(14 [pid 5053] <... close resumed>) = 0 [pid 5561] close(9 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5562 attached [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(15 [pid 5053] rmdir("./81/file0" [pid 5050] newfstatat(3, "", [pid 5561] close(10 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5560] close(16 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5560] close(17 [pid 5562] set_robust_list(0x5555566e0760, 24 [pid 5561] close(11 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(18 [pid 5053] getdents64(3, [pid 5562] <... set_robust_list resumed>) = 0 [pid 5561] close(12 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(19 [pid 5562] chdir("./87" [pid 5561] close(13 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5050] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(20 [pid 5053] <... close resumed>) = 0 [pid 5561] close(14 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(21 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5562] <... chdir resumed>) = 0 [pid 5562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5561] close(15 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] +++ exited with 0 +++ [pid 5053] rmdir("./81" [pid 5050] newfstatat(AT_FDCWD, "./79/binderfs", [pid 5562] <... prctl resumed>) = 0 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(22 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5562] setpgid(0, 0 [pid 5561] close(16 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5050] unlink("./79/binderfs" [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(23 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5561] close(17) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(18 [pid 5053] mkdir("./82", 0777 [pid 5562] <... setpgid resumed>) = 0 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(24 [pid 5053] <... mkdir resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5561] close(19 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5560] close(25 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = 0 [pid 5561] close(20 [pid 5560] close(26 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5050] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5561] close(21 [pid 5560] close(27 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(3, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] close(22 [pid 5560] close(28 [pid 5050] newfstatat(AT_FDCWD, "./79/file0", [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(23 [pid 5053] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5562] <... openat resumed>) = 3 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(29 [pid 5051] getdents64(3, [pid 5050] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] close(24 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] exit_group(0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5560] <... exit_group resumed>) = ? [pid 5050] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5561] close(25) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5561] close(26 [pid 5053] <... close resumed>) = 0 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(27 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] +++ exited with 0 +++ [pid 5050] <... openat resumed>) = 4 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5561] close(28) = -1 EBADF (Bad file descriptor) [pid 5561] close(29 [pid 5048] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] exit_group(0 [pid 5048] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5048] newfstatat(3, "", [pid 5561] <... exit_group resumed>) = ? [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5562] write(3, "1000", 4 [pid 5561] +++ exited with 0 +++ [pid 5051] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(4, "", [pid 5562] <... write resumed>) = 4 [pid 5048] getdents64(3, [pid 5562] close(3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5562] <... close resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./84/binderfs", [pid 5048] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5563 attached [pid 5562] symlink("/dev/binderfs", "./binderfs" [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] getdents64(4, [pid 5563] set_robust_list(0x5555566e0760, 24 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 84 [pid 5049] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5562] <... symlink resumed>) = 0 [pid 5051] unlink("./84/binderfs" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] newfstatat(AT_FDCWD, "./79/binderfs", [pid 5563] <... set_robust_list resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] chdir("./82" [pid 5562] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] <... unlink resumed>) = 0 [pid 5050] getdents64(4, [pid 5049] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5563] <... chdir resumed>) = 0 [pid 5562] <... socket resumed>) = 3 [pid 5563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5562] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] unlink("./79/binderfs" [pid 5563] <... prctl resumed>) = 0 [pid 5562] <... socket resumed>) = 4 [pid 5051] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] close(4 [pid 5562] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5563] setpgid(0, 0 [pid 5049] newfstatat(3, "", [pid 5048] <... unlink resumed>) = 0 [pid 5563] <... setpgid resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5562] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5562] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] <... openat resumed>) = 3 [pid 5562] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./81/binderfs", [pid 5050] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] unlink("./81/binderfs" [pid 5048] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] write(3, "1000", 4 [pid 5562] memfd_create("syzkaller", 0 [pid 5050] rmdir("./79/file0" [pid 5563] <... write resumed>) = 4 [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] close(3 [pid 5562] <... memfd_create resumed>) = 5 [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5563] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./79/file0", [pid 5563] symlink("/dev/binderfs", "./binderfs" [pid 5049] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5563] <... symlink resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5049] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(4, "", [pid 5563] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5563] <... socket resumed>) = 3 [pid 5051] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(3, [pid 5049] newfstatat(AT_FDCWD, "./81/file0", [pid 5048] getdents64(4, [pid 5563] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] <... socket resumed>) = 4 [pid 5049] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(4, [pid 5563] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5563] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5049] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... close resumed>) = 0 [pid 5563] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5562] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] newfstatat(AT_FDCWD, "./84/file0", [pid 5050] close(3 [pid 5049] <... openat resumed>) = 4 [pid 5563] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5562] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] newfstatat(4, "", [pid 5048] rmdir("./79/file0" [pid 5563] memfd_create("syzkaller", 0 [pid 5051] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] <... memfd_create resumed>) = 5 [pid 5562] mkdir("./file0", 000 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] rmdir("./79" [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5563] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] getdents64(4, [pid 5048] getdents64(3, [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] close(4) = 0 [pid 5563] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5563] mkdir("./file0", 000 [pid 5049] rmdir("./81/file0" [pid 5048] close(3 [pid 5563] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... rmdir resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5562] <... mkdir resumed>) = 0 [pid 5050] mkdir("./80", 0777 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5048] rmdir("./79" [pid 5562] symlink(NULL, NULL [pid 5051] newfstatat(4, "", [pid 5050] <... mkdir resumed>) = 0 [pid 5563] symlink(NULL, NULL [pid 5562] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] getdents64(3, [pid 5563] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5562] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] getdents64(4, [pid 5050] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5563] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5563] <... mount resumed>) = 0 [pid 5562] <... mount resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] close(3 [pid 5562] open(NULL, O_RDONLY [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... close resumed>) = 0 [pid 5048] mkdir("./80", 0777 [pid 5049] rmdir("./81" [pid 5563] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5049] <... rmdir resumed>) = 0 [pid 5563] close(3 [pid 5048] <... mkdir resumed>) = 0 [pid 5563] <... close resumed>) = 0 [pid 5562] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] getdents64(4, [pid 5050] close(3 [pid 5563] close(4 [pid 5562] close(3 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] mkdir("./82", 0777 [pid 5563] <... close resumed>) = 0 [pid 5051] close(4 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5562] <... close resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5563] close(5) = 0 [pid 5562] close(4 [pid 5051] <... close resumed>) = 0 [pid 5563] close(6 [pid 5562] <... close resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5562] close(5 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5562] close(6 [pid 5051] rmdir("./84/file0" [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5564 attached [pid 5563] close(7 [pid 5562] close(7 [pid 5049] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5564] set_robust_list(0x5555566e0760, 24 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 82 [pid 5564] <... set_robust_list resumed>) = 0 [pid 5563] close(8 [pid 5562] close(8 [pid 5051] getdents64(3, [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... close resumed>) = 0 [pid 5564] chdir("./80" [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5564] <... chdir resumed>) = 0 [pid 5563] close(9 [pid 5562] close(9 [pid 5051] close(3 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5564] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5049] close(3 [pid 5564] <... prctl resumed>) = 0 [pid 5562] close(10 [pid 5563] close(10) = -1 EBADF (Bad file descriptor) [pid 5563] close(11 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5564] setpgid(0, 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(11 [pid 5564] <... setpgid resumed>) = 0 [pid 5563] close(12 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./84" [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(12) = -1 EBADF (Bad file descriptor) [pid 5564] <... openat resumed>) = 3 [pid 5563] close(13 [pid 5562] close(13) = -1 EBADF (Bad file descriptor) [pid 5562] close(14 [pid 5564] write(3, "1000", 4 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5563] close(14 [pid 5562] close(15 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] close(15 [pid 5562] close(16 [pid 5051] mkdir("./85", 0777./strace-static-x86_64: Process 5565 attached [pid 5564] <... write resumed>) = 4 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(3 [pid 5563] close(16 [pid 5565] set_robust_list(0x5555566e0760, 24 [pid 5564] <... close resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(17./strace-static-x86_64: Process 5566 attached [pid 5565] <... set_robust_list resumed>) = 0 [pid 5564] symlink("/dev/binderfs", "./binderfs" [pid 5563] close(17 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 82 [pid 5565] chdir("./80" [pid 5564] <... symlink resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] set_robust_list(0x5555566e0760, 24 [pid 5565] <... chdir resumed>) = 0 [pid 5563] close(18 [pid 5562] close(18 [pid 5051] <... mkdir resumed>) = 0 [pid 5566] <... set_robust_list resumed>) = 0 [pid 5565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5564] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... prctl resumed>) = 0 [pid 5563] close(19 [pid 5562] close(19 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 84 [pid 5565] setpgid(0, 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] chdir("./82" [pid 5565] <... setpgid resumed>) = 0 [pid 5563] close(20 [pid 5562] close(20 [pid 5565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5564] <... socket resumed>) = 3 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5565] <... openat resumed>) = 3 [pid 5562] close(21 [pid 5565] write(3, "1000", 4 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... chdir resumed>) = 0 [pid 5564] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5563] close(21 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5565] <... write resumed>) = 4 [pid 5562] close(22 [pid 5565] close(3 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = 0 [pid 5562] close(23 [pid 5565] symlink("/dev/binderfs", "./binderfs" [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(24) = -1 EBADF (Bad file descriptor) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(25 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5562] close(26 [pid 5051] <... close resumed>) = 0 [pid 5566] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5565] <... symlink resumed>) = 0 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5562] close(27 [pid 5566] <... prctl resumed>) = 0 [pid 5565] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5564] <... socket resumed>) = 4 [pid 5563] close(22 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(28 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... socket resumed>) = 3 [pid 5563] close(23 [pid 5562] close(29 [pid 5565] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] setpgid(0, 0 [pid 5565] <... socket resumed>) = 4 [pid 5564] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5563] close(24 [pid 5562] exit_group(0 [pid 5566] <... setpgid resumed>) = 0 [pid 5565] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5564] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... exit_group resumed>) = ? [pid 5566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5565] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5564] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5563] close(25 [pid 5566] <... openat resumed>) = 3 [pid 5564] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] memfd_create("syzkaller", 0 [pid 5563] close(26 [pid 5565] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5564] <... memfd_create resumed>) = 5 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] +++ exited with 0 +++ [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 87 [pid 5566] write(3, "1000", 4 [pid 5564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5563] close(27 [pid 5566] <... write resumed>) = 4 [pid 5564] <... mmap resumed>) = 0x7f1263f98000 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5566] close(3 [pid 5564] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5563] close(28 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5566] <... close resumed>) = 0 [pid 5564] mkdir("./file0", 000 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... restart_syscall resumed>) = 0 [pid 5566] symlink("/dev/binderfs", "./binderfs" [pid 5564] <... mkdir resumed>) = 0 [pid 5563] close(29 [pid 5566] <... symlink resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] exit_group(0./strace-static-x86_64: Process 5567 attached [pid 5565] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5566] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5563] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5566] <... socket resumed>) = 3 [pid 5563] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5564] symlink(NULL, NULL [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5566] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5564] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5052] <... openat resumed>) = 3 [pid 5566] <... socket resumed>) = 4 [pid 5564] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] newfstatat(3, "", [pid 5566] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5566] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5566] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5564] <... mount resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(3, [pid 5567] set_robust_list(0x5555566e0760, 24 [pid 5566] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5565] memfd_create("syzkaller", 0 [pid 5053] <... openat resumed>) = 3 [pid 5567] <... set_robust_list resumed>) = 0 [pid 5566] memfd_create("syzkaller", 0 [pid 5565] <... memfd_create resumed>) = 5 [pid 5053] newfstatat(3, "", [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5567] chdir("./85" [pid 5565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5564] open(NULL, O_RDONLY [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5567] <... chdir resumed>) = 0 [pid 5565] <... mmap resumed>) = 0x7f1263f98000 [pid 5564] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] getdents64(3, [pid 5052] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5566] <... memfd_create resumed>) = 5 [pid 5565] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5564] close(3 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5565] mkdir("./file0", 000 [pid 5564] <... close resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./87/binderfs", [pid 5566] <... mmap resumed>) = 0x7f1263f98000 [pid 5564] close(4 [pid 5053] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5565] <... mkdir resumed>) = 0 [pid 5564] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] unlink("./87/binderfs" [pid 5566] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5565] symlink(NULL, NULL [pid 5053] newfstatat(AT_FDCWD, "./82/binderfs", [pid 5566] mkdir("./file0", 000 [pid 5565] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5564] close(5 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5567] <... prctl resumed>) = 0 [pid 5566] <... mkdir resumed>) = 0 [pid 5565] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5564] <... close resumed>) = 0 [pid 5564] close(6 [pid 5053] unlink("./82/binderfs" [pid 5567] setpgid(0, 0 [pid 5565] <... mount resumed>) = 0 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5567] <... setpgid resumed>) = 0 [pid 5566] symlink(NULL, NULL [pid 5565] open(NULL, O_RDONLY [pid 5564] close(7 [pid 5053] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5566] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5565] <... open resumed>) = -1 EFAULT (Bad address) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... openat resumed>) = 3 [pid 5566] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5565] close(3 [pid 5564] close(8 [pid 5052] <... umount2 resumed>) = 0 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... mount resumed>) = 0 [pid 5565] <... close resumed>) = 0 [pid 5564] close(9 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] write(3, "1000", 4 [pid 5565] close(4 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... write resumed>) = 4 [pid 5565] <... close resumed>) = 0 [pid 5564] close(10 [pid 5053] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5567] close(3 [pid 5566] open(NULL, O_RDONLY [pid 5565] close(5 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./87/file0", [pid 5566] <... open resumed>) = -1 EFAULT (Bad address) [pid 5565] <... close resumed>) = 0 [pid 5564] close(11 [pid 5053] newfstatat(AT_FDCWD, "./82/file0", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5567] <... close resumed>) = 0 [pid 5566] close(3 [pid 5565] close(6 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5566] <... close resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(12 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5567] symlink("/dev/binderfs", "./binderfs" [pid 5565] close(7 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] <... symlink resumed>) = 0 [pid 5566] close(4 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(13 [pid 5052] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5567] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5566] <... close resumed>) = 0 [pid 5565] close(8 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... openat resumed>) = 4 [pid 5566] close(5 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(14 [pid 5567] <... socket resumed>) = 3 [pid 5566] <... close resumed>) = 0 [pid 5565] close(9 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] newfstatat(4, "", [pid 5567] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5566] close(6 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(15 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] close(10 [pid 5053] <... openat resumed>) = 4 [pid 5567] <... socket resumed>) = 4 [pid 5566] close(7 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5052] getdents64(4, [pid 5565] close(11 [pid 5564] close(16 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5567] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5566] close(8 [pid 5565] close(12 [pid 5564] close(17 [pid 5053] getdents64(4, [pid 5567] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] close(13 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5567] memfd_create("syzkaller", 0 [pid 5566] close(9 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(18 [pid 5052] getdents64(4, [pid 5567] <... memfd_create resumed>) = 5 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] close(14 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5567] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5566] close(10 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(19 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5567] <... mmap resumed>) = 0x7f1263f98000 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] close(15 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5052] close(4 [pid 5567] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5566] close(11 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(20 [pid 5567] mkdir("./file0", 000 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] close(16 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5566] close(12 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(21 [pid 5052] rmdir("./87/file0" [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] close(17 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5566] close(13 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(22 [pid 5053] rmdir("./82/file0" [pid 5565] close(18 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(14 [pid 5564] close(23 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5566] close(15 [pid 5565] close(19 [pid 5564] close(24 [pid 5052] getdents64(3, [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(16 [pid 5565] close(20 [pid 5564] close(25 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(17 [pid 5567] <... mkdir resumed>) = 0 [pid 5565] close(21 [pid 5564] close(26 [pid 5053] getdents64(3, [pid 5052] close(3 [pid 5567] symlink(NULL, NULL [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5566] close(18 [pid 5565] close(22 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(27 [pid 5566] close(19 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./87" [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(20) = -1 EBADF (Bad file descriptor) [pid 5564] close(28 [pid 5566] close(21 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5564] close(29 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./88", 0777 [pid 5566] close(22 [pid 5565] close(23 [pid 5564] exit_group(0 [pid 5052] <... mkdir resumed>) = 0 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(23) = -1 EBADF (Bad file descriptor) [pid 5564] <... exit_group resumed>) = ? [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(24 [pid 5565] close(24) = -1 EBADF (Bad file descriptor) [pid 5567] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] close(25 [pid 5564] +++ exited with 0 +++ [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5566] close(25 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5566] close(26 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5567] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] close(26 [pid 5053] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5566] close(27 [pid 5052] close(3 [pid 5567] <... mount resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./82" [pid 5565] close(27 [pid 5050] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5566] close(28 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5565] close(28) = -1 EBADF (Bad file descriptor) [pid 5565] close(29 [pid 5567] open(NULL, O_RDONLY [pid 5566] close(29 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] exit_group(0 [pid 5050] <... openat resumed>) = 3 [pid 5566] exit_group(0 [pid 5565] <... exit_group resumed>) = ? [pid 5050] newfstatat(3, "", [pid 5566] <... exit_group resumed>) = ? [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 90 ./strace-static-x86_64: Process 5568 attached [pid 5050] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5568] set_robust_list(0x5555566e0760, 24 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./80/binderfs", [pid 5568] <... set_robust_list resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5568] chdir("./88" [pid 5567] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] mkdir("./83", 0777 [pid 5567] close(3 [pid 5568] <... chdir resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5050] unlink("./80/binderfs" [pid 5567] <... close resumed>) = 0 [pid 5568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] <... unlink resumed>) = 0 [pid 5568] <... prctl resumed>) = 0 [pid 5567] close(4 [pid 5566] +++ exited with 0 +++ [pid 5050] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5568] setpgid(0, 0 [pid 5567] <... close resumed>) = 0 [pid 5565] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5568] <... setpgid resumed>) = 0 [pid 5567] close(5 [pid 5053] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = 0 [pid 5568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5567] <... close resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5050] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5568] <... openat resumed>) = 3 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./80/file0", [pid 5568] write(3, "1000", 4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5568] <... write resumed>) = 4 [pid 5050] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5568] close(3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5568] <... close resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5568] symlink("/dev/binderfs", "./binderfs" [pid 5050] <... openat resumed>) = 4 [pid 5048] <... openat resumed>) = 3 [pid 5568] <... symlink resumed>) = 0 [pid 5049] newfstatat(3, "", [pid 5567] close(6 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(4, "", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(3, "", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(4, [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] getdents64(3, [pid 5568] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5049] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5567] close(7 [pid 5053] <... close resumed>) = 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5567] close(8 [pid 5568] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./82/binderfs", ./strace-static-x86_64: Process 5569 attached [pid 5568] <... socket resumed>) = 4 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] set_robust_list(0x5555566e0760, 24 [pid 5567] close(9 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 85 [pid 5569] <... set_robust_list resumed>) = 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] chdir("./83" [pid 5567] close(10 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] unlink("./82/binderfs" [pid 5048] newfstatat(AT_FDCWD, "./80/binderfs", [pid 5569] <... chdir resumed>) = 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5569] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5567] close(11 [pid 5050] <... close resumed>) = 0 [pid 5569] <... prctl resumed>) = 0 [pid 5568] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./80/file0" [pid 5049] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] unlink("./80/binderfs" [pid 5569] setpgid(0, 0 [pid 5568] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5569] <... setpgid resumed>) = 0 [pid 5568] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5567] close(12 [pid 5049] <... umount2 resumed>) = 0 [pid 5568] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5568] memfd_create("syzkaller", 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5049] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] <... openat resumed>) = 3 [pid 5567] close(13 [pid 5569] write(3, "1000", 4 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] close(14 [pid 5569] <... write resumed>) = 4 [pid 5568] <... memfd_create resumed>) = 5 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = 0 [pid 5569] close(3 [pid 5568] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5567] close(15 [pid 5569] <... close resumed>) = 0 [pid 5568] <... mmap resumed>) = 0x7f1263f98000 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5049] newfstatat(AT_FDCWD, "./82/file0", [pid 5048] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] symlink("/dev/binderfs", "./binderfs" [pid 5567] close(16 [pid 5050] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5568] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5568] mkdir("./file0", 000 [pid 5567] close(17 [pid 5050] rmdir("./80" [pid 5049] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] <... symlink resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./80/file0", [pid 5569] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5568] <... mkdir resumed>) = 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5567] close(18 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... socket resumed>) = 3 [pid 5567] close(19 [pid 5049] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5568] symlink(NULL, NULL [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 4 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5568] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5567] close(20 [pid 5050] mkdir("./81", 0777 [pid 5048] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5568] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(4, "", [pid 5048] <... openat resumed>) = 4 [pid 5569] <... socket resumed>) = 4 [pid 5568] <... mount resumed>) = 0 [pid 5567] close(21 [pid 5569] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... mkdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5567] close(22 [pid 5048] newfstatat(4, "", [pid 5569] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5049] getdents64(4, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5568] open(NULL, O_RDONLY [pid 5567] close(23 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] getdents64(4, [pid 5569] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5568] <... open resumed>) = -1 EFAULT (Bad address) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5569] memfd_create("syzkaller", 0 [pid 5568] close(3 [pid 5567] close(24 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5568] <... close resumed>) = 0 [pid 5568] close(4 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] close(4 [pid 5048] getdents64(4, [pid 5569] <... memfd_create resumed>) = 5 [pid 5568] <... close resumed>) = 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5569] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5567] close(25 [pid 5568] close(5 [pid 5050] close(3 [pid 5049] rmdir("./82/file0" [pid 5048] close(4 [pid 5568] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5569] <... mmap resumed>) = 0x7f1263f98000 [pid 5568] close(6 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] rmdir("./80/file0" [pid 5569] mkdir("./file0", 000 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] close(26 [pid 5569] <... mkdir resumed>) = 0 [pid 5568] close(7 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... rmdir resumed>) = 0 [pid 5049] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5568] close(8 [pid 5049] <... close resumed>) = 0 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./82" [pid 5568] close(9 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] getdents64(3, [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] close(27) = -1 EBADF (Bad file descriptor) [pid 5568] close(10 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] mkdir("./83", 0777 [pid 5048] close(3 [pid 5569] symlink(NULL, NULL [pid 5568] close(11 [pid 5567] close(28 [pid 5569] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5567] close(29./strace-static-x86_64: Process 5570 attached [pid 5569] <... mount resumed>) = 0 [pid 5568] close(12 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 83 [pid 5048] <... close resumed>) = 0 [pid 5569] open(NULL, O_RDONLY [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... mkdir resumed>) = 0 [pid 5570] set_robust_list(0x5555566e0760, 24 [pid 5568] close(13 [pid 5048] rmdir("./80" [pid 5570] <... set_robust_list resumed>) = 0 [pid 5569] <... open resumed>) = -1 EFAULT (Bad address) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... rmdir resumed>) = 0 [pid 5570] chdir("./81" [pid 5568] close(14 [pid 5569] close(3 [pid 5049] <... openat resumed>) = 3 [pid 5570] <... chdir resumed>) = 0 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] exit_group(0 [pid 5570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5569] <... close resumed>) = 0 [pid 5568] close(15 [pid 5567] <... exit_group resumed>) = ? [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5570] <... prctl resumed>) = 0 [pid 5569] close(4 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] mkdir("./81", 0777 [pid 5570] setpgid(0, 0 [pid 5568] close(16 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... mkdir resumed>) = 0 [pid 5570] <... setpgid resumed>) = 0 [pid 5569] <... close resumed>) = 0 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(17) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5568] close(18 [pid 5049] <... close resumed>) = 0 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5569] close(5 [pid 5570] <... openat resumed>) = 3 [pid 5568] close(19 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5570] write(3, "1000", 4 [pid 5569] <... close resumed>) = 0 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5569] close(6) = -1 EBADF (Bad file descriptor) [pid 5570] <... write resumed>) = 4 [pid 5569] close(7 [pid 5568] close(20 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5570] close(3 [pid 5568] close(21 [pid 5048] close(3 [pid 5570] <... close resumed>) = 0 [pid 5570] symlink("/dev/binderfs", "./binderfs" [pid 5569] close(8 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5568] close(22 [pid 5567] +++ exited with 0 +++ [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5570] <... symlink resumed>) = 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5568] close(23 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5569] close(9 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 85 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(24./strace-static-x86_64: Process 5571 attached [pid 5569] close(10 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(25 [pid 5571] set_robust_list(0x5555566e0760, 24 [pid 5570] <... socket resumed>) = 3 [pid 5569] close(11 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5571] <... set_robust_list resumed>) = 0 [pid 5570] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(26 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5571] chdir("./83" [pid 5570] <... socket resumed>) = 4 [pid 5569] close(12 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5571] <... chdir resumed>) = 0 [pid 5570] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(27 [pid 5051] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5572 attached [pid 5571] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5570] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5569] close(13 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... prctl resumed>) = 0 [pid 5570] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(28 [pid 5051] newfstatat(3, "", [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 83 [pid 5571] setpgid(0, 0 [pid 5570] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5569] close(14 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5570] memfd_create("syzkaller", 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(29 [pid 5570] <... memfd_create resumed>) = 5 [pid 5569] close(15 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5572] set_robust_list(0x5555566e0760, 24 [pid 5571] <... setpgid resumed>) = 0 [pid 5570] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] exit_group(0 [pid 5572] <... set_robust_list resumed>) = 0 [pid 5571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5570] <... mmap resumed>) = 0x7f1263f98000 [pid 5569] close(16 [pid 5568] <... exit_group resumed>) = ? [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5572] chdir("./81" [pid 5571] <... openat resumed>) = 3 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] write(3, "1000", 4 [pid 5569] close(17 [pid 5051] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5570] mkdir("./file0", 000 [pid 5051] newfstatat(AT_FDCWD, "./85/binderfs", [pid 5572] <... chdir resumed>) = 0 [pid 5571] <... write resumed>) = 4 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5571] close(3 [pid 5569] close(18 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5572] <... prctl resumed>) = 0 [pid 5571] <... close resumed>) = 0 [pid 5570] <... mkdir resumed>) = 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./85/binderfs" [pid 5572] setpgid(0, 0 [pid 5571] symlink("/dev/binderfs", "./binderfs" [pid 5570] symlink(NULL, NULL [pid 5569] close(19 [pid 5568] +++ exited with 0 +++ [pid 5051] <... unlink resumed>) = 0 [pid 5572] <... setpgid resumed>) = 0 [pid 5571] <... symlink resumed>) = 0 [pid 5570] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5571] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5570] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5569] close(20 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] <... openat resumed>) = 3 [pid 5571] <... socket resumed>) = 3 [pid 5570] <... mount resumed>) = 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5571] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5569] close(21 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5572] write(3, "1000", 4 [pid 5571] <... socket resumed>) = 4 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... write resumed>) = 4 [pid 5571] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5569] close(22 [pid 5052] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = 0 [pid 5572] close(3 [pid 5571] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5570] open(NULL, O_RDONLY [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5572] <... close resumed>) = 0 [pid 5571] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5570] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] newfstatat(3, "", [pid 5051] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] symlink("/dev/binderfs", "./binderfs" [pid 5571] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5570] close(3 [pid 5569] close(23 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5572] <... symlink resumed>) = 0 [pid 5570] <... close resumed>) = 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./85/file0", [pid 5572] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5571] memfd_create("syzkaller", 0 [pid 5569] close(24 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5570] close(4 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5571] <... memfd_create resumed>) = 5 [pid 5570] close(5 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] <... socket resumed>) = 3 [pid 5571] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5570] <... close resumed>) = 0 [pid 5569] close(25 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5572] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5571] <... mmap resumed>) = 0x7f1263f98000 [pid 5570] close(6 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./88/binderfs", [pid 5051] <... openat resumed>) = 4 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(7 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5572] <... socket resumed>) = 4 [pid 5571] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(8 [pid 5052] unlink("./88/binderfs" [pid 5051] newfstatat(4, "", [pid 5572] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5571] mkdir("./file0", 000 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] close(26 [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5570] close(9) = -1 EBADF (Bad file descriptor) [pid 5570] close(10) = -1 EBADF (Bad file descriptor) [pid 5570] close(11 [pid 5051] getdents64(4, [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5570] close(12 [pid 5572] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5571] <... mkdir resumed>) = 0 [pid 5570] close(13 [pid 5569] close(27 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] getdents64(4, [pid 5572] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5571] symlink(NULL, NULL [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5572] memfd_create("syzkaller", 0 [pid 5570] close(14 [pid 5052] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(4 [pid 5571] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5572] <... memfd_create resumed>) = 5 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5571] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5570] close(15 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... mmap resumed>) = 0x7f1263f98000 [pid 5570] close(16 [pid 5052] newfstatat(AT_FDCWD, "./88/file0", [pid 5051] rmdir("./85/file0" [pid 5572] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5571] <... mount resumed>) = 0 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5572] mkdir("./file0", 000 [pid 5571] open(NULL, O_RDONLY [pid 5570] close(17 [pid 5051] <... rmdir resumed>) = 0 [pid 5569] close(28 [pid 5052] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... mkdir resumed>) = 0 [pid 5570] close(18 [pid 5571] <... open resumed>) = -1 EFAULT (Bad address) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5571] close(3 [pid 5570] close(19 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5572] symlink(NULL, NULL [pid 5571] <... close resumed>) = 0 [pid 5570] close(20 [pid 5569] close(29 [pid 5052] <... openat resumed>) = 4 [pid 5051] close(3 [pid 5572] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5571] close(4 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5051] <... close resumed>) = 0 [pid 5571] <... close resumed>) = 0 [pid 5570] close(21 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5572] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5571] close(5 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./85" [pid 5572] <... mount resumed>) = 0 [pid 5571] <... close resumed>) = 0 [pid 5570] close(22 [pid 5569] exit_group(0 [pid 5052] getdents64(4, [pid 5051] <... rmdir resumed>) = 0 [pid 5571] close(6 [pid 5569] <... exit_group resumed>) = ? [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5572] open(NULL, O_RDONLY [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... open resumed>) = -1 EFAULT (Bad address) [pid 5571] close(7 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5572] close(3 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(23 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] mkdir("./86", 0777 [pid 5572] <... close resumed>) = 0 [pid 5571] close(8 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(24 [pid 5052] <... close resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5572] close(4 [pid 5571] close(9 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./88/file0" [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... close resumed>) = 0 [pid 5571] close(10 [pid 5570] close(25 [pid 5052] <... rmdir resumed>) = 0 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(11) = -1 EBADF (Bad file descriptor) [pid 5571] close(12) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(13 [pid 5570] close(26 [pid 5572] close(5 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5572] <... close resumed>) = 0 [pid 5571] close(14 [pid 5570] close(27 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(28 [pid 5569] +++ exited with 0 +++ [pid 5572] close(6 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(15 [pid 5570] close(29 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] <... close resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5572] close(7 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(16 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5052] rmdir("./88" [pid 5051] close(3 [pid 5572] close(8 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] exit_group(0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5570] <... exit_group resumed>) = ? [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] +++ exited with 0 +++ [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] close(9 [pid 5571] close(17 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5572] close(10 [pid 5571] close(18 [pid 5053] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(11 [pid 5571] close(19 [pid 5053] <... openat resumed>) = 3 [pid 5052] mkdir("./89", 0777 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5052] <... mkdir resumed>) = 0 [pid 5050] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] close(12 [pid 5571] close(20 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5572] close(13 [pid 5571] close(21 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5052] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5573 attached [pid 5572] close(14 [pid 5571] close(22 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 88 [pid 5573] set_robust_list(0x5555566e0760, 24 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(3, "", [pid 5573] <... set_robust_list resumed>) = 0 [pid 5572] close(15 [pid 5571] close(23 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5573] chdir("./86" [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./83/binderfs", [pid 5052] <... close resumed>) = 0 [pid 5050] getdents64(3, [pid 5573] <... chdir resumed>) = 0 [pid 5572] close(16 [pid 5571] close(24 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./83/binderfs" [pid 5572] close(17 [pid 5573] <... prctl resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(25 [pid 5050] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5573] setpgid(0, 0 [pid 5053] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5573] <... setpgid resumed>) = 0 [pid 5050] unlink("./81/binderfs" [pid 5573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5572] close(18 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... unlink resumed>) = 0 [pid 5573] <... openat resumed>) = 3 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(26 [pid 5053] <... umount2 resumed>) = 0 [pid 5572] close(19 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5573] write(3, "1000", 4 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(27 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5574 attached [pid 5573] <... write resumed>) = 4 [pid 5572] close(20 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./83/file0", [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 91 [pid 5050] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] set_robust_list(0x5555566e0760, 24 [pid 5573] close(3 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(28 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5574] <... set_robust_list resumed>) = 0 [pid 5573] <... close resumed>) = 0 [pid 5572] close(21 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./81/file0", [pid 5574] chdir("./89" [pid 5573] symlink("/dev/binderfs", "./binderfs" [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(29 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5574] <... chdir resumed>) = 0 [pid 5573] <... symlink resumed>) = 0 [pid 5572] close(22 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] <... prctl resumed>) = 0 [pid 5573] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5572] close(23 [pid 5571] exit_group(0 [pid 5053] <... openat resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5574] setpgid(0, 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... exit_group resumed>) = ? [pid 5053] newfstatat(4, "", [pid 5050] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5573] <... socket resumed>) = 3 [pid 5572] close(24 [pid 5050] <... openat resumed>) = 4 [pid 5573] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5050] newfstatat(4, "", [pid 5573] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5571] +++ exited with 0 +++ [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5573] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5572] close(25 [pid 5053] getdents64(4, [pid 5574] <... setpgid resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5572] close(26 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] getdents64(4, [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5573] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5573] memfd_create("syzkaller", 0 [pid 5572] close(27 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5573] <... memfd_create resumed>) = 5 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5574] <... openat resumed>) = 3 [pid 5573] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5572] close(28 [pid 5053] close(4 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5573] <... mmap resumed>) = 0x7f1263f98000 [pid 5572] close(29 [pid 5053] rmdir("./83/file0" [pid 5574] write(3, "1000", 4 [pid 5573] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5049] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5574] <... write resumed>) = 4 [pid 5573] mkdir("./file0", 000 [pid 5572] exit_group(0 [pid 5053] <... rmdir resumed>) = 0 [pid 5050] rmdir("./81/file0" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5573] <... mkdir resumed>) = 0 [pid 5572] <... exit_group resumed>) = ? [pid 5050] <... rmdir resumed>) = 0 [pid 5574] close(3 [pid 5049] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5049] newfstatat(3, "", [pid 5050] getdents64(3, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(3, [pid 5573] symlink(NULL, NULL [pid 5050] close(3 [pid 5573] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5050] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5573] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5572] +++ exited with 0 +++ [pid 5050] rmdir("./81" [pid 5049] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5053] getdents64(3, [pid 5574] <... close resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5574] symlink("/dev/binderfs", "./binderfs" [pid 5053] close(3 [pid 5574] <... symlink resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5574] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./83/binderfs", [pid 5574] <... socket resumed>) = 3 [pid 5573] open(NULL, O_RDONLY [pid 5053] rmdir("./83" [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5573] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] unlink("./83/binderfs" [pid 5048] <... restart_syscall resumed>) = 0 [pid 5573] close(3 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5573] <... close resumed>) = 0 [pid 5050] mkdir("./82", 0777 [pid 5573] close(4) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5573] close(5 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5573] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] mkdir("./84", 0777 [pid 5048] <... openat resumed>) = 3 [pid 5573] close(6 [pid 5048] newfstatat(3, "", [pid 5574] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] <... mkdir resumed>) = 0 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5573] close(7 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5574] <... socket resumed>) = 4 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, [pid 5574] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5573] close(8 [pid 5053] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 3 [pid 5574] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5574] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5574] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] close(3 [pid 5573] close(9 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] newfstatat(AT_FDCWD, "./83/file0", [pid 5048] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] memfd_create("syzkaller", 0) = 5 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5574] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5573] close(10 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] close(3 [pid 5574] <... mmap resumed>) = 0x7f1263f98000 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./81/binderfs", [pid 5573] close(11 [pid 5050] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(12 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] unlink("./81/binderfs" [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(13 [pid 5574] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5574] mkdir("./file0", 000 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... unlink resumed>) = 0 [pid 5574] <... mkdir resumed>) = 0 [pid 5573] close(14 [pid 5049] <... openat resumed>) = 4 [pid 5048] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 86 [pid 5573] close(15) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(4, "", ./strace-static-x86_64: Process 5576 attached [pid 5573] close(16 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5574] symlink(NULL, NULL [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] set_robust_list(0x5555566e0760, 24 [pid 5573] close(17 [pid 5576] <... set_robust_list resumed>) = 0 [pid 5574] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] chdir("./84" [pid 5574] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5573] close(18 [pid 5576] <... chdir resumed>) = 0 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5575 attached [pid 5576] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5573] close(19 [pid 5049] getdents64(4, [pid 5574] <... mount resumed>) = 0 [pid 5048] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5575] set_robust_list(0x5555566e0760, 24 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 84 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] <... set_robust_list resumed>) = 0 [pid 5576] <... prctl resumed>) = 0 [pid 5574] open(NULL, O_RDONLY [pid 5573] close(20 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5575] chdir("./82" [pid 5576] setpgid(0, 0 [pid 5574] <... open resumed>) = -1 EFAULT (Bad address) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(AT_FDCWD, "./81/file0", [pid 5573] close(21 [pid 5049] getdents64(4, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5575] <... chdir resumed>) = 0 [pid 5574] close(3 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5575] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5573] close(22 [pid 5575] <... prctl resumed>) = 0 [pid 5576] <... setpgid resumed>) = 0 [pid 5574] <... close resumed>) = 0 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(4 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] setpgid(0, 0 [pid 5573] close(23 [pid 5049] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5575] <... setpgid resumed>) = 0 [pid 5576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5574] close(4 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./83/file0" [pid 5575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5576] <... openat resumed>) = 3 [pid 5574] <... close resumed>) = 0 [pid 5573] close(24 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5574] close(5 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] <... openat resumed>) = 3 [pid 5573] close(25 [pid 5574] <... close resumed>) = 0 [pid 5576] write(3, "1000", 4 [pid 5048] newfstatat(4, "", [pid 5576] <... write resumed>) = 4 [pid 5574] close(6 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5575] write(3, "1000", 4 [pid 5573] close(26 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5575] <... write resumed>) = 4 [pid 5576] close(3 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5575] close(3 [pid 5576] <... close resumed>) = 0 [pid 5574] close(7 [pid 5573] close(27 [pid 5048] getdents64(4, [pid 5575] <... close resumed>) = 0 [pid 5576] symlink("/dev/binderfs", "./binderfs" [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5574] close(8 [pid 5573] close(28 [pid 5575] symlink("/dev/binderfs", "./binderfs" [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5048] getdents64(4, [pid 5575] <... symlink resumed>) = 0 [pid 5576] <... symlink resumed>) = 0 [pid 5574] close(9 [pid 5573] close(29 [pid 5576] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./83" [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5576] <... socket resumed>) = 3 [pid 5574] close(10 [pid 5573] exit_group(0 [pid 5048] close(4 [pid 5575] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5576] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... exit_group resumed>) = ? [pid 5048] <... close resumed>) = 0 [pid 5575] <... socket resumed>) = 3 [pid 5574] close(11 [pid 5573] +++ exited with 0 +++ [pid 5049] <... rmdir resumed>) = 0 [pid 5575] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5576] <... socket resumed>) = 4 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] rmdir("./81/file0" [pid 5576] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5574] close(12 [pid 5576] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5574] close(13 [pid 5576] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] <... socket resumed>) = 4 [pid 5576] memfd_create("syzkaller", 0 [pid 5574] close(14 [pid 5049] mkdir("./84", 0777 [pid 5048] <... rmdir resumed>) = 0 [pid 5575] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5576] <... memfd_create resumed>) = 5 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... mkdir resumed>) = 0 [pid 5575] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5048] getdents64(3, [pid 5575] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] close(15 [pid 5576] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5574] close(16 [pid 5051] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5575] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5576] <... mmap resumed>) = 0x7f1263f98000 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5575] memfd_create("syzkaller", 0 [pid 5576] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5574] close(17 [pid 5051] newfstatat(3, "", [pid 5048] close(3 [pid 5575] <... memfd_create resumed>) = 5 [pid 5576] mkdir("./file0", 000 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5574] close(18 [pid 5051] getdents64(3, [pid 5575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... close resumed>) = 0 [pid 5575] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] rmdir("./81" [pid 5575] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5576] <... mkdir resumed>) = 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] close(3 [pid 5048] <... rmdir resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./86/binderfs", [pid 5575] mkdir("./file0", 000 [pid 5049] <... close resumed>) = 0 [pid 5576] symlink(NULL, NULL [pid 5574] close(19 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./86/binderfs" [pid 5575] <... mkdir resumed>) = 0 [pid 5576] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... unlink resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] mkdir("./82", 0777 [pid 5576] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5574] close(20 [pid 5051] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] symlink(NULL, NULL [pid 5051] <... umount2 resumed>) = 0 [pid 5575] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5576] <... mount resumed>) = 0 [pid 5051] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... mkdir resumed>) = 0 [pid 5575] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] <... mount resumed>) = 0 [pid 5576] open(NULL, O_RDONLY [pid 5574] close(21 [pid 5051] newfstatat(AT_FDCWD, "./86/file0", [pid 5576] <... open resumed>) = -1 EFAULT (Bad address) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] open(NULL, O_RDONLY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5577 attached [pid 5575] <... open resumed>) = -1 EFAULT (Bad address) [pid 5574] close(22 [pid 5051] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5576] close(3 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5577] set_robust_list(0x5555566e0760, 24 [pid 5575] close(3 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 86 [pid 5048] <... openat resumed>) = 3 [pid 5575] <... close resumed>) = 0 [pid 5575] close(4) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5577] <... set_robust_list resumed>) = 0 [pid 5574] close(23 [pid 5051] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5577] chdir("./84" [pid 5575] close(5 [pid 5576] <... close resumed>) = 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 4 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5577] <... chdir resumed>) = 0 [pid 5575] <... close resumed>) = 0 [pid 5576] close(4 [pid 5574] close(24 [pid 5051] newfstatat(4, "", [pid 5577] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5575] close(6 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] close(3 [pid 5577] <... prctl resumed>) = 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5577] setpgid(0, 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(25 [pid 5048] <... close resumed>) = 0 [pid 5575] close(7) = -1 EBADF (Bad file descriptor) [pid 5575] close(8 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... setpgid resumed>) = 0 [pid 5575] close(9 [pid 5576] <... close resumed>) = 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(5 [pid 5574] close(26 [pid 5575] close(10 [pid 5577] <... openat resumed>) = 3 [pid 5576] <... close resumed>) = 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(11) = -1 EBADF (Bad file descriptor) [pid 5575] close(12) = -1 EBADF (Bad file descriptor) [pid 5575] close(13) = -1 EBADF (Bad file descriptor) [pid 5575] close(14) = -1 EBADF (Bad file descriptor) [pid 5575] close(15) = -1 EBADF (Bad file descriptor) [pid 5575] close(16) = -1 EBADF (Bad file descriptor) [pid 5575] close(17./strace-static-x86_64: Process 5578 attached ) = -1 EBADF (Bad file descriptor) [pid 5578] set_robust_list(0x5555566e0760, 24 [pid 5575] close(18 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 84 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(19 [pid 5578] <... set_robust_list resumed>) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(20 [pid 5578] chdir("./82" [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... chdir resumed>) = 0 [pid 5575] close(21) = -1 EBADF (Bad file descriptor) [pid 5578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5575] close(22) = -1 EBADF (Bad file descriptor) [pid 5575] close(23) = -1 EBADF (Bad file descriptor) [pid 5575] close(24 [pid 5578] <... prctl resumed>) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] setpgid(0, 0 [pid 5575] close(25 [pid 5576] close(6 [pid 5574] close(27 [pid 5577] write(3, "1000", 4 [pid 5051] getdents64(4, [pid 5578] <... setpgid resumed>) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5575] close(26) = -1 EBADF (Bad file descriptor) [pid 5578] <... openat resumed>) = 3 [pid 5575] close(27) = -1 EBADF (Bad file descriptor) [pid 5575] close(28) = -1 EBADF (Bad file descriptor) [pid 5575] close(29 [pid 5578] write(3, "1000", 4 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... write resumed>) = 4 [pid 5575] exit_group(0 [pid 5578] close(3) = 0 [pid 5575] <... exit_group resumed>) = ? [pid 5578] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5577] <... write resumed>) = 4 [pid 5575] +++ exited with 0 +++ [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5578] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5577] close(3 [pid 5576] close(7 [pid 5574] close(28 [pid 5051] close(4 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5578] <... socket resumed>) = 3 [pid 5577] <... close resumed>) = 0 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5578] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5577] symlink("/dev/binderfs", "./binderfs" [pid 5576] close(8 [pid 5574] close(29 [pid 5051] rmdir("./86/file0" [pid 5578] <... socket resumed>) = 4 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5578] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5578] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5576] close(9 [pid 5578] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5577] <... symlink resumed>) = 0 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5050] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5576] close(10 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] exit_group(0 [pid 5051] close(3 [pid 5576] close(11 [pid 5050] <... openat resumed>) = 3 [pid 5577] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5578] memfd_create("syzkaller", 0 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... exit_group resumed>) = ? [pid 5051] <... close resumed>) = 0 [pid 5578] <... memfd_create resumed>) = 5 [pid 5576] close(12) = -1 EBADF (Bad file descriptor) [pid 5576] close(13 [pid 5050] newfstatat(3, "", [pid 5578] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5578] <... mmap resumed>) = 0x7f1263f98000 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./86" [pid 5050] getdents64(3, [pid 5578] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5576] close(14 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] mkdir("./file0", 000 [pid 5577] <... socket resumed>) = 3 [pid 5576] close(15 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5578] <... mkdir resumed>) = 0 [pid 5577] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./87", 0777 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] unlink("./82/binderfs" [pid 5051] <... mkdir resumed>) = 0 [pid 5578] symlink(NULL, NULL [pid 5577] <... socket resumed>) = 4 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5578] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5577] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5576] close(16 [pid 5574] +++ exited with 0 +++ [pid 5051] <... openat resumed>) = 3 [pid 5050] <... unlink resumed>) = 0 [pid 5578] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5577] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... mount resumed>) = 0 [pid 5050] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5576] close(17 [pid 5577] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... umount2 resumed>) = 0 [pid 5577] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5577] memfd_create("syzkaller", 0 [pid 5051] <... close resumed>) = 0 [pid 5050] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5578] open(NULL, O_RDONLY [pid 5050] newfstatat(AT_FDCWD, "./82/file0", [pid 5578] <... open resumed>) = -1 EFAULT (Bad address) [pid 5578] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5578] <... close resumed>) = 0 [pid 5052] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5578] close(4 [pid 5052] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5579 attached [pid 5578] <... close resumed>) = 0 [pid 5577] <... memfd_create resumed>) = 5 [pid 5576] close(18 [pid 5052] <... openat resumed>) = 3 [pid 5578] close(5 [pid 5577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5050] newfstatat(4, "", [pid 5579] set_robust_list(0x5555566e0760, 24 [pid 5578] <... close resumed>) = 0 [pid 5577] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 89 [pid 5579] <... set_robust_list resumed>) = 0 [pid 5577] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5576] close(19 [pid 5577] mkdir("./file0", 000 [pid 5579] chdir("./87" [pid 5578] close(6 [pid 5052] getdents64(3, [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5579] <... chdir resumed>) = 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5579] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5578] close(7 [pid 5577] <... mkdir resumed>) = 0 [pid 5576] close(20 [pid 5050] getdents64(4, [pid 5579] <... prctl resumed>) = 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] symlink(NULL, NULL [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5578] close(8 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5579] setpgid(0, 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5576] close(21 [pid 5579] <... setpgid resumed>) = 0 [pid 5578] close(9 [pid 5577] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./89/binderfs", [pid 5050] getdents64(4, [pid 5579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(22 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5578] close(10 [pid 5577] <... mount resumed>) = 0 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(23 [pid 5052] unlink("./89/binderfs" [pid 5050] <... close resumed>) = 0 [pid 5579] <... openat resumed>) = 3 [pid 5578] close(11 [pid 5577] open(NULL, O_RDONLY [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] write(3, "1000", 4 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... open resumed>) = -1 EFAULT (Bad address) [pid 5576] close(24 [pid 5052] <... unlink resumed>) = 0 [pid 5050] rmdir("./82/file0" [pid 5578] close(12 [pid 5577] close(3 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... write resumed>) = 4 [pid 5579] close(3 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = 0 [pid 5576] close(25 [pid 5050] <... rmdir resumed>) = 0 [pid 5579] <... close resumed>) = 0 [pid 5578] close(13 [pid 5577] close(4 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] symlink("/dev/binderfs", "./binderfs" [pid 5577] <... close resumed>) = 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... symlink resumed>) = 0 [pid 5578] close(14 [pid 5577] close(5 [pid 5576] close(26 [pid 5052] <... umount2 resumed>) = 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = 0 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5578] close(15 [pid 5577] close(6 [pid 5576] close(27 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(3, [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./89/file0", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5578] close(16 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] close(3 [pid 5579] <... socket resumed>) = 3 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(7 [pid 5576] close(28 [pid 5052] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5579] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5578] close(17 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] rmdir("./82" [pid 5579] <... socket resumed>) = 4 [pid 5578] close(18 [pid 5052] <... openat resumed>) = 4 [pid 5579] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5576] close(29 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] close(19 [pid 5052] newfstatat(4, "", [pid 5050] <... rmdir resumed>) = 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] close(20) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5578] close(21 [pid 5052] getdents64(4, [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5578] close(22) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5050] mkdir("./83", 0777 [pid 5578] close(23 [pid 5050] <... mkdir resumed>) = 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5578] close(24 [pid 5052] close(4 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5578] close(25 [pid 5052] rmdir("./89/file0") = 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] close(26) = -1 EBADF (Bad file descriptor) [pid 5578] close(27) = -1 EBADF (Bad file descriptor) [pid 5578] close(28 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5579] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5577] close(8 [pid 5579] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] memfd_create("syzkaller", 0 [pid 5578] close(29 [pid 5577] close(9 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(10) = -1 EBADF (Bad file descriptor) [pid 5579] <... memfd_create resumed>) = 5 [pid 5577] close(11 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] exit_group(0 [pid 5052] close(3 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5578] exit_group(0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] <... exit_group resumed>) = ? [pid 5052] <... close resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5578] <... exit_group resumed>) = ? [pid 5577] close(12 [pid 5576] +++ exited with 0 +++ [pid 5052] rmdir("./89" [pid 5579] <... mmap resumed>) = 0x7f1263f98000 [pid 5578] +++ exited with 0 +++ [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5050] close(3 [pid 5579] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5577] close(13 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] <... close resumed>) = 0 [pid 5052] mkdir("./90", 0777 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... mkdir resumed>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5048] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5048] <... openat resumed>) = 3 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] newfstatat(3, "", [pid 5052] close(3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... close resumed>) = 0 [pid 5048] getdents64(3, [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 85 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] newfstatat(AT_FDCWD, "./82/binderfs", [pid 5579] mkdir("./file0", 000 [pid 5577] close(14 [pid 5053] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5580 attached [pid 5579] <... mkdir resumed>) = 0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5577] close(15 [pid 5053] newfstatat(3, "", [pid 5048] unlink("./82/binderfs" [pid 5580] set_robust_list(0x5555566e0760, 24 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5580] <... set_robust_list resumed>) = 0 [pid 5048] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5580] chdir("./83" [pid 5579] symlink(NULL, NULL [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5048] <... umount2 resumed>) = 0 [pid 5580] <... chdir resumed>) = 0 [pid 5048] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5577] close(16 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5579] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5580] <... prctl resumed>) = 0 [pid 5579] <... mount resumed>) = 0 [pid 5577] close(17 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 92 [pid 5048] newfstatat(AT_FDCWD, "./82/file0", [pid 5580] setpgid(0, 0 [pid 5579] open(NULL, O_RDONLY [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./84/binderfs", [pid 5579] <... open resumed>) = -1 EFAULT (Bad address) [pid 5577] close(18) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5581 attached [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5581] set_robust_list(0x5555566e0760, 24 [pid 5580] <... setpgid resumed>) = 0 [pid 5048] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5581] <... set_robust_list resumed>) = 0 [pid 5580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5581] chdir("./90" [pid 5580] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5579] close(3 [pid 5577] close(19 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5581] <... chdir resumed>) = 0 [pid 5579] <... close resumed>) = 0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./84/binderfs" [pid 5581] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5580] write(3, "1000", 4 [pid 5579] close(4 [pid 5581] <... prctl resumed>) = 0 [pid 5580] <... write resumed>) = 4 [pid 5577] close(20 [pid 5053] <... unlink resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5581] setpgid(0, 0 [pid 5580] close(3 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... setpgid resumed>) = 0 [pid 5580] <... close resumed>) = 0 [pid 5579] <... close resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5577] close(21 [pid 5581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5580] symlink("/dev/binderfs", "./binderfs" [pid 5579] close(5 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5581] <... openat resumed>) = 3 [pid 5581] write(3, "1000", 4 [pid 5048] getdents64(4, [pid 5580] <... symlink resumed>) = 0 [pid 5581] <... write resumed>) = 4 [pid 5580] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5581] close(3 [pid 5580] <... socket resumed>) = 3 [pid 5577] close(22 [pid 5581] <... close resumed>) = 0 [pid 5580] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] symlink("/dev/binderfs", "./binderfs" [pid 5577] close(23 [pid 5053] <... umount2 resumed>) = 0 [pid 5048] getdents64(4, [pid 5581] <... symlink resumed>) = 0 [pid 5580] <... socket resumed>) = 4 [pid 5579] <... close resumed>) = 0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] close(6 [pid 5577] close(24 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5581] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... close resumed>) = 0 [pid 5581] <... socket resumed>) = 3 [pid 5580] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] rmdir("./82/file0" [pid 5577] close(25 [pid 5053] newfstatat(AT_FDCWD, "./84/file0", [pid 5580] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5053] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5580] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(3, [pid 5580] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5580] memfd_create("syzkaller", 0 [pid 5053] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5580] <... memfd_create resumed>) = 5 [pid 5048] close(3 [pid 5577] close(26 [pid 5048] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5048] rmdir("./82" [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5048] <... rmdir resumed>) = 0 [pid 5579] close(7 [pid 5577] close(27 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5581] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5580] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5048] mkdir("./83", 0777 [pid 5581] <... socket resumed>) = 4 [pid 5580] <... mmap resumed>) = 0x7f1263f98000 [pid 5579] close(8 [pid 5577] close(28 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... mkdir resumed>) = 0 [pid 5580] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5580] mkdir("./file0", 000 [pid 5579] close(9 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5581] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5580] <... mkdir resumed>) = 0 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(29 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5581] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5579] close(10 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5581] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5580] symlink(NULL, NULL [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] exit_group(0 [pid 5053] <... close resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5581] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5580] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5579] close(11 [pid 5053] rmdir("./84/file0" [pid 5048] close(3 [pid 5581] memfd_create("syzkaller", 0 [pid 5580] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5581] <... memfd_create resumed>) = 5 [pid 5579] close(12 [pid 5053] <... rmdir resumed>) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5581] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5580] <... mount resumed>) = 0 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... exit_group resumed>) = ? [pid 5053] getdents64(3, [pid 5579] close(13 [pid 5581] <... mmap resumed>) = 0x7f1263f98000 [pid 5581] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5581] mkdir("./file0", 000 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] open(NULL, O_RDONLY [pid 5579] close(14) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5580] <... open resumed>) = -1 EFAULT (Bad address) [pid 5579] close(15 [pid 5053] close(3 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(3 [pid 5579] close(16 [pid 5581] <... mkdir resumed>) = 0 [pid 5580] <... close resumed>) = 0 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5579] close(17 [pid 5053] rmdir("./84" [pid 5581] symlink(NULL, NULL [pid 5580] close(4 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5582 attached [pid 5581] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5580] <... close resumed>) = 0 [pid 5579] close(18) = -1 EBADF (Bad file descriptor) [pid 5579] close(19) = -1 EBADF (Bad file descriptor) [pid 5579] close(20 [pid 5582] set_robust_list(0x5555566e0760, 24 [pid 5580] close(5 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 85 [pid 5582] <... set_robust_list resumed>) = 0 [pid 5581] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5580] <... close resumed>) = 0 [pid 5579] close(21 [pid 5582] chdir("./83" [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] +++ exited with 0 +++ [pid 5053] <... rmdir resumed>) = 0 [pid 5582] <... chdir resumed>) = 0 [pid 5580] close(6 [pid 5579] close(22 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5581] <... mount resumed>) = 0 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./85", 0777 [pid 5580] close(7 [pid 5579] close(23 [pid 5582] <... prctl resumed>) = 0 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] setpgid(0, 0 [pid 5581] open(NULL, O_RDONLY [pid 5580] close(8 [pid 5579] close(24 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5582] <... setpgid resumed>) = 0 [pid 5581] <... open resumed>) = -1 EFAULT (Bad address) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] close(25 [pid 5582] <... openat resumed>) = 3 [pid 5581] close(3 [pid 5580] close(9 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5581] <... close resumed>) = 0 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5582] write(3, "1000", 4 [pid 5581] close(4 [pid 5580] close(10 [pid 5579] close(26 [pid 5053] <... mkdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5582] <... write resumed>) = 4 [pid 5581] <... close resumed>) = 0 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5582] close(3 [pid 5581] close(5 [pid 5580] close(11 [pid 5579] close(27 [pid 5049] getdents64(3, [pid 5582] <... close resumed>) = 0 [pid 5581] <... close resumed>) = 0 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5582] symlink("/dev/binderfs", "./binderfs" [pid 5581] close(6 [pid 5580] close(12 [pid 5049] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] <... symlink resumed>) = 0 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5580] close(13 [pid 5049] newfstatat(AT_FDCWD, "./84/binderfs", [pid 5582] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5581] close(7 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5582] <... socket resumed>) = 3 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(14) = -1 EBADF (Bad file descriptor) [pid 5581] close(8 [pid 5580] close(15 [pid 5049] unlink("./84/binderfs" [pid 5582] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5582] <... socket resumed>) = 4 [pid 5581] close(9 [pid 5580] close(16 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5581] close(10 [pid 5580] close(17 [pid 5582] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5581] close(11 [pid 5580] close(18 [pid 5582] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] memfd_create("syzkaller", 0 [pid 5581] close(12 [pid 5580] close(19 [pid 5049] <... umount2 resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... memfd_create resumed>) = 5 [pid 5580] close(20 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5581] close(13 [pid 5580] close(21 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5582] <... mmap resumed>) = 0x7f1263f98000 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./84/file0", [pid 5582] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5581] close(14 [pid 5580] close(22 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5582] mkdir("./file0", 000 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5582] <... mkdir resumed>) = 0 [pid 5581] close(15 [pid 5580] close(23 [pid 5053] <... close resumed>) = 0 [pid 5049] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] close(28 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(16 [pid 5580] close(24 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5582] symlink(NULL, NULL [pid 5581] close(17 [pid 5580] close(25 [pid 5049] <... openat resumed>) = 4 [pid 5582] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5581] close(18 [pid 5580] close(26 [pid 5049] newfstatat(4, "", [pid 5582] <... mount resumed>) = 0 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] close(29 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(19 [pid 5582] open(NULL, O_RDONLY [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(27 [pid 5579] exit_group(0 [pid 5049] getdents64(4, ./strace-static-x86_64: Process 5583 attached [pid 5582] <... open resumed>) = -1 EFAULT (Bad address) [pid 5581] close(20 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... exit_group resumed>) = ? [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(28 [pid 5582] close(3 [pid 5581] close(21 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5582] <... close resumed>) = 0 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(29 [pid 5049] getdents64(4, [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 87 [pid 5582] close(4 [pid 5581] close(22 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5582] <... close resumed>) = 0 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] exit_group(0 [pid 5049] close(4 [pid 5582] close(5 [pid 5581] close(23 [pid 5580] <... exit_group resumed>) = ? [pid 5582] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5583] set_robust_list(0x5555566e0760, 24 [pid 5582] close(6 [pid 5580] +++ exited with 0 +++ [pid 5579] +++ exited with 0 +++ [pid 5049] rmdir("./84/file0" [pid 5583] <... set_robust_list resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] chdir("./85" [pid 5582] close(7 [pid 5581] close(24 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... rmdir resumed>) = 0 [pid 5583] <... chdir resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] getdents64(3, [pid 5583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5582] close(8 [pid 5581] close(25 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5583] <... prctl resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5583] setpgid(0, 0 [pid 5581] close(26 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] close(3 [pid 5583] <... setpgid resumed>) = 0 [pid 5582] close(9 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(3, "", [pid 5050] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... close resumed>) = 0 [pid 5583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(27 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5583] <... openat resumed>) = 3 [pid 5582] close(10 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5050] <... openat resumed>) = 3 [pid 5049] rmdir("./84" [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(28 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] newfstatat(3, "", [pid 5583] write(3, "1000", 4 [pid 5582] close(11 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5583] <... write resumed>) = 4 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(29 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... rmdir resumed>) = 0 [pid 5583] close(3 [pid 5582] close(12 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(AT_FDCWD, "./87/binderfs", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5583] <... close resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] exit_group(0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] getdents64(3, [pid 5049] mkdir("./85", 0777 [pid 5583] symlink("/dev/binderfs", "./binderfs" [pid 5582] close(13 [pid 5581] <... exit_group resumed>) = ? [pid 5051] unlink("./87/binderfs" [pid 5583] <... symlink resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5051] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... mkdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./87/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5582] close(14 [pid 5051] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5583] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5582] close(15 [pid 5581] +++ exited with 0 +++ [pid 5051] <... openat resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5583] <... socket resumed>) = 3 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] newfstatat(4, "", [pid 5050] newfstatat(AT_FDCWD, "./83/binderfs", [pid 5049] <... openat resumed>) = 3 [pid 5583] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5582] close(16 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5583] <... socket resumed>) = 4 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5582] close(17 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5051] getdents64(4, [pid 5049] close(3 [pid 5583] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] unlink("./83/binderfs" [pid 5049] <... close resumed>) = 0 [pid 5583] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5582] close(18 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5583] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... unlink resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5583] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5582] close(19 [pid 5051] getdents64(4, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] close(4 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... close resumed>) = 0 [pid 5582] close(20 [pid 5051] rmdir("./87/file0" [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5051] <... rmdir resumed>) = 0 [pid 5582] close(21 [pid 5051] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5583] memfd_create("syzkaller", 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5051] close(3 [pid 5582] close(22 [pid 5051] <... close resumed>) = 0 [pid 5583] <... memfd_create resumed>) = 5 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] rmdir("./87" [pid 5050] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] close(23 [pid 5051] <... rmdir resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] close(24) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5051] mkdir("./88", 0777 [pid 5582] close(25 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = 0 [pid 5582] close(26 [pid 5583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5584 attached [pid 5583] <... mmap resumed>) = 0x7f1263f98000 [pid 5582] close(27 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... mkdir resumed>) = 0 [pid 5050] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5584] set_robust_list(0x5555566e0760, 24 [pid 5583] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./90/binderfs", [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 87 [pid 5584] <... set_robust_list resumed>) = 0 [pid 5583] mkdir("./file0", 000 [pid 5582] close(28 [pid 5583] <... mkdir resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] newfstatat(AT_FDCWD, "./83/file0", [pid 5583] symlink(NULL, NULL [pid 5582] close(29 [pid 5052] unlink("./90/binderfs" [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5584] chdir("./85" [pid 5583] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5050] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5584] <... chdir resumed>) = 0 [pid 5583] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5582] exit_group(0 [pid 5584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5583] <... mount resumed>) = 0 [pid 5582] <... exit_group resumed>) = ? [pid 5052] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5584] <... prctl resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5584] setpgid(0, 0 [pid 5051] close(3 [pid 5584] <... setpgid resumed>) = 0 [pid 5052] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... openat resumed>) = 4 [pid 5052] newfstatat(AT_FDCWD, "./90/file0", [pid 5050] newfstatat(4, "", [pid 5583] open(NULL, O_RDONLY [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5583] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5584] <... openat resumed>) = 3 [pid 5583] close(3 [pid 5582] +++ exited with 0 +++ [pid 5052] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(4, [pid 5583] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5584] write(3, "1000", 4 [pid 5583] close(4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] close(4 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5585 attached [pid 5584] <... write resumed>) = 4 [pid 5052] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... close resumed>) = 0 [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5585] set_robust_list(0x5555566e0760, 24 [pid 5584] close(3 [pid 5583] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 90 [pid 5050] rmdir("./83/file0" [pid 5048] <... restart_syscall resumed>) = 0 [pid 5585] <... set_robust_list resumed>) = 0 [pid 5584] <... close resumed>) = 0 [pid 5583] close(5 [pid 5052] newfstatat(4, "", [pid 5050] <... rmdir resumed>) = 0 [pid 5585] chdir("./88" [pid 5584] symlink("/dev/binderfs", "./binderfs" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, [pid 5585] <... chdir resumed>) = 0 [pid 5583] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] getdents64(3, [pid 5048] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5583] close(6 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5585] <... prctl resumed>) = 0 [pid 5584] <... symlink resumed>) = 0 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5050] close(3 [pid 5048] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5585] setpgid(0, 0 [pid 5583] close(7 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5585] <... setpgid resumed>) = 0 [pid 5584] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5584] <... socket resumed>) = 3 [pid 5583] close(8 [pid 5052] <... close resumed>) = 0 [pid 5050] rmdir("./83" [pid 5584] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./90/file0" [pid 5050] <... rmdir resumed>) = 0 [pid 5048] newfstatat(3, "", [pid 5583] close(9 [pid 5585] <... openat resumed>) = 3 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5583] close(10 [pid 5048] getdents64(3, [pid 5585] write(3, "1000", 4 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5585] <... write resumed>) = 4 [pid 5584] <... socket resumed>) = 4 [pid 5583] close(11 [pid 5052] getdents64(3, [pid 5050] mkdir("./84", 0777 [pid 5585] close(3 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... mkdir resumed>) = 0 [pid 5048] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5585] <... close resumed>) = 0 [pid 5584] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5583] close(12 [pid 5052] close(3 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5585] symlink("/dev/binderfs", "./binderfs" [pid 5584] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./83/binderfs", [pid 5584] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5583] close(13 [pid 5052] rmdir("./90" [pid 5050] <... openat resumed>) = 3 [pid 5585] <... symlink resumed>) = 0 [pid 5584] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5585] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5584] memfd_create("syzkaller", 0 [pid 5583] close(14 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] unlink("./83/binderfs" [pid 5585] <... socket resumed>) = 3 [pid 5584] <... memfd_create resumed>) = 5 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./91", 0777 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5583] close(15 [pid 5050] close(3 [pid 5048] <... unlink resumed>) = 0 [pid 5585] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5583] close(16 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5586 attached [pid 5584] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5585] <... socket resumed>) = 4 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5048] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] set_robust_list(0x5555566e0760, 24 [pid 5584] mkdir("./file0", 000 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5048] <... umount2 resumed>) = 0 [pid 5586] <... set_robust_list resumed>) = 0 [pid 5585] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5583] close(17 [pid 5586] chdir("./84" [pid 5052] <... openat resumed>) = 3 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 86 [pid 5048] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] <... chdir resumed>) = 0 [pid 5585] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5584] <... mkdir resumed>) = 0 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5585] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5583] close(18 [pid 5048] newfstatat(AT_FDCWD, "./83/file0", [pid 5585] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(19 [pid 5586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5586] <... prctl resumed>) = 0 [pid 5585] memfd_create("syzkaller", 0 [pid 5584] symlink(NULL, NULL [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5586] setpgid(0, 0 [pid 5583] close(20 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5586] <... setpgid resumed>) = 0 [pid 5585] <... memfd_create resumed>) = 5 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5585] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5583] close(21 [pid 5048] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5585] <... mmap resumed>) = 0x7f1263f98000 [pid 5584] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5583] close(22 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] mkdir("./file0", 000 [pid 5583] close(23 [pid 5048] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5586] <... openat resumed>) = 3 [pid 5584] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5586] write(3, "1000", 4 [pid 5585] <... mkdir resumed>) = 0 [pid 5584] <... mount resumed>) = 0 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 4 [pid 5586] <... write resumed>) = 4 [pid 5584] open(NULL, O_RDONLY [pid 5586] close(3 [pid 5584] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5583] close(24 [pid 5048] newfstatat(4, "", [pid 5586] <... close resumed>) = 0 [pid 5585] symlink(NULL, NULL [pid 5584] close(3 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5584] <... close resumed>) = 0 [pid 5585] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5584] close(4 [pid 5583] close(25 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5584] <... close resumed>) = 0 [pid 5584] close(5 [pid 5586] symlink("/dev/binderfs", "./binderfs" [pid 5584] <... close resumed>) = 0 [pid 5586] <... symlink resumed>) = 0 [pid 5585] <... mount resumed>) = 0 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] getdents64(4, [pid 5584] close(6) = -1 EBADF (Bad file descriptor) [pid 5584] close(7 [pid 5586] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... socket resumed>) = 3 [pid 5584] close(8) = -1 EBADF (Bad file descriptor) [pid 5584] close(9) = -1 EBADF (Bad file descriptor) [pid 5584] close(10) = -1 EBADF (Bad file descriptor) [pid 5584] close(11 [pid 5586] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... socket resumed>) = 4 [pid 5584] close(12./strace-static-x86_64: Process 5587 attached [pid 5585] open(NULL, O_RDONLY [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(26 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5587] set_robust_list(0x5555566e0760, 24 [pid 5586] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5585] <... open resumed>) = -1 EFAULT (Bad address) [pid 5584] close(13 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 93 [pid 5048] getdents64(4, [pid 5587] <... set_robust_list resumed>) = 0 [pid 5586] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5585] close(3 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(27 [pid 5587] chdir("./91" [pid 5586] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5585] <... close resumed>) = 0 [pid 5584] close(14 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5585] close(4 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(28 [pid 5048] close(4 [pid 5587] <... chdir resumed>) = 0 [pid 5586] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5585] <... close resumed>) = 0 [pid 5584] close(15 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5586] memfd_create("syzkaller", 0 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(29 [pid 5048] <... close resumed>) = 0 [pid 5587] <... prctl resumed>) = 0 [pid 5584] close(16 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] rmdir("./83/file0" [pid 5587] setpgid(0, 0 [pid 5586] <... memfd_create resumed>) = 5 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(17 [pid 5587] <... setpgid resumed>) = 0 [pid 5586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5586] <... mmap resumed>) = 0x7f1263f98000 [pid 5585] close(5 [pid 5584] close(18 [pid 5583] exit_group(0 [pid 5048] <... rmdir resumed>) = 0 [pid 5585] <... close resumed>) = 0 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... exit_group resumed>) = ? [pid 5048] getdents64(3, [pid 5587] <... openat resumed>) = 3 [pid 5586] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5584] close(19) = -1 EBADF (Bad file descriptor) [pid 5584] close(20) = -1 EBADF (Bad file descriptor) [pid 5586] mkdir("./file0", 000 [pid 5584] close(21) = -1 EBADF (Bad file descriptor) [pid 5587] write(3, "1000", 4 [pid 5586] <... mkdir resumed>) = 0 [pid 5584] close(22 [pid 5587] <... write resumed>) = 4 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] +++ exited with 0 +++ [pid 5585] close(6 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5587] close(3 [pid 5584] close(23 [pid 5048] close(3 [pid 5587] <... close resumed>) = 0 [pid 5586] symlink(NULL, NULL [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] symlink("/dev/binderfs", "./binderfs" [pid 5586] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5584] close(24 [pid 5048] <... close resumed>) = 0 [pid 5585] close(7 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5584] close(25 [pid 5048] rmdir("./83" [pid 5587] <... symlink resumed>) = 0 [pid 5586] <... mount resumed>) = 0 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5584] close(26 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5587] <... socket resumed>) = 3 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(27 [pid 5053] <... openat resumed>) = 3 [pid 5587] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5586] open(NULL, O_RDONLY [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5587] <... socket resumed>) = 4 [pid 5586] <... open resumed>) = -1 EFAULT (Bad address) [pid 5584] close(28 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5587] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5586] close(3 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5587] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5586] <... close resumed>) = 0 [pid 5585] close(8 [pid 5584] close(29 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... rmdir resumed>) = 0 [pid 5587] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] mkdir("./84", 0777 [pid 5587] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5586] close(4 [pid 5585] close(9 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] memfd_create("syzkaller", 0 [pid 5586] <... close resumed>) = 0 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] exit_group(0 [pid 5053] newfstatat(AT_FDCWD, "./85/binderfs", [pid 5585] close(10 [pid 5586] close(5 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5587] <... memfd_create resumed>) = 5 [pid 5586] <... close resumed>) = 0 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... exit_group resumed>) = ? [pid 5053] unlink("./85/binderfs" [pid 5048] <... mkdir resumed>) = 0 [pid 5587] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5585] close(11 [pid 5584] +++ exited with 0 +++ [pid 5053] <... unlink resumed>) = 0 [pid 5587] <... mmap resumed>) = 0x7f1263f98000 [pid 5586] close(6 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5587] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(12 [pid 5053] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] mkdir("./file0", 000 [pid 5586] close(7 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(13 [pid 5053] <... umount2 resumed>) = 0 [pid 5049] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] close(8 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... mkdir resumed>) = 0 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(14 [pid 5053] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 3 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5586] close(9 [pid 5049] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(15 [pid 5053] newfstatat(AT_FDCWD, "./85/file0", [pid 5049] <... openat resumed>) = 3 [pid 5587] symlink(NULL, NULL [pid 5586] close(10 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5587] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] newfstatat(3, "", [pid 5586] close(11 [pid 5585] close(16 [pid 5048] close(3 [pid 5587] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5586] close(12 [pid 5048] <... close resumed>) = 0 [pid 5587] <... mount resumed>) = 0 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(17 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5586] close(13) = -1 EBADF (Bad file descriptor) [pid 5586] close(14 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(15) = -1 EBADF (Bad file descriptor) [pid 5586] close(16 [pid 5049] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] open(NULL, O_RDONLY [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] <... open resumed>) = -1 EFAULT (Bad address) [pid 5586] close(17 [pid 5049] newfstatat(AT_FDCWD, "./85/binderfs", [pid 5587] close(3 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = 0 [pid 5586] close(18 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(19) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./85/binderfs" [pid 5587] close(4 [pid 5586] close(20 [pid 5049] <... unlink resumed>) = 0 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = 0 [pid 5586] close(21 [pid 5587] close(5 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5587] <... close resumed>) = 0 [pid 5586] close(22 [pid 5049] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5586] close(23 [pid 5585] close(18 [pid 5587] close(6 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(24 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5588 attached [pid 5587] close(7 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(19 [pid 5053] newfstatat(4, "", [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 86 [pid 5585] close(20 [pid 5588] set_robust_list(0x5555566e0760, 24 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(25 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5588] <... set_robust_list resumed>) = 0 [pid 5587] close(8 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(21 [pid 5053] getdents64(4, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5588] chdir("./84" [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(26 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] close(9 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(22 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] newfstatat(AT_FDCWD, "./85/file0", [pid 5588] <... chdir resumed>) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(27 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5587] close(10 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(23 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5585] close(24) = -1 EBADF (Bad file descriptor) [pid 5585] close(25 [pid 5053] <... close resumed>) = 0 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./85/file0" [pid 5585] close(26) = -1 EBADF (Bad file descriptor) [pid 5585] close(27) = -1 EBADF (Bad file descriptor) [pid 5588] <... prctl resumed>) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(28 [pid 5585] close(28 [pid 5588] setpgid(0, 0 [pid 5587] close(11 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... setpgid resumed>) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5587] close(12 [pid 5586] close(29 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... openat resumed>) = 3 [pid 5587] close(13 [pid 5586] exit_group(0 [pid 5049] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... exit_group resumed>) = ? [pid 5588] write(3, "1000", 4 [pid 5587] close(14 [pid 5586] +++ exited with 0 +++ [pid 5585] close(29 [pid 5053] <... rmdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5588] <... write resumed>) = 4 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5588] close(3 [pid 5587] close(15 [pid 5049] <... openat resumed>) = 4 [pid 5588] <... close resumed>) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] exit_group(0 [pid 5587] close(16 [pid 5588] symlink("/dev/binderfs", "./binderfs" [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... exit_group resumed>) = ? [pid 5049] newfstatat(4, "", [pid 5588] <... symlink resumed>) = 0 [pid 5587] close(17 [pid 5053] getdents64(3, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5587] close(18 [pid 5049] getdents64(4, [pid 5588] <... socket resumed>) = 3 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5587] close(19) = -1 EBADF (Bad file descriptor) [pid 5587] close(20 [pid 5050] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(4, [pid 5588] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5587] close(21 [pid 5053] close(3 [pid 5050] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5588] <... socket resumed>) = 4 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(4 [pid 5053] <... close resumed>) = 0 [pid 5587] close(22 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... close resumed>) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./85" [pid 5050] newfstatat(3, "", [pid 5588] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5587] close(23 [pid 5049] rmdir("./85/file0" [pid 5588] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5587] close(24 [pid 5588] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5588] memfd_create("syzkaller", 0 [pid 5587] close(25) = -1 EBADF (Bad file descriptor) [pid 5587] close(26) = -1 EBADF (Bad file descriptor) [pid 5587] close(27) = -1 EBADF (Bad file descriptor) [pid 5587] close(28 [pid 5588] <... memfd_create resumed>) = 5 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5587] close(29 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(3, [pid 5588] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5049] close(3 [pid 5588] <... mmap resumed>) = 0x7f1263f98000 [pid 5587] exit_group(0 [pid 5049] <... close resumed>) = 0 [pid 5588] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5588] mkdir("./file0", 000 [pid 5049] rmdir("./85" [pid 5588] <... mkdir resumed>) = 0 [pid 5587] <... exit_group resumed>) = ? [pid 5049] <... rmdir resumed>) = 0 [pid 5587] +++ exited with 0 +++ [pid 5053] mkdir("./86", 0777 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5585] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5588] symlink(NULL, NULL [pid 5052] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... mkdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5588] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... openat resumed>) = 3 [pid 5050] newfstatat(AT_FDCWD, "./84/binderfs", [pid 5049] mkdir("./86", 0777 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5050] unlink("./84/binderfs" [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5588] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] newfstatat(3, "", [pid 5051] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5588] <... mount resumed>) = 0 [pid 5053] close(3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5588] open(NULL, O_RDONLY [pid 5053] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... openat resumed>) = 3 [pid 5588] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... openat resumed>) = 3 [pid 5588] close(3 [pid 5052] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(3, "", [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5588] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5588] close(4 [pid 5052] newfstatat(AT_FDCWD, "./91/binderfs", [pid 5051] getdents64(3, [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5588] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5588] close(5 [pid 5052] unlink("./91/binderfs" [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] close(3 [pid 5588] <... close resumed>) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5588] close(6 [pid 5051] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... close resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 88 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./88/binderfs", ./strace-static-x86_64: Process 5589 attached [pid 5588] close(7 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./88/binderfs" [pid 5589] set_robust_list(0x5555566e0760, 24 [pid 5588] close(8 [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./84/file0", [pid 5589] <... set_robust_list resumed>) = 0 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5589] chdir("./86" [pid 5588] close(9 [pid 5589] <... chdir resumed>) = 0 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5589] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5588] close(10) = -1 EBADF (Bad file descriptor) [pid 5588] close(11) = -1 EBADF (Bad file descriptor) [pid 5588] close(12) = -1 EBADF (Bad file descriptor) [pid 5588] close(13) = -1 EBADF (Bad file descriptor) [pid 5588] close(14) = -1 EBADF (Bad file descriptor) [pid 5588] close(15) = -1 EBADF (Bad file descriptor) [pid 5588] close(16) = -1 EBADF (Bad file descriptor) [pid 5588] close(17) = -1 EBADF (Bad file descriptor) [pid 5588] close(18) = -1 EBADF (Bad file descriptor) [pid 5588] close(19) = -1 EBADF (Bad file descriptor) [pid 5588] close(20) = -1 EBADF (Bad file descriptor) [pid 5588] close(21) = -1 EBADF (Bad file descriptor) [pid 5588] close(22) = -1 EBADF (Bad file descriptor) [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 88 [pid 5588] close(23) = -1 EBADF (Bad file descriptor) [pid 5588] close(24 [pid 5589] <... prctl resumed>) = 0 [pid 5050] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5589] setpgid(0, 0 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... setpgid resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5588] close(25 [pid 5050] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(26) = -1 EBADF (Bad file descriptor) [pid 5588] close(27) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5588] close(28 [pid 5050] newfstatat(4, "", [pid 5589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(29 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5590 attached [pid 5589] <... openat resumed>) = 3 [pid 5588] exit_group(0 [pid 5050] getdents64(4, [pid 5590] set_robust_list(0x5555566e0760, 24 [pid 5588] <... exit_group resumed>) = ? [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5590] <... set_robust_list resumed>) = 0 [pid 5589] write(3, "1000", 4 [pid 5588] +++ exited with 0 +++ [pid 5050] getdents64(4, [pid 5590] chdir("./86") = 0 [pid 5590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5590] setpgid(0, 0) = 0 [pid 5590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5590] write(3, "1000", 4) = 4 [pid 5590] close(3) = 0 [pid 5590] symlink("/dev/binderfs", "./binderfs" [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5589] <... write resumed>) = 4 [pid 5590] <... symlink resumed>) = 0 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5589] close(3 [pid 5050] close(4 [pid 5589] <... close resumed>) = 0 [pid 5048] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5590] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5589] symlink("/dev/binderfs", "./binderfs" [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5590] <... socket resumed>) = 3 [pid 5052] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5590] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5589] <... symlink resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] rmdir("./84/file0" [pid 5048] <... openat resumed>) = 3 [pid 5590] <... socket resumed>) = 4 [pid 5052] newfstatat(AT_FDCWD, "./91/file0", [pid 5051] newfstatat(AT_FDCWD, "./88/file0", [pid 5048] newfstatat(3, "", [pid 5589] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5590] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, [pid 5590] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5590] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5589] <... socket resumed>) = 3 [pid 5052] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] getdents64(3, [pid 5048] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5590] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... openat resumed>) = 4 [pid 5051] <... openat resumed>) = 4 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5590] memfd_create("syzkaller", 0 [pid 5052] newfstatat(4, "", [pid 5051] newfstatat(4, "", [pid 5048] newfstatat(AT_FDCWD, "./84/binderfs", [pid 5589] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5590] <... memfd_create resumed>) = 5 [pid 5052] getdents64(4, [pid 5051] getdents64(4, [pid 5048] unlink("./84/binderfs" [pid 5590] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5589] <... socket resumed>) = 4 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] close(3 [pid 5048] <... unlink resumed>) = 0 [pid 5590] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] getdents64(4, [pid 5051] getdents64(4, [pid 5048] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5590] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5589] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5590] mkdir("./file0", 000 [pid 5589] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] close(4 [pid 5051] close(4 [pid 5050] rmdir("./84" [pid 5048] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5590] <... mkdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] rmdir("./88/file0" [pid 5048] newfstatat(AT_FDCWD, "./84/file0", [pid 5051] <... rmdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(3, [pid 5048] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] rmdir("./91/file0" [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5590] symlink(NULL, NULL [pid 5589] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] close(3 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5590] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5589] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5051] rmdir("./88" [pid 5048] newfstatat(4, "", [pid 5590] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5589] memfd_create("syzkaller", 0 [pid 5052] getdents64(3, [pid 5051] <... rmdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5590] <... mount resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] close(3 [pid 5048] getdents64(4, [pid 5052] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4) = 0 [pid 5590] open(NULL, O_RDONLY [pid 5052] rmdir("./91" [pid 5048] rmdir("./84/file0" [pid 5590] <... open resumed>) = -1 EFAULT (Bad address) [pid 5589] <... memfd_create resumed>) = 5 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] mkdir("./89", 0777 [pid 5050] mkdir("./85", 0777 [pid 5048] <... rmdir resumed>) = 0 [pid 5590] close(3) = 0 [pid 5048] getdents64(3, [pid 5590] close(4 [pid 5052] mkdir("./92", 0777 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5590] <... close resumed>) = 0 [pid 5048] close(3 [pid 5590] close(5 [pid 5051] <... mkdir resumed>) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5048] rmdir("./84" [pid 5590] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5048] <... rmdir resumed>) = 0 [pid 5589] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5590] close(6 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5590] close(7) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... openat resumed>) = 3 [pid 5048] mkdir("./85", 0777 [pid 5590] close(8 [pid 5589] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] mkdir("./file0", 000 [pid 5052] close(3 [pid 5048] <... mkdir resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... close resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5590] close(9 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] close(3 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... mkdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] close(3 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5050] <... close resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5590] close(10) = -1 EBADF (Bad file descriptor) [pid 5590] close(11) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5590] close(12 [pid 5048] <... openat resumed>) = 3 [pid 5589] symlink(NULL, NULL [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 94 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 87 ./strace-static-x86_64: Process 5592 attached [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5590] close(13 [pid 5048] close(3 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5589] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5592] set_robust_list(0x5555566e0760, 24 [pid 5590] close(14 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5592] <... set_robust_list resumed>) = 0 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5591 attached [pid 5590] close(15 [pid 5592] chdir("./85"./strace-static-x86_64: Process 5593 attached [pid 5591] set_robust_list(0x5555566e0760, 24 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] open(NULL, O_RDONLY [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 91 [pid 5593] set_robust_list(0x5555566e0760, 24 [pid 5591] <... set_robust_list resumed>) = 0 [pid 5590] close(16 [pid 5592] <... chdir resumed>) = 0 [pid 5591] chdir("./92" [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... open resumed>) = -1 EFAULT (Bad address) [pid 5591] <... chdir resumed>) = 0 [pid 5592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5593] <... set_robust_list resumed>) = 0 [pid 5591] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5590] close(17 [pid 5591] <... prctl resumed>) = 0 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] chdir("./89" [pid 5591] setpgid(0, 0 [pid 5590] close(18 [pid 5592] <... prctl resumed>) = 0 [pid 5591] <... setpgid resumed>) = 0 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(3 [pid 5591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5590] close(19 [pid 5592] setpgid(0, 0 [pid 5591] <... openat resumed>) = 3 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 87 [pid 5593] <... chdir resumed>) = 0 [pid 5592] <... setpgid resumed>) = 0 [pid 5590] close(20 [pid 5589] <... close resumed>) = 0 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(21./strace-static-x86_64: Process 5594 attached [pid 5593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5591] write(3, "1000", 4 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(4 [pid 5594] set_robust_list(0x5555566e0760, 24 [pid 5593] <... prctl resumed>) = 0 [pid 5591] <... write resumed>) = 4 [pid 5590] close(22 [pid 5593] setpgid(0, 0 [pid 5592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = 0 [pid 5593] <... setpgid resumed>) = 0 [pid 5590] close(23 [pid 5589] close(5 [pid 5594] <... set_robust_list resumed>) = 0 [pid 5591] close(3 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] chdir("./85" [pid 5593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5591] <... close resumed>) = 0 [pid 5590] close(24 [pid 5594] <... chdir resumed>) = 0 [pid 5592] <... openat resumed>) = 3 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = 0 [pid 5594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5591] symlink("/dev/binderfs", "./binderfs" [pid 5590] close(25 [pid 5589] close(6 [pid 5594] <... prctl resumed>) = 0 [pid 5592] write(3, "1000", 4 [pid 5591] <... symlink resumed>) = 0 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] setpgid(0, 0 [pid 5593] <... openat resumed>) = 3 [pid 5592] <... write resumed>) = 4 [pid 5591] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5590] close(26 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... setpgid resumed>) = 0 [pid 5593] write(3, "1000", 4 [pid 5592] close(3 [pid 5591] <... socket resumed>) = 3 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(7 [pid 5590] close(27 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5593] <... write resumed>) = 4 [pid 5592] <... close resumed>) = 0 [pid 5591] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(8 [pid 5590] close(28 [pid 5594] <... openat resumed>) = 3 [pid 5593] close(3 [pid 5592] symlink("/dev/binderfs", "./binderfs" [pid 5591] <... socket resumed>) = 4 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] write(3, "1000", 4 [pid 5591] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5590] close(29 [pid 5589] close(9 [pid 5594] <... write resumed>) = 4 [pid 5592] <... symlink resumed>) = 0 [pid 5591] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = 0 [pid 5594] close(3 [pid 5591] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5593] symlink("/dev/binderfs", "./binderfs" [pid 5590] exit_group(0 [pid 5589] close(10 [pid 5592] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5594] <... close resumed>) = 0 [pid 5591] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5590] <... exit_group resumed>) = ? [pid 5594] symlink("/dev/binderfs", "./binderfs" [pid 5593] <... symlink resumed>) = 0 [pid 5592] <... socket resumed>) = 3 [pid 5590] +++ exited with 0 +++ [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... symlink resumed>) = 0 [pid 5591] memfd_create("syzkaller", 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5593] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5592] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5589] close(11 [pid 5593] <... socket resumed>) = 3 [pid 5592] <... socket resumed>) = 4 [pid 5591] <... memfd_create resumed>) = 5 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5592] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5594] <... socket resumed>) = 3 [pid 5591] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5594] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5592] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5591] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5049] <... openat resumed>) = 3 [pid 5594] <... socket resumed>) = 4 [pid 5593] <... socket resumed>) = 4 [pid 5592] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5591] mkdir("./file0", 000 [pid 5589] close(12 [pid 5049] newfstatat(3, "", [pid 5594] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5593] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5592] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, [pid 5592] memfd_create("syzkaller", 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5594] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5594] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5593] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5591] <... mkdir resumed>) = 0 [pid 5589] close(13 [pid 5049] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5594] memfd_create("syzkaller", 0 [pid 5592] <... memfd_create resumed>) = 5 [pid 5591] symlink(NULL, NULL [pid 5594] <... memfd_create resumed>) = 5 [pid 5591] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5594] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] newfstatat(AT_FDCWD, "./86/binderfs", [pid 5594] <... mmap resumed>) = 0x7f1263f98000 [pid 5592] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5591] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5592] <... mmap resumed>) = 0x7f1263f98000 [pid 5589] close(14 [pid 5594] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5593] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5592] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./86/binderfs" [pid 5594] mkdir("./file0", 000 [pid 5593] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5591] <... mount resumed>) = 0 [pid 5589] close(15 [pid 5594] <... mkdir resumed>) = 0 [pid 5593] memfd_create("syzkaller", 0 [pid 5592] mkdir("./file0", 000 [pid 5591] open(NULL, O_RDONLY [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5589] close(16) = -1 EBADF (Bad file descriptor) [pid 5589] close(17) = -1 EBADF (Bad file descriptor) [pid 5589] close(18 [pid 5591] <... open resumed>) = -1 EFAULT (Bad address) [pid 5591] close(3 [pid 5592] <... mkdir resumed>) = 0 [pid 5591] <... close resumed>) = 0 [pid 5049] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] <... memfd_create resumed>) = 5 [pid 5594] symlink(NULL, NULL [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = 0 [pid 5593] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5594] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5589] close(19 [pid 5594] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5591] close(4 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... mount resumed>) = 0 [pid 5591] <... close resumed>) = 0 [pid 5589] close(20 [pid 5049] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... mmap resumed>) = 0x7f1263f98000 [pid 5592] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5591] close(5 [pid 5589] close(21 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5594] open(NULL, O_RDONLY [pid 5593] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5591] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./86/file0", [pid 5594] <... open resumed>) = -1 EFAULT (Bad address) [pid 5592] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5591] close(6 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5594] close(3 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(7 [pid 5589] close(22 [pid 5594] <... close resumed>) = 0 [pid 5593] mkdir("./file0", 000 [pid 5592] <... mount resumed>) = 0 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5594] close(4 [pid 5591] close(8 [pid 5589] close(23 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5594] <... close resumed>) = 0 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(5 [pid 5591] close(9 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5594] <... close resumed>) = 0 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(24 [pid 5049] <... openat resumed>) = 4 [pid 5591] close(10 [pid 5594] close(6 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] open(NULL, O_RDONLY [pid 5591] close(11 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(4, "", [pid 5594] close(7 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... mkdir resumed>) = 0 [pid 5591] close(12 [pid 5589] close(25 [pid 5594] close(8 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] getdents64(4, [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(13 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5594] close(9 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(14 [pid 5594] close(10 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(26 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5594] close(11 [pid 5593] symlink(NULL, NULL [pid 5592] close(3 [pid 5591] close(15 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(4 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5594] close(12 [pid 5593] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5592] <... close resumed>) = 0 [pid 5591] close(16 [pid 5589] close(27 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./86/file0" [pid 5594] close(13 [pid 5593] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5592] close(4 [pid 5591] close(17 [pid 5589] close(28 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5594] close(14 [pid 5591] close(18 [pid 5589] close(29 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(19 [pid 5594] close(15 [pid 5593] <... mount resumed>) = 0 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = 0 [pid 5591] close(20 [pid 5594] close(16 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(21 [pid 5592] close(5 [pid 5594] close(17 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(22 [pid 5594] close(18 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(23 [pid 5049] rmdir("./86" [pid 5594] close(19 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(24 [pid 5589] exit_group(0 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(20 [pid 5593] open(NULL, O_RDONLY [pid 5592] <... close resumed>) = 0 [pid 5591] close(25 [pid 5589] <... exit_group resumed>) = ? [pid 5049] <... rmdir resumed>) = 0 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(21 [pid 5591] close(26 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] mkdir("./87", 0777 [pid 5594] close(22 [pid 5591] close(27 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(23 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(28 [pid 5594] close(24 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(29 [pid 5049] <... mkdir resumed>) = 0 [pid 5594] close(25 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] +++ exited with 0 +++ [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(26 [pid 5593] <... open resumed>) = -1 EFAULT (Bad address) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] exit_group(0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5593] close(3 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5594] close(27 [pid 5593] <... close resumed>) = 0 [pid 5592] close(6 [pid 5591] <... exit_group resumed>) = ? [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5049] <... openat resumed>) = 3 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(28 [pid 5593] close(4 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = 0 [pid 5592] close(7 [pid 5593] close(5 [pid 5594] close(29 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5593] <... close resumed>) = 0 [pid 5592] close(8 [pid 5053] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] exit_group(0 [pid 5592] close(9 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] close(3 [pid 5593] close(6 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... close resumed>) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(10 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5593] close(7 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5594] <... exit_group resumed>) = ? [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(11 [pid 5053] newfstatat(3, "", ./strace-static-x86_64: Process 5595 attached [pid 5593] close(8 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 89 [pid 5592] close(12 [pid 5591] +++ exited with 0 +++ [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5593] close(9 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5595] set_robust_list(0x5555566e0760, 24 [pid 5594] +++ exited with 0 +++ [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(13 [pid 5053] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... restart_syscall resumed>) = 0 [pid 5595] <... set_robust_list resumed>) = 0 [pid 5593] close(10 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] chdir("./87" [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(14 [pid 5053] newfstatat(AT_FDCWD, "./86/binderfs", [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5593] close(11 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] <... chdir resumed>) = 0 [pid 5048] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(15 [pid 5053] unlink("./86/binderfs" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] close(12 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5595] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(16 [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 3 [pid 5593] close(13 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5048] newfstatat(3, "", [pid 5595] <... prctl resumed>) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(17 [pid 5053] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5595] setpgid(0, 0 [pid 5593] close(14 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5048] getdents64(3, [pid 5595] <... setpgid resumed>) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(18 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5593] close(15 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] <... openat resumed>) = 3 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(19 [pid 5053] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] close(16 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./92/binderfs", [pid 5048] newfstatat(AT_FDCWD, "./85/binderfs", [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(20 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] close(17 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./86/file0", [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(21 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] unlink("./85/binderfs" [pid 5595] write(3, "1000", 4 [pid 5593] close(18 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... write resumed>) = 4 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(22 [pid 5053] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] unlink("./92/binderfs" [pid 5048] <... unlink resumed>) = 0 [pid 5595] close(3 [pid 5593] close(19 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] <... close resumed>) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(23 [pid 5053] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... unlink resumed>) = 0 [pid 5048] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] symlink("/dev/binderfs", "./binderfs" [pid 5593] close(20 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5048] <... umount2 resumed>) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(24 [pid 5052] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] <... symlink resumed>) = 0 [pid 5593] close(21 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(25 [pid 5593] close(22 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(26 [pid 5048] newfstatat(AT_FDCWD, "./85/file0", [pid 5595] <... socket resumed>) = 3 [pid 5593] close(23 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(27 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5595] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5593] close(24 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... umount2 resumed>) = 0 [pid 5048] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] <... socket resumed>) = 4 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(28 [pid 5052] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5593] close(25 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(29 [pid 5595] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5593] close(26 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] exit_group(0 [pid 5052] newfstatat(AT_FDCWD, "./92/file0", [pid 5595] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5593] close(27 [pid 5592] <... exit_group resumed>) = ? [pid 5053] close(4 [pid 5048] <... openat resumed>) = 4 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(4, "", [pid 5593] close(28 [pid 5053] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5595] memfd_create("syzkaller", 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./86/file0" [pid 5052] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(4, [pid 5595] <... memfd_create resumed>) = 5 [pid 5593] close(29 [pid 5592] +++ exited with 0 +++ [pid 5595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5595] <... mmap resumed>) = 0x7f1263f98000 [pid 5593] exit_group(0 [pid 5053] <... rmdir resumed>) = 0 [pid 5593] <... exit_group resumed>) = ? [pid 5053] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5595] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] close(3 [pid 5052] <... openat resumed>) = 4 [pid 5050] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5595] mkdir("./file0", 000 [pid 5052] newfstatat(4, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] close(4 [pid 5595] <... mkdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5053] rmdir("./86" [pid 5050] <... openat resumed>) = 3 [pid 5048] rmdir("./85/file0" [pid 5595] symlink(NULL, NULL [pid 5050] newfstatat(3, "", [pid 5595] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5593] +++ exited with 0 +++ [pid 5053] <... rmdir resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] getdents64(3, [pid 5048] getdents64(3, [pid 5595] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5595] <... mount resumed>) = 0 [pid 5052] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] close(3 [pid 5050] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... close resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./85/binderfs", [pid 5053] mkdir("./87", 0777 [pid 5052] getdents64(4, [pid 5048] rmdir("./85" [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5595] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5595] close(3 [pid 5050] unlink("./85/binderfs" [pid 5595] <... close resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5051] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] mkdir("./86", 0777 [pid 5595] close(4) = 0 [pid 5050] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... mkdir resumed>) = 0 [pid 5595] close(5) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5595] close(6) = -1 EBADF (Bad file descriptor) [pid 5595] close(7) = -1 EBADF (Bad file descriptor) [pid 5595] close(8) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5595] close(9 [pid 5050] newfstatat(AT_FDCWD, "./85/file0", [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] close(10) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5595] close(11 [pid 5052] close(4 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5052] <... close resumed>) = 0 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5050] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] close(12 [pid 5052] rmdir("./92/file0" [pid 5051] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(13) = -1 EBADF (Bad file descriptor) [pid 5595] close(14 [pid 5050] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... openat resumed>) = 3 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(15 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5051] newfstatat(3, "", [pid 5595] close(16 [pid 5050] newfstatat(4, "", [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5595] close(17) = -1 EBADF (Bad file descriptor) [pid 5595] close(18) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(4, [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] getdents64(3, [pid 5048] close(3 [pid 5052] getdents64(3, [pid 5595] close(19 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... close resumed>) = 0 [pid 5053] close(3 [pid 5052] close(3 [pid 5051] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5595] close(20 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5595] close(21) = -1 EBADF (Bad file descriptor) [pid 5595] close(22 [pid 5050] <... close resumed>) = 0 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./85/file0" [pid 5595] close(23 [pid 5050] <... rmdir resumed>) = 0 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./92" [pid 5595] close(24) = -1 EBADF (Bad file descriptor) [pid 5595] close(25) = -1 EBADF (Bad file descriptor) [pid 5595] close(26) = -1 EBADF (Bad file descriptor) [pid 5595] close(27) = -1 EBADF (Bad file descriptor) [pid 5595] close(28) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5595] close(29 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5595] exit_group(0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... close resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] newfstatat(AT_FDCWD, "./89/binderfs", [pid 5595] <... exit_group resumed>) = ? [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] rmdir("./85"./strace-static-x86_64: Process 5596 attached [pid 5595] +++ exited with 0 +++ [pid 5052] mkdir("./93", 0777 [pid 5051] unlink("./89/binderfs" [pid 5050] <... rmdir resumed>) = 0 [pid 5596] set_robust_list(0x5555566e0760, 24) = 0 [pid 5596] chdir("./86") = 0 [pid 5050] mkdir("./86", 0777 [pid 5596] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 88 [pid 5596] <... prctl resumed>) = 0 [pid 5596] setpgid(0, 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 89 [pid 5049] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5597 attached [pid 5596] <... setpgid resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5597] set_robust_list(0x5555566e0760, 24 [pid 5596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] <... umount2 resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5597] <... set_robust_list resumed>) = 0 [pid 5597] chdir("./87" [pid 5596] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 3 [pid 5050] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5050] close(3) = 0 [pid 5597] <... chdir resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5596] write(3, "1000", 4 [pid 5597] setpgid(0, 0 [pid 5596] <... write resumed>) = 4 [pid 5597] <... setpgid resumed>) = 0 [pid 5596] close(3 [pid 5597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5596] <... close resumed>) = 0 [pid 5597] <... openat resumed>) = 3 [pid 5596] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5596] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5597] write(3, "1000", 4) = 4 [pid 5597] close(3) = 0 [pid 5596] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5597] symlink("/dev/binderfs", "./binderfs" [pid 5596] <... socket resumed>) = 4 ./strace-static-x86_64: Process 5598 attached [pid 5597] <... symlink resumed>) = 0 [pid 5596] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] <... openat resumed>) = 3 [pid 5052] <... openat resumed>) = 3 [pid 5051] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5598] set_robust_list(0x5555566e0760, 24 [pid 5596] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 88 [pid 5598] <... set_robust_list resumed>) = 0 [pid 5597] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5596] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5598] chdir("./86" [pid 5597] <... socket resumed>) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(3, "", [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5598] <... chdir resumed>) = 0 [pid 5597] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5596] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] close(3 [pid 5051] newfstatat(AT_FDCWD, "./89/file0", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5597] <... socket resumed>) = 4 [pid 5596] memfd_create("syzkaller", 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] getdents64(3, [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5598] <... prctl resumed>) = 0 [pid 5597] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5596] <... memfd_create resumed>) = 5 [pid 5598] setpgid(0, 0 [pid 5597] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5598] <... setpgid resumed>) = 0 [pid 5596] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5597] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5596] <... mmap resumed>) = 0x7f1263f98000 [pid 5597] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5598] <... openat resumed>) = 3 [pid 5597] memfd_create("syzkaller", 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 95 [pid 5051] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5598] write(3, "1000", 4 [pid 5596] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] <... openat resumed>) = 4 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(4, "", [pid 5049] newfstatat(AT_FDCWD, "./87/binderfs", [pid 5598] <... write resumed>) = 4 [pid 5597] <... memfd_create resumed>) = 5 [pid 5596] mkdir("./file0", 000 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(4, [pid 5049] unlink("./87/binderfs" [pid 5598] close(3 [pid 5597] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5596] <... mkdir resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5599 attached [pid 5598] <... close resumed>) = 0 [pid 5597] <... mmap resumed>) = 0x7f1263f98000 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] set_robust_list(0x5555566e0760, 24) = 0 [pid 5598] symlink("/dev/binderfs", "./binderfs" [pid 5597] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5596] symlink(NULL, NULL [pid 5051] getdents64(4, [pid 5599] chdir("./93" [pid 5598] <... symlink resumed>) = 0 [pid 5597] mkdir("./file0", 000 [pid 5596] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5599] <... chdir resumed>) = 0 [pid 5051] close(4 [pid 5049] <... umount2 resumed>) = 0 [pid 5599] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] <... prctl resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5599] setpgid(0, 0 [pid 5598] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5597] <... mkdir resumed>) = 0 [pid 5596] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] rmdir("./89/file0" [pid 5049] newfstatat(AT_FDCWD, "./87/file0", [pid 5599] <... setpgid resumed>) = 0 [pid 5598] <... socket resumed>) = 3 [pid 5596] <... mount resumed>) = 0 [pid 5598] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5597] symlink(NULL, NULL [pid 5598] <... socket resumed>) = 4 [pid 5597] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5598] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5597] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5598] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5597] <... mount resumed>) = 0 [pid 5598] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5596] open(NULL, O_RDONLY [pid 5599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5598] memfd_create("syzkaller", 0 [pid 5596] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5599] <... openat resumed>) = 3 [pid 5598] <... memfd_create resumed>) = 5 [pid 5596] close(3 [pid 5599] write(3, "1000", 4 [pid 5598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5597] open(NULL, O_RDONLY [pid 5596] <... close resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] <... write resumed>) = 4 [pid 5598] <... mmap resumed>) = 0x7f1263f98000 [pid 5597] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] getdents64(3, [pid 5599] close(3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5599] <... close resumed>) = 0 [pid 5051] close(3 [pid 5049] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5599] symlink("/dev/binderfs", "./binderfs" [pid 5598] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5597] close(3 [pid 5596] close(4 [pid 5049] <... openat resumed>) = 4 [pid 5598] mkdir("./file0", 000 [pid 5597] <... close resumed>) = 0 [pid 5596] <... close resumed>) = 0 [pid 5599] <... symlink resumed>) = 0 [pid 5598] <... mkdir resumed>) = 0 [pid 5597] close(4 [pid 5596] close(5 [pid 5051] <... close resumed>) = 0 [pid 5049] newfstatat(4, "", [pid 5599] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5597] <... close resumed>) = 0 [pid 5596] <... close resumed>) = 0 [pid 5599] <... socket resumed>) = 3 [pid 5051] rmdir("./89" [pid 5598] symlink(NULL, NULL [pid 5597] close(5 [pid 5596] close(6 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5598] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5597] <... close resumed>) = 0 [pid 5596] close(7 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] getdents64(4, [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5597] close(6 [pid 5596] close(8 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... socket resumed>) = 4 [pid 5598] <... mount resumed>) = 0 [pid 5596] close(9 [pid 5051] mkdir("./90", 0777 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5599] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] getdents64(4, [pid 5597] close(7 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5599] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(10 [pid 5051] <... mkdir resumed>) = 0 [pid 5599] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5598] open(NULL, O_RDONLY [pid 5597] close(8 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(4 [pid 5599] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5598] <... open resumed>) = -1 EFAULT (Bad address) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(11 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5598] close(3 [pid 5597] close(9 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5599] memfd_create("syzkaller", 0 [pid 5598] <... close resumed>) = 0 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(12 [pid 5051] <... openat resumed>) = 3 [pid 5049] rmdir("./87/file0" [pid 5599] <... memfd_create resumed>) = 5 [pid 5597] close(10 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5598] close(4 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5598] <... close resumed>) = 0 [pid 5597] close(11 [pid 5596] close(13 [pid 5598] close(5 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... rmdir resumed>) = 0 [pid 5599] <... mmap resumed>) = 0x7f1263f98000 [pid 5598] <... close resumed>) = 0 [pid 5597] close(12 [pid 5596] close(14 [pid 5051] close(3 [pid 5599] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5598] close(6 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5599] mkdir("./file0", 000 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(13 [pid 5596] close(15 [pid 5051] <... close resumed>) = 0 [pid 5598] close(7 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(14 [pid 5596] close(16 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5598] close(8 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... mkdir resumed>) = 0 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(15 [pid 5596] close(17 [pid 5598] close(9 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(16 [pid 5596] close(18 [pid 5598] close(10 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] symlink(NULL, NULL [pid 5049] close(3 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(17 [pid 5596] close(19 [pid 5599] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5598] close(11 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(18 [pid 5049] <... close resumed>) = 0 [pid 5598] close(12 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(20 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(19 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(13 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(21 [pid 5049] rmdir("./87" [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(20 [pid 5596] close(22 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(14 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5600 attached [pid 5599] <... mount resumed>) = 0 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(21 [pid 5049] <... rmdir resumed>) = 0 [pid 5600] set_robust_list(0x5555566e0760, 24 [pid 5599] open(NULL, O_RDONLY [pid 5598] close(15 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(23 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 92 [pid 5600] <... set_robust_list resumed>) = 0 [pid 5599] <... open resumed>) = -1 EFAULT (Bad address) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(22 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] mkdir("./88", 0777 [pid 5600] chdir("./90" [pid 5599] close(3 [pid 5598] close(16 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(24 [pid 5049] <... mkdir resumed>) = 0 [pid 5600] <... chdir resumed>) = 0 [pid 5599] <... close resumed>) = 0 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(23 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5599] close(4 [pid 5600] <... prctl resumed>) = 0 [pid 5600] setpgid(0, 0 [pid 5599] <... close resumed>) = 0 [pid 5598] close(17 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(25 [pid 5599] close(5 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(24 [pid 5600] <... setpgid resumed>) = 0 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5599] <... close resumed>) = 0 [pid 5598] close(18 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(26 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5599] close(6 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(25 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... openat resumed>) = 3 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(19 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5600] write(3, "1000", 4 [pid 5599] close(7 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(26 [pid 5596] close(27 [pid 5600] <... write resumed>) = 4 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(20 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5600] close(3 [pid 5599] close(8 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(28 [pid 5600] <... close resumed>) = 0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(21 [pid 5597] close(27 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5600] symlink("/dev/binderfs", "./binderfs" [pid 5599] close(9 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(29 [pid 5600] <... symlink resumed>) = 0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(22 [pid 5597] close(28 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5600] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5599] close(10 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] exit_group(0 [pid 5600] <... socket resumed>) = 3 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(23 [pid 5597] close(29 [pid 5049] <... close resumed>) = 0 [pid 5600] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5599] close(11 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... exit_group resumed>) = ? [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5600] <... socket resumed>) = 4 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(24 [pid 5597] exit_group(0 [pid 5600] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5599] close(12 [pid 5600] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5599] close(13 [pid 5600] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] memfd_create("syzkaller", 0 [pid 5599] close(14) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(15) = -1 EBADF (Bad file descriptor) [pid 5599] close(16) = -1 EBADF (Bad file descriptor) [pid 5599] close(17) = -1 EBADF (Bad file descriptor) [pid 5599] close(18) = -1 EBADF (Bad file descriptor) [pid 5600] <... memfd_create resumed>) = 5 [pid 5599] close(19 [pid 5598] close(25 [pid 5597] <... exit_group resumed>) = ? [pid 5600] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] +++ exited with 0 +++ ./strace-static-x86_64: Process 5601 attached [pid 5599] close(20 [pid 5598] close(26 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5601] set_robust_list(0x5555566e0760, 24 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... set_robust_list resumed>) = 0 [pid 5600] <... mmap resumed>) = 0x7f1263f98000 [pid 5599] close(21 [pid 5598] close(27 [pid 5596] +++ exited with 0 +++ [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 90 [pid 5600] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5601] chdir("./88" [pid 5600] mkdir("./file0", 000 [pid 5599] close(22 [pid 5598] close(28 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] <... chdir resumed>) = 0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5601] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5599] close(23 [pid 5598] close(29 [pid 5601] <... prctl resumed>) = 0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5601] setpgid(0, 0 [pid 5599] close(24 [pid 5598] exit_group(0 [pid 5053] newfstatat(3, "", [pid 5048] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] <... setpgid resumed>) = 0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5600] <... mkdir resumed>) = 0 [pid 5599] close(25 [pid 5598] +++ exited with 0 +++ [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5600] symlink(NULL, NULL [pid 5048] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5601] <... openat resumed>) = 3 [pid 5599] close(26 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5600] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5599] close(27 [pid 5050] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5600] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5599] close(28 [pid 5050] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] newfstatat(3, "", [pid 5601] write(3, "1000", 4 [pid 5600] <... mount resumed>) = 0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... openat resumed>) = 3 [pid 5601] <... write resumed>) = 4 [pid 5599] close(29 [pid 5053] newfstatat(AT_FDCWD, "./87/binderfs", [pid 5050] newfstatat(3, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5601] close(3 [pid 5600] open(NULL, O_RDONLY [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5601] <... close resumed>) = 0 [pid 5053] unlink("./87/binderfs" [pid 5050] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5601] symlink("/dev/binderfs", "./binderfs" [pid 5053] <... unlink resumed>) = 0 [pid 5601] <... symlink resumed>) = 0 [pid 5600] <... open resumed>) = -1 EFAULT (Bad address) [pid 5599] exit_group(0 [pid 5048] getdents64(3, [pid 5600] close(3 [pid 5599] <... exit_group resumed>) = ? [pid 5600] <... close resumed>) = 0 [pid 5050] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5601] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5600] close(4 [pid 5053] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] <... socket resumed>) = 3 [pid 5600] <... close resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./86/binderfs", [pid 5600] close(5 [pid 5053] <... umount2 resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5053] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] unlink("./86/binderfs" [pid 5601] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5600] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... unlink resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./86/binderfs", [pid 5601] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] newfstatat(AT_FDCWD, "./87/file0", [pid 5601] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5601] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5048] unlink("./86/binderfs" [pid 5601] memfd_create("syzkaller", 0 [pid 5600] close(6 [pid 5053] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... unlink resumed>) = 0 [pid 5600] close(7) = -1 EBADF (Bad file descriptor) [pid 5600] close(8) = -1 EBADF (Bad file descriptor) [pid 5601] <... memfd_create resumed>) = 5 [pid 5600] close(9 [pid 5599] +++ exited with 0 +++ [pid 5053] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = 0 [pid 5048] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5601] <... mmap resumed>) = 0x7f1263f98000 [pid 5600] close(10 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5048] <... umount2 resumed>) = 0 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] newfstatat(4, "", [pid 5050] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5600] close(11 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] mkdir("./file0", 000 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] <... restart_syscall resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./86/file0", [pid 5601] <... mkdir resumed>) = 0 [pid 5600] close(12 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(AT_FDCWD, "./86/file0", [pid 5600] close(13) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5600] close(14 [pid 5053] getdents64(4, [pid 5052] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] symlink(NULL, NULL [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5600] close(15 [pid 5053] close(4 [pid 5052] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... openat resumed>) = 4 [pid 5601] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] <... mount resumed>) = 0 [pid 5600] close(16 [pid 5053] rmdir("./87/file0" [pid 5052] <... openat resumed>) = 3 [pid 5050] newfstatat(4, "", [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5048] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5600] close(17) = -1 EBADF (Bad file descriptor) [pid 5600] close(18) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5600] close(19 [pid 5052] getdents64(3, [pid 5048] newfstatat(4, "", [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(20 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] getdents64(4, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5600] close(21 [pid 5048] getdents64(4, [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5600] close(22 [pid 5052] newfstatat(AT_FDCWD, "./93/binderfs", [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] open(NULL, O_RDONLY [pid 5600] close(23 [pid 5053] getdents64(3, [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5601] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(4, [pid 5601] close(3 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5052] unlink("./93/binderfs" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5053] <... close resumed>) = 0 [pid 5050] close(4) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5601] <... close resumed>) = 0 [pid 5600] close(24 [pid 5053] rmdir("./87" [pid 5052] <... unlink resumed>) = 0 [pid 5050] rmdir("./86/file0" [pid 5048] close(4 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] close(4 [pid 5600] close(25 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5601] <... close resumed>) = 0 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5048] rmdir("./86/file0" [pid 5601] close(5 [pid 5600] close(26 [pid 5052] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(3, [pid 5601] <... close resumed>) = 0 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./88", 0777 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5600] close(27 [pid 5048] <... rmdir resumed>) = 0 [pid 5601] close(6 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] close(3 [pid 5048] getdents64(3, [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(28 [pid 5052] newfstatat(AT_FDCWD, "./93/file0", [pid 5050] <... close resumed>) = 0 [pid 5601] close(7 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./86" [pid 5601] close(8 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] <... rmdir resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(29 [pid 5048] close(3 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... close resumed>) = 0 [pid 5601] close(9 [pid 5600] exit_group(0 [pid 5053] <... openat resumed>) = 3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] rmdir("./86" [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5601] close(10 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] mkdir("./87", 0777 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(11) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5050] <... mkdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5601] close(12 [pid 5600] <... exit_group resumed>) = ? [pid 5053] <... close resumed>) = 0 [pid 5052] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5601] close(13) = -1 EBADF (Bad file descriptor) [pid 5601] close(14) = -1 EBADF (Bad file descriptor) [pid 5601] close(15) = -1 EBADF (Bad file descriptor) [pid 5601] close(16) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5601] close(17 [pid 5052] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... openat resumed>) = 3 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(18 [pid 5052] <... openat resumed>) = 4 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5048] mkdir("./87", 0777 [pid 5601] close(19 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5601] close(20 [pid 5050] close(3 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5601] close(21 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] +++ exited with 0 +++ [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5052] getdents64(4, [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5602 attached [pid 5601] close(22 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 90 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(23 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5602] set_robust_list(0x5555566e0760, 24 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5601] close(24 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5602] <... set_robust_list resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5601] close(25 [pid 5051] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5603 attached [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] chdir("./88" [pid 5601] close(26 [pid 5052] close(4 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 89 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5603] set_robust_list(0x5555566e0760, 24 [pid 5602] <... chdir resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] close(3 [pid 5603] <... set_robust_list resumed>) = 0 [pid 5602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5601] close(27 [pid 5603] chdir("./87" [pid 5602] <... prctl resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./93/file0" [pid 5051] <... openat resumed>) = 3 [pid 5048] <... close resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5601] close(28) = -1 EBADF (Bad file descriptor) [pid 5603] <... chdir resumed>) = 0 [pid 5601] close(29 [pid 5052] <... rmdir resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5601] exit_group(0 [pid 5052] getdents64(3, [pid 5051] getdents64(3, [pid 5603] <... prctl resumed>) = 0 [pid 5602] setpgid(0, 0 [pid 5603] setpgid(0, 0 [pid 5601] <... exit_group resumed>) = ? [pid 5603] <... setpgid resumed>) = 0 [pid 5602] <... setpgid resumed>) = 0 [pid 5601] +++ exited with 0 +++ [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] close(3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5604 attached [pid 5603] <... openat resumed>) = 3 [pid 5052] <... close resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./90/binderfs", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 89 [pid 5604] set_robust_list(0x5555566e0760, 24 [pid 5602] <... openat resumed>) = 3 [pid 5052] rmdir("./93" [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5604] <... set_robust_list resumed>) = 0 [pid 5603] write(3, "1000", 4 [pid 5049] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5603] <... write resumed>) = 4 [pid 5603] close(3) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5603] symlink("/dev/binderfs", "./binderfs" [pid 5604] chdir("./87" [pid 5603] <... symlink resumed>) = 0 [pid 5602] write(3, "1000", 4 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] unlink("./90/binderfs" [pid 5049] newfstatat(3, "", [pid 5604] <... chdir resumed>) = 0 [pid 5602] <... write resumed>) = 4 [pid 5051] <... unlink resumed>) = 0 [pid 5604] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5602] close(3 [pid 5604] <... prctl resumed>) = 0 [pid 5051] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5602] <... close resumed>) = 0 [pid 5604] setpgid(0, 0) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5603] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5602] symlink("/dev/binderfs", "./binderfs" [pid 5049] getdents64(3, [pid 5604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5603] <... socket resumed>) = 3 [pid 5602] <... symlink resumed>) = 0 [pid 5052] mkdir("./94", 0777 [pid 5051] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5604] <... openat resumed>) = 3 [pid 5603] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5602] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5603] <... socket resumed>) = 4 [pid 5602] <... socket resumed>) = 3 [pid 5051] newfstatat(AT_FDCWD, "./90/file0", [pid 5049] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5603] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5602] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5603] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5602] <... socket resumed>) = 4 [pid 5051] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5603] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./88/binderfs", [pid 5603] memfd_create("syzkaller", 0 [pid 5602] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5604] write(3, "1000", 4 [pid 5602] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5604] <... write resumed>) = 4 [pid 5602] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5604] close(3 [pid 5603] <... memfd_create resumed>) = 5 [pid 5602] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... mkdir resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5049] unlink("./88/binderfs" [pid 5604] <... close resumed>) = 0 [pid 5603] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5602] memfd_create("syzkaller", 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] newfstatat(4, "", [pid 5049] <... unlink resumed>) = 0 [pid 5603] <... mmap resumed>) = 0x7f1263f98000 [pid 5604] symlink("/dev/binderfs", "./binderfs" [pid 5602] <... memfd_create resumed>) = 5 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5603] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] <... openat resumed>) = 3 [pid 5049] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5603] mkdir("./file0", 000 [pid 5602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] getdents64(4, [pid 5604] <... symlink resumed>) = 0 [pid 5603] <... mkdir resumed>) = 0 [pid 5602] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] <... umount2 resumed>) = 0 [pid 5602] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5049] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5603] symlink(NULL, NULL [pid 5049] newfstatat(AT_FDCWD, "./88/file0", [pid 5604] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5603] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5602] mkdir("./file0", 000 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5603] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] close(3 [pid 5051] getdents64(4, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5604] <... socket resumed>) = 3 [pid 5603] <... mount resumed>) = 0 [pid 5602] <... mkdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5049] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5603] open(NULL, O_RDONLY [pid 5049] getdents64(4, [pid 5604] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5603] <... open resumed>) = -1 EFAULT (Bad address) [pid 5602] symlink(NULL, NULL [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] close(4 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5603] close(3 [pid 5049] getdents64(4, [pid 5603] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5603] close(4) = 0 [pid 5049] close(4) = 0 [pid 5049] rmdir("./88/file0" [pid 5603] close(5 [pid 5051] <... close resumed>) = 0 [pid 5602] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5604] <... socket resumed>) = 4 [pid 5603] <... close resumed>) = 0 [pid 5602] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5604] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5051] rmdir("./90/file0"./strace-static-x86_64: Process 5605 attached [pid 5603] close(6) = -1 EBADF (Bad file descriptor) [pid 5603] close(7) = -1 EBADF (Bad file descriptor) [pid 5605] set_robust_list(0x5555566e0760, 24 [pid 5604] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5603] close(8 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 96 [pid 5051] <... rmdir resumed>) = 0 [pid 5605] <... set_robust_list resumed>) = 0 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5605] chdir("./94" [pid 5604] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5602] <... mount resumed>) = 0 [pid 5051] getdents64(3, [pid 5604] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5602] open(NULL, O_RDONLY [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5604] memfd_create("syzkaller", 0 [pid 5603] close(9 [pid 5602] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] close(3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5605] <... chdir resumed>) = 0 [pid 5604] <... memfd_create resumed>) = 5 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(3 [pid 5051] <... close resumed>) = 0 [pid 5049] close(3 [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5603] close(10 [pid 5051] rmdir("./90" [pid 5049] <... close resumed>) = 0 [pid 5605] <... prctl resumed>) = 0 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = 0 [pid 5603] close(11 [pid 5605] setpgid(0, 0 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./88" [pid 5605] <... setpgid resumed>) = 0 [pid 5604] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5603] close(12 [pid 5602] close(4 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5604] <... mmap resumed>) = 0x7f1263f98000 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5603] close(13 [pid 5602] <... close resumed>) = 0 [pid 5051] mkdir("./91", 0777 [pid 5604] mkdir("./file0", 000 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... openat resumed>) = 3 [pid 5604] <... mkdir resumed>) = 0 [pid 5603] close(14) = -1 EBADF (Bad file descriptor) [pid 5049] mkdir("./89", 0777 [pid 5603] close(15) = -1 EBADF (Bad file descriptor) [pid 5605] write(3, "1000", 4 [pid 5603] close(16 [pid 5605] <... write resumed>) = 4 [pid 5049] <... mkdir resumed>) = 0 [pid 5605] close(3 [pid 5604] symlink(NULL, NULL [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5603] close(17 [pid 5602] close(5 [pid 5051] <... mkdir resumed>) = 0 [pid 5605] <... close resumed>) = 0 [pid 5604] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5605] symlink("/dev/binderfs", "./binderfs" [pid 5603] close(18 [pid 5602] close(6 [pid 5051] <... openat resumed>) = 3 [pid 5049] <... openat resumed>) = 3 [pid 5605] <... symlink resumed>) = 0 [pid 5604] <... mount resumed>) = 0 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5604] open(NULL, O_RDONLY [pid 5603] close(19 [pid 5602] close(7 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5605] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5604] <... open resumed>) = -1 EFAULT (Bad address) [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5605] <... socket resumed>) = 3 [pid 5604] close(3 [pid 5603] close(20 [pid 5602] close(8 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5605] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5604] <... close resumed>) = 0 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5605] <... socket resumed>) = 4 [pid 5604] close(4 [pid 5603] close(21 [pid 5602] close(9 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] close(3 [pid 5604] <... close resumed>) = 0 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(5 [pid 5602] close(10 [pid 5605] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5604] <... close resumed>) = 0 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5605] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5604] close(6 [pid 5603] close(22 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5605] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5604] close(7 [pid 5603] close(23 [pid 5602] close(11 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(12 [pid 5605] memfd_create("syzkaller", 0 [pid 5604] close(8 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... memfd_create resumed>) = 5 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(24 [pid 5602] close(13 [pid 5605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5604] close(9 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(25 [pid 5602] close(14./strace-static-x86_64: Process 5607 attached [pid 5605] <... mmap resumed>) = 0x7f1263f98000 [pid 5604] close(10 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 93 ./strace-static-x86_64: Process 5606 attached [pid 5605] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5603] close(26 [pid 5602] close(15 [pid 5607] set_robust_list(0x5555566e0760, 24 [pid 5605] mkdir("./file0", 000 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] set_robust_list(0x5555566e0760, 24 [pid 5607] <... set_robust_list resumed>) = 0 [pid 5605] <... mkdir resumed>) = 0 [pid 5604] close(11 [pid 5603] close(27 [pid 5602] close(16 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 91 [pid 5606] <... set_robust_list resumed>) = 0 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] chdir("./89" [pid 5607] chdir("./91" [pid 5604] close(12 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(17 [pid 5606] <... chdir resumed>) = 0 [pid 5607] <... chdir resumed>) = 0 [pid 5605] symlink(NULL, NULL [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(28 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5607] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5605] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5604] close(13 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... prctl resumed>) = 0 [pid 5607] <... prctl resumed>) = 0 [pid 5605] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(29 [pid 5602] close(18 [pid 5606] setpgid(0, 0 [pid 5607] setpgid(0, 0 [pid 5605] <... mount resumed>) = 0 [pid 5604] close(14 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... setpgid resumed>) = 0 [pid 5607] <... setpgid resumed>) = 0 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5604] close(15 [pid 5603] exit_group(0 [pid 5602] close(19 [pid 5606] <... openat resumed>) = 3 [pid 5607] <... openat resumed>) = 3 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] open(NULL, O_RDONLY [pid 5604] close(16 [pid 5603] <... exit_group resumed>) = ? [pid 5602] close(20 [pid 5607] write(3, "1000", 4 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... open resumed>) = -1 EFAULT (Bad address) [pid 5606] write(3, "1000", 4 [pid 5605] close(3 [pid 5604] close(17 [pid 5607] <... write resumed>) = 4 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(3 [pid 5604] close(18 [pid 5602] close(21 [pid 5607] <... close resumed>) = 0 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... write resumed>) = 4 [pid 5607] symlink("/dev/binderfs", "./binderfs" [pid 5605] <... close resumed>) = 0 [pid 5604] close(19 [pid 5602] close(22 [pid 5606] close(3 [pid 5605] close(4 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = 0 [pid 5607] <... symlink resumed>) = 0 [pid 5604] close(20 [pid 5606] symlink("/dev/binderfs", "./binderfs" [pid 5607] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5605] <... close resumed>) = 0 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(23 [pid 5606] <... symlink resumed>) = 0 [pid 5607] <... socket resumed>) = 3 [pid 5605] close(5 [pid 5604] close(21 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5607] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5605] <... close resumed>) = 0 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] +++ exited with 0 +++ [pid 5602] close(24 [pid 5606] <... socket resumed>) = 3 [pid 5607] <... socket resumed>) = 4 [pid 5605] close(6 [pid 5604] close(22 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5607] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(25 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5606] <... socket resumed>) = 4 [pid 5607] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5605] close(7 [pid 5604] close(23 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5607] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(26 [pid 5050] <... restart_syscall resumed>) = 0 [pid 5606] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5607] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5605] close(8 [pid 5604] close(24 [pid 5606] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5607] memfd_create("syzkaller", 0 [pid 5605] close(9 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5602] close(27 [pid 5604] close(25 [pid 5606] memfd_create("syzkaller", 0 [pid 5607] <... memfd_create resumed>) = 5 [pid 5605] close(10 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... memfd_create resumed>) = 5 [pid 5607] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5606] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5607] <... mmap resumed>) = 0x7f1263f98000 [pid 5605] close(11 [pid 5604] close(26 [pid 5602] close(28 [pid 5050] <... openat resumed>) = 3 [pid 5607] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... mmap resumed>) = 0x7f1263f98000 [pid 5605] close(12 [pid 5604] close(27 [pid 5602] close(29 [pid 5050] newfstatat(3, "", [pid 5606] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5607] mkdir("./file0", 000 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5606] mkdir("./file0", 000 [pid 5605] close(13 [pid 5604] close(28 [pid 5606] <... mkdir resumed>) = 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] exit_group(0 [pid 5050] getdents64(3, [pid 5605] close(14 [pid 5604] close(29) = -1 EBADF (Bad file descriptor) [pid 5602] <... exit_group resumed>) = ? [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] exit_group(0 [pid 5605] close(15 [pid 5604] <... exit_group resumed>) = ? [pid 5606] symlink(NULL, NULL [pid 5607] <... mkdir resumed>) = 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5606] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5605] close(16 [pid 5606] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] close(17 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] close(18) = -1 EBADF (Bad file descriptor) [pid 5606] <... mount resumed>) = 0 [pid 5607] symlink(NULL, NULL [pid 5605] close(19 [pid 5050] newfstatat(AT_FDCWD, "./87/binderfs", [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] close(20 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5607] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] unlink("./87/binderfs" [pid 5606] open(NULL, O_RDONLY [pid 5605] close(21) = -1 EBADF (Bad file descriptor) [pid 5606] <... open resumed>) = -1 EFAULT (Bad address) [pid 5605] close(22) = -1 EBADF (Bad file descriptor) [pid 5606] close(3 [pid 5605] close(23 [pid 5606] <... close resumed>) = 0 [pid 5607] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] close(24 [pid 5606] close(4 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] close(25 [pid 5606] <... close resumed>) = 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] close(26 [pid 5607] <... mount resumed>) = 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(5 [pid 5607] open(NULL, O_RDONLY [pid 5605] close(27 [pid 5606] <... close resumed>) = 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(6) = -1 EBADF (Bad file descriptor) [pid 5605] close(28 [pid 5050] <... unlink resumed>) = 0 [pid 5606] close(7 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] close(29 [pid 5050] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5607] <... open resumed>) = -1 EFAULT (Bad address) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(8) = -1 EBADF (Bad file descriptor) [pid 5605] exit_group(0 [pid 5050] <... umount2 resumed>) = 0 [pid 5606] close(9) = -1 EBADF (Bad file descriptor) [pid 5606] close(10 [pid 5605] <... exit_group resumed>) = ? [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(3 [pid 5602] +++ exited with 0 +++ [pid 5606] close(11 [pid 5604] +++ exited with 0 +++ [pid 5050] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5606] close(12 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] newfstatat(AT_FDCWD, "./87/file0", [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = 0 [pid 5606] close(13 [pid 5607] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = 0 [pid 5050] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] close(14 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5607] close(5 [pid 5606] close(15 [pid 5607] <... close resumed>) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5607] close(6) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(7 [pid 5050] newfstatat(4, "", [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5607] close(8 [pid 5606] close(16 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(9 [pid 5050] getdents64(4, [pid 5606] close(17 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(10 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(4, [pid 5606] close(18 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(11 [pid 5053] <... openat resumed>) = 3 [pid 5050] close(4 [pid 5048] <... openat resumed>) = 3 [pid 5606] close(19 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] +++ exited with 0 +++ [pid 5053] newfstatat(3, "", [pid 5048] newfstatat(3, "", [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(12 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5050] <... close resumed>) = 0 [pid 5606] close(20 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5050] rmdir("./87/file0" [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(13 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... rmdir resumed>) = 0 [pid 5606] close(21 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(3, [pid 5048] getdents64(3, [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(14 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5606] close(22 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./88/binderfs", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] close(3 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(15 [pid 5052] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... close resumed>) = 0 [pid 5606] close(23 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5050] rmdir("./87" [pid 5048] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(16 [pid 5053] unlink("./88/binderfs" [pid 5052] newfstatat(3, "", [pid 5050] <... rmdir resumed>) = 0 [pid 5606] close(24 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5050] mkdir("./88", 0777 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(17 [pid 5050] <... mkdir resumed>) = 0 [pid 5606] close(25 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(AT_FDCWD, "./87/binderfs", [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(26 [pid 5053] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] close(18 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] getdents64(3, [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5606] close(27) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... openat resumed>) = 3 [pid 5048] unlink("./87/binderfs" [pid 5606] close(28 [pid 5607] close(19 [pid 5052] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] <... unlink resumed>) = 0 [pid 5606] close(29) = -1 EBADF (Bad file descriptor) [pid 5607] close(20 [pid 5053] newfstatat(AT_FDCWD, "./88/file0", [pid 5052] newfstatat(AT_FDCWD, "./94/binderfs", [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] exit_group(0 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5606] <... exit_group resumed>) = ? [pid 5607] close(21 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5053] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] close(3) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./94/binderfs" [pid 5048] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5607] close(22 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5607] close(23 [pid 5053] newfstatat(4, "", [pid 5052] <... unlink resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./87/file0", [pid 5607] close(24 [pid 5606] +++ exited with 0 +++ [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5607] close(25 [pid 5053] getdents64(4, [pid 5052] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 90 [pid 5048] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5608 attached [pid 5607] close(26 [pid 5053] getdents64(4, [pid 5052] newfstatat(AT_FDCWD, "./94/file0", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5608] set_robust_list(0x5555566e0760, 24 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5608] <... set_robust_list resumed>) = 0 [pid 5607] close(27 [pid 5053] close(4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5608] chdir("./88" [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5608] <... chdir resumed>) = 0 [pid 5607] close(28 [pid 5053] rmdir("./88/file0" [pid 5052] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 4 [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(3, "", [pid 5608] <... prctl resumed>) = 0 [pid 5607] close(29 [pid 5048] newfstatat(4, "", [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] setpgid(0, 0 [pid 5607] exit_group(0 [pid 5052] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5608] <... setpgid resumed>) = 0 [pid 5607] <... exit_group resumed>) = ? [pid 5053] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5049] getdents64(3, [pid 5052] newfstatat(4, "", [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] getdents64(4, [pid 5053] close(3 [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] rmdir("./88" [pid 5049] newfstatat(AT_FDCWD, "./89/binderfs", [pid 5053] <... rmdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] unlink("./89/binderfs") = 0 [pid 5049] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] mkdir("./89", 0777) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5049] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./89/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] <... openat resumed>) = 4 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] close(3 [pid 5049] newfstatat(4, "", [pid 5053] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5608] <... openat resumed>) = 3 [pid 5052] getdents64(4, [pid 5049] getdents64(4, [pid 5048] getdents64(4, [pid 5607] +++ exited with 0 +++ [pid 5608] write(3, "1000", 4 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5608] <... write resumed>) = 4 [pid 5052] getdents64(4, [pid 5048] close(4 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5608] close(3 [pid 5052] close(4 [pid 5049] getdents64(4, [pid 5048] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] rmdir("./87/file0" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] close(4) = 0 [pid 5049] rmdir("./89/file0" [pid 5608] <... close resumed>) = 0 [pid 5052] rmdir("./94/file0" [pid 5051] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5608] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5609 attached [pid 5052] <... rmdir resumed>) = 0 [pid 5048] getdents64(3, [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 91 [pid 5609] set_robust_list(0x5555566e0760, 24 [pid 5051] <... openat resumed>) = 3 [pid 5049] getdents64(3, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5608] <... symlink resumed>) = 0 [pid 5051] newfstatat(3, "", [pid 5048] close(3 [pid 5608] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] getdents64(3, [pid 5609] <... set_robust_list resumed>) = 0 [pid 5608] <... socket resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5609] chdir("./89" [pid 5608] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] getdents64(3, [pid 5049] close(3 [pid 5048] rmdir("./87" [pid 5608] <... socket resumed>) = 4 [pid 5609] <... chdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] rmdir("./89" [pid 5609] <... prctl resumed>) = 0 [pid 5609] setpgid(0, 0) = 0 [pid 5608] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] close(3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... rmdir resumed>) = 0 [pid 5608] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] <... close resumed>) = 0 [pid 5051] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5048] mkdir("./88", 0777 [pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5608] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] rmdir("./94" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... mkdir resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./91/binderfs", [pid 5609] <... openat resumed>) = 3 [pid 5049] mkdir("./90", 0777 [pid 5609] write(3, "1000", 4 [pid 5608] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5609] <... write resumed>) = 4 [pid 5608] memfd_create("syzkaller", 0 [pid 5048] <... openat resumed>) = 3 [pid 5052] mkdir("./95", 0777 [pid 5051] unlink("./91/binderfs" [pid 5609] close(3) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5609] symlink("/dev/binderfs", "./binderfs" [pid 5608] <... memfd_create resumed>) = 5 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5609] <... symlink resumed>) = 0 [pid 5608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] <... umount2 resumed>) = 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] close(3 [pid 5608] <... mmap resumed>) = 0x7f1263f98000 [pid 5608] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... close resumed>) = 0 [pid 5609] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] <... openat resumed>) = 3 [pid 5609] <... socket resumed>) = 3 [pid 5608] mkdir("./file0", 000 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] close(3 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5609] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] newfstatat(AT_FDCWD, "./91/file0", [pid 5049] <... close resumed>) = 0 [pid 5609] <... socket resumed>) = 4 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5609] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5609] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5609] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5609] memfd_create("syzkaller", 0 [pid 5608] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5609] <... memfd_create resumed>) = 5 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5608] symlink(NULL, NULL [pid 5052] close(3 [pid 5051] <... openat resumed>) = 4 [pid 5609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5608] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5609] <... mmap resumed>) = 0x7f1263f98000 [pid 5608] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] <... close resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5609] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5609] mkdir("./file0", 000./strace-static-x86_64: Process 5611 attached [pid 5608] <... mount resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5611] set_robust_list(0x5555566e0760, 24 [pid 5609] <... mkdir resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 92 [pid 5611] <... set_robust_list resumed>) = 0 [pid 5611] chdir("./90" [pid 5609] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5611] <... chdir resumed>) = 0 [pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5611] setpgid(0, 0 [pid 5609] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] getdents64(4, [pid 5611] <... setpgid resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 90 [pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5609] <... mount resumed>) = 0 [pid 5608] open(NULL, O_RDONLY [pid 5051] getdents64(4, [pid 5611] write(3, "1000", 4 [pid 5609] open(NULL, O_RDONLY [pid 5611] <... write resumed>) = 4 [pid 5609] <... open resumed>) = -1 EFAULT (Bad address) [pid 5611] close(3) = 0 [pid 5611] symlink("/dev/binderfs", "./binderfs" [pid 5609] close(3 [pid 5611] <... symlink resumed>) = 0 [pid 5609] <... close resumed>) = 0 [pid 5609] close(4) = 0 [pid 5611] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5609] close(5 [pid 5611] <... socket resumed>) = 3 [pid 5609] <... close resumed>) = 0 [pid 5611] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5609] close(6 [pid 5611] <... socket resumed>) = 4 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] close(7 [pid 5611] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] close(8 [pid 5611] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5609] close(9 [pid 5611] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] memfd_create("syzkaller", 0 [pid 5609] close(10) = -1 EBADF (Bad file descriptor) [pid 5609] close(11) = -1 EBADF (Bad file descriptor) [pid 5611] <... memfd_create resumed>) = 5 [pid 5609] close(12./strace-static-x86_64: Process 5610 attached [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] close(4 [pid 5610] set_robust_list(0x5555566e0760, 24 [pid 5609] close(13 [pid 5608] close(3 [pid 5051] <... close resumed>) = 0 ./strace-static-x86_64: Process 5612 attached [pid 5610] <... set_robust_list resumed>) = 0 [pid 5611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 97 [pid 5051] rmdir("./91/file0" [pid 5612] set_robust_list(0x5555566e0760, 24 [pid 5611] <... mmap resumed>) = 0x7f1263f98000 [pid 5609] close(14 [pid 5051] <... rmdir resumed>) = 0 [pid 5610] chdir("./88" [pid 5608] close(4 [pid 5051] getdents64(3, [pid 5610] <... chdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] close(3 [pid 5612] <... set_robust_list resumed>) = 0 [pid 5610] <... prctl resumed>) = 0 [pid 5611] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5612] chdir("./95" [pid 5611] mkdir("./file0", 000 [pid 5609] close(15 [pid 5612] <... chdir resumed>) = 0 [pid 5611] <... mkdir resumed>) = 0 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./91" [pid 5608] close(5 [pid 5610] setpgid(0, 0 [pid 5612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5609] close(16 [pid 5612] <... prctl resumed>) = 0 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] setpgid(0, 0 [pid 5610] <... setpgid resumed>) = 0 [pid 5609] close(17 [pid 5608] <... close resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5612] <... setpgid resumed>) = 0 [pid 5610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5611] symlink(NULL, NULL [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(6 [pid 5612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5611] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5609] close(18 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./92", 0777 [pid 5612] <... openat resumed>) = 3 [pid 5610] <... openat resumed>) = 3 [pid 5611] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(7 [pid 5610] write(3, "1000", 4 [pid 5611] <... mount resumed>) = 0 [pid 5609] close(19 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] <... write resumed>) = 4 [pid 5608] close(8 [pid 5612] write(3, "1000", 4 [pid 5610] close(3 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... mkdir resumed>) = 0 [pid 5612] <... write resumed>) = 4 [pid 5610] <... close resumed>) = 0 [pid 5609] close(20 [pid 5608] close(9 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5612] close(3 [pid 5610] symlink("/dev/binderfs", "./binderfs" [pid 5611] open(NULL, O_RDONLY [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = 0 [pid 5611] <... open resumed>) = -1 EFAULT (Bad address) [pid 5609] close(21 [pid 5608] close(10 [pid 5051] <... openat resumed>) = 3 [pid 5612] symlink("/dev/binderfs", "./binderfs" [pid 5610] <... symlink resumed>) = 0 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... symlink resumed>) = 0 [pid 5610] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5611] close(3 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(11 [pid 5610] <... socket resumed>) = 3 [pid 5609] close(22 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5611] <... close resumed>) = 0 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(12 [pid 5612] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5609] close(23 [pid 5612] <... socket resumed>) = 3 [pid 5610] <... socket resumed>) = 4 [pid 5611] close(4 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5612] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5610] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5611] <... close resumed>) = 0 [pid 5609] close(24 [pid 5608] close(13 [pid 5612] <... socket resumed>) = 4 [pid 5610] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5611] close(5 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] close(3 [pid 5610] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5611] <... close resumed>) = 0 [pid 5610] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5609] close(25 [pid 5608] close(14 [pid 5051] <... close resumed>) = 0 [pid 5612] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5610] memfd_create("syzkaller", 0 [pid 5611] close(6 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5612] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5610] <... memfd_create resumed>) = 5 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] close(26 [pid 5608] close(15 [pid 5612] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5611] close(7 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] close(27 [pid 5612] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5611] close(8 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] memfd_create("syzkaller", 0 [pid 5609] close(28) = -1 EBADF (Bad file descriptor) [pid 5612] <... memfd_create resumed>) = 5 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] close(29 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5613 attached [pid 5612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5611] close(9 [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(16 [pid 5613] set_robust_list(0x5555566e0760, 24 [pid 5610] <... mmap resumed>) = 0x7f1263f98000 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] exit_group(0 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 94 [pid 5613] <... set_robust_list resumed>) = 0 [pid 5610] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5611] close(10 [pid 5608] close(17 [pid 5613] chdir("./92" [pid 5612] <... mmap resumed>) = 0x7f1263f98000 [pid 5610] mkdir("./file0", 000 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... exit_group resumed>) = ? [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... chdir resumed>) = 0 [pid 5612] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5610] <... mkdir resumed>) = 0 [pid 5611] close(11 [pid 5609] +++ exited with 0 +++ [pid 5608] close(18 [pid 5612] mkdir("./file0", 000 [pid 5610] symlink(NULL, NULL [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5613] <... prctl resumed>) = 0 [pid 5612] <... mkdir resumed>) = 0 [pid 5610] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5611] close(12 [pid 5608] close(19 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5613] setpgid(0, 0 [pid 5610] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5613] <... setpgid resumed>) = 0 [pid 5611] close(13 [pid 5608] close(20 [pid 5613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5612] symlink(NULL, NULL [pid 5610] <... mount resumed>) = 0 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5611] close(14 [pid 5608] close(21 [pid 5053] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5613] <... openat resumed>) = 3 [pid 5612] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5610] open(NULL, O_RDONLY [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5613] write(3, "1000", 4 [pid 5612] <... mount resumed>) = 0 [pid 5610] <... open resumed>) = -1 EFAULT (Bad address) [pid 5611] close(15 [pid 5053] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5613] <... write resumed>) = 4 [pid 5610] close(3 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(22 [pid 5053] <... openat resumed>) = 3 [pid 5611] close(16 [pid 5613] close(3 [pid 5610] <... close resumed>) = 0 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5613] <... close resumed>) = 0 [pid 5612] open(NULL, O_RDONLY [pid 5610] close(4 [pid 5611] close(17 [pid 5608] close(23 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5613] symlink("/dev/binderfs", "./binderfs" [pid 5612] <... open resumed>) = -1 EFAULT (Bad address) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... symlink resumed>) = 0 [pid 5612] close(3 [pid 5610] <... close resumed>) = 0 [pid 5611] close(18 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5613] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5612] <... close resumed>) = 0 [pid 5610] close(5 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(24 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] <... close resumed>) = 0 [pid 5611] close(19 [pid 5608] close(25 [pid 5610] close(6 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(26 [pid 5610] close(7 [pid 5613] <... socket resumed>) = 3 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(27 [pid 5610] close(8 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(9 [pid 5608] close(28 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(10) = -1 EBADF (Bad file descriptor) [pid 5610] close(11) = -1 EBADF (Bad file descriptor) [pid 5610] close(12) = -1 EBADF (Bad file descriptor) [pid 5611] close(20 [pid 5613] <... socket resumed>) = 4 [pid 5610] close(13) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(14) = -1 EBADF (Bad file descriptor) [pid 5611] close(21 [pid 5610] close(15 [pid 5608] close(29 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(16) = -1 EBADF (Bad file descriptor) [pid 5608] exit_group(0 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(22 [pid 5608] <... exit_group resumed>) = ? [pid 5610] close(17 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(23) = -1 EBADF (Bad file descriptor) [pid 5612] close(4 [pid 5611] close(24 [pid 5612] <... close resumed>) = 0 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(25) = -1 EBADF (Bad file descriptor) [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(18 [pid 5613] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5611] close(26) = -1 EBADF (Bad file descriptor) [pid 5611] close(27 [pid 5612] close(5 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5613] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5613] memfd_create("syzkaller", 0 [pid 5612] <... close resumed>) = 0 [pid 5611] close(28 [pid 5053] newfstatat(AT_FDCWD, "./89/binderfs", [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5611] close(29 [pid 5053] unlink("./89/binderfs" [pid 5612] close(6 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(19 [pid 5611] exit_group(0 [pid 5053] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5613] <... memfd_create resumed>) = 5 [pid 5612] close(7 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... exit_group resumed>) = ? [pid 5608] +++ exited with 0 +++ [pid 5053] <... umount2 resumed>) = 0 [pid 5613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(20 [pid 5611] +++ exited with 0 +++ [pid 5053] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5613] <... mmap resumed>) = 0x7f1263f98000 [pid 5612] close(8 [pid 5610] close(21 [pid 5053] newfstatat(AT_FDCWD, "./89/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5613] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5613] mkdir("./file0", 000 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5612] close(9 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(22 [pid 5053] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5613] <... mkdir resumed>) = 0 [pid 5612] close(10 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5050] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5613] symlink(NULL, NULL [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(23 [pid 5053] newfstatat(4, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5613] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5612] close(11 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5613] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(24 [pid 5053] getdents64(4, [pid 5050] <... openat resumed>) = 3 [pid 5612] close(12 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5050] newfstatat(3, "", [pid 5613] <... mount resumed>) = 0 [pid 5612] close(13 [pid 5610] close(25 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] newfstatat(3, "", [pid 5613] open(NULL, O_RDONLY [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(3, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5612] close(14 [pid 5053] close(4 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(26 [pid 5053] <... close resumed>) = 0 [pid 5050] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(3, [pid 5613] <... open resumed>) = -1 EFAULT (Bad address) [pid 5612] close(15 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./89/file0" [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5613] close(3 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(27 [pid 5053] <... rmdir resumed>) = 0 [pid 5612] close(16 [pid 5053] getdents64(3, [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5612] close(17 [pid 5053] close(3 [pid 5050] newfstatat(AT_FDCWD, "./88/binderfs", [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5612] close(18 [pid 5053] rmdir("./89" [pid 5050] unlink("./88/binderfs" [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5613] <... close resumed>) = 0 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./90/binderfs", [pid 5613] close(4 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(28 [pid 5053] <... rmdir resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5613] <... close resumed>) = 0 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(5 [pid 5610] close(29 [pid 5613] <... close resumed>) = 0 [pid 5612] close(19 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] unlink("./90/binderfs" [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] exit_group(0 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5610] <... exit_group resumed>) = ? [pid 5612] close(20 [pid 5053] mkdir("./90", 0777 [pid 5050] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] +++ exited with 0 +++ [pid 5053] <... mkdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = 0 [pid 5612] close(21 [pid 5050] newfstatat(AT_FDCWD, "./88/file0", [pid 5049] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5613] close(6 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5613] close(7 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] close(22 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./90/file0", [pid 5613] close(8) = -1 EBADF (Bad file descriptor) [pid 5048] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5613] close(9) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 3 [pid 5613] close(10 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(3, "", [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(11) = -1 EBADF (Bad file descriptor) [pid 5612] close(23 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5050] <... openat resumed>) = 4 [pid 5049] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5613] close(12 [pid 5048] getdents64(3, [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(13) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(4, "", [pid 5049] <... openat resumed>) = 4 [pid 5613] close(14) = -1 EBADF (Bad file descriptor) [pid 5613] close(15 [pid 5612] close(24 [pid 5053] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] newfstatat(4, "", [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(16) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5612] close(25 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] getdents64(4, [pid 5613] close(17 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(18) = -1 EBADF (Bad file descriptor) [pid 5613] close(19 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(AT_FDCWD, "./88/binderfs", [pid 5613] close(20) = -1 EBADF (Bad file descriptor) [pid 5612] close(26 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(4, [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5613] close(21 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] unlink("./88/binderfs"./strace-static-x86_64: Process 5614 attached [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(22 [pid 5612] close(27 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 92 [pid 5050] <... close resumed>) = 0 [pid 5049] close(4 [pid 5048] <... unlink resumed>) = 0 [pid 5614] set_robust_list(0x5555566e0760, 24 [pid 5048] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(23 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./88/file0" [pid 5049] <... close resumed>) = 0 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] close(28 [pid 5050] <... rmdir resumed>) = 0 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./90/file0" [pid 5612] close(29 [pid 5050] getdents64(3, [pid 5614] <... set_robust_list resumed>) = 0 [pid 5613] close(24 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] exit_group(0 [pid 5049] getdents64(3, [pid 5048] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5613] close(25 [pid 5612] <... exit_group resumed>) = ? [pid 5050] close(3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5614] chdir("./90" [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] +++ exited with 0 +++ [pid 5050] <... close resumed>) = 0 [pid 5049] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5614] <... chdir resumed>) = 0 [pid 5050] rmdir("./88" [pid 5049] <... close resumed>) = 0 [pid 5614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5613] close(26 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... rmdir resumed>) = 0 [pid 5049] rmdir("./90" [pid 5048] newfstatat(AT_FDCWD, "./88/file0", [pid 5614] <... prctl resumed>) = 0 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] mkdir("./89", 0777 [pid 5049] <... rmdir resumed>) = 0 [pid 5614] setpgid(0, 0 [pid 5613] close(27 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] mkdir("./91", 0777 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5614] <... setpgid resumed>) = 0 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... mkdir resumed>) = 0 [pid 5048] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5613] close(28 [pid 5614] <... openat resumed>) = 3 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5614] write(3, "1000", 4 [pid 5613] close(29 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5614] <... write resumed>) = 4 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... openat resumed>) = 3 [pid 5614] close(3 [pid 5613] exit_group(0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... openat resumed>) = 4 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5614] <... close resumed>) = 0 [pid 5613] <... exit_group resumed>) = ? [pid 5050] close(3 [pid 5048] newfstatat(4, "", [pid 5049] close(3 [pid 5050] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5614] symlink("/dev/binderfs", "./binderfs" [pid 5613] +++ exited with 0 +++ [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 93 ./strace-static-x86_64: Process 5615 attached [pid 5615] set_robust_list(0x5555566e0760, 24 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 91 [pid 5615] <... set_robust_list resumed>) = 0 [pid 5615] chdir("./91" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] getdents64(4, [pid 5615] <... chdir resumed>) = 0 [pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5615] setpgid(0, 0) = 0 [pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5615] write(3, "1000", 4) = 4 [pid 5615] close(3) = 0 [pid 5615] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5615] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] getdents64(4, [pid 5052] <... openat resumed>) = 3 [pid 5051] <... openat resumed>) = 3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5616 attached [pid 5615] <... socket resumed>) = 3 [pid 5051] newfstatat(3, "", [pid 5615] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] close(4 [pid 5616] set_robust_list(0x5555566e0760, 24 [pid 5615] <... socket resumed>) = 4 [pid 5616] <... set_robust_list resumed>) = 0 [pid 5615] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] getdents64(3, [pid 5048] <... close resumed>) = 0 [pid 5616] chdir("./89" [pid 5048] rmdir("./88/file0" [pid 5615] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5616] <... chdir resumed>) = 0 [pid 5615] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5615] memfd_create("syzkaller", 0 [pid 5614] <... symlink resumed>) = 0 [pid 5051] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... rmdir resumed>) = 0 [pid 5615] <... memfd_create resumed>) = 5 [pid 5615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5615] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5615] mkdir("./file0", 000 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(3, [pid 5616] <... prctl resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5616] setpgid(0, 0 [pid 5615] <... mkdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] newfstatat(AT_FDCWD, "./92/binderfs", [pid 5048] close(3 [pid 5615] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5615] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5615] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5615] close(3) = 0 [pid 5615] close(4) = 0 [pid 5615] close(5) = 0 [pid 5615] close(6) = -1 EBADF (Bad file descriptor) [pid 5615] close(7) = -1 EBADF (Bad file descriptor) [pid 5615] close(8) = -1 EBADF (Bad file descriptor) [pid 5615] close(9) = -1 EBADF (Bad file descriptor) [pid 5615] close(10 [pid 5616] <... setpgid resumed>) = 0 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... close resumed>) = 0 [pid 5615] close(11 [pid 5048] rmdir("./88" [pid 5616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] unlink("./92/binderfs" [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5615] close(12 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(13) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./95/binderfs", [pid 5051] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... rmdir resumed>) = 0 [pid 5615] close(14 [pid 5616] <... openat resumed>) = 3 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(15 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5614] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5616] write(3, "1000", 4 [pid 5048] mkdir("./89", 0777 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(16) = -1 EBADF (Bad file descriptor) [pid 5615] close(17) = -1 EBADF (Bad file descriptor) [pid 5615] close(18) = -1 EBADF (Bad file descriptor) [pid 5615] close(19) = -1 EBADF (Bad file descriptor) [pid 5048] <... mkdir resumed>) = 0 [pid 5616] <... write resumed>) = 4 [pid 5615] close(20 [pid 5616] close(3 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... socket resumed>) = 3 [pid 5052] unlink("./95/binderfs" [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5616] <... close resumed>) = 0 [pid 5615] close(21 [pid 5616] symlink("/dev/binderfs", "./binderfs" [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5615] close(22 [pid 5616] <... symlink resumed>) = 0 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5616] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5615] close(23 [pid 5616] <... socket resumed>) = 3 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5616] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5615] close(24 [pid 5614] <... socket resumed>) = 4 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] close(3 [pid 5616] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5614] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5616] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5614] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5048] <... close resumed>) = 0 [pid 5616] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5614] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5616] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(25) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5617 attached [pid 5616] memfd_create("syzkaller", 0 [pid 5615] close(26 [pid 5614] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./92/file0", [pid 5617] set_robust_list(0x5555566e0760, 24 [pid 5616] <... memfd_create resumed>) = 5 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] memfd_create("syzkaller", 0 [pid 5052] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 91 [pid 5617] <... set_robust_list resumed>) = 0 [pid 5616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5615] close(27 [pid 5614] <... memfd_create resumed>) = 5 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] chdir("./89" [pid 5616] <... mmap resumed>) = 0x7f1263f98000 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] newfstatat(AT_FDCWD, "./95/file0", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] <... chdir resumed>) = 0 [pid 5616] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5615] close(28 [pid 5614] <... mmap resumed>) = 0x7f1263f98000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5616] mkdir("./file0", 000 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] <... openat resumed>) = 4 [pid 5617] <... prctl resumed>) = 0 [pid 5616] <... mkdir resumed>) = 0 [pid 5614] mkdir("./file0", 000 [pid 5052] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(4, "", [pid 5617] setpgid(0, 0 [pid 5616] symlink(NULL, NULL [pid 5615] close(29 [pid 5614] <... mkdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5617] <... setpgid resumed>) = 0 [pid 5616] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5616] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5615] exit_group(0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5617] <... openat resumed>) = 3 [pid 5616] <... mount resumed>) = 0 [pid 5614] symlink(NULL, NULL [pid 5052] <... openat resumed>) = 4 [pid 5051] getdents64(4, [pid 5616] open(NULL, O_RDONLY [pid 5614] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5616] <... open resumed>) = -1 EFAULT (Bad address) [pid 5614] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5052] newfstatat(4, "", [pid 5051] close(4 [pid 5616] close(3 [pid 5615] <... exit_group resumed>) = ? [pid 5051] <... close resumed>) = 0 [pid 5616] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] rmdir("./92/file0" [pid 5616] close(4 [pid 5614] <... mount resumed>) = 0 [pid 5052] getdents64(4, [pid 5051] <... rmdir resumed>) = 0 [pid 5616] <... close resumed>) = 0 [pid 5616] close(5 [pid 5051] getdents64(3, [pid 5616] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] close(3 [pid 5616] close(6 [pid 5051] <... close resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] +++ exited with 0 +++ [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] rmdir("./92" [pid 5616] close(7 [pid 5614] open(NULL, O_RDONLY [pid 5052] getdents64(4, [pid 5051] <... rmdir resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5617] write(3, "1000", 4 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5617] <... write resumed>) = 4 [pid 5616] close(8 [pid 5614] close(3 [pid 5052] close(4 [pid 5051] mkdir("./93", 0777 [pid 5617] close(3 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5617] <... close resumed>) = 0 [pid 5616] close(9 [pid 5051] <... mkdir resumed>) = 0 [pid 5617] symlink("/dev/binderfs", "./binderfs" [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./95/file0" [pid 5614] close(4 [pid 5617] <... symlink resumed>) = 0 [pid 5616] close(10 [pid 5614] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5614] close(5 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] <... socket resumed>) = 3 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5617] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5616] close(11 [pid 5614] close(6 [pid 5052] getdents64(3, [pid 5051] <... openat resumed>) = 3 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... socket resumed>) = 4 [pid 5616] close(12 [pid 5614] close(7 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] <... openat resumed>) = 3 [pid 5617] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5616] close(13 [pid 5614] close(8 [pid 5052] <... close resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5617] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5616] close(14 [pid 5614] close(9 [pid 5052] rmdir("./95" [pid 5051] close(3 [pid 5049] newfstatat(3, "", [pid 5617] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5616] close(15 [pid 5614] close(10 [pid 5051] <... close resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] memfd_create("syzkaller", 0 [pid 5616] close(16 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(11 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5616] close(17 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(12 [pid 5052] mkdir("./96", 0777 [pid 5617] <... memfd_create resumed>) = 5 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] close(18 [pid 5614] close(13 [pid 5052] <... mkdir resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5616] close(19 [pid 5614] close(14 [pid 5049] getdents64(3, [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... mmap resumed>) = 0x7f1263f98000 [pid 5616] close(20 [pid 5614] close(15 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5616] close(21 [pid 5614] close(16 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5618 attached [pid 5617] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5049] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5618] set_robust_list(0x5555566e0760, 24 [pid 5617] mkdir("./file0", 000 [pid 5616] close(22 [pid 5614] close(17 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5618] <... set_robust_list resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 95 [pid 5618] chdir("./93" [pid 5616] close(23 [pid 5614] close(18 [pid 5052] close(3 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] close(24 [pid 5614] close(19 [pid 5052] <... close resumed>) = 0 [pid 5618] <... chdir resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] newfstatat(AT_FDCWD, "./91/binderfs", [pid 5618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5616] close(25 [pid 5614] close(20 [pid 5618] <... prctl resumed>) = 0 [pid 5617] <... mkdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5618] setpgid(0, 0 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] <... setpgid resumed>) = 0 [pid 5618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(21 [pid 5616] close(26 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(22 [pid 5618] <... openat resumed>) = 3 [pid 5616] close(27 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(23 [pid 5616] close(28 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(24 [pid 5616] close(29 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(25 [pid 5616] exit_group(0 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... exit_group resumed>) = ? [pid 5614] close(26 [pid 5618] write(3, "1000", 4 [pid 5617] symlink(NULL, NULL [pid 5616] +++ exited with 0 +++ [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] unlink("./91/binderfs" [pid 5618] <... write resumed>) = 4 [pid 5614] close(27./strace-static-x86_64: Process 5619 attached [pid 5618] close(3 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] set_robust_list(0x5555566e0760, 24 [pid 5618] <... close resumed>) = 0 [pid 5614] close(28 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 98 [pid 5619] <... set_robust_list resumed>) = 0 [pid 5618] symlink("/dev/binderfs", "./binderfs" [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] chdir("./96" [pid 5618] <... symlink resumed>) = 0 [pid 5614] close(29) = -1 EBADF (Bad file descriptor) [pid 5618] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5614] exit_group(0 [pid 5619] <... chdir resumed>) = 0 [pid 5618] <... socket resumed>) = 3 [pid 5614] <... exit_group resumed>) = ? [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5617] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5614] +++ exited with 0 +++ [pid 5049] <... unlink resumed>) = 0 [pid 5619] <... prctl resumed>) = 0 [pid 5619] setpgid(0, 0 [pid 5617] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5619] <... setpgid resumed>) = 0 [pid 5618] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5050] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5618] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5618] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5618] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5619] write(3, "1000", 4 [pid 5618] memfd_create("syzkaller", 0 [pid 5617] <... mount resumed>) = 0 [pid 5619] <... write resumed>) = 4 [pid 5050] <... openat resumed>) = 3 [pid 5617] open(NULL, O_RDONLY [pid 5050] newfstatat(3, "", [pid 5049] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5619] close(3 [pid 5618] <... memfd_create resumed>) = 5 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5619] <... close resumed>) = 0 [pid 5053] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] newfstatat(AT_FDCWD, "./91/file0", [pid 5619] symlink("/dev/binderfs", "./binderfs" [pid 5618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5617] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(3, [pid 5053] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5618] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... openat resumed>) = 3 [pid 5049] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5619] <... symlink resumed>) = 0 [pid 5618] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5053] newfstatat(3, "", [pid 5619] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5618] mkdir("./file0", 000 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5619] <... socket resumed>) = 3 [pid 5617] close(3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] getdents64(3, [pid 5619] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5619] <... socket resumed>) = 4 [pid 5053] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5618] <... mkdir resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5619] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5618] symlink(NULL, NULL [pid 5619] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5618] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5617] <... close resumed>) = 0 [pid 5050] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5619] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5618] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5619] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5618] <... mount resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./90/binderfs", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 4 [pid 5619] memfd_create("syzkaller", 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] newfstatat(AT_FDCWD, "./89/binderfs", [pid 5049] newfstatat(4, "", [pid 5619] <... memfd_create resumed>) = 5 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5618] open(NULL, O_RDONLY [pid 5617] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5619] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] unlink("./90/binderfs" [pid 5618] <... open resumed>) = -1 EFAULT (Bad address) [pid 5619] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5618] close(3 [pid 5050] unlink("./89/binderfs" [pid 5619] mkdir("./file0", 000 [pid 5618] <... close resumed>) = 0 [pid 5617] <... close resumed>) = 0 [pid 5619] <... mkdir resumed>) = 0 [pid 5618] close(4 [pid 5050] <... unlink resumed>) = 0 [pid 5617] close(5 [pid 5618] <... close resumed>) = 0 [pid 5618] close(5) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5618] close(6 [pid 5617] <... close resumed>) = 0 [pid 5049] getdents64(4, [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] symlink(NULL, NULL [pid 5618] close(7 [pid 5619] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5618] close(8 [pid 5619] <... mount resumed>) = 0 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] close(6 [pid 5050] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5618] close(9) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(4, [pid 5617] close(7 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5618] close(10) = -1 EBADF (Bad file descriptor) [pid 5619] open(NULL, O_RDONLY [pid 5618] close(11 [pid 5619] <... open resumed>) = -1 EFAULT (Bad address) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(4 [pid 5618] close(12 [pid 5617] close(8 [pid 5053] <... umount2 resumed>) = 0 [pid 5619] close(3 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5619] <... close resumed>) = 0 [pid 5618] close(13 [pid 5050] <... umount2 resumed>) = 0 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(4 [pid 5618] close(14 [pid 5617] close(9 [pid 5049] rmdir("./91/file0" [pid 5053] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5619] <... close resumed>) = 0 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(15) = -1 EBADF (Bad file descriptor) [pid 5618] close(16 [pid 5619] close(5 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(17) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5619] <... close resumed>) = 0 [pid 5618] close(18 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5619] close(6 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(19 [pid 5619] close(7 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(20 [pid 5619] close(8 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(21 [pid 5619] close(9 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(22 [pid 5619] close(10 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(23 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5619] close(11 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] close(10 [pid 5050] newfstatat(AT_FDCWD, "./89/file0", [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(24 [pid 5619] close(12 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(25 [pid 5619] close(13) = -1 EBADF (Bad file descriptor) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(14 [pid 5618] close(26 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./90/file0", [pid 5619] close(15 [pid 5618] close(27 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5619] close(16 [pid 5618] close(28 [pid 5617] close(11 [pid 5053] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5619] close(17 [pid 5618] close(29 [pid 5617] close(12 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(18 [pid 5618] exit_group(0 [pid 5617] close(13 [pid 5053] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... openat resumed>) = 4 [pid 5049] close(3 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(4, "", [pid 5617] close(14) = -1 EBADF (Bad file descriptor) [pid 5619] close(19 [pid 5618] <... exit_group resumed>) = ? [pid 5053] <... openat resumed>) = 4 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] close(15 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... close resumed>) = 0 [pid 5619] close(20 [pid 5618] +++ exited with 0 +++ [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5049] rmdir("./91" [pid 5619] close(21 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5619] close(22 [pid 5051] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(23 [pid 5051] <... openat resumed>) = 3 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] newfstatat(3, "", [pid 5617] close(16 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(4, [pid 5049] <... rmdir resumed>) = 0 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5617] close(17 [pid 5051] getdents64(3, [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5619] close(24 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] close(18 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5619] close(25 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(4, [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5617] close(19 [pid 5619] close(26 [pid 5051] newfstatat(AT_FDCWD, "./93/binderfs", [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5050] close(4 [pid 5049] mkdir("./92", 0777 [pid 5619] close(27 [pid 5617] close(20 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5619] close(28 [pid 5051] unlink("./93/binderfs" [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5050] rmdir("./89/file0" [pid 5619] close(29 [pid 5617] close(21 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... rmdir resumed>) = 0 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5617] close(22 [pid 5619] exit_group(0 [pid 5053] <... close resumed>) = 0 [pid 5051] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... exit_group resumed>) = ? [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5619] +++ exited with 0 +++ [pid 5617] close(23 [pid 5053] rmdir("./90/file0" [pid 5051] <... umount2 resumed>) = 0 [pid 5050] getdents64(3, [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5052] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] close(24 [pid 5053] <... rmdir resumed>) = 0 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5617] close(25 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5617] close(26 [pid 5052] <... openat resumed>) = 3 [pid 5051] newfstatat(AT_FDCWD, "./93/file0", [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5052] newfstatat(3, "", [pid 5617] close(27 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] close(3 [pid 5049] close(3 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] close(28 [pid 5053] close(3 [pid 5050] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] close(29 [pid 5053] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] rmdir("./89" [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./90" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5617] exit_group(0 [pid 5051] <... openat resumed>) = 4 [pid 5617] <... exit_group resumed>) = ? [pid 5052] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(4, "", [pid 5052] newfstatat(AT_FDCWD, "./96/binderfs", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(4, [pid 5052] unlink("./96/binderfs" [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... unlink resumed>) = 0 [pid 5051] getdents64(4, [pid 5050] <... rmdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5052] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] rmdir("./93/file0" [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5052] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./96/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] close(3) = 0 [pid 5052] getdents64(4, [pid 5051] rmdir("./93" [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... rmdir resumed>) = 0 [pid 5052] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(4) = 0 [pid 5052] rmdir("./96/file0") = 0 [pid 5051] mkdir("./94", 0777) = 0 [pid 5052] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] close(3) = 0 [pid 5052] rmdir("./96" [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5053] <... rmdir resumed>) = 0 [pid 5050] mkdir("./90", 0777 [pid 5053] mkdir("./91", 0777 [pid 5050] <... mkdir resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5617] +++ exited with 0 +++ [pid 5050] <... openat resumed>) = 3 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5053] <... openat resumed>) = 3 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5620 attached [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 94 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5050] close(3 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... close resumed>) = 0 [pid 5620] set_robust_list(0x5555566e0760, 24 [pid 5053] close(3 [pid 5051] <... openat resumed>) = 3 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5620] <... set_robust_list resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5620] chdir("./92" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5620] <... chdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] mkdir("./97", 0777 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... openat resumed>) = 3 [pid 5620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... mkdir resumed>) = 0 [pid 5051] close(3 [pid 5048] newfstatat(3, "", [pid 5620] <... prctl resumed>) = 0 [pid 5620] setpgid(0, 0 [pid 5051] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5620] <... setpgid resumed>) = 0 [pid 5048] getdents64(3, [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5621 attached [pid 5620] <... openat resumed>) = 3 [pid 5052] <... openat resumed>) = 3 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 92 [pid 5048] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5621] set_robust_list(0x5555566e0760, 24 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5621] <... set_robust_list resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] close(3 [pid 5621] chdir("./90" [pid 5052] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./89/binderfs", [pid 5621] <... chdir resumed>) = 0 [pid 5620] write(3, "1000", 4 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5623 attached ./strace-static-x86_64: Process 5622 attached [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5620] <... write resumed>) = 4 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 93 [pid 5048] unlink("./89/binderfs" [pid 5621] <... prctl resumed>) = 0 [pid 5620] close(3 [pid 5622] set_robust_list(0x5555566e0760, 24 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 96 [pid 5621] setpgid(0, 0 [pid 5620] <... close resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5621] <... setpgid resumed>) = 0 [pid 5620] symlink("/dev/binderfs", "./binderfs" [pid 5048] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5624 attached [pid 5622] <... set_robust_list resumed>) = 0 [pid 5624] set_robust_list(0x5555566e0760, 24 [pid 5622] chdir("./91" [pid 5620] <... symlink resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 99 [pid 5622] <... chdir resumed>) = 0 [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5624] <... set_robust_list resumed>) = 0 [pid 5624] chdir("./97" [pid 5622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5620] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... umount2 resumed>) = 0 [pid 5622] <... prctl resumed>) = 0 [pid 5621] <... openat resumed>) = 3 [pid 5048] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5624] <... chdir resumed>) = 0 [pid 5623] set_robust_list(0x5555566e0760, 24 [pid 5622] setpgid(0, 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5622] <... setpgid resumed>) = 0 [pid 5620] <... socket resumed>) = 3 [pid 5623] <... set_robust_list resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./89/file0", [pid 5624] <... prctl resumed>) = 0 [pid 5622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5620] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5621] write(3, "1000", 4 [pid 5624] setpgid(0, 0 [pid 5620] <... socket resumed>) = 4 [pid 5048] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5621] <... write resumed>) = 4 [pid 5624] <... setpgid resumed>) = 0 [pid 5624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5623] chdir("./94" [pid 5622] <... openat resumed>) = 3 [pid 5621] close(3 [pid 5620] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5624] <... openat resumed>) = 3 [pid 5623] <... chdir resumed>) = 0 [pid 5622] write(3, "1000", 4 [pid 5621] <... close resumed>) = 0 [pid 5620] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5621] symlink("/dev/binderfs", "./binderfs" [pid 5620] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5622] <... write resumed>) = 4 [pid 5620] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5624] write(3, "1000", 4 [pid 5622] close(3 [pid 5624] <... write resumed>) = 4 [pid 5622] <... close resumed>) = 0 [pid 5620] memfd_create("syzkaller", 0 [pid 5624] close(3 [pid 5622] symlink("/dev/binderfs", "./binderfs" [pid 5048] <... openat resumed>) = 4 [pid 5624] <... close resumed>) = 0 [pid 5623] <... prctl resumed>) = 0 [pid 5624] symlink("/dev/binderfs", "./binderfs" [pid 5622] <... symlink resumed>) = 0 [pid 5624] <... symlink resumed>) = 0 [pid 5624] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5622] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5624] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5622] <... socket resumed>) = 3 [pid 5624] <... socket resumed>) = 4 [pid 5624] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5622] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5624] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5622] <... socket resumed>) = 4 [pid 5624] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5622] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5622] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5624] memfd_create("syzkaller", 0 [pid 5623] setpgid(0, 0 [pid 5622] memfd_create("syzkaller", 0 [pid 5621] <... symlink resumed>) = 0 [pid 5620] <... memfd_create resumed>) = 5 [pid 5048] newfstatat(4, "", [pid 5623] <... setpgid resumed>) = 0 [pid 5621] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5620] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5621] <... socket resumed>) = 3 [pid 5621] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5620] <... mmap resumed>) = 0x7f1263f98000 [pid 5621] <... socket resumed>) = 4 [pid 5623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5621] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5620] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5048] getdents64(4, [pid 5621] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5620] mkdir("./file0", 000 [pid 5623] <... openat resumed>) = 3 [pid 5622] <... memfd_create resumed>) = 5 [pid 5622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5622] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5622] mkdir("./file0", 000 [pid 5620] <... mkdir resumed>) = 0 [pid 5621] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5622] <... mkdir resumed>) = 0 [pid 5620] symlink(NULL, NULL [pid 5622] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5622] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5623] write(3, "1000", 4 [pid 5621] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5620] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] getdents64(4, [pid 5623] <... write resumed>) = 4 [ 112.434261][ T5620] __do_sys_memfd_create: 131 callbacks suppressed [ 112.434282][ T5620] syz-executor493[5620]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 112.440070][ T5624] syz-executor493[5624]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 112.464737][ T5622] syz-executor493[5622]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5623] close(3 [pid 5620] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5623] <... close resumed>) = 0 [pid 5621] memfd_create("syzkaller", 0 [pid 5048] close(4) = 0 [pid 5048] rmdir("./89/file0") = 0 [pid 5048] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] close(3) = 0 [pid 5048] rmdir("./89") = 0 [pid 5622] <... mount resumed>) = 0 [pid 5048] mkdir("./90", 0777 [pid 5623] symlink("/dev/binderfs", "./binderfs" [pid 5620] <... mount resumed>) = 0 [pid 5623] <... symlink resumed>) = 0 [pid 5620] open(NULL, O_RDONLY [pid 5623] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5620] <... open resumed>) = -1 EFAULT (Bad address) [pid 5048] <... mkdir resumed>) = 0 [pid 5622] open(NULL, O_RDONLY [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5622] <... open resumed>) = -1 EFAULT (Bad address) [pid 5624] <... memfd_create resumed>) = 5 [pid 5623] <... socket resumed>) = 3 [pid 5620] close(3 [pid 5624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5623] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5621] <... memfd_create resumed>) = 5 [pid 5620] <... close resumed>) = 0 [pid 5623] <... socket resumed>) = 4 [pid 5620] close(4 [pid 5621] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5620] <... close resumed>) = 0 [pid 5623] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5623] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5624] <... mmap resumed>) = 0x7f1263f98000 [pid 5621] mkdir("./file0", 000 [pid 5620] close(5 [pid 5624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5623] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5620] <... close resumed>) = 0 [pid 5623] memfd_create("syzkaller", 0 [pid 5620] close(6 [pid 5624] mkdir("./file0", 000 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5048] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5048] close(3) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5622] close(3) = 0 [pid 5622] close(4) = 0 [pid 5622] close(5) = 0 [pid 5622] close(6) = -1 EBADF (Bad file descriptor) [pid 5622] close(7./strace-static-x86_64: Process 5625 attached [pid 5624] <... mkdir resumed>) = 0 [pid 5621] <... mkdir resumed>) = 0 [pid 5620] close(7 [pid 5624] symlink(NULL, NULL [pid 5621] symlink(NULL, NULL [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] set_robust_list(0x5555566e0760, 24 [pid 5624] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5621] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5620] close(8 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 92 [pid 5621] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5624] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] <... set_robust_list resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] chdir("./90" [pid 5622] close(8 [pid 5621] <... mount resumed>) = 0 [pid 5620] close(9 [pid 5625] <... chdir resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5622] close(9 [pid 5624] <... mount resumed>) = 0 [pid 5621] open(NULL, O_RDONLY [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(10 [pid 5625] <... prctl resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... open resumed>) = -1 EFAULT (Bad address) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] setpgid(0, 0 [pid 5622] close(10 [pid 5621] close(3 [pid 5620] close(11 [pid 5625] <... setpgid resumed>) = 0 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5623] <... memfd_create resumed>) = 5 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = 0 [pid 5620] close(12 [pid 5625] <... openat resumed>) = 3 [pid 5623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5622] close(11 [pid 5621] close(4 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] write(3, "1000", 4 [pid 5623] <... mmap resumed>) = 0x7f1263f98000 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = 0 [pid 5620] close(13 [pid 5625] <... write resumed>) = 4 [pid 5624] open(NULL, O_RDONLY [pid 5623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5622] close(12 [pid 5621] close(5 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(3 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(14 [pid 5621] <... close resumed>) = 0 [pid 5623] mkdir("./file0", 000 [pid 5625] <... close resumed>) = 0 [pid 5622] close(13 [pid 5621] close(6 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] symlink("/dev/binderfs", "./binderfs" [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(15 [pid 5625] <... symlink resumed>) = 0 [pid 5624] <... open resumed>) = -1 EFAULT (Bad address) [pid 5623] <... mkdir resumed>) = 0 [pid 5622] close(14 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(16 [pid 5625] <... socket resumed>) = 3 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(17) = -1 EBADF (Bad file descriptor) [pid 5620] close(18 [pid 5625] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5624] close(3 [pid 5623] symlink(NULL, NULL [pid 5622] close(15 [pid 5621] close(7 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] <... socket resumed>) = 4 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(19 [pid 5623] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5625] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5622] close(16 [pid 5625] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5621] close(8 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5622] close(17 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(20 [pid 5625] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] close(18) = -1 EBADF (Bad file descriptor) [pid 5623] <... mount resumed>) = 0 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(9 [pid 5625] memfd_create("syzkaller", 0 [pid 5620] close(21 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(10 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = 0 [ 112.485023][ T5621] syz-executor493[5621]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 112.502599][ T5623] syz-executor493[5623]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(22 [pid 5624] close(4 [pid 5621] close(11 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = 0 [pid 5623] open(NULL, O_RDONLY [pid 5622] close(19 [pid 5621] close(12 [pid 5620] close(23 [pid 5624] close(5 [pid 5623] <... open resumed>) = -1 EFAULT (Bad address) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = 0 [pid 5622] close(20 [pid 5621] close(13 [pid 5620] close(24 [pid 5624] close(6 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] close(21 [pid 5621] close(14 [pid 5620] close(25 [pid 5624] close(7 [pid 5623] close(3 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] close(22 [pid 5621] close(15 [pid 5620] close(26 [pid 5623] <... close resumed>) = 0 [pid 5624] close(8 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(4 [pid 5622] close(23 [pid 5621] close(16 [pid 5620] close(27 [pid 5624] close(9 [pid 5623] <... close resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(5 [pid 5622] close(24 [pid 5621] close(17 [pid 5620] close(28 [pid 5624] close(10 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] <... close resumed>) = 0 [pid 5621] close(18 [pid 5620] close(29 [pid 5624] close(11 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] close(25 [pid 5621] close(19 [pid 5624] close(12 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] exit_group(0 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] close(26 [pid 5621] close(20 [pid 5620] <... exit_group resumed>) = ? [pid 5624] close(13 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] close(27) = -1 EBADF (Bad file descriptor) [pid 5622] close(28) = -1 EBADF (Bad file descriptor) [pid 5622] close(29) = -1 EBADF (Bad file descriptor) [pid 5622] exit_group(0) = ? [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] +++ exited with 0 +++ [pid 5621] close(21 [pid 5620] +++ exited with 0 +++ [pid 5624] close(14 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(22 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5624] close(15 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(23 [pid 5624] close(16 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(6 [pid 5621] close(24 [pid 5624] close(17 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... restart_syscall resumed>) = 0 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(7 [pid 5621] close(25 [pid 5053] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5624] close(18 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(8 [pid 5621] close(26 [pid 5053] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5624] close(19 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(9 [pid 5621] close(27 [pid 5053] newfstatat(3, "", [pid 5049] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5624] close(20 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] <... memfd_create resumed>) = 5 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(10 [pid 5621] close(28 [pid 5053] getdents64(3, [pid 5049] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5624] close(21 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5625] <... mmap resumed>) = 0x7f1263f98000 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(11 [pid 5621] close(29 [pid 5053] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5625] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5624] close(22 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5625] mkdir("./file0", 000 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(12 [pid 5053] newfstatat(AT_FDCWD, "./91/binderfs", [pid 5624] close(23 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] exit_group(0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] newfstatat(3, "", [pid 5625] <... mkdir resumed>) = 0 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(13 [pid 5621] <... exit_group resumed>) = ? [pid 5053] unlink("./91/binderfs" [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5625] symlink(NULL, NULL [pid 5053] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5625] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5625] mount(NULL, "./file0", "sysfs", 0, NULL) = 0 [pid 5625] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5621] +++ exited with 0 +++ [pid 5625] close(3 [pid 5624] close(24 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5625] <... close resumed>) = 0 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(14 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5624] close(25 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5625] close(4 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(15 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] <... close resumed>) = 0 [pid 5624] close(26 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5050] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5625] close(5 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(16 [pid 5053] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] <... close resumed>) = 0 [pid 5624] close(27 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(3, "", [pid 5049] newfstatat(AT_FDCWD, "./92/binderfs", [pid 5625] close(6 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(17 [pid 5053] newfstatat(AT_FDCWD, "./91/file0", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(28 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5625] close(7 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(18 [pid 5053] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(3, [pid 5049] unlink("./92/binderfs" [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(29 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] close(8 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(19 [pid 5053] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... unlink resumed>) = 0 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] exit_group(0 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 4 [pid 5049] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5625] close(9 [pid 5624] <... exit_group resumed>) = ? [pid 5623] close(20 [pid 5053] newfstatat(4, "", [pid 5050] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] close(10 [pid 5053] getdents64(4, [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(21 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] newfstatat(AT_FDCWD, "./90/binderfs", [pid 5625] close(11 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5623] close(22 [pid 5625] close(12 [pid 5053] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5050] unlink("./90/binderfs" [pid 5049] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 112.545266][ T5625] syz-executor493[5625]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5625] close(13 [pid 5623] close(23 [pid 5053] rmdir("./91/file0" [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./92/file0", [pid 5623] close(24 [pid 5625] close(14 [pid 5053] getdents64(3, [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5625] close(15 [pid 5623] close(25 [pid 5053] close(3 [pid 5050] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] +++ exited with 0 +++ [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5049] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5625] close(16 [pid 5623] close(26 [pid 5053] rmdir("./91" [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5623] close(27 [pid 5049] <... openat resumed>) = 4 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(4, "", [pid 5623] close(28 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5625] close(17 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(4, [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(29 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5625] close(18 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./90/file0", [pid 5049] getdents64(4, [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] exit_group(0 [pid 5053] mkdir("./92", 0777 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5625] close(19 [pid 5623] <... exit_group resumed>) = ? [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] close(4 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] +++ exited with 0 +++ [pid 5053] <... mkdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5625] close(20 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] <... close resumed>) = 0 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] close(21) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] rmdir("./92/file0" [pid 5625] close(22 [pid 5053] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5625] close(23 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5049] <... rmdir resumed>) = 0 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5051] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(4, "", [pid 5625] close(24 [pid 5049] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5625] close(25) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] <... openat resumed>) = 3 [pid 5050] getdents64(4, [pid 5625] close(26 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] newfstatat(3, "", [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5625] close(27 [pid 5049] close(3 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... close resumed>) = 0 [pid 5049] rmdir("./92") = 0 [pid 5049] mkdir("./93", 0777 [pid 5625] close(28 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5049] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5049] close(3) = 0 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(3, [pid 5625] close(29 [pid 5050] getdents64(4, [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5626 attached [pid 5625] exit_group(0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5625] <... exit_group resumed>) = ? [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 94 [pid 5052] newfstatat(AT_FDCWD, "./97/binderfs", [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 95 ./strace-static-x86_64: Process 5627 attached [pid 5627] set_robust_list(0x5555566e0760, 24) = 0 [pid 5627] chdir("./93") = 0 [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5627] setpgid(0, 0) = 0 [pid 5625] +++ exited with 0 +++ [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5626] set_robust_list(0x5555566e0760, 24 [pid 5051] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] close(4 [pid 5626] <... set_robust_list resumed>) = 0 [pid 5052] unlink("./97/binderfs" [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5050] <... close resumed>) = 0 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5050] rmdir("./90/file0" [pid 5627] <... openat resumed>) = 3 [pid 5052] <... unlink resumed>) = 0 [pid 5627] write(3, "1000", 4) = 4 [pid 5627] close(3) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5627] symlink("/dev/binderfs", "./binderfs" [pid 5626] chdir("./92" [pid 5627] <... symlink resumed>) = 0 [pid 5050] getdents64(3, [pid 5048] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5626] <... chdir resumed>) = 0 [pid 5052] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] newfstatat(AT_FDCWD, "./94/binderfs", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5627] <... socket resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] close(3 [pid 5627] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5626] <... prctl resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5627] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5627] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5627] memfd_create("syzkaller", 0 [pid 5626] setpgid(0, 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] unlink("./94/binderfs" [pid 5050] rmdir("./90" [pid 5048] newfstatat(3, "", [pid 5052] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5626] <... setpgid resumed>) = 0 [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] getdents64(3, [pid 5626] <... openat resumed>) = 3 [pid 5052] newfstatat(AT_FDCWD, "./97/file0", [pid 5627] <... memfd_create resumed>) = 5 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5626] write(3, "1000", 4 [pid 5052] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5627] <... mmap resumed>) = 0x7f1263f98000 [pid 5627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5627] mkdir("./file0", 000 [pid 5048] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5626] <... write resumed>) = 4 [pid 5052] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] mkdir("./91", 0777 [pid 5626] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... openat resumed>) = 4 [pid 5627] <... mkdir resumed>) = 0 [pid 5627] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5627] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5626] <... close resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5051] <... umount2 resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./90/binderfs", [pid 5626] symlink("/dev/binderfs", "./binderfs" [pid 5627] <... mount resumed>) = 0 [pid 5626] <... symlink resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(4, [pid 5050] <... mkdir resumed>) = 0 [pid 5048] unlink("./90/binderfs" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5627] open(NULL, O_RDONLY [pid 5626] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] newfstatat(AT_FDCWD, "./94/file0", [pid 5048] <... unlink resumed>) = 0 [pid 5627] <... open resumed>) = -1 EFAULT (Bad address) [pid 5626] <... socket resumed>) = 3 [pid 5052] getdents64(4, [pid 5050] <... openat resumed>) = 3 [pid 5627] close(3 [pid 5626] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5627] <... close resumed>) = 0 [pid 5626] <... socket resumed>) = 4 [pid 5052] close(4 [pid 5051] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = 0 [pid 5626] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5626] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] close(3 [pid 5048] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5627] close(4 [pid 5626] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... close resumed>) = 0 [pid 5627] <... close resumed>) = 0 [pid 5626] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] rmdir("./97/file0" [pid 5051] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] close(5 [pid 5051] <... openat resumed>) = 4 [pid 5048] newfstatat(AT_FDCWD, "./90/file0", [pid 5627] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5627] close(6 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5048] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] close(7) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] close(8 [pid 5048] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 4 [pid 5627] close(9 [pid 5052] getdents64(3, [pid 5051] getdents64(4, [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(4, "", [pid 5627] close(10 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [ 112.666657][ T5627] syz-executor493[5627]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5627] close(11 [pid 5052] close(3 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5627] close(12 [pid 5052] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(4, [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] rmdir("./97" [pid 5051] close(4 [pid 5627] close(13 [pid 5052] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5627] close(14 [pid 5626] memfd_create("syzkaller", 0 [pid 5051] rmdir("./94/file0" [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5627] close(15) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] mkdir("./98", 0777 [pid 5627] close(16 [pid 5052] <... mkdir resumed>) = 0 [pid 5048] close(4 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] close(17) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5627] close(18 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] rmdir("./90/file0" [pid 5627] close(19 [pid 5048] <... rmdir resumed>) = 0 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5627] close(20 [pid 5052] <... openat resumed>) = 3 [pid 5051] rmdir("./94" [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] close(21 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] getdents64(3, [pid 5627] close(22 [pid 5052] close(3 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5627] close(23) = -1 EBADF (Bad file descriptor) [pid 5627] close(24 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] close(3 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] mkdir("./95", 0777 [pid 5048] <... close resumed>) = 0 ./strace-static-x86_64: Process 5628 attached [pid 5051] <... mkdir resumed>) = 0 [pid 5048] rmdir("./90" [pid 5628] set_robust_list(0x5555566e0760, 24 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 93 [pid 5048] <... rmdir resumed>) = 0 [pid 5627] close(25 [pid 5626] <... memfd_create resumed>) = 5 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... set_robust_list resumed>) = 0 [pid 5627] close(26 [pid 5626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5628] chdir("./91" [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5626] <... mmap resumed>) = 0x7f1263f98000 [pid 5628] <... chdir resumed>) = 0 [pid 5627] close(27 [pid 5051] <... openat resumed>) = 3 [pid 5048] mkdir("./91", 0777./strace-static-x86_64: Process 5629 attached [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5629] set_robust_list(0x5555566e0760, 24 [pid 5628] <... prctl resumed>) = 0 [pid 5627] close(28 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5048] <... mkdir resumed>) = 0 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5628] setpgid(0, 0 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] mkdir("./file0", 000 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 100 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5629] chdir("./98" [pid 5628] <... setpgid resumed>) = 0 [pid 5627] close(29 [pid 5628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... chdir resumed>) = 0 [pid 5627] exit_group(0 [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5628] <... openat resumed>) = 3 [pid 5627] <... exit_group resumed>) = ? [pid 5629] <... prctl resumed>) = 0 [pid 5628] write(3, "1000", 4 [pid 5627] +++ exited with 0 +++ [pid 5626] <... mkdir resumed>) = 0 [pid 5629] setpgid(0, 0 [pid 5628] <... write resumed>) = 4 [pid 5626] symlink(NULL, NULL [pid 5051] close(3 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5629] <... setpgid resumed>) = 0 [pid 5628] close(3 [pid 5626] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] <... openat resumed>) = 3 [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5628] <... close resumed>) = 0 [pid 5626] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5628] symlink("/dev/binderfs", "./binderfs" [pid 5626] <... mount resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5628] <... symlink resumed>) = 0 [pid 5626] open(NULL, O_RDONLY [pid 5049] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5629] <... openat resumed>) = 3 [pid 5628] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5626] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] newfstatat(3, "", [pid 5048] <... close resumed>) = 0 [pid 5629] write(3, "1000", 4 [pid 5628] <... socket resumed>) = 3 [pid 5626] close(3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5630 attached [pid 5629] <... write resumed>) = 4 [pid 5628] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5626] <... close resumed>) = 0 [pid 5629] close(3 [pid 5626] close(4 [pid 5629] <... close resumed>) = 0 [pid 5630] set_robust_list(0x5555566e0760, 24 [pid 5629] symlink("/dev/binderfs", "./binderfs" [pid 5628] <... socket resumed>) = 4 [pid 5626] <... close resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 97 [pid 5049] getdents64(3, [pid 5630] <... set_robust_list resumed>) = 0 [pid 5629] <... symlink resumed>) = 0 [pid 5626] close(5 [pid 5628] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5629] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5626] <... close resumed>) = 0 [pid 5628] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5630] chdir("./95" [pid 5629] <... socket resumed>) = 3 [pid 5628] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5626] close(6 [pid 5049] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5630] <... chdir resumed>) = 0 [pid 5629] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5628] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5626] close(7 [pid 5049] newfstatat(AT_FDCWD, "./93/binderfs", [pid 5630] <... prctl resumed>) = 0 [pid 5629] <... socket resumed>) = 4 [pid 5628] memfd_create("syzkaller", 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 112.733307][ T5626] syz-executor493[5626]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5630] setpgid(0, 0 [pid 5629] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5626] close(8 [pid 5630] <... setpgid resumed>) = 0 [pid 5049] unlink("./93/binderfs" [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 93 [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5049] <... unlink resumed>) = 0 [pid 5630] <... openat resumed>) = 3 [pid 5049] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5630] write(3, "1000", 4) = 4 [pid 5630] close(3) = 0 [pid 5630] symlink("/dev/binderfs", "./binderfs" [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5631 attached [pid 5629] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5626] close(9 [pid 5049] <... umount2 resumed>) = 0 [pid 5630] <... symlink resumed>) = 0 [pid 5629] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5626] close(10 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5631] set_robust_list(0x5555566e0760, 24 [pid 5630] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5629] memfd_create("syzkaller", 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./93/file0", [pid 5631] <... set_robust_list resumed>) = 0 [pid 5630] <... socket resumed>) = 3 [pid 5630] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5630] <... socket resumed>) = 4 [pid 5049] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5630] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] newfstatat(4, "", [pid 5630] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5630] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5630] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5630] memfd_create("syzkaller", 0 [pid 5049] getdents64(4, [pid 5631] chdir("./91") = 0 [pid 5626] close(11) = -1 EBADF (Bad file descriptor) [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5626] close(12 [pid 5631] <... prctl resumed>) = 0 [pid 5631] setpgid(0, 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(13 [pid 5631] <... setpgid resumed>) = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5626] close(14 [pid 5049] getdents64(4, [pid 5631] <... openat resumed>) = 3 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(15) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5630] <... memfd_create resumed>) = 5 [pid 5049] close(4 [pid 5630] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] <... close resumed>) = 0 [pid 5626] close(16) = -1 EBADF (Bad file descriptor) [pid 5630] <... mmap resumed>) = 0x7f1263f98000 [pid 5626] close(17 [pid 5049] rmdir("./93/file0" [pid 5630] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5631] write(3, "1000", 4 [pid 5630] mkdir("./file0", 000 [pid 5626] close(18 [pid 5049] getdents64(3, [pid 5631] <... write resumed>) = 4 [pid 5630] <... mkdir resumed>) = 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5631] close(3 [pid 5626] close(19 [pid 5631] <... close resumed>) = 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5631] symlink("/dev/binderfs", "./binderfs" [pid 5629] <... memfd_create resumed>) = 5 [pid 5626] close(20 [pid 5049] <... close resumed>) = 0 [pid 5049] rmdir("./93" [pid 5631] <... symlink resumed>) = 0 [pid 5630] symlink(NULL, NULL [pid 5629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... rmdir resumed>) = 0 [pid 5631] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5630] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5630] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5631] <... socket resumed>) = 3 [pid 5630] <... mount resumed>) = 0 [pid 5629] <... mmap resumed>) = 0x7f1263f98000 [pid 5626] close(21 [pid 5049] mkdir("./94", 0777 [pid 5631] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5630] open(NULL, O_RDONLY [pid 5629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5628] <... memfd_create resumed>) = 5 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... socket resumed>) = 4 [pid 5630] <... open resumed>) = -1 EFAULT (Bad address) [pid 5629] mkdir("./file0", 000 [pid 5628] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5626] close(22 [pid 5631] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5630] close(3 [pid 5628] <... mmap resumed>) = 0x7f1263f98000 [pid 5049] <... mkdir resumed>) = 0 [pid 5631] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5629] <... mkdir resumed>) = 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5630] <... close resumed>) = 0 [pid 5629] symlink(NULL, NULL [pid 5628] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5626] close(23 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5631] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5630] close(4 [pid 5631] memfd_create("syzkaller", 0 [pid 5630] <... close resumed>) = 0 [pid 5629] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5628] mkdir("./file0", 000 [pid 5631] <... memfd_create resumed>) = 5 [pid 5630] close(5 [pid 5629] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5628] <... mkdir resumed>) = 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5630] <... close resumed>) = 0 [pid 5630] close(6 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5631] <... mmap resumed>) = 0x7f1263f98000 [pid 5630] close(7 [pid 5629] <... mount resumed>) = 0 [pid 5626] close(24 [pid 5628] symlink(NULL, NULL [pid 5049] close(3 [pid 5631] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] mkdir("./file0", 000 [pid 5630] close(8 [pid 5629] open(NULL, O_RDONLY [pid 5628] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5626] close(25 [pid 5049] <... close resumed>) = 0 [pid 5631] <... mkdir resumed>) = 0 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... open resumed>) = -1 EFAULT (Bad address) [pid 5628] <... mount resumed>) = 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5631] symlink(NULL, NULL [pid 5630] close(9 [pid 5629] close(3 [pid 5626] close(26 [pid 5631] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5629] close(4 [pid 5626] close(27) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = 0 [pid 5626] close(28) = -1 EBADF (Bad file descriptor) [pid 5628] open(NULL, O_RDONLY [pid 5631] <... mount resumed>) = 0 [pid 5630] close(10 [pid 5628] <... open resumed>) = -1 EFAULT (Bad address) [pid 5626] close(29 [pid 5629] close(5 [pid 5631] open(NULL, O_RDONLY [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(3 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... open resumed>) = -1 EFAULT (Bad address) [pid 5630] close(11 [pid 5629] <... close resumed>) = 0 [pid 5628] <... close resumed>) = 0 [pid 5631] close(3 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] exit_group(0 [pid 5629] close(6 [pid 5631] <... close resumed>) = 0 [pid 5630] close(12 [pid 5628] close(4 [pid 5626] <... exit_group resumed>) = ? [pid 5631] close(4 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = 0 ./strace-static-x86_64: Process 5632 attached [pid 5631] <... close resumed>) = 0 [pid 5630] close(13 [pid 5629] close(7 [pid 5628] close(5 [pid 5632] set_robust_list(0x5555566e0760, 24 [pid 5631] close(5 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 96 [pid 5632] <... set_robust_list resumed>) = 0 [pid 5631] <... close resumed>) = 0 [pid 5630] close(14 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(6 [pid 5632] chdir("./94" [pid 5631] close(6 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(8 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] close(7 [pid 5629] close(9 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] close(8 [pid 5632] <... chdir resumed>) = 0 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(15 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(7 [pid 5630] close(16 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(8 [pid 5630] close(17 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(9 [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5631] close(9 [pid 5630] close(18 [pid 5629] close(10 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] <... prctl resumed>) = 0 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(10 [pid 5632] setpgid(0, 0 [pid 5631] close(10 [pid 5630] close(19 [pid 5629] close(11 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] <... setpgid resumed>) = 0 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(11 [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5631] close(11 [pid 5630] close(20 [pid 5629] close(12 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 112.778647][ T5628] syz-executor493[5628]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 112.798908][ T5629] syz-executor493[5629]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(12 [pid 5632] <... openat resumed>) = 3 [pid 5631] close(12 [pid 5630] close(21 [pid 5629] close(13 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] write(3, "1000", 4 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(13 [pid 5626] +++ exited with 0 +++ [pid 5632] <... write resumed>) = 4 [pid 5631] close(13 [pid 5630] close(22 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(3 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(14 [pid 5632] <... close resumed>) = 0 [pid 5631] close(14 [pid 5630] close(23 [pid 5629] close(14 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5632] symlink("/dev/binderfs", "./binderfs" [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(15 [pid 5632] <... symlink resumed>) = 0 [pid 5631] close(15 [pid 5630] close(24 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(15 [pid 5628] close(16 [pid 5632] <... socket resumed>) = 3 [pid 5631] close(16 [pid 5630] close(25 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(16 [pid 5628] close(17 [pid 5632] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5631] close(17 [pid 5630] close(26 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] <... socket resumed>) = 4 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(17 [pid 5628] close(18 [pid 5632] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5631] close(18 [pid 5630] close(27 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(18 [pid 5628] close(19 [pid 5053] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5630] close(28 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5631] close(19 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(19 [pid 5628] close(20 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] memfd_create("syzkaller", 0 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(29 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5631] close(20 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(20 [pid 5628] close(21 [pid 5053] <... openat resumed>) = 3 [pid 5632] <... memfd_create resumed>) = 5 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] exit_group(0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5631] close(21 [pid 5630] <... exit_group resumed>) = ? [pid 5629] close(21 [pid 5628] close(22 [pid 5053] newfstatat(3, "", [pid 5632] <... mmap resumed>) = 0x7f1263f98000 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] +++ exited with 0 +++ [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5631] close(22 [pid 5629] close(22 [pid 5628] close(23 [pid 5632] mkdir("./file0", 000 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5631] close(23 [pid 5629] close(23 [pid 5628] close(24 [pid 5053] getdents64(3, [pid 5051] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5631] close(24 [pid 5629] close(24 [pid 5628] close(25 [pid 5053] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] <... mkdir resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5631] close(25 [pid 5629] close(25 [pid 5628] close(26 [pid 5053] newfstatat(AT_FDCWD, "./92/binderfs", [pid 5051] newfstatat(3, "", [pid 5632] symlink(NULL, NULL [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5632] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5631] close(26 [pid 5629] close(26 [pid 5628] close(27 [pid 5053] unlink("./92/binderfs" [pid 5051] getdents64(3, [pid 5632] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5631] close(27 [pid 5629] close(27 [pid 5628] close(28 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5628] close(29 [pid 5632] <... mount resumed>) = 0 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(28 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5631] close(28 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] exit_group(0 [pid 5632] open(NULL, O_RDONLY [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] close(29 [pid 5628] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] <... open resumed>) = -1 EFAULT (Bad address) [pid 5631] close(29 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] close(3 [pid 5629] exit_group(0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... exit_group resumed>) = ? [pid 5053] newfstatat(AT_FDCWD, "./92/file0", [pid 5051] newfstatat(AT_FDCWD, "./95/binderfs", [pid 5632] <... close resumed>) = 0 [pid 5631] exit_group(0 [pid 5628] +++ exited with 0 +++ [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5632] close(4 [pid 5631] <... exit_group resumed>) = ? [pid 5051] unlink("./95/binderfs" [pid 5632] <... close resumed>) = 0 [pid 5629] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5053] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5632] close(5 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] close(6) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5050] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5632] close(7 [pid 5631] +++ exited with 0 +++ [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5051] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... openat resumed>) = 3 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5632] close(8 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(3, "", [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./95/file0", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5632] close(9 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] getdents64(3, [pid 5048] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5052] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] close(10 [pid 5053] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5051] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... openat resumed>) = 3 [pid 5632] close(11 [pid 5053] rmdir("./92/file0" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5051] newfstatat(4, "", [pid 5048] newfstatat(3, "", [pid 5632] close(12 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5052] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5632] close(13 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] newfstatat(AT_FDCWD, "./91/binderfs", [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./98/binderfs", [pid 5051] getdents64(4, [pid 5048] getdents64(3, [pid 5632] close(14 [pid 5053] close(3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5632] close(15 [pid 5052] unlink("./98/binderfs" [pid 5051] close(4 [pid 5048] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./92" [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] unlink("./91/binderfs" [pid 5632] close(16 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(AT_FDCWD, "./91/binderfs", [pid 5632] close(17 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./95/file0" [pid 5632] close(18 [pid 5052] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] unlink("./91/binderfs" [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... unlink resumed>) = 0 [pid 5632] close(19 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(20) = -1 EBADF (Bad file descriptor) [pid 5632] close(21) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] close(22 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5048] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./98/file0", [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] close(23 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] close(3 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./93", 0777 [pid 5632] close(24 [pid 5052] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] rmdir("./95" [pid 5048] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] close(25 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... openat resumed>) = 4 [pid 5632] close(26) = -1 EBADF (Bad file descriptor) [pid 5632] close(27) = -1 EBADF (Bad file descriptor) [pid 5632] close(28 [pid 5048] newfstatat(AT_FDCWD, "./91/file0", [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5632] close(29 [pid 5052] newfstatat(4, "", [pid 5048] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] exit_group(0 [pid 5052] getdents64(4, [pid 5053] <... openat resumed>) = 3 [pid 5051] mkdir("./96", 0777 [pid 5048] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] <... exit_group resumed>) = ? [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] +++ exited with 0 +++ [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] getdents64(4, [pid 5051] <... mkdir resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./91/file0", [pid 5048] <... openat resumed>) = 4 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(4, "", [pid 5052] close(4 [pid 5050] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... close resumed>) = 0 [pid 5052] rmdir("./98/file0" [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] getdents64(4, [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5049] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5048] getdents64(4, [pid 5052] getdents64(3, [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5052] close(3 [pid 5048] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] newfstatat(3, "", [pid 5048] rmdir("./91/file0" [pid 5053] <... close resumed>) = 0 [pid 5052] rmdir("./98" [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] close(3 [pid 5049] getdents64(3, [pid 5050] <... openat resumed>) = 4 [pid 5051] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... rmdir resumed>) = 0 [pid 5049] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(4, "", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./94/binderfs", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(4, [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5052] mkdir("./99", 0777 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] unlink("./94/binderfs"./strace-static-x86_64: Process 5633 attached [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 95 [pid 5050] getdents64(4, [pid 5049] <... unlink resumed>) = 0 [pid 5048] getdents64(3, [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] close(4 [pid 5633] set_robust_list(0x5555566e0760, 24 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] rmdir("./91/file0" [pid 5633] <... set_robust_list resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] close(3 [pid 5633] chdir("./93" [pid 5050] <... rmdir resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5633] <... chdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] getdents64(3, [pid 5049] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] rmdir("./91"./strace-static-x86_64: Process 5634 attached [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... openat resumed>) = 3 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 98 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... rmdir resumed>) = 0 [pid 5633] <... prctl resumed>) = 0 [pid 5633] setpgid(0, 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] newfstatat(AT_FDCWD, "./94/file0", [pid 5633] <... setpgid resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] close(3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] mkdir("./92", 0777 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] <... close resumed>) = 0 [pid 5634] set_robust_list(0x5555566e0760, 24 [pid 5052] close(3 [pid 5050] rmdir("./91" [pid 5049] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... mkdir resumed>) = 0 [pid 5633] <... openat resumed>) = 3 [pid 5052] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... rmdir resumed>) = 0 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5633] write(3, "1000", 4 [pid 5634] chdir("./96" [pid 5633] <... write resumed>) = 4 [pid 5049] newfstatat(4, "", [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5634] <... chdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5050] mkdir("./92", 0777 [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] getdents64(4, [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5633] close(3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] getdents64(4, [pid 5048] close(3 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5634] <... prctl resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5634] setpgid(0, 0 [pid 5633] <... close resumed>) = 0 [pid 5049] close(4 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5634] <... setpgid resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... close resumed>) = 0 [pid 5633] symlink("/dev/binderfs", "./binderfs" [pid 5049] rmdir("./94/file0" [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5633] <... symlink resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 101 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5635 attached [pid 5633] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] getdents64(3, [pid 5635] set_robust_list(0x5555566e0760, 24 [pid 5633] <... socket resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5633] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] close(3 [pid 5633] <... socket resumed>) = 4 [pid 5635] chdir("./99" [pid 5634] write(3, "1000", 4 [pid 5633] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] <... close resumed>) = 0 [pid 5635] <... chdir resumed>) = 0 [pid 5633] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] rmdir("./94" [pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5635] <... prctl resumed>) = 0 [pid 5633] <... bpf resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5636 attached [pid 5635] setpgid(0, 0 [pid 5634] <... write resumed>) = 4 [pid 5633] memfd_create("syzkaller", 0 [pid 5050] close(3 [pid 5635] <... setpgid resumed>) = 0 [pid 5634] close(3 [pid 5049] mkdir("./95", 0777 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 94 [pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5634] <... close resumed>) = 0 [pid 5633] <... memfd_create resumed>) = 5 [pid 5050] <... close resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5634] symlink("/dev/binderfs", "./binderfs" [pid 5633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5636] set_robust_list(0x5555566e0760, 24 [pid 5635] <... openat resumed>) = 3 [pid 5633] <... mmap resumed>) = 0x7f1263f98000 [pid 5634] <... symlink resumed>) = 0 [pid 5636] <... set_robust_list resumed>) = 0 [pid 5635] write(3, "1000", 4 [pid 5633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5635] <... write resumed>) = 4 [pid 5633] mkdir("./file0", 000 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5635] close(3) = 0 [pid 5633] <... mkdir resumed>) = 0 [pid 5635] symlink("/dev/binderfs", "./binderfs" [pid 5636] chdir("./92" [pid 5635] <... symlink resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5049] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5635] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5633] symlink(NULL, NULL [pid 5049] close(3./strace-static-x86_64: Process 5637 attached [pid 5636] <... chdir resumed>) = 0 [pid 5635] <... socket resumed>) = 3 [pid 5634] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5633] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5049] <... close resumed>) = 0 [pid 5637] set_robust_list(0x5555566e0760, 24 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 94 [pid 5637] <... set_robust_list resumed>) = 0 [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5635] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5634] <... socket resumed>) = 3 [pid 5633] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5637] chdir("./92" [pid 5636] <... prctl resumed>) = 0 [pid 5635] <... socket resumed>) = 4 [pid 5634] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5633] <... mount resumed>) = 0 [pid 5637] <... chdir resumed>) = 0 [pid 5636] setpgid(0, 0 [pid 5634] <... socket resumed>) = 4 [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5636] <... setpgid resumed>) = 0 [pid 5634] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5637] <... prctl resumed>) = 0 [pid 5634] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5637] setpgid(0, 0 [pid 5635] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5634] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5633] open(NULL, O_RDONLY [pid 5635] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5633] <... open resumed>) = -1 EFAULT (Bad address) [pid 5637] <... setpgid resumed>) = 0 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5635] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5634] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5633] close(3 [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5635] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5633] <... close resumed>) = 0 ./strace-static-x86_64: Process 5638 attached [pid 5635] memfd_create("syzkaller", 0 [pid 5634] memfd_create("syzkaller", 0 [pid 5633] close(4 [pid 5637] <... openat resumed>) = 3 [pid 5638] set_robust_list(0x5555566e0760, 24 [pid 5637] write(3, "1000", 4 [pid 5636] <... openat resumed>) = 3 [pid 5635] <... memfd_create resumed>) = 5 [pid 5633] <... close resumed>) = 0 [pid 5638] <... set_robust_list resumed>) = 0 [pid 5637] <... write resumed>) = 4 [pid 5635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5633] close(5 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 97 [pid 5638] chdir("./95" [pid 5637] close(3 [pid 5635] <... mmap resumed>) = 0x7f1263f98000 [pid 5633] <... close resumed>) = 0 [pid 5637] <... close resumed>) = 0 [pid 5636] write(3, "1000", 4 [pid 5635] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5633] close(6 [pid 5638] <... chdir resumed>) = 0 [pid 5637] symlink("/dev/binderfs", "./binderfs" [pid 5636] <... write resumed>) = 4 [pid 5635] mkdir("./file0", 000 [pid 5634] <... memfd_create resumed>) = 5 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5636] close(3 [pid 5634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5633] close(7 [pid 5637] <... symlink resumed>) = 0 [pid 5638] <... prctl resumed>) = 0 [pid 5636] <... close resumed>) = 0 [pid 5635] <... mkdir resumed>) = 0 [pid 5634] <... mmap resumed>) = 0x7f1263f98000 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] setpgid(0, 0 [pid 5633] close(8 [pid 5638] <... setpgid resumed>) = 0 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] close(9) = -1 EBADF (Bad file descriptor) [pid 5633] close(10 [pid 5635] symlink(NULL, NULL [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... openat resumed>) = 3 [pid 5635] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5633] close(11) = -1 EBADF (Bad file descriptor) [pid 5635] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5633] close(12 [pid 5638] write(3, "1000", 4 [pid 5635] <... mount resumed>) = 0 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... write resumed>) = 4 [pid 5638] close(3) = 0 [pid 5633] close(13) = -1 EBADF (Bad file descriptor) [pid 5638] symlink("/dev/binderfs", "./binderfs" [pid 5633] close(14) = -1 EBADF (Bad file descriptor) [pid 5635] open(NULL, O_RDONLY [pid 5633] close(15 [pid 5638] <... symlink resumed>) = 0 [pid 5635] <... open resumed>) = -1 EFAULT (Bad address) [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5635] close(3 [pid 5633] close(16 [pid 5638] <... socket resumed>) = 3 [pid 5635] <... close resumed>) = 0 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(17) = -1 EBADF (Bad file descriptor) [pid 5635] close(4 [pid 5633] close(18 [pid 5638] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5635] <... close resumed>) = 0 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... socket resumed>) = 4 [pid 5633] close(19 [pid 5637] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5636] symlink("/dev/binderfs", "./binderfs" [pid 5635] close(5 [pid 5634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = 0 [pid 5633] close(20 [pid 5638] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5636] <... symlink resumed>) = 0 [pid 5635] close(6 [pid 5634] mkdir("./file0", 000 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... socket resumed>) = 3 [pid 5638] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(21 [pid 5638] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5635] close(7 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(22 [pid 5635] close(8 [pid 5634] <... mkdir resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] memfd_create("syzkaller", 0 [pid 5635] close(9 [pid 5633] close(23 [pid 5638] <... memfd_create resumed>) = 5 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] close(10 [pid 5633] close(24 [pid 5638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... mmap resumed>) = 0x7f1263f98000 [pid 5635] close(11 [pid 5633] close(25) = -1 EBADF (Bad file descriptor) [pid 5638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(26 [pid 5638] mkdir("./file0", 000 [pid 5635] close(12 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... mkdir resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(27 [pid 5635] close(13 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(28 [pid 5635] close(14 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(29 [pid 5638] symlink(NULL, NULL [pid 5635] close(15 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] exit_group(0 [pid 5638] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5635] close(16 [pid 5638] <... mount resumed>) = 0 [pid 5637] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5636] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] symlink(NULL, NULL [pid 5633] <... exit_group resumed>) = ? [pid 5634] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5636] <... socket resumed>) = 3 [pid 5637] <... socket resumed>) = 4 [pid 5636] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5634] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5638] open(NULL, O_RDONLY [pid 5635] close(17 [pid 5638] <... open resumed>) = -1 EFAULT (Bad address) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(3 [pid 5637] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5636] <... socket resumed>) = 4 [pid 5635] close(18 [pid 5634] <... mount resumed>) = 0 [pid 5633] +++ exited with 0 +++ [pid 5638] <... close resumed>) = 0 [pid 5637] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5636] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] open(NULL, O_RDONLY [pid 5638] close(4 [pid 5637] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5636] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5635] close(19 [pid 5634] <... open resumed>) = -1 EFAULT (Bad address) [pid 5638] <... close resumed>) = 0 [pid 5637] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5636] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5634] close(3 [pid 5638] close(5 [pid 5635] close(20 [pid 5638] <... close resumed>) = 0 [pid 5637] memfd_create("syzkaller", 0 [pid 5636] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] <... close resumed>) = 0 [pid 5053] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] close(6 [pid 5635] close(21 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... memfd_create resumed>) = 5 [pid 5636] memfd_create("syzkaller", 0 [pid 5634] close(4 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5634] <... close resumed>) = 0 [pid 5638] close(7) = -1 EBADF (Bad file descriptor) [pid 5638] close(8 [pid 5053] <... openat resumed>) = 3 [pid 5634] close(5 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(9 [pid 5636] <... memfd_create resumed>) = 5 [pid 5053] newfstatat(3, "", [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5634] <... close resumed>) = 0 [pid 5638] close(10) = -1 EBADF (Bad file descriptor) [pid 5634] close(6 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5638] close(11 [pid 5636] <... mmap resumed>) = 0x7f1263f98000 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(7 [pid 5638] close(12 [pid 5636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(8 [pid 5053] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] close(13 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5636] mkdir("./file0", 000 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(9 [pid 5053] newfstatat(AT_FDCWD, "./93/binderfs", [pid 5638] close(14 [pid 5635] close(22 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... mmap resumed>) = 0x7f1263f98000 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(10 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5638] close(15 [pid 5637] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5635] close(23 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./93/binderfs" [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(11 [pid 5053] <... unlink resumed>) = 0 [pid 5638] close(16 [pid 5635] close(24 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(17 [pid 5635] close(25 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(18 [pid 5635] close(26 [pid 5053] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(12 [pid 5638] close(19 [pid 5637] mkdir("./file0", 000 [pid 5636] <... mkdir resumed>) = 0 [pid 5635] close(27 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5634] close(13 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] close(28) = -1 EBADF (Bad file descriptor) [pid 5635] close(29) = -1 EBADF (Bad file descriptor) [pid 5635] exit_group(0) = ? [pid 5634] close(14 [pid 5053] newfstatat(AT_FDCWD, "./93/file0", [pid 5638] close(20 [pid 5637] <... mkdir resumed>) = 0 [pid 5636] symlink(NULL, NULL [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] symlink(NULL, NULL [pid 5636] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5634] close(15 [pid 5053] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] close(21 [pid 5637] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5636] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5634] close(16 [pid 5053] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5638] close(22 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... mount resumed>) = 0 [pid 5636] <... mount resumed>) = 0 [pid 5635] +++ exited with 0 +++ [pid 5634] close(17 [pid 5053] <... openat resumed>) = 4 [pid 5638] close(23 [pid 5637] open(NULL, O_RDONLY [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(4, "", [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(18 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5638] close(24 [pid 5637] <... open resumed>) = -1 EFAULT (Bad address) [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] open(NULL, O_RDONLY [pid 5634] close(19 [pid 5052] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] close(25 [pid 5637] close(3 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(20 [pid 5053] getdents64(4, [pid 5052] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5637] <... close resumed>) = 0 [pid 5638] close(26 [pid 5636] <... open resumed>) = -1 EFAULT (Bad address) [pid 5637] close(4 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = 0 [pid 5636] close(3 [pid 5634] close(21 [pid 5053] close(4 [pid 5638] close(27 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(5 [pid 5636] <... close resumed>) = 0 [pid 5634] close(22 [pid 5053] rmdir("./93/file0" [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5638] close(28 [pid 5636] close(4 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5638] close(29 [pid 5637] <... close resumed>) = 0 [pid 5636] <... close resumed>) = 0 [pid 5634] close(23 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(6 [pid 5636] close(5 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] exit_group(0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = 0 [pid 5634] close(24 [pid 5052] newfstatat(AT_FDCWD, "./99/binderfs", [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5638] <... exit_group resumed>) = ? [pid 5637] close(7 [pid 5636] close(6 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5638] +++ exited with 0 +++ [pid 5052] unlink("./99/binderfs") = 0 [pid 5052] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(25 [pid 5053] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5637] close(8 [pid 5636] close(7 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./93" [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(26 [pid 5052] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./99/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5637] close(9 [pid 5052] <... openat resumed>) = 4 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(27 [pid 5053] mkdir("./94", 0777 [pid 5637] close(10 [pid 5636] close(8 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(28 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5637] close(11 [pid 5636] close(9 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(29 [pid 5637] close(12 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(13 [pid 5634] exit_group(0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5637] close(14 [pid 5636] close(10 [pid 5634] <... exit_group resumed>) = ? [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5049] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5052] rmdir("./99/file0" [pid 5637] close(15 [pid 5636] close(11 [pid 5634] +++ exited with 0 +++ [pid 5052] <... rmdir resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] newfstatat(3, "", [pid 5637] close(16 [pid 5636] close(12 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(3 [pid 5049] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5052] rmdir("./99" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] mkdir("./100", 0777) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5049] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./95/binderfs", [pid 5051] newfstatat(3, "", [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(17 [pid 5636] close(13 [pid 5053] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] unlink("./95/binderfs" [pid 5636] close(14 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... unlink resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5051] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5637] close(18 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(15 [pid 5053] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] newfstatat(AT_FDCWD, "./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5637] close(19 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] close(3 [pid 5051] unlink("./96/binderfs" [pid 5049] <... umount2 resumed>) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(16 [pid 5051] <... unlink resumed>) = 0 [pid 5051] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5639 attached [pid 5637] close(20 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5049] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(17 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 96 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5637] close(21 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(18 [pid 5051] <... umount2 resumed>) = 0 [pid 5051] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./96/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5051] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", [pid 5637] close(22 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./95/file0", [pid 5639] set_robust_list(0x5555566e0760, 24 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(19 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 102 [pid 5637] close(23 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... set_robust_list resumed>) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(20 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5640 attached [pid 5640] set_robust_list(0x5555566e0760, 24 [pid 5051] getdents64(4, [pid 5640] <... set_robust_list resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5640] chdir("./100" [pid 5639] chdir("./94" [pid 5637] close(24 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5049] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(21 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5640] <... chdir resumed>) = 0 [pid 5637] close(25 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(4 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5639] <... chdir resumed>) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(22 [pid 5051] <... close resumed>) = 0 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(26 [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5640] <... prctl resumed>) = 0 [pid 5051] rmdir("./96/file0" [pid 5639] <... prctl resumed>) = 0 [pid 5640] setpgid(0, 0 [pid 5639] setpgid(0, 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(23 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5640] <... setpgid resumed>) = 0 [pid 5639] <... setpgid resumed>) = 0 [pid 5637] close(27 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(4, "", [pid 5640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(24 [pid 5640] <... openat resumed>) = 3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5640] write(3, "1000", 4 [pid 5637] close(28 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5640] <... write resumed>) = 4 [pid 5639] <... openat resumed>) = 3 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(25 [pid 5049] getdents64(4, [pid 5640] close(3 [pid 5637] close(29 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5640] <... close resumed>) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5640] symlink("/dev/binderfs", "./binderfs" [pid 5639] write(3, "1000", 4 [pid 5636] close(26 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5639] <... write resumed>) = 4 [pid 5637] exit_group(0 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5639] close(3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5637] <... exit_group resumed>) = ? [pid 5639] <... close resumed>) = 0 [pid 5640] <... symlink resumed>) = 0 [pid 5639] symlink("/dev/binderfs", "./binderfs" [pid 5637] +++ exited with 0 +++ [pid 5636] close(27 [pid 5051] <... close resumed>) = 0 [pid 5049] close(4 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... close resumed>) = 0 [pid 5639] <... symlink resumed>) = 0 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./95/file0" [pid 5050] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5050] newfstatat(3, "", [pid 5639] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5636] close(28 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5639] <... socket resumed>) = 3 [pid 5050] getdents64(3, [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] close(3 [pid 5640] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5050] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5640] <... socket resumed>) = 3 [pid 5636] close(29 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5639] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] newfstatat(AT_FDCWD, "./92/binderfs", [pid 5049] <... close resumed>) = 0 [pid 5640] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5639] <... socket resumed>) = 4 [pid 5636] exit_group(0 [pid 5051] rmdir("./96" [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] rmdir("./95" [pid 5639] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] unlink("./92/binderfs" [pid 5639] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... unlink resumed>) = 0 [pid 5050] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5639] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5640] <... socket resumed>) = 4 [pid 5639] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5636] <... exit_group resumed>) = ? [pid 5051] <... rmdir resumed>) = 0 [pid 5049] mkdir("./96", 0777 [pid 5639] memfd_create("syzkaller", 0 [pid 5640] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5640] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5640] memfd_create("syzkaller", 0 [pid 5051] mkdir("./97", 0777 [pid 5640] <... memfd_create resumed>) = 5 [pid 5051] <... mkdir resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5640] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5640] mkdir("./file0", 000 [pid 5639] <... memfd_create resumed>) = 5 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5640] <... mkdir resumed>) = 0 [pid 5639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5639] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5050] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(AT_FDCWD, "./92/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5636] +++ exited with 0 +++ [pid 5051] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 4 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] close(3 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] newfstatat(4, "", [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5640] symlink(NULL, NULL [pid 5051] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5640] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5640] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5640] <... mount resumed>) = 0 [pid 5050] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] close(4 [pid 5048] <... openat resumed>) = 3 [pid 5640] open(NULL, O_RDONLY [pid 5639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5050] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] newfstatat(3, "", [pid 5639] mkdir("./file0", 000 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 99 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] unlink("./92/binderfs") = 0 [pid 5640] <... open resumed>) = -1 EFAULT (Bad address) [pid 5050] rmdir("./92/file0") = 0 [pid 5640] close(3) = 0 [pid 5640] close(4./strace-static-x86_64: Process 5641 attached [pid 5048] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] set_robust_list(0x5555566e0760, 24 [pid 5050] getdents64(3, [pid 5048] <... umount2 resumed>) = 0 [pid 5048] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./92/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] rmdir("./92" [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 98 [pid 5048] <... openat resumed>) = 4 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5639] <... mkdir resumed>) = 0 [pid 5641] <... set_robust_list resumed>) = 0 [pid 5050] mkdir("./93", 0777 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5641] chdir("./97" [pid 5639] symlink(NULL, NULL [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5642 attached [pid 5641] <... chdir resumed>) = 0 [pid 5048] getdents64(4, [pid 5642] set_robust_list(0x5555566e0760, 24 [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5642] <... set_robust_list resumed>) = 0 [pid 5641] <... prctl resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] close(4 [pid 5642] chdir("./96" [pid 5641] setpgid(0, 0 [pid 5639] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5050] <... openat resumed>) = 3 [pid 5048] <... close resumed>) = 0 [pid 5642] <... chdir resumed>) = 0 [pid 5641] <... setpgid resumed>) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] rmdir("./92/file0" [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... rmdir resumed>) = 0 [pid 5642] <... prctl resumed>) = 0 [pid 5641] <... openat resumed>) = 3 [pid 5050] close(3 [pid 5048] getdents64(3, [pid 5642] setpgid(0, 0 [pid 5641] write(3, "1000", 4 [pid 5050] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5642] <... setpgid resumed>) = 0 [pid 5641] <... write resumed>) = 4 [pid 5639] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] close(3 [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5641] close(3 [pid 5639] <... mount resumed>) = 0 [pid 5641] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5641] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5048] rmdir("./92" [pid 5642] <... openat resumed>) = 3 [pid 5641] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... rmdir resumed>) = 0 [pid 5642] write(3, "1000", 4 [pid 5641] <... socket resumed>) = 3 [pid 5639] open(NULL, O_RDONLY [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 95 [pid 5048] mkdir("./93", 0777 [pid 5642] <... write resumed>) = 4 [pid 5641] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5639] <... open resumed>) = -1 EFAULT (Bad address) [pid 5642] close(3 [pid 5641] <... socket resumed>) = 4 [pid 5639] close(3 [pid 5048] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5643 attached [pid 5642] <... close resumed>) = 0 [pid 5641] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5643] set_robust_list(0x5555566e0760, 24 [pid 5642] symlink("/dev/binderfs", "./binderfs" [pid 5641] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5643] <... set_robust_list resumed>) = 0 [pid 5641] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5640] <... close resumed>) = 0 [pid 5639] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5643] chdir("./93" [pid 5642] <... symlink resumed>) = 0 [pid 5641] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5640] close(5 [pid 5639] close(4 [pid 5048] <... openat resumed>) = 3 [pid 5643] <... chdir resumed>) = 0 [pid 5642] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5641] memfd_create("syzkaller", 0 [pid 5640] <... close resumed>) = 0 [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5642] <... socket resumed>) = 3 [pid 5641] <... memfd_create resumed>) = 5 [pid 5640] close(6 [pid 5639] <... close resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5643] <... prctl resumed>) = 0 [pid 5642] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] setpgid(0, 0 [pid 5642] <... socket resumed>) = 4 [pid 5641] <... mmap resumed>) = 0x7f1263f98000 [pid 5640] close(7 [pid 5639] close(5 [pid 5643] <... setpgid resumed>) = 0 [pid 5642] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5642] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5640] close(8 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5641] mkdir("./file0", 000 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(6 [pid 5048] close(3 [pid 5642] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5640] close(9 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] memfd_create("syzkaller", 0 [pid 5641] <... mkdir resumed>) = 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(7 [pid 5048] <... close resumed>) = 0 [pid 5640] close(10 [pid 5642] <... memfd_create resumed>) = 5 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] close(11) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] close(12 [pid 5643] <... openat resumed>) = 3 [pid 5642] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5641] symlink(NULL, NULL [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(8 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5643] write(3, "1000", 4 [pid 5642] <... mmap resumed>) = 0x7f1263f98000 [pid 5641] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5640] close(13 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... write resumed>) = 4 [pid 5641] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(9 [pid 5642] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5643] close(3 [pid 5640] close(14 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(10 [pid 5640] close(15 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] mkdir("./file0", 000 [pid 5640] close(16 [pid 5639] close(11 [pid 5643] symlink("/dev/binderfs", "./binderfs" [pid 5641] <... mount resumed>) = 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... symlink resumed>) = 0 [pid 5640] close(17 [pid 5639] close(12 [pid 5641] open(NULL, O_RDONLY [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(13 [pid 5642] <... mkdir resumed>) = 0 [pid 5640] close(18 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] <... open resumed>) = -1 EFAULT (Bad address) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(14 [pid 5641] close(3 [pid 5640] close(19 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5644 attached [pid 5643] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5641] <... close resumed>) = 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(15 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 95 [pid 5641] close(4 [pid 5640] close(20 [pid 5644] set_robust_list(0x5555566e0760, 24 [pid 5643] <... socket resumed>) = 3 [pid 5642] symlink(NULL, NULL [pid 5641] <... close resumed>) = 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5642] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5641] close(5 [pid 5640] close(21 [pid 5639] close(16 [pid 5642] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] <... close resumed>) = 0 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... socket resumed>) = 4 [pid 5642] <... mount resumed>) = 0 [pid 5641] close(6 [pid 5640] close(22 [pid 5639] close(17 [pid 5643] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] chdir("./93" [pid 5643] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] close(23 [pid 5639] close(18 [pid 5644] <... chdir resumed>) = 0 [pid 5643] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5642] open(NULL, O_RDONLY [pid 5641] close(7 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5643] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5642] <... open resumed>) = -1 EFAULT (Bad address) [pid 5640] close(24 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... prctl resumed>) = 0 [pid 5644] setpgid(0, 0 [pid 5643] memfd_create("syzkaller", 0 [pid 5642] close(3 [pid 5641] close(8 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... setpgid resumed>) = 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = 0 [pid 5641] close(9 [pid 5639] close(19 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] close(4 [pid 5640] close(25 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(20 [pid 5644] <... openat resumed>) = 3 [pid 5642] <... close resumed>) = 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(5 [pid 5641] close(10 [pid 5640] close(26 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] close(27 [pid 5641] close(11 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = 0 [pid 5640] close(28 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(6 [pid 5640] close(29 [pid 5641] close(12 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(7 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] exit_group(0 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(13 [pid 5640] <... exit_group resumed>) = ? [pid 5639] close(21 [pid 5642] close(8 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(14 [pid 5639] close(22 [pid 5644] write(3, "1000", 4 [pid 5642] close(9 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... memfd_create resumed>) = 5 [pid 5639] close(23) = -1 EBADF (Bad file descriptor) [pid 5640] +++ exited with 0 +++ [pid 5641] close(15 [pid 5639] close(24 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... write resumed>) = 4 [pid 5643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5642] close(10 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(3 [pid 5643] <... mmap resumed>) = 0x7f1263f98000 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(16 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = 0 [pid 5644] symlink("/dev/binderfs", "./binderfs" [pid 5643] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5642] close(11 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(25 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5643] mkdir("./file0", 000 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(17 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(12 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(26 [pid 5644] <... symlink resumed>) = 0 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(18 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5642] close(13 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(27 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5644] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(19 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5643] <... mkdir resumed>) = 0 [pid 5642] close(14 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(28 [pid 5052] <... openat resumed>) = 3 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(20 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5642] close(15 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(29 [pid 5052] newfstatat(3, "", [pid 5644] <... socket resumed>) = 3 [pid 5643] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(21 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5639] exit_group(0) = ? [pid 5639] +++ exited with 0 +++ [pid 5052] getdents64(3, [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5642] close(16 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(22 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5644] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5642] close(17 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5644] <... socket resumed>) = 4 [pid 5643] <... mount resumed>) = 0 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(23 [pid 5053] <... openat resumed>) = 3 [pid 5052] newfstatat(AT_FDCWD, "./100/binderfs", [pid 5642] close(18 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(24 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5643] open(NULL, O_RDONLY [pid 5642] close(19 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5643] <... open resumed>) = -1 EFAULT (Bad address) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(25 [pid 5644] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] unlink("./100/binderfs" [pid 5644] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5643] close(3 [pid 5642] close(20 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... unlink resumed>) = 0 [pid 5644] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5643] <... close resumed>) = 0 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(26 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5644] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5643] close(4 [pid 5642] close(21 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./94/binderfs", [pid 5052] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5644] memfd_create("syzkaller", 0 [pid 5643] <... close resumed>) = 0 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(27 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5644] <... memfd_create resumed>) = 5 [pid 5643] close(5 [pid 5642] close(22 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./94/binderfs" [pid 5052] <... umount2 resumed>) = 0 [pid 5644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5643] <... close resumed>) = 0 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(28 [pid 5053] <... unlink resumed>) = 0 [pid 5644] <... mmap resumed>) = 0x7f1263f98000 [pid 5643] close(6 [pid 5642] close(23 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5644] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(29 [pid 5644] mkdir("./file0", 000 [pid 5642] close(24 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5644] <... mkdir resumed>) = 0 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] exit_group(0 [pid 5053] <... umount2 resumed>) = 0 [pid 5053] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./100/file0", [pid 5644] symlink(NULL, NULL [pid 5643] close(7 [pid 5642] close(25 [pid 5641] <... exit_group resumed>) = ? [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5644] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./94/file0", [pid 5644] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5643] close(8 [pid 5642] close(26 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] +++ exited with 0 +++ [pid 5053] <... openat resumed>) = 4 [pid 5052] <... openat resumed>) = 4 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5644] <... mount resumed>) = 0 [pid 5643] close(9 [pid 5642] close(27 [pid 5053] newfstatat(4, "", [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5644] open(NULL, O_RDONLY [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(4, "", [pid 5644] <... open resumed>) = -1 EFAULT (Bad address) [pid 5643] close(10 [pid 5642] close(28 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5644] close(3 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5644] <... close resumed>) = 0 [pid 5643] close(11 [pid 5642] close(29 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, [pid 5644] close(4 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = 0 [pid 5643] close(12 [pid 5642] exit_group(0 [pid 5053] getdents64(4, [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5644] close(5 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... exit_group resumed>) = ? [pid 5644] <... close resumed>) = 0 [pid 5643] close(13 [pid 5642] +++ exited with 0 +++ [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] getdents64(4, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5644] close(6 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(14 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5644] close(7 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(4 [pid 5052] close(4 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(15 [pid 5053] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5644] close(8 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] rmdir("./94/file0" [pid 5052] rmdir("./100/file0" [pid 5051] newfstatat(3, "", [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(16 [pid 5644] close(9 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(17 [pid 5644] close(10 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(18 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5644] close(11 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(19 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] getdents64(3, [pid 5049] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5644] close(12 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(20 [pid 5053] getdents64(3, [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5644] close(13 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] close(3 [pid 5051] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(21 [pid 5644] close(14 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(22 [pid 5644] close(15 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(23 [pid 5644] close(16 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(24 [pid 5644] close(17 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(25 [pid 5644] close(18 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(26 [pid 5049] <... openat resumed>) = 3 [pid 5644] close(19 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5052] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(3, "", [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(27 [pid 5053] <... close resumed>) = 0 [pid 5644] close(20 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(28 [pid 5644] close(21 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(29 [pid 5644] close(22 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] exit_group(0 [pid 5644] close(23 [pid 5643] <... exit_group resumed>) = ? [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] +++ exited with 0 +++ [pid 5053] rmdir("./94" [pid 5052] rmdir("./100" [pid 5051] newfstatat(AT_FDCWD, "./97/binderfs", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5644] close(24 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(25) = -1 EBADF (Bad file descriptor) [pid 5644] close(26) = -1 EBADF (Bad file descriptor) [pid 5644] close(27) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5644] close(28) = -1 EBADF (Bad file descriptor) [pid 5644] close(29 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5644] exit_group(0) = ? [pid 5644] +++ exited with 0 +++ [pid 5053] mkdir("./95", 0777 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] unlink("./97/binderfs" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... unlink resumed>) = 0 [pid 5050] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] newfstatat(3, "", [pid 5048] <... openat resumed>) = 3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(3, "", [pid 5050] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5051] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] getdents64(3, [pid 5052] mkdir("./101", 0777 [pid 5050] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./93/binderfs", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(AT_FDCWD, "./93/binderfs", [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... mkdir resumed>) = 0 [pid 5051] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] unlink("./93/binderfs" [pid 5048] unlink("./93/binderfs" [pid 5053] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... unlink resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./96/binderfs", [pid 5048] <... unlink resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] newfstatat(AT_FDCWD, "./97/file0", [pid 5048] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5050] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] unlink("./96/binderfs" [pid 5048] newfstatat(AT_FDCWD, "./93/file0", [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] close(3 [pid 5052] close(3 [pid 5051] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5050] newfstatat(AT_FDCWD, "./93/file0", [pid 5049] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 4 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(4, "", [pid 5050] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] getdents64(4, [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... openat resumed>) = 4 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] newfstatat(4, "", [pid 5051] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] close(4) = 0 [pid 5051] rmdir("./97/file0") = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(4, [pid 5048] getdents64(4, [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(4, [pid 5048] close(4 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] close(4 [pid 5048] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./96/file0", [pid 5048] rmdir("./93/file0" [pid 5050] rmdir("./93/file0" [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... rmdir resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] getdents64(3, [pid 5050] <... rmdir resumed>) = 0 [pid 5048] getdents64(3, ./strace-static-x86_64: Process 5645 attached [pid 5050] getdents64(3, ./strace-static-x86_64: Process 5646 attached [pid 5645] set_robust_list(0x5555566e0760, 24 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 97 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5646] set_robust_list(0x5555566e0760, 24 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 103 [pid 5051] close(3 [pid 5050] close(3 [pid 5049] newfstatat(4, "", [pid 5048] close(3 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5645] <... set_robust_list resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... close resumed>) = 0 [pid 5646] chdir("./101" [pid 5645] chdir("./95" [pid 5050] rmdir("./93" [pid 5048] rmdir("./93" [pid 5645] <... chdir resumed>) = 0 [pid 5051] rmdir("./97" [pid 5049] getdents64(4, [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] <... chdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... rmdir resumed>) = 0 [pid 5645] <... prctl resumed>) = 0 [pid 5645] setpgid(0, 0 [pid 5049] getdents64(4, [pid 5645] <... setpgid resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] mkdir("./98", 0777 [pid 5049] close(4) = 0 [pid 5049] rmdir("./96/file0" [pid 5051] <... mkdir resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] mkdir("./94", 0777 [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... openat resumed>) = 3 [pid 5646] <... prctl resumed>) = 0 [pid 5049] getdents64(3, [pid 5646] setpgid(0, 0 [pid 5645] <... openat resumed>) = 3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] close(3 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... close resumed>) = 0 [pid 5051] close(3 [pid 5050] <... mkdir resumed>) = 0 [pid 5646] <... setpgid resumed>) = 0 [pid 5645] write(3, "1000", 4 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] rmdir("./96" [pid 5048] mkdir("./94", 0777 [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5645] <... write resumed>) = 4 [pid 5051] <... close resumed>) = 0 [pid 5645] close(3 [pid 5050] <... openat resumed>) = 3 [pid 5645] <... close resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5646] <... openat resumed>) = 3 [pid 5645] symlink("/dev/binderfs", "./binderfs" [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5645] <... symlink resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5646] write(3, "1000", 4 [pid 5645] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5050] close(3 [pid 5645] <... socket resumed>) = 3 [pid 5050] <... close resumed>) = 0 [pid 5646] <... write resumed>) = 4 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5049] mkdir("./97", 0777) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5647 attached [pid 5646] close(3 [pid 5645] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 3 [pid 5647] set_robust_list(0x5555566e0760, 24 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 100 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5647] chdir("./98" [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] close(3 [pid 5647] <... chdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] <... prctl resumed>) = 0 [pid 5647] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5648 attached [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] <... close resumed>) = 0 [pid 5645] <... socket resumed>) = 4 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5646] symlink("/dev/binderfs", "./binderfs" [pid 5647] <... openat resumed>) = 3 [pid 5646] <... symlink resumed>) = 0 [pid 5645] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 96 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5648] set_robust_list(0x5555566e0760, 24 [pid 5646] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5648] <... set_robust_list resumed>) = 0 [pid 5048] close(3 [pid 5646] <... socket resumed>) = 3 [pid 5648] chdir("./94" [pid 5647] write(3, "1000", 4 [pid 5646] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5645] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5048] <... close resumed>) = 0 [pid 5646] <... socket resumed>) = 4 [pid 5645] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5648] <... chdir resumed>) = 0 [pid 5647] <... write resumed>) = 4 [pid 5646] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5645] <... bpf resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5649 attached [pid 5647] close(3 [pid 5649] set_robust_list(0x5555566e0760, 24 [pid 5647] <... close resumed>) = 0 [pid 5647] symlink("/dev/binderfs", "./binderfs" [pid 5649] <... set_robust_list resumed>) = 0 [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5647] <... symlink resumed>) = 0 [pid 5646] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5645] memfd_create("syzkaller", 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 99 ./strace-static-x86_64: Process 5650 attached [pid 5649] chdir("./97" [pid 5648] <... prctl resumed>) = 0 [pid 5647] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5646] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5645] <... memfd_create resumed>) = 5 [pid 5650] set_robust_list(0x5555566e0760, 24 [pid 5649] <... chdir resumed>) = 0 [pid 5648] setpgid(0, 0 [pid 5647] <... socket resumed>) = 3 [pid 5646] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 96 [pid 5650] <... set_robust_list resumed>) = 0 [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5648] <... setpgid resumed>) = 0 [pid 5646] memfd_create("syzkaller", 0 [pid 5645] <... mmap resumed>) = 0x7f1263f98000 [pid 5649] <... prctl resumed>) = 0 [pid 5647] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5646] <... memfd_create resumed>) = 5 [pid 5645] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5650] chdir("./94" [pid 5649] setpgid(0, 0 [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5647] <... socket resumed>) = 4 [pid 5646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5645] mkdir("./file0", 000 [pid 5650] <... chdir resumed>) = 0 [pid 5649] <... setpgid resumed>) = 0 [pid 5648] <... openat resumed>) = 3 [pid 5647] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5646] <... mmap resumed>) = 0x7f1263f98000 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5647] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5645] <... mkdir resumed>) = 0 [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5648] write(3, "1000", 4 [pid 5650] <... prctl resumed>) = 0 [pid 5648] <... write resumed>) = 4 [pid 5646] mkdir("./file0", 000 [pid 5645] symlink(NULL, NULL [pid 5650] setpgid(0, 0 [pid 5648] close(3 [pid 5647] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5649] <... openat resumed>) = 3 [pid 5648] <... close resumed>) = 0 [pid 5647] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5650] <... setpgid resumed>) = 0 [pid 5648] symlink("/dev/binderfs", "./binderfs" [pid 5646] <... mkdir resumed>) = 0 [pid 5645] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5649] write(3, "1000", 4 [pid 5647] memfd_create("syzkaller", 0 [pid 5645] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5649] <... write resumed>) = 4 [pid 5648] <... symlink resumed>) = 0 [pid 5646] symlink(NULL, NULL [pid 5649] close(3 [pid 5648] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5647] <... memfd_create resumed>) = 5 [pid 5646] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5649] <... close resumed>) = 0 [pid 5648] <... socket resumed>) = 3 [pid 5647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5650] <... openat resumed>) = 3 [pid 5649] symlink("/dev/binderfs", "./binderfs" [pid 5648] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5646] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5645] <... mount resumed>) = 0 [pid 5649] <... symlink resumed>) = 0 [pid 5648] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5647] <... mmap resumed>) = 0x7f1263f98000 [pid 5645] open(NULL, O_RDONLY [pid 5650] write(3, "1000", 4 [pid 5649] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5648] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5647] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5645] <... open resumed>) = -1 EFAULT (Bad address) [pid 5650] <... write resumed>) = 4 [pid 5649] <... socket resumed>) = 3 [pid 5647] mkdir("./file0", 000 [pid 5646] <... mount resumed>) = 0 [pid 5650] close(3 [pid 5648] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5646] open(NULL, O_RDONLY [pid 5645] close(3 [pid 5650] <... close resumed>) = 0 [pid 5649] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5648] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5646] <... open resumed>) = -1 EFAULT (Bad address) [pid 5645] <... close resumed>) = 0 [pid 5650] symlink("/dev/binderfs", "./binderfs" [pid 5645] close(4 [pid 5646] close(3 [pid 5650] <... symlink resumed>) = 0 [pid 5649] <... socket resumed>) = 4 [pid 5648] memfd_create("syzkaller", 0 [pid 5647] <... mkdir resumed>) = 0 [pid 5646] <... close resumed>) = 0 [pid 5645] <... close resumed>) = 0 [pid 5649] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5649] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5647] symlink(NULL, NULL [pid 5650] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5649] memfd_create("syzkaller", 0 [pid 5648] <... memfd_create resumed>) = 5 [pid 5646] close(4 [pid 5645] close(5 [pid 5649] <... memfd_create resumed>) = 5 [pid 5647] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5646] <... close resumed>) = 0 [pid 5645] <... close resumed>) = 0 [pid 5650] <... socket resumed>) = 3 [pid 5650] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5648] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5647] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5646] close(5 [pid 5645] close(6 [pid 5650] <... socket resumed>) = 4 [pid 5649] <... mmap resumed>) = 0x7f1263f98000 [pid 5648] <... mmap resumed>) = 0x7f1263f98000 [pid 5647] <... mount resumed>) = 0 [pid 5646] <... close resumed>) = 0 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5645] close(7 [pid 5646] close(6 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(8 [pid 5646] close(7 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5648] mkdir("./file0", 000 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(9 [pid 5646] close(8 [pid 5649] mkdir("./file0", 000 [pid 5647] open(NULL, O_RDONLY [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5649] <... mkdir resumed>) = 0 [pid 5648] <... mkdir resumed>) = 0 [pid 5647] <... open resumed>) = -1 EFAULT (Bad address) [pid 5646] close(9 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5647] close(3 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(10 [pid 5650] memfd_create("syzkaller", 0 [pid 5649] symlink(NULL, NULL [pid 5648] symlink(NULL, NULL [pid 5647] <... close resumed>) = 0 [pid 5646] close(10 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... memfd_create resumed>) = 5 [pid 5649] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5648] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5647] close(4 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(11 [pid 5650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5649] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5648] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5646] close(11 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(12 [pid 5647] close(5 [pid 5646] close(12 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... mmap resumed>) = 0x7f1263f98000 [pid 5649] <... mount resumed>) = 0 [pid 5648] <... mount resumed>) = 0 [pid 5647] <... close resumed>) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(13 [pid 5649] open(NULL, O_RDONLY [pid 5648] open(NULL, O_RDONLY [pid 5647] close(6 [pid 5646] close(13 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5649] <... open resumed>) = -1 EFAULT (Bad address) [pid 5648] <... open resumed>) = -1 EFAULT (Bad address) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] mkdir("./file0", 000 [pid 5645] close(14 [pid 5648] close(3 [pid 5647] close(7 [pid 5646] close(14 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(3 [pid 5648] <... close resumed>) = 0 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(15 [pid 5649] <... close resumed>) = 0 [pid 5648] close(4 [pid 5647] close(8 [pid 5646] close(15 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... mkdir resumed>) = 0 [pid 5649] close(4 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(16 [pid 5650] symlink(NULL, NULL [pid 5649] <... close resumed>) = 0 [pid 5647] close(9 [pid 5646] close(16 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = 0 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(17 [pid 5649] close(5 [pid 5648] close(5 [pid 5647] close(10 [pid 5646] close(17 [pid 5650] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5649] <... close resumed>) = 0 [pid 5648] <... close resumed>) = 0 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(18 [pid 5649] close(6 [pid 5648] close(6 [pid 5647] close(11 [pid 5646] close(18 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(19 [pid 5650] <... mount resumed>) = 0 [pid 5649] close(7 [pid 5648] close(7 [pid 5647] close(12 [pid 5646] close(19 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(20 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5649] close(8 [pid 5647] close(13 [pid 5646] close(20 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(3 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(8 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(21 [pid 5650] <... close resumed>) = 0 [pid 5649] close(9 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(14 [pid 5646] close(21 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(4 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(9 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(22 [pid 5650] <... close resumed>) = 0 [pid 5649] close(10 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(15 [pid 5646] close(22 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(11 [pid 5647] close(16 [pid 5650] close(5 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(10 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(23 [pid 5650] <... close resumed>) = 0 [pid 5649] close(12 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(17 [pid 5646] close(23 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(6 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(11 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(24 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(13 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(18 [pid 5646] close(24 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(7 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(12 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(25 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(14 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(19 [pid 5646] close(25 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(8 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(13 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(26 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(15 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(20 [pid 5646] close(26 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(9 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(14 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(27 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(27 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(10 [pid 5649] close(16 [pid 5648] close(15 [pid 5647] close(21 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(28 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(28 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(11 [pid 5649] close(17 [pid 5648] close(16 [pid 5647] close(22 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(29 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(29 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(12 [pid 5649] close(18 [pid 5648] close(17 [pid 5647] close(23 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] exit_group(0 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] <... exit_group resumed>) = ? [pid 5650] close(13 [pid 5649] close(19 [pid 5648] close(18 [pid 5647] close(24 [pid 5646] exit_group(0 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(20 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(25 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(21 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... exit_group resumed>) = ? [pid 5647] close(26 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(27 [pid 5649] close(22 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(28 [pid 5649] close(23 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(29 [pid 5649] close(24 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(14 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] exit_group(0 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(19 [pid 5650] close(15 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(25 [pid 5648] close(20 [pid 5647] <... exit_group resumed>) = ? [pid 5650] close(16 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] +++ exited with 0 +++ [pid 5645] +++ exited with 0 +++ [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(26 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5650] close(17 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(21 [pid 5646] +++ exited with 0 +++ [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(27 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5650] close(18 [pid 5648] close(22 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(19) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5650] close(20 [pid 5649] close(28 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(23 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5650] close(21 [pid 5649] close(29 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5650] close(22 [pid 5649] exit_group(0) = ? [pid 5053] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(3, "", [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(23) = -1 EBADF (Bad file descriptor) [pid 5650] close(24 [pid 5648] close(24 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5650] close(25 [pid 5052] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(26 [pid 5052] <... openat resumed>) = 3 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(27) = -1 EBADF (Bad file descriptor) [pid 5650] close(28) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] newfstatat(3, "", [pid 5051] getdents64(3, [pid 5650] close(29 [pid 5648] close(25 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] exit_group(0 [pid 5648] close(26 [pid 5053] <... openat resumed>) = 3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5650] <... exit_group resumed>) = ? [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] +++ exited with 0 +++ [pid 5648] close(27 [pid 5053] newfstatat(3, "", [pid 5051] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(28) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5648] close(29) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5053] getdents64(3, [pid 5648] exit_group(0 [pid 5051] newfstatat(AT_FDCWD, "./98/binderfs", [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] unlink("./98/binderfs" [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./95/binderfs", [pid 5051] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5648] <... exit_group resumed>) = ? [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... umount2 resumed>) = 0 [pid 5049] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] unlink("./95/binderfs" [pid 5049] <... openat resumed>) = 3 [pid 5049] newfstatat(3, "", [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(AT_FDCWD, "./101/binderfs", [pid 5049] getdents64(3, [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5650] +++ exited with 0 +++ [pid 5052] unlink("./101/binderfs" [pid 5051] newfstatat(AT_FDCWD, "./98/file0", [pid 5049] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./97/binderfs", [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] unlink("./97/binderfs" [pid 5051] <... openat resumed>) = 4 [pid 5049] <... unlink resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5049] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5648] +++ exited with 0 +++ [pid 5053] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(4, [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] newfstatat(AT_FDCWD, "./95/file0", [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] getdents64(4, [pid 5049] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 3 [pid 5053] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] newfstatat(3, "", [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] close(4 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5051] rmdir("./98/file0" [pid 5049] newfstatat(AT_FDCWD, "./97/file0", [pid 5053] newfstatat(4, "", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... rmdir resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] getdents64(3, [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] newfstatat(AT_FDCWD, "./101/file0", [pid 5050] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] getdents64(3, [pid 5050] <... openat resumed>) = 3 [pid 5049] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(3, "", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(3 [pid 5049] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] close(4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... close resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5048] newfstatat(AT_FDCWD, "./94/binderfs", [pid 5053] <... close resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] getdents64(3, [pid 5053] rmdir("./95/file0" [pid 5051] rmdir("./98" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] newfstatat(4, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] unlink("./94/binderfs" [pid 5052] newfstatat(4, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(4, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] newfstatat(AT_FDCWD, "./94/binderfs", [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] getdents64(3, [pid 5052] getdents64(4, [pid 5049] getdents64(4, [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] mkdir("./99", 0777 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] close(3 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... mkdir resumed>) = 0 [pid 5050] unlink("./94/binderfs" [pid 5049] close(4 [pid 5048] <... unlink resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] getdents64(4, [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... unlink resumed>) = 0 [pid 5053] rmdir("./95" [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... close resumed>) = 0 [pid 5052] close(4 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] rmdir("./97/file0" [pid 5048] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] mkdir("./96", 0777 [pid 5052] rmdir("./101/file0" [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] newfstatat(AT_FDCWD, "./94/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(3, [pid 5050] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(4, "", [pid 5052] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(AT_FDCWD, "./94/file0", [pid 5052] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] getdents64(4, [pid 5052] rmdir("./101" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] close(4 [pid 5049] getdents64(3, [pid 5048] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] close(3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] close(3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] rmdir("./94/file0" [pid 5049] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... rmdir resumed>) = 0 [pid 5049] rmdir("./97" [pid 5048] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5651 attached [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] mkdir("./102", 0777 [pid 5050] getdents64(3, [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 101 [pid 5049] mkdir("./98", 0777 [pid 5053] close(3) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5651] set_robust_list(0x5555566e0760, 24 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] close(3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] getdents64(4, [pid 5050] rmdir("./94" [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... rmdir resumed>) = 0 [pid 5048] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] mkdir("./95", 0777 [pid 5048] close(4 [pid 5651] <... set_robust_list resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... close resumed>) = 0 ./strace-static-x86_64: Process 5652 attached [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5048] rmdir("./94/file0" [pid 5652] set_robust_list(0x5555566e0760, 24 [pid 5651] chdir("./99" [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... openat resumed>) = 3 [pid 5048] <... rmdir resumed>) = 0 [pid 5652] <... set_robust_list resumed>) = 0 [pid 5651] <... chdir resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 98 [pid 5052] close(3 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5652] chdir("./96" [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5651] <... prctl resumed>) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... close resumed>) = 0 [pid 5652] <... chdir resumed>) = 0 [pid 5049] close(3 [pid 5048] rmdir("./94" [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] setpgid(0, 0 [pid 5050] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5050] close(3) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5652] <... prctl resumed>) = 0 [pid 5651] <... setpgid resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5652] setpgid(0, 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 104 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] mkdir("./95", 0777 [pid 5652] <... setpgid resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 97 ./strace-static-x86_64: Process 5653 attached [pid 5653] set_robust_list(0x5555566e0760, 24) = 0 [pid 5653] chdir("./102"./strace-static-x86_64: Process 5654 attached [pid 5654] set_robust_list(0x5555566e0760, 24 [pid 5653] <... chdir resumed>) = 0 [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5654] <... set_robust_list resumed>) = 0 [pid 5653] setpgid(0, 0 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] <... setpgid resumed>) = 0 [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] <... mkdir resumed>) = 0 [pid 5651] <... openat resumed>) = 3 [pid 5652] <... openat resumed>) = 3 [pid 5652] write(3, "1000", 4 [pid 5651] write(3, "1000", 4 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5655 attached [pid 5651] <... write resumed>) = 4 [pid 5655] set_robust_list(0x5555566e0760, 24 [pid 5654] chdir("./95" [pid 5652] <... write resumed>) = 4 [pid 5651] close(3 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 100 [pid 5048] <... openat resumed>) = 3 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5652] close(3 [pid 5651] <... close resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5652] <... close resumed>) = 0 [pid 5655] chdir("./98" [pid 5654] <... chdir resumed>) = 0 [pid 5653] <... openat resumed>) = 3 [pid 5652] symlink("/dev/binderfs", "./binderfs" [pid 5651] symlink("/dev/binderfs", "./binderfs" [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5655] <... chdir resumed>) = 0 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] write(3, "1000", 4 [pid 5654] <... prctl resumed>) = 0 [pid 5653] <... write resumed>) = 4 [pid 5651] <... symlink resumed>) = 0 [pid 5048] close(3 [pid 5654] setpgid(0, 0 [pid 5653] close(3 [pid 5654] <... setpgid resumed>) = 0 [pid 5653] <... close resumed>) = 0 [pid 5652] <... symlink resumed>) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] symlink("/dev/binderfs", "./binderfs" [pid 5652] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5651] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... close resumed>) = 0 [pid 5655] <... prctl resumed>) = 0 [pid 5655] setpgid(0, 0 [pid 5653] <... symlink resumed>) = 0 [pid 5652] <... socket resumed>) = 3 [pid 5651] <... socket resumed>) = 3 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5655] <... setpgid resumed>) = 0 [pid 5653] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5653] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] <... socket resumed>) = 4 [pid 5654] <... openat resumed>) = 3 [pid 5653] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5653] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5653] memfd_create("syzkaller", 0 [pid 5652] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5651] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5653] <... memfd_create resumed>) = 5 [pid 5653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5654] write(3, "1000", 4) = 4 [pid 5654] close(3) = 0 [pid 5654] symlink("/dev/binderfs", "./binderfs" [pid 5652] <... socket resumed>) = 4 [pid 5655] <... openat resumed>) = 3 [pid 5654] <... symlink resumed>) = 0 [pid 5653] <... mmap resumed>) = 0x7f1263f98000 [pid 5652] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5651] <... socket resumed>) = 4 [pid 5654] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5653] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5655] write(3, "1000", 4 [pid 5654] <... socket resumed>) = 3 [pid 5653] mkdir("./file0", 000 [pid 5652] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5651] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5655] <... write resumed>) = 4 [pid 5654] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5653] <... mkdir resumed>) = 0 [pid 5652] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5651] <... bpf resumed>) = -1 E2BIG (Argument list too long) ./strace-static-x86_64: Process 5656 attached [pid 5655] close(3 [pid 5653] symlink(NULL, NULL [pid 5652] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5651] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5656] set_robust_list(0x5555566e0760, 24 [pid 5655] <... close resumed>) = 0 [pid 5654] <... socket resumed>) = 4 [pid 5653] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 97 [pid 5656] <... set_robust_list resumed>) = 0 [pid 5655] symlink("/dev/binderfs", "./binderfs" [pid 5654] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5653] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5651] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5652] memfd_create("syzkaller", 0 [pid 5656] chdir("./95" [pid 5655] <... symlink resumed>) = 0 [pid 5653] <... mount resumed>) = 0 [pid 5654] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5653] open(NULL, O_RDONLY [pid 5651] memfd_create("syzkaller", 0 [pid 5656] <... chdir resumed>) = 0 [pid 5655] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5654] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5653] <... open resumed>) = -1 EFAULT (Bad address) [pid 5652] <... memfd_create resumed>) = 5 [pid 5651] <... memfd_create resumed>) = 5 [pid 5654] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5653] close(3 [pid 5655] <... socket resumed>) = 3 [pid 5654] memfd_create("syzkaller", 0 [pid 5656] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] <... close resumed>) = 0 [pid 5652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5656] <... prctl resumed>) = 0 [pid 5654] <... memfd_create resumed>) = 5 [pid 5653] close(4 [pid 5651] <... mmap resumed>) = 0x7f1263f98000 [pid 5656] setpgid(0, 0 [pid 5655] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5653] <... close resumed>) = 0 [pid 5652] <... mmap resumed>) = 0x7f1263f98000 [pid 5656] <... setpgid resumed>) = 0 [pid 5655] <... socket resumed>) = 4 [pid 5654] <... mmap resumed>) = 0x7f1263f98000 [pid 5653] close(5 [pid 5651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] <... close resumed>) = 0 [pid 5652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5655] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5653] close(6 [pid 5652] mkdir("./file0", 000 [pid 5651] mkdir("./file0", 000 [pid 5656] <... openat resumed>) = 3 [pid 5655] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5654] mkdir("./file0", 000 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... mkdir resumed>) = 0 [pid 5656] write(3, "1000", 4 [pid 5655] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5653] close(7 [pid 5651] <... mkdir resumed>) = 0 [pid 5656] <... write resumed>) = 4 [pid 5655] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5656] close(3 [pid 5655] memfd_create("syzkaller", 0 [pid 5654] <... mkdir resumed>) = 0 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] symlink(NULL, NULL [pid 5656] <... close resumed>) = 0 [pid 5653] close(8 [pid 5652] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5651] symlink(NULL, NULL [pid 5656] symlink("/dev/binderfs", "./binderfs" [pid 5654] symlink(NULL, NULL [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5651] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5656] <... symlink resumed>) = 0 [pid 5655] <... memfd_create resumed>) = 5 [pid 5654] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5653] close(9 [pid 5652] <... mount resumed>) = 0 [pid 5651] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5654] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(10 [pid 5656] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5654] <... mount resumed>) = 0 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] open(NULL, O_RDONLY [pid 5651] <... mount resumed>) = 0 [pid 5656] <... socket resumed>) = 3 [pid 5655] <... mmap resumed>) = 0x7f1263f98000 [pid 5653] close(11 [pid 5652] <... open resumed>) = -1 EFAULT (Bad address) [pid 5655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5654] open(NULL, O_RDONLY [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(3 [pid 5656] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5655] mkdir("./file0", 000 [pid 5654] <... open resumed>) = -1 EFAULT (Bad address) [pid 5653] close(12 [pid 5652] <... close resumed>) = 0 [pid 5651] open(NULL, O_RDONLY [pid 5656] <... socket resumed>) = 4 [pid 5654] close(3 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... open resumed>) = -1 EFAULT (Bad address) [pid 5656] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5653] close(13 [pid 5652] close(4 [pid 5651] close(3 [pid 5656] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5655] <... mkdir resumed>) = 0 [pid 5654] <... close resumed>) = 0 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = 0 [pid 5651] <... close resumed>) = 0 [pid 5656] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5654] close(4 [pid 5653] close(14 [pid 5656] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5654] <... close resumed>) = 0 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(5 [pid 5656] memfd_create("syzkaller", 0 [pid 5654] close(5 [pid 5653] close(15 [pid 5652] <... close resumed>) = 0 [pid 5654] <... close resumed>) = 0 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(6 [pid 5651] close(4 [pid 5656] <... memfd_create resumed>) = 5 [pid 5655] symlink(NULL, NULL [pid 5654] close(6 [pid 5653] close(16 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = 0 [pid 5656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5655] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(7 [pid 5651] close(5 [pid 5656] <... mmap resumed>) = 0x7f1263f98000 [pid 5655] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = 0 [pid 5656] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5655] <... mount resumed>) = 0 [pid 5652] close(8 [pid 5651] close(6 [pid 5656] mkdir("./file0", 000) = 0 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(7) = -1 EBADF (Bad file descriptor) [pid 5652] close(9 [pid 5651] close(8 [pid 5655] open(NULL, O_RDONLY [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... open resumed>) = -1 EFAULT (Bad address) [pid 5652] close(10 [pid 5651] close(9 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(3 [pid 5652] close(11 [pid 5651] close(10 [pid 5655] <... close resumed>) = 0 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] symlink(NULL, NULL [pid 5655] close(4 [pid 5652] close(12 [pid 5651] close(11 [pid 5656] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5655] <... close resumed>) = 0 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5652] close(13 [pid 5651] close(12 [pid 5656] <... mount resumed>) = 0 [pid 5655] close(5 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(13) = -1 EBADF (Bad file descriptor) [pid 5652] close(14 [pid 5651] close(14 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(15 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = 0 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(15 [pid 5655] close(6 [pid 5652] close(16 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(16 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(17 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] open(NULL, O_RDONLY [pid 5655] close(7 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(17 [pid 5656] <... open resumed>) = -1 EFAULT (Bad address) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(7 [pid 5653] close(17 [pid 5652] close(18 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] close(3 [pid 5655] close(8 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(18 [pid 5656] <... close resumed>) = 0 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(19 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(9 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(19 [pid 5656] close(4 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(8 [pid 5653] close(18 [pid 5652] close(20 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = 0 [pid 5655] close(10 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(20 [pid 5656] close(5 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(9 [pid 5653] close(19 [pid 5652] close(21 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = 0 [pid 5655] close(11 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(21 [pid 5656] close(6 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(10 [pid 5653] close(20 [pid 5652] close(22 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(12 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(22 [pid 5656] close(7 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(11 [pid 5653] close(21 [pid 5652] close(23 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(13 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(23 [pid 5656] close(8 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(12 [pid 5653] close(22 [pid 5652] close(24 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(14 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(24 [pid 5656] close(9 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(13 [pid 5653] close(23 [pid 5652] close(25 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(15 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] close(10 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(14 [pid 5653] close(24 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(25 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(16 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(26 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] close(11 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(15 [pid 5653] close(25 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(26 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(17 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(27 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] close(12 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(16 [pid 5653] close(26 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(27 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(18 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(28 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] close(13 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(17 [pid 5653] close(27 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(19 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(29 [pid 5651] close(28 [pid 5656] close(14 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(18 [pid 5653] close(28 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(20 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] exit_group(0 [pid 5651] close(29 [pid 5656] close(15 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(19 [pid 5653] close(29 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(20 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(21 [pid 5652] <... exit_group resumed>) = ? [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] exit_group(0 [pid 5656] close(16 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] +++ exited with 0 +++ [pid 5651] exit_group(0 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(22 [pid 5654] close(21 [pid 5653] <... exit_group resumed>) = ? [pid 5656] close(17 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... exit_group resumed>) = ? [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(23 [pid 5656] close(18 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(24 [pid 5654] close(22 [pid 5653] +++ exited with 0 +++ [pid 5651] +++ exited with 0 +++ [pid 5656] close(19 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(25 [pid 5654] close(23 [pid 5656] close(20 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(26 [pid 5654] close(24 [pid 5053] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5656] close(21 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(27 [pid 5654] close(25 [pid 5053] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5656] close(22 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(28 [pid 5654] close(26 [pid 5053] newfstatat(3, "", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5656] close(23 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5656] close(24 [pid 5655] close(29 [pid 5654] close(27 [pid 5053] getdents64(3, [pid 5052] <... openat resumed>) = 3 [pid 5051] <... openat resumed>) = 3 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5654] close(28 [pid 5656] close(25 [pid 5655] exit_group(0 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5654] close(29) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... exit_group resumed>) = ? [pid 5051] newfstatat(3, "", [pid 5656] close(26 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] +++ exited with 0 +++ [pid 5654] exit_group(0 [pid 5053] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(3, [pid 5656] close(27 [pid 5654] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./102/binderfs", [pid 5051] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5656] close(28 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] newfstatat(AT_FDCWD, "./99/binderfs", [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5656] close(29 [pid 5052] unlink("./102/binderfs" [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] unlink("./99/binderfs" [pid 5049] <... restart_syscall resumed>) = 0 [pid 5656] exit_group(0 [pid 5053] newfstatat(AT_FDCWD, "./96/binderfs", [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5656] <... exit_group resumed>) = ? [pid 5656] +++ exited with 0 +++ [pid 5654] +++ exited with 0 +++ [pid 5051] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... restart_syscall resumed>) = 0 [pid 5052] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] unlink("./96/binderfs" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./99/file0", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] newfstatat(3, "", [pid 5048] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... openat resumed>) = 3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, [pid 5051] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] newfstatat(3, "", [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5048] newfstatat(3, "", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(3, [pid 5049] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] newfstatat(4, "", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./98/binderfs", [pid 5048] getdents64(3, [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] newfstatat(AT_FDCWD, "./95/binderfs", [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] getdents64(4, [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] unlink("./98/binderfs" [pid 5048] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] unlink("./95/binderfs" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./102/file0", [pid 5051] close(4 [pid 5050] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./95/binderfs", [pid 5051] rmdir("./99/file0" [pid 5049] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5050] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = 0 [pid 5048] unlink("./95/binderfs" [pid 5053] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(3, [pid 5048] <... unlink resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] close(3 [pid 5049] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] rmdir("./99" [pid 5050] newfstatat(AT_FDCWD, "./95/file0", [pid 5049] newfstatat(AT_FDCWD, "./98/file0", [pid 5052] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5050] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] newfstatat(AT_FDCWD, "./96/file0", [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(AT_FDCWD, "./95/file0", [pid 5053] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 4 [pid 5051] mkdir("./100", 0777 [pid 5050] <... openat resumed>) = 4 [pid 5049] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(4, "", [pid 5051] <... mkdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] newfstatat(4, "", [pid 5053] <... openat resumed>) = 4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5049] newfstatat(4, "", [pid 5048] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(4, [pid 5048] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... openat resumed>) = 4 [pid 5051] <... openat resumed>) = 3 [pid 5049] getdents64(4, [pid 5048] newfstatat(4, "", [pid 5053] newfstatat(4, "", [pid 5050] getdents64(4, [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, [pid 5049] close(4 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] <... close resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] rmdir("./98/file0" [pid 5048] getdents64(4, [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] close(3 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... rmdir resumed>) = 0 [pid 5053] getdents64(4, [pid 5052] getdents64(4, [pid 5050] getdents64(4, [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] getdents64(4, [pid 5052] close(4 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] close(4 [pid 5049] getdents64(3, [pid 5048] getdents64(4, [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... close resumed>) = 0 [pid 5053] close(4 [pid 5052] rmdir("./102/file0" [pid 5050] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] rmdir("./95/file0" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] close(4) = 0 [pid 5048] rmdir("./95/file0" [pid 5052] <... rmdir resumed>) = 0 [pid 5049] close(3 [pid 5048] <... rmdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5053] rmdir("./96/file0" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(3, [pid 5049] rmdir("./98" [pid 5053] <... rmdir resumed>) = 0 [pid 5052] close(3 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] close(3 [pid 5052] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 ./strace-static-x86_64: Process 5657 attached [pid 5053] getdents64(3, [pid 5052] rmdir("./102" [pid 5050] rmdir("./95" [pid 5657] set_robust_list(0x5555566e0760, 24 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 102 [pid 5049] mkdir("./99", 0777 [pid 5048] close(3 [pid 5657] <... set_robust_list resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5657] chdir("./100" [pid 5053] close(3 [pid 5050] mkdir("./96", 0777 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5657] <... chdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] mkdir("./103", 0777 [pid 5050] <... mkdir resumed>) = 0 [pid 5048] rmdir("./95" [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] rmdir("./96" [pid 5052] <... mkdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5657] <... prctl resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5657] setpgid(0, 0) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] mkdir("./96", 0777 [pid 5052] <... openat resumed>) = 3 [pid 5657] <... openat resumed>) = 3 [pid 5053] mkdir("./97", 0777 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... openat resumed>) = 3 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... mkdir resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] close(3 [pid 5657] write(3, "1000", 4 [pid 5052] <... close resumed>) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] close(3 [pid 5657] <... write resumed>) = 4 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5657] close(3 [pid 5053] <... openat resumed>) = 3 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... close resumed>) = 0 [pid 5050] close(3 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5657] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5048] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5048] close(3) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 101 ./strace-static-x86_64: Process 5659 attached [pid 5659] set_robust_list(0x5555566e0760, 24) = 0 [pid 5659] chdir("./99") = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5657] symlink("/dev/binderfs", "./binderfs" [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5660 attached [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5657] <... symlink resumed>) = 0 [pid 5053] close(3 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 105 ./strace-static-x86_64: Process 5658 attached [pid 5660] set_robust_list(0x5555566e0760, 24 [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5657] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] <... close resumed>) = 0 [pid 5658] set_robust_list(0x5555566e0760, 24 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 98 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5661 attached [pid 5659] <... prctl resumed>) = 0 [pid 5657] <... socket resumed>) = 3 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 98 [pid 5661] set_robust_list(0x5555566e0760, 24 [pid 5659] setpgid(0, 0 [pid 5661] <... set_robust_list resumed>) = 0 [pid 5659] <... setpgid resumed>) = 0 [pid 5661] chdir("./96" [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5661] <... chdir resumed>) = 0 [pid 5657] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE./strace-static-x86_64: Process 5662 attached [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5658] <... set_robust_list resumed>) = 0 [pid 5660] chdir("./96" [pid 5659] <... openat resumed>) = 3 [pid 5657] <... socket resumed>) = 4 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 99 [pid 5662] set_robust_list(0x5555566e0760, 24 [pid 5661] <... prctl resumed>) = 0 [pid 5658] chdir("./103" [pid 5660] <... chdir resumed>) = 0 [pid 5659] write(3, "1000", 4 [pid 5657] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5661] setpgid(0, 0 [pid 5658] <... chdir resumed>) = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5659] <... write resumed>) = 4 [pid 5657] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5662] chdir("./97" [pid 5661] <... setpgid resumed>) = 0 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5660] <... prctl resumed>) = 0 [pid 5659] close(3 [pid 5657] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5662] <... chdir resumed>) = 0 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5658] <... prctl resumed>) = 0 [pid 5660] setpgid(0, 0 [pid 5659] <... close resumed>) = 0 [pid 5657] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5661] <... openat resumed>) = 3 [pid 5658] setpgid(0, 0 [pid 5660] <... setpgid resumed>) = 0 [pid 5659] symlink("/dev/binderfs", "./binderfs" [pid 5657] memfd_create("syzkaller", 0 [pid 5662] <... prctl resumed>) = 0 [pid 5658] <... setpgid resumed>) = 0 [pid 5662] setpgid(0, 0 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5657] <... memfd_create resumed>) = 5 [pid 5662] <... setpgid resumed>) = 0 [pid 5661] write(3, "1000", 4 [pid 5658] <... openat resumed>) = 3 [pid 5659] <... symlink resumed>) = 0 [pid 5657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5660] <... openat resumed>) = 3 [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5661] <... write resumed>) = 4 [pid 5658] write(3, "1000", 4 [pid 5660] write(3, "1000", 4 [pid 5659] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5657] <... mmap resumed>) = 0x7f1263f98000 [pid 5661] close(3 [pid 5658] <... write resumed>) = 4 [pid 5660] <... write resumed>) = 4 [pid 5657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5662] <... openat resumed>) = 3 [pid 5661] <... close resumed>) = 0 [pid 5658] close(3 [pid 5660] close(3 [pid 5659] <... socket resumed>) = 3 [pid 5657] mkdir("./file0", 000 [pid 5661] symlink("/dev/binderfs", "./binderfs" [pid 5658] <... close resumed>) = 0 [pid 5660] <... close resumed>) = 0 [pid 5659] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5662] write(3, "1000", 4 [pid 5661] <... symlink resumed>) = 0 [pid 5658] symlink("/dev/binderfs", "./binderfs" [pid 5660] symlink("/dev/binderfs", "./binderfs" [pid 5659] <... socket resumed>) = 4 [pid 5657] <... mkdir resumed>) = 0 [pid 5662] <... write resumed>) = 4 [pid 5660] <... symlink resumed>) = 0 [pid 5662] close(3 [pid 5658] <... symlink resumed>) = 0 [pid 5660] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5657] symlink(NULL, NULL [pid 5661] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5659] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5661] <... socket resumed>) = 3 [pid 5659] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5662] <... close resumed>) = 0 [pid 5661] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5658] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5660] <... socket resumed>) = 3 [pid 5659] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5657] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5662] symlink("/dev/binderfs", "./binderfs" [pid 5658] <... socket resumed>) = 3 [pid 5657] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5661] <... socket resumed>) = 4 [pid 5659] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5659] memfd_create("syzkaller", 0 [pid 5662] <... symlink resumed>) = 0 [pid 5661] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5658] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5660] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5657] <... mount resumed>) = 0 [pid 5662] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5661] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5660] <... socket resumed>) = 4 [pid 5659] <... memfd_create resumed>) = 5 [pid 5658] <... socket resumed>) = 4 [pid 5662] <... socket resumed>) = 3 [pid 5661] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5658] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5660] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5657] open(NULL, O_RDONLY [pid 5662] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5661] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5658] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5660] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5659] <... mmap resumed>) = 0x7f1263f98000 [pid 5657] <... open resumed>) = -1 EFAULT (Bad address) [pid 5662] <... socket resumed>) = 4 [pid 5661] memfd_create("syzkaller", 0 [pid 5658] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5660] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5657] close(3 [pid 5662] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5658] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5660] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5661] <... memfd_create resumed>) = 5 [pid 5658] memfd_create("syzkaller", 0 [pid 5659] mkdir("./file0", 000 [pid 5662] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5660] memfd_create("syzkaller", 0 [pid 5657] <... close resumed>) = 0 [pid 5662] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5658] <... memfd_create resumed>) = 5 [pid 5660] <... memfd_create resumed>) = 5 [pid 5659] <... mkdir resumed>) = 0 [pid 5657] close(4 [pid 5662] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5662] memfd_create("syzkaller", 0 [pid 5661] <... mmap resumed>) = 0x7f1263f98000 [pid 5660] <... mmap resumed>) = 0x7f1263f98000 [pid 5657] <... close resumed>) = 0 [pid 5658] <... mmap resumed>) = 0x7f1263f98000 [pid 5661] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5657] close(5 [pid 5662] <... memfd_create resumed>) = 5 [pid 5661] mkdir("./file0", 000 [pid 5658] mkdir("./file0", 000 [pid 5660] mkdir("./file0", 000 [pid 5659] symlink(NULL, NULL [pid 5657] <... close resumed>) = 0 [pid 5662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5661] <... mkdir resumed>) = 0 [pid 5658] <... mkdir resumed>) = 0 [pid 5659] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5662] <... mmap resumed>) = 0x7f1263f98000 [pid 5662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5662] mkdir("./file0", 000 [pid 5659] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5662] <... mkdir resumed>) = 0 [pid 5659] <... mount resumed>) = 0 [pid 5662] symlink(NULL, NULL [pid 5661] symlink(NULL, NULL [pid 5658] symlink(NULL, NULL [pid 5660] <... mkdir resumed>) = 0 [pid 5657] close(6 [pid 5662] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5661] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5659] open(NULL, O_RDONLY [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5660] symlink(NULL, NULL [pid 5662] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5661] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5659] <... open resumed>) = -1 EFAULT (Bad address) [pid 5657] close(7 [pid 5658] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5660] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5659] close(3 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... mount resumed>) = 0 [pid 5661] <... mount resumed>) = 0 [pid 5660] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5659] <... close resumed>) = 0 [pid 5657] close(8 [pid 5662] open(NULL, O_RDONLY [pid 5661] open(NULL, O_RDONLY [pid 5658] <... mount resumed>) = 0 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... open resumed>) = -1 EFAULT (Bad address) [pid 5658] open(NULL, O_RDONLY [pid 5660] <... mount resumed>) = 0 [pid 5659] close(4 [pid 5657] close(9 [pid 5662] <... open resumed>) = -1 EFAULT (Bad address) [pid 5661] close(3 [pid 5658] <... open resumed>) = -1 EFAULT (Bad address) [pid 5659] <... close resumed>) = 0 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(3 [pid 5661] <... close resumed>) = 0 [pid 5658] close(3 [pid 5660] open(NULL, O_RDONLY [pid 5657] close(10 [pid 5659] close(5 [pid 5658] <... close resumed>) = 0 [pid 5659] <... close resumed>) = 0 [pid 5662] <... close resumed>) = 0 [pid 5661] close(4 [pid 5658] close(4 [pid 5660] <... open resumed>) = -1 EFAULT (Bad address) [pid 5662] close(4 [pid 5659] close(6 [pid 5662] <... close resumed>) = 0 [pid 5661] <... close resumed>) = 0 [pid 5660] close(3 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(5 [pid 5658] <... close resumed>) = 0 [pid 5661] close(5 [pid 5659] close(7 [pid 5662] <... close resumed>) = 0 [pid 5658] close(5 [pid 5660] <... close resumed>) = 0 [pid 5661] <... close resumed>) = 0 [pid 5658] <... close resumed>) = 0 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(6 [pid 5659] close(8 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(4 [pid 5662] close(6 [pid 5661] close(7 [pid 5658] close(6 [pid 5659] close(9 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = 0 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] close(11 [pid 5662] close(7 [pid 5661] close(8 [pid 5658] close(7 [pid 5660] close(5 [pid 5659] close(10 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(8 [pid 5661] close(9 [pid 5659] close(11 [pid 5657] close(12 [pid 5658] close(8 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = 0 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(9 [pid 5661] close(10 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(6 [pid 5659] close(12 [pid 5657] close(13 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(9 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(10 [pid 5661] close(11 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(7 [pid 5659] close(13 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(10 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] close(14 [pid 5662] close(11 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(8 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(11 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] close(15 [pid 5662] close(12 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(9 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(12 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] close(16 [pid 5662] close(13 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(10 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(13 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] close(17 [pid 5662] close(14 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(11 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(14 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(15 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(12 [pid 5657] close(18 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(15 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(16 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(13 [pid 5657] close(19 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(16 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(17 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(12 [pid 5658] close(17 [pid 5659] close(14 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(14 [pid 5657] close(20 [pid 5662] close(18 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(13 [pid 5658] close(18 [pid 5660] close(15 [pid 5659] close(15 [pid 5657] close(21 [pid 5662] close(19 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(14 [pid 5658] close(19 [pid 5660] close(16 [pid 5659] close(16 [pid 5657] close(22 [pid 5662] close(20 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(15 [pid 5658] close(20 [pid 5660] close(17 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(21 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(17 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(16 [pid 5658] close(21 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] close(23 [pid 5662] close(22 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(18 [pid 5659] close(18 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(17 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(22 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(19 [pid 5657] close(24 [pid 5662] close(23 [pid 5661] close(18 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(19 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(23 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(20 [pid 5657] close(25 [pid 5662] close(24 [pid 5661] close(19 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(20 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(24 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(21 [pid 5657] close(26 [pid 5662] close(25 [pid 5661] close(20 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(21 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(22 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(21 [pid 5658] close(25 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(26 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(22 [pid 5659] close(23 [pid 5657] close(27 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(22 [pid 5658] close(26 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(27 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(23) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(23 [pid 5657] close(28 [pid 5662] close(28 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(27 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] close(29 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(24 [pid 5657] close(29 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(28 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] exit_group(0 [pid 5661] close(24 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(25 [pid 5659] close(24 [pid 5657] exit_group(0 [pid 5662] <... exit_group resumed>) = ? [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(29 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... exit_group resumed>) = ? [pid 5661] close(25 [pid 5659] close(25 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(26 [pid 5659] close(26 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(27 [pid 5659] close(27 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] close(28) = -1 EBADF (Bad file descriptor) [pid 5659] close(28 [pid 5661] close(29) = -1 EBADF (Bad file descriptor) [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] exit_group(0) = ? [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] close(26 [pid 5659] close(29 [pid 5657] +++ exited with 0 +++ [pid 5662] +++ exited with 0 +++ [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] exit_group(0 [pid 5660] close(27 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5658] <... exit_group resumed>) = ? [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] exit_group(0 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5659] <... exit_group resumed>) = ? [pid 5051] <... restart_syscall resumed>) = 0 [pid 5658] +++ exited with 0 +++ [pid 5660] close(28 [pid 5659] +++ exited with 0 +++ [pid 5661] +++ exited with 0 +++ [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5660] close(29 [pid 5051] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5051] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5660] exit_group(0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5050] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5660] <... exit_group resumed>) = ? [pid 5053] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(3, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5051] getdents64(3, [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] newfstatat(3, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(3, "", [pid 5049] <... openat resumed>) = 3 [pid 5052] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(3, "", [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] newfstatat(AT_FDCWD, "./100/binderfs", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] getdents64(3, [pid 5049] getdents64(3, [pid 5053] getdents64(3, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] unlink("./100/binderfs" [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] newfstatat(AT_FDCWD, "./103/binderfs", [pid 5051] <... unlink resumed>) = 0 [pid 5050] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5660] +++ exited with 0 +++ [pid 5053] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] unlink("./103/binderfs" [pid 5050] newfstatat(AT_FDCWD, "./96/binderfs", [pid 5049] newfstatat(AT_FDCWD, "./99/binderfs", [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] <... umount2 resumed>) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5053] newfstatat(AT_FDCWD, "./97/binderfs", [pid 5052] <... unlink resumed>) = 0 [pid 5051] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] unlink("./99/binderfs" [pid 5048] <... restart_syscall resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] unlink("./96/binderfs" [pid 5049] <... unlink resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./100/file0", [pid 5050] <... unlink resumed>) = 0 [pid 5049] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] unlink("./97/binderfs" [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = 0 [pid 5048] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./99/file0", [pid 5048] <... openat resumed>) = 3 [pid 5050] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(3, "", [pid 5053] <... umount2 resumed>) = 0 [pid 5052] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 4 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./96/file0", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(3, [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(4, "", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] newfstatat(AT_FDCWD, "./97/file0", [pid 5052] newfstatat(AT_FDCWD, "./103/file0", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... openat resumed>) = 4 [pid 5048] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(4, "", [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(AT_FDCWD, "./96/binderfs", [pid 5053] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... openat resumed>) = 4 [pid 5049] getdents64(4, [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(4, [pid 5050] newfstatat(4, "", [pid 5048] unlink("./96/binderfs" [pid 5053] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... openat resumed>) = 4 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] <... openat resumed>) = 4 [pid 5051] close(4 [pid 5048] <... unlink resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5051] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5049] getdents64(4, [pid 5048] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] newfstatat(4, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] rmdir("./100/file0" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, [pid 5051] <... rmdir resumed>) = 0 [pid 5049] close(4 [pid 5048] <... umount2 resumed>) = 0 [pid 5053] getdents64(4, [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] getdents64(4, [pid 5048] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] getdents64(4, [pid 5052] getdents64(4, [pid 5050] close(4 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] close(4 [pid 5052] close(4 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] rmdir("./96/file0" [pid 5053] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5053] rmdir("./97/file0" [pid 5052] rmdir("./103/file0" [pid 5051] close(3 [pid 5048] newfstatat(AT_FDCWD, "./96/file0", [pid 5049] <... close resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] rmdir("./99/file0" [pid 5048] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] rmdir("./100" [pid 5050] getdents64(3, [pid 5048] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(3, [pid 5048] <... openat resumed>) = 4 [pid 5050] close(3 [pid 5053] getdents64(3, [pid 5050] <... close resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] getdents64(3, [pid 5050] rmdir("./96" [pid 5053] close(3 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] close(3 [pid 5051] mkdir("./101", 0777 [pid 5049] close(3 [pid 5048] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] rmdir("./97" [pid 5049] <... close resumed>) = 0 [pid 5048] getdents64(4, [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5049] rmdir("./99" [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] mkdir("./97", 0777 [pid 5048] close(4 [pid 5052] rmdir("./103" [pid 5050] <... mkdir resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5053] mkdir("./98", 0777 [pid 5052] <... rmdir resumed>) = 0 [pid 5049] mkdir("./100", 0777 [pid 5048] <... close resumed>) = 0 [pid 5053] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5048] rmdir("./96/file0" [pid 5052] mkdir("./104", 0777 [pid 5051] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] <... rmdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] <... openat resumed>) = 3 [pid 5051] close(3 [pid 5050] close(3 [pid 5051] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... mkdir resumed>) = 0 [pid 5048] getdents64(3, [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5663 attached [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5663] set_robust_list(0x5555566e0760, 24 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 103 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... close resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5048] rmdir("./96" [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] close(3) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5663] <... set_robust_list resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] close(3 [pid 5048] <... rmdir resumed>) = 0 [pid 5052] close(3 [pid 5049] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] mkdir("./97", 0777 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 99 ./strace-static-x86_64: Process 5665 attached [pid 5665] set_robust_list(0x5555566e0760, 24) = 0 [pid 5665] chdir("./97" [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 100 [pid 5665] <... chdir resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5665] setpgid(0, 0) = 0 [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5664 attached [pid 5664] set_robust_list(0x5555566e0760, 24) = 0 [pid 5665] <... openat resumed>) = 3 [pid 5664] chdir("./98") = 0 [pid 5665] write(3, "1000", 4 [pid 5663] chdir("./101" [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5666 attached ./strace-static-x86_64: Process 5667 attached [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5665] <... write resumed>) = 4 [pid 5663] <... chdir resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5666] set_robust_list(0x5555566e0760, 24 [pid 5667] set_robust_list(0x5555566e0760, 24 [pid 5664] <... prctl resumed>) = 0 [pid 5665] close(3 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 106 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 102 [pid 5667] <... set_robust_list resumed>) = 0 [pid 5664] setpgid(0, 0 [pid 5665] <... close resumed>) = 0 [pid 5663] <... prctl resumed>) = 0 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5664] <... setpgid resumed>) = 0 [pid 5665] symlink("/dev/binderfs", "./binderfs" [pid 5666] <... set_robust_list resumed>) = 0 [pid 5667] chdir("./100" [pid 5663] setpgid(0, 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5666] chdir("./104" [pid 5667] <... chdir resumed>) = 0 [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5665] <... symlink resumed>) = 0 [pid 5663] <... setpgid resumed>) = 0 [pid 5048] close(3 [pid 5666] <... chdir resumed>) = 0 [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5664] <... openat resumed>) = 3 [pid 5665] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5665] <... socket resumed>) = 3 [pid 5664] write(3, "1000", 4 [pid 5048] <... close resumed>) = 0 [pid 5667] <... prctl resumed>) = 0 [pid 5664] <... write resumed>) = 4 [pid 5665] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5663] <... openat resumed>) = 3 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5666] <... prctl resumed>) = 0 [pid 5667] setpgid(0, 0 [pid 5664] close(3 [pid 5665] <... socket resumed>) = 4 [pid 5665] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5664] <... close resumed>) = 0 [pid 5665] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5664] symlink("/dev/binderfs", "./binderfs" [pid 5666] setpgid(0, 0 [pid 5667] <... setpgid resumed>) = 0 [pid 5663] write(3, "1000", 4 [pid 5666] <... setpgid resumed>) = 0 [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5663] <... write resumed>) = 4 [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5667] <... openat resumed>) = 3 [pid 5664] <... symlink resumed>) = 0 [pid 5665] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5663] close(3 [pid 5664] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5665] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5663] <... close resumed>) = 0 [pid 5666] <... openat resumed>) = 3 [pid 5667] write(3, "1000", 4 [pid 5664] <... socket resumed>) = 3 [pid 5665] memfd_create("syzkaller", 0 [pid 5663] symlink("/dev/binderfs", "./binderfs" [pid 5666] write(3, "1000", 4 [pid 5667] <... write resumed>) = 4 [pid 5664] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5665] <... memfd_create resumed>) = 5 [pid 5663] <... symlink resumed>) = 0 [pid 5666] <... write resumed>) = 4 [pid 5667] close(3 [pid 5663] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5666] close(3 [pid 5667] <... close resumed>) = 0 [pid 5666] <... close resumed>) = 0 ./strace-static-x86_64: Process 5668 attached [pid 5664] <... socket resumed>) = 4 [pid 5665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5668] set_robust_list(0x5555566e0760, 24 [pid 5664] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5665] <... mmap resumed>) = 0x7f1263f98000 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 99 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5666] symlink("/dev/binderfs", "./binderfs" [pid 5667] symlink("/dev/binderfs", "./binderfs" [pid 5664] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5663] <... socket resumed>) = 3 [pid 5668] chdir("./97" [pid 5664] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5664] memfd_create("syzkaller", 0 [pid 5667] <... symlink resumed>) = 0 [pid 5668] <... chdir resumed>) = 0 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5666] <... symlink resumed>) = 0 [pid 5667] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5663] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5668] <... prctl resumed>) = 0 [pid 5668] setpgid(0, 0 [pid 5663] <... socket resumed>) = 4 [pid 5668] <... setpgid resumed>) = 0 [pid 5667] <... socket resumed>) = 3 [pid 5663] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5666] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5667] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5665] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5663] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5663] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5664] <... memfd_create resumed>) = 5 [pid 5665] mkdir("./file0", 000 [pid 5664] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5665] <... mkdir resumed>) = 0 [pid 5663] memfd_create("syzkaller", 0 [pid 5664] <... mmap resumed>) = 0x7f1263f98000 [pid 5667] <... socket resumed>) = 4 [pid 5664] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5663] <... memfd_create resumed>) = 5 [pid 5666] <... socket resumed>) = 3 [pid 5667] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5664] mkdir("./file0", 000 [pid 5663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5668] <... openat resumed>) = 3 [pid 5666] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5667] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5664] <... mkdir resumed>) = 0 [pid 5668] write(3, "1000", 4 [pid 5664] symlink(NULL, NULL [pid 5665] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5665] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5668] <... write resumed>) = 4 [pid 5666] <... socket resumed>) = 4 [pid 5667] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5664] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5665] <... mount resumed>) = 0 [pid 5663] <... mmap resumed>) = 0x7f1263f98000 [pid 5668] close(3 [pid 5666] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5667] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5664] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5668] <... close resumed>) = 0 [pid 5665] open(NULL, O_RDONLY [pid 5663] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5663] mkdir("./file0", 000 [pid 5666] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5666] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5668] symlink("/dev/binderfs", "./binderfs" [pid 5666] memfd_create("syzkaller", 0 [pid 5668] <... symlink resumed>) = 0 [pid 5665] <... open resumed>) = -1 EFAULT (Bad address) [pid 5663] <... mkdir resumed>) = 0 [pid 5668] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5667] memfd_create("syzkaller", 0 [pid 5666] <... memfd_create resumed>) = 5 [pid 5666] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5668] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5665] close(3 [pid 5668] <... socket resumed>) = 4 [pid 5665] <... close resumed>) = 0 [pid 5668] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5666] <... mmap resumed>) = 0x7f1263f98000 [pid 5667] <... memfd_create resumed>) = 5 [pid 5664] <... mount resumed>) = 0 [pid 5663] symlink(NULL, NULL [pid 5668] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5668] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5668] memfd_create("syzkaller", 0 [pid 5666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5663] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5668] <... memfd_create resumed>) = 5 [pid 5668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5666] mkdir("./file0", 000 [pid 5667] <... mmap resumed>) = 0x7f1263f98000 [pid 5663] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5668] <... mmap resumed>) = 0x7f1263f98000 [pid 5668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5668] mkdir("./file0", 000 [pid 5664] open(NULL, O_RDONLY [pid 5665] close(4 [pid 5668] <... mkdir resumed>) = 0 [pid 5666] <... mkdir resumed>) = 0 [pid 5664] <... open resumed>) = -1 EFAULT (Bad address) [pid 5665] <... close resumed>) = 0 [pid 5664] close(3 [pid 5665] close(5 [pid 5667] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5664] <... close resumed>) = 0 [pid 5665] <... close resumed>) = 0 [pid 5664] close(4 [pid 5665] close(6 [pid 5663] <... mount resumed>) = 0 [pid 5667] mkdir("./file0", 000 [pid 5664] <... close resumed>) = 0 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] close(5 [pid 5665] close(7 [pid 5664] <... close resumed>) = 0 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] close(6 [pid 5665] close(8 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] symlink(NULL, NULL [pid 5664] close(7 [pid 5665] close(9 [pid 5668] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5666] symlink(NULL, NULL [pid 5667] <... mkdir resumed>) = 0 [pid 5664] close(8 [pid 5665] close(10 [pid 5663] open(NULL, O_RDONLY [pid 5668] <... mount resumed>) = 0 [pid 5666] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5667] symlink(NULL, NULL [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... open resumed>) = -1 EFAULT (Bad address) [pid 5666] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5664] close(9 [pid 5665] close(11 [pid 5667] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(3 [pid 5666] <... mount resumed>) = 0 [pid 5667] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5664] close(10 [pid 5665] close(12 [pid 5668] open(NULL, O_RDONLY [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = 0 [pid 5668] <... open resumed>) = -1 EFAULT (Bad address) [pid 5664] close(11 [pid 5665] close(13 [pid 5668] close(3 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = 0 [pid 5666] open(NULL, O_RDONLY [pid 5664] close(12 [pid 5663] close(4 [pid 5668] close(4 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(14 [pid 5666] <... open resumed>) = -1 EFAULT (Bad address) [pid 5668] <... close resumed>) = 0 [pid 5667] <... mount resumed>) = 0 [pid 5666] close(3 [pid 5664] close(13 [pid 5668] close(5 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = 0 [pid 5666] <... close resumed>) = 0 [pid 5667] open(NULL, O_RDONLY [pid 5664] close(14 [pid 5665] close(15 [pid 5663] <... close resumed>) = 0 [pid 5668] close(6 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(5 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(4 [pid 5667] <... open resumed>) = -1 EFAULT (Bad address) [pid 5664] close(15 [pid 5665] close(16 [pid 5668] close(7 [pid 5667] close(3 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = 0 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = 0 [pid 5664] close(16 [pid 5665] close(17 [pid 5668] close(8 [pid 5666] close(5 [pid 5667] <... close resumed>) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(6 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = 0 [pid 5667] close(4 [pid 5664] close(17 [pid 5665] close(18 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(9 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] close(18 [pid 5665] close(19 [pid 5668] close(10 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] close(19 [pid 5668] close(11) = -1 EBADF (Bad file descriptor) [pid 5666] close(6 [pid 5667] <... close resumed>) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(7 [pid 5668] close(12 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(5 [pid 5664] close(20 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(20 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(7 [pid 5667] <... close resumed>) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(8 [pid 5668] close(13 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(6 [pid 5664] close(21 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(8 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(21 [pid 5663] close(9 [pid 5668] close(14 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(7 [pid 5664] close(22 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(9 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(22 [pid 5663] close(10 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(8 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(15 [pid 5666] close(10 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] close(23 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(11 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(23 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(16 [pid 5666] close(11 [pid 5667] close(9 [pid 5664] close(24 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(12 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(24 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(17 [pid 5666] close(12 [pid 5667] close(10 [pid 5664] close(25 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(13 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(25 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(18 [pid 5666] close(13 [pid 5667] close(11 [pid 5664] close(26 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(14 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(26 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(19 [pid 5666] close(14 [pid 5667] close(12 [pid 5664] close(27 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(15 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(27 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(20 [pid 5666] close(15 [pid 5667] close(13 [pid 5664] close(28 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(16 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(28 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(21 [pid 5666] close(16 [pid 5667] close(14 [pid 5664] close(29 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(17 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(29 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(15) = -1 EBADF (Bad file descriptor) [pid 5667] close(16) = -1 EBADF (Bad file descriptor) [pid 5667] close(17) = -1 EBADF (Bad file descriptor) [pid 5667] close(18) = -1 EBADF (Bad file descriptor) [pid 5667] close(19 [pid 5663] close(18 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(20 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(19 [pid 5667] close(21 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(17 [pid 5663] close(20 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(18 [pid 5667] close(22 [pid 5663] close(21 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(19 [pid 5667] close(23 [pid 5663] close(22 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(20 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(24 [pid 5663] close(23 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(21 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(25 [pid 5663] close(24 [pid 5666] close(22 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(26 [pid 5663] close(25 [pid 5666] close(23 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(27 [pid 5663] close(26 [pid 5666] close(24 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] close(22 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(28 [pid 5664] exit_group(0 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(27 [pid 5666] close(25 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] close(29 [pid 5663] close(28 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(26 [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... exit_group resumed>) = ? [pid 5665] exit_group(0 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] exit_group(0 [pid 5663] close(29 [pid 5666] close(27 [pid 5667] <... exit_group resumed>) = ? [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] exit_group(0 [pid 5668] close(23 [pid 5666] close(28 [pid 5667] +++ exited with 0 +++ [pid 5664] +++ exited with 0 +++ [pid 5665] <... exit_group resumed>) = ? [pid 5663] <... exit_group resumed>) = ? [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] +++ exited with 0 +++ [pid 5666] close(29 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5049] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5666] exit_group(0 [pid 5665] +++ exited with 0 +++ [pid 5051] <... restart_syscall resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5668] close(24 [pid 5666] <... exit_group resumed>) = ? [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] +++ exited with 0 +++ [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5049] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5668] close(25 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... restart_syscall resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... restart_syscall resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(3, "", [pid 5668] close(26 [pid 5051] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... openat resumed>) = 3 [pid 5050] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5668] close(27 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(3, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] getdents64(3, [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5668] close(28) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(3, [pid 5050] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5668] close(29 [pid 5053] newfstatat(3, "", [pid 5052] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... openat resumed>) = 3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5668] exit_group(0 [pid 5053] getdents64(3, [pid 5052] newfstatat(3, "", [pid 5051] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(3, "", [pid 5049] newfstatat(AT_FDCWD, "./100/binderfs", [pid 5668] <... exit_group resumed>) = ? [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(3, [pid 5051] newfstatat(AT_FDCWD, "./101/binderfs", [pid 5050] getdents64(3, [pid 5049] unlink("./100/binderfs" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5668] +++ exited with 0 +++ [pid 5053] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... unlink resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./98/binderfs", [pid 5052] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] unlink("./101/binderfs" [pid 5050] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5053] unlink("./98/binderfs" [pid 5048] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(AT_FDCWD, "./104/binderfs", [pid 5051] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./97/binderfs", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] unlink("./104/binderfs" [pid 5051] <... umount2 resumed>) = 0 [pid 5050] unlink("./97/binderfs" [pid 5049] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 3 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] <... unlink resumed>) = 0 [pid 5051] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(3, "", [pid 5052] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] newfstatat(AT_FDCWD, "./100/file0", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(AT_FDCWD, "./101/file0", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] getdents64(3, [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] newfstatat(AT_FDCWD, "./98/file0", [pid 5050] <... umount2 resumed>) = 0 [pid 5051] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] newfstatat(AT_FDCWD, "./97/binderfs", [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 4 [pid 5050] newfstatat(AT_FDCWD, "./97/file0", [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5048] unlink("./97/binderfs" [pid 5053] <... openat resumed>) = 4 [pid 5052] newfstatat(AT_FDCWD, "./104/file0", [pid 5051] newfstatat(4, "", [pid 5050] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] newfstatat(4, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] newfstatat(4, "", [pid 5048] <... unlink resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(4, [pid 5050] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(4, [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... openat resumed>) = 4 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] close(4 [pid 5052] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(4, [pid 5050] newfstatat(4, "", [pid 5049] getdents64(4, [pid 5048] <... umount2 resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] rmdir("./98/file0" [pid 5052] <... openat resumed>) = 4 [pid 5051] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(4, "", [pid 5051] <... close resumed>) = 0 [pid 5049] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] rmdir("./101/file0" [pid 5049] close(4 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(4, [pid 5053] getdents64(3, [pid 5052] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5049] rmdir("./100/file0" [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./97/file0", [pid 5053] close(3 [pid 5052] getdents64(4, [pid 5051] getdents64(3, [pid 5050] getdents64(4, [pid 5053] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] rmdir("./98" [pid 5052] close(4 [pid 5051] close(3 [pid 5050] close(4 [pid 5048] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] close(3 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] rmdir("./100" [pid 5053] mkdir("./99", 0777 [pid 5052] rmdir("./104/file0" [pid 5051] rmdir("./101" [pid 5050] <... close resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] rmdir("./97/file0" [pid 5049] mkdir("./101", 0777 [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] <... rmdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5053] <... mkdir resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] mkdir("./102", 0777 [pid 5050] getdents64(3, [pid 5048] <... openat resumed>) = 4 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5048] newfstatat(4, "", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5050] close(3 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] getdents64(4, [pid 5052] close(3 [pid 5050] rmdir("./97" [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... mkdir resumed>) = 0 [pid 5049] close(3 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5053] close(3 [pid 5052] rmdir("./104" [pid 5048] getdents64(4, [pid 5053] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... openat resumed>) = 3 [pid 5052] mkdir("./105", 0777 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] mkdir("./98", 0777 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... mkdir resumed>) = 0 [pid 5048] close(4 [pid 5051] close(3 [pid 5048] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5048] rmdir("./97/file0" [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... rmdir resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] getdents64(3, [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 101 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 104 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5050] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5048] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] close(3 [pid 5048] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... close resumed>) = 0 [pid 5048] rmdir("./97"./strace-static-x86_64: Process 5671 attached ./strace-static-x86_64: Process 5669 attached [pid 5052] close(3 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... rmdir resumed>) = 0 [pid 5671] set_robust_list(0x5555566e0760, 24 [pid 5669] set_robust_list(0x5555566e0760, 24 [pid 5052] <... close resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 103 [pid 5048] mkdir("./98", 0777 [pid 5671] <... set_robust_list resumed>) = 0 [pid 5669] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5670 attached [pid 5671] chdir("./101" [pid 5669] chdir("./99" [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... mkdir resumed>) = 0 [pid 5669] <... chdir resumed>) = 0 [pid 5671] <... chdir resumed>) = 0 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5669] <... prctl resumed>) = 0 [pid 5671] <... prctl resumed>) = 0 [pid 5671] setpgid(0, 0 [pid 5670] set_robust_list(0x5555566e0760, 24 [pid 5669] setpgid(0, 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5671] <... setpgid resumed>) = 0 [pid 5670] <... set_robust_list resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5670] chdir("./102" [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5670] <... chdir resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 100 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] close(3 [pid 5670] <... prctl resumed>) = 0 [pid 5048] <... close resumed>) = 0 ./strace-static-x86_64: Process 5672 attached [pid 5670] setpgid(0, 0) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5672] set_robust_list(0x5555566e0760, 24 [pid 5671] <... openat resumed>) = 3 [pid 5670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5669] <... setpgid resumed>) = 0 [pid 5672] <... set_robust_list resumed>) = 0 [pid 5671] write(3, "1000", 4 [pid 5670] <... openat resumed>) = 3 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 107 ./strace-static-x86_64: Process 5673 attached [pid 5672] chdir("./98" [pid 5671] <... write resumed>) = 4 [pid 5670] write(3, "1000", 4 [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5672] <... chdir resumed>) = 0 [pid 5671] close(3 [pid 5670] <... write resumed>) = 4 [pid 5673] set_robust_list(0x5555566e0760, 24 [pid 5671] <... close resumed>) = 0 [pid 5670] close(3 [pid 5671] symlink("/dev/binderfs", "./binderfs" [pid 5670] <... close resumed>) = 0 [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] symlink("/dev/binderfs", "./binderfs" [pid 5669] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5674 attached [pid 5672] <... prctl resumed>) = 0 [pid 5671] <... symlink resumed>) = 0 [pid 5673] <... set_robust_list resumed>) = 0 [pid 5670] <... symlink resumed>) = 0 [pid 5669] write(3, "1000", 4 [pid 5673] chdir("./105" [pid 5672] setpgid(0, 0 [pid 5671] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5670] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 100 [pid 5674] set_robust_list(0x5555566e0760, 24 [pid 5673] <... chdir resumed>) = 0 [pid 5670] <... socket resumed>) = 3 [pid 5669] <... write resumed>) = 4 [pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5673] <... prctl resumed>) = 0 [pid 5672] <... setpgid resumed>) = 0 [pid 5670] <... socket resumed>) = 4 [pid 5673] setpgid(0, 0 [pid 5671] <... socket resumed>) = 3 [pid 5670] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5673] <... setpgid resumed>) = 0 [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5670] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5674] <... set_robust_list resumed>) = 0 [pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5671] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5670] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5669] close(3 [pid 5674] chdir("./98" [pid 5673] <... openat resumed>) = 3 [pid 5671] <... socket resumed>) = 4 [pid 5670] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5669] <... close resumed>) = 0 [pid 5674] <... chdir resumed>) = 0 [pid 5671] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5670] memfd_create("syzkaller", 0 [pid 5673] write(3, "1000", 4 [pid 5670] <... memfd_create resumed>) = 5 [pid 5673] <... write resumed>) = 4 [pid 5673] close(3 [pid 5670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5673] <... close resumed>) = 0 [pid 5670] <... mmap resumed>) = 0x7f1263f98000 [pid 5673] symlink("/dev/binderfs", "./binderfs" [pid 5674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5673] <... symlink resumed>) = 0 [pid 5670] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5671] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5669] symlink("/dev/binderfs", "./binderfs" [pid 5672] <... openat resumed>) = 3 [pid 5674] <... prctl resumed>) = 0 [pid 5673] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5671] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5670] mkdir("./file0", 000 [pid 5674] setpgid(0, 0 [pid 5673] <... socket resumed>) = 3 [pid 5672] write(3, "1000", 4 [pid 5671] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5670] <... mkdir resumed>) = 0 [pid 5669] <... symlink resumed>) = 0 [pid 5673] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5672] <... write resumed>) = 4 [pid 5671] memfd_create("syzkaller", 0 [pid 5669] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5674] <... setpgid resumed>) = 0 [pid 5672] close(3 [pid 5669] <... socket resumed>) = 3 [pid 5673] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5670] symlink(NULL, NULL [pid 5674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5673] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5672] <... close resumed>) = 0 [pid 5670] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5669] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5673] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5670] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5674] <... openat resumed>) = 3 [pid 5672] symlink("/dev/binderfs", "./binderfs" [pid 5671] <... memfd_create resumed>) = 5 [pid 5669] <... socket resumed>) = 4 [pid 5673] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5672] <... symlink resumed>) = 0 [pid 5671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5670] <... mount resumed>) = 0 [pid 5669] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5673] memfd_create("syzkaller", 0 [pid 5672] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5671] <... mmap resumed>) = 0x7f1263f98000 [pid 5669] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5673] <... memfd_create resumed>) = 5 [pid 5672] <... socket resumed>) = 3 [pid 5670] open(NULL, O_RDONLY [pid 5669] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5671] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5671] mkdir("./file0", 000 [pid 5674] write(3, "1000", 4 [pid 5672] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5669] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5674] <... write resumed>) = 4 [pid 5673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5672] <... socket resumed>) = 4 [pid 5671] <... mkdir resumed>) = 0 [pid 5669] memfd_create("syzkaller", 0 [pid 5674] close(3 [pid 5673] <... mmap resumed>) = 0x7f1263f98000 [pid 5672] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5669] <... memfd_create resumed>) = 5 [pid 5674] <... close resumed>) = 0 [pid 5672] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5670] <... open resumed>) = -1 EFAULT (Bad address) [pid 5669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5674] symlink("/dev/binderfs", "./binderfs" [pid 5672] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5669] <... mmap resumed>) = 0x7f1263f98000 [pid 5674] <... symlink resumed>) = 0 [pid 5672] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5671] symlink(NULL, NULL [pid 5670] close(3 [pid 5669] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5674] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5672] memfd_create("syzkaller", 0 [pid 5669] mkdir("./file0", 000 [pid 5673] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5674] <... socket resumed>) = 3 [pid 5672] <... memfd_create resumed>) = 5 [pid 5670] <... close resumed>) = 0 [pid 5669] <... mkdir resumed>) = 0 [pid 5674] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5673] mkdir("./file0", 000 [pid 5672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5671] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5669] symlink(NULL, NULL [pid 5674] <... socket resumed>) = 4 [pid 5670] close(4 [pid 5674] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5672] <... mmap resumed>) = 0x7f1263f98000 [pid 5674] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5672] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5674] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5673] <... mkdir resumed>) = 0 [pid 5672] mkdir("./file0", 000 [pid 5674] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5673] symlink(NULL, NULL [pid 5672] <... mkdir resumed>) = 0 [pid 5671] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5670] <... close resumed>) = 0 [pid 5674] memfd_create("syzkaller", 0 [pid 5669] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5672] symlink(NULL, NULL [pid 5670] close(5 [pid 5669] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5674] <... memfd_create resumed>) = 5 [pid 5672] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5673] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5672] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5671] <... mount resumed>) = 0 [pid 5670] <... close resumed>) = 0 [pid 5669] <... mount resumed>) = 0 [pid 5674] <... mmap resumed>) = 0x7f1263f98000 [pid 5670] close(6 [pid 5673] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5674] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5672] <... mount resumed>) = 0 [pid 5671] open(NULL, O_RDONLY [pid 5669] open(NULL, O_RDONLY [pid 5674] mkdir("./file0", 000 [pid 5669] <... open resumed>) = -1 EFAULT (Bad address) [pid 5674] <... mkdir resumed>) = 0 [pid 5673] <... mount resumed>) = 0 [pid 5671] <... open resumed>) = -1 EFAULT (Bad address) [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(3 [pid 5673] open(NULL, O_RDONLY [pid 5672] open(NULL, O_RDONLY [pid 5671] close(3 [pid 5670] close(7 [pid 5669] <... close resumed>) = 0 [pid 5674] symlink(NULL, NULL [pid 5673] <... open resumed>) = -1 EFAULT (Bad address) [pid 5672] <... open resumed>) = -1 EFAULT (Bad address) [pid 5671] <... close resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(4 [pid 5674] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5673] close(3 [pid 5672] close(3 [pid 5671] close(4 [pid 5670] close(8 [pid 5669] <... close resumed>) = 0 [pid 5674] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5673] <... close resumed>) = 0 [pid 5672] <... close resumed>) = 0 [pid 5671] <... close resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(5 [pid 5670] close(9 [pid 5672] close(4 [pid 5671] close(5 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... mount resumed>) = 0 [pid 5673] close(4 [pid 5672] <... close resumed>) = 0 [pid 5671] <... close resumed>) = 0 [pid 5670] close(10 [pid 5669] <... close resumed>) = 0 [pid 5674] open(NULL, O_RDONLY [pid 5673] <... close resumed>) = 0 [pid 5672] close(5 [pid 5671] close(6 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(6 [pid 5674] <... open resumed>) = -1 EFAULT (Bad address) [pid 5673] close(5 [pid 5672] <... close resumed>) = 0 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(11 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(3 [pid 5673] <... close resumed>) = 0 [pid 5672] close(6 [pid 5671] close(7 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(7 [pid 5674] <... close resumed>) = 0 [pid 5673] close(6 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(12 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(4 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(7 [pid 5671] close(8 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(8 [pid 5674] <... close resumed>) = 0 [pid 5673] close(7 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(13 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(5 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(8 [pid 5671] close(9 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(9 [pid 5674] <... close resumed>) = 0 [pid 5673] close(8 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(14 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(6 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(9 [pid 5671] close(10 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(10 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(9 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(15 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(7 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(10 [pid 5671] close(11 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(11 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(10 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(16 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(8 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(11 [pid 5671] close(12 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(12 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(11 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(17 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(9 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(12 [pid 5671] close(13 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(13 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(12 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(18 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(10 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(13 [pid 5671] close(14 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(14 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(13 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(19 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(11 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(14 [pid 5671] close(15 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(15 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(14 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(20 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(12 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(15 [pid 5671] close(16 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(16 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(15 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(21 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(13 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(16 [pid 5671] close(17 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(17 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(16 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(22 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(14 [pid 5669] close(18 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(17 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(15 [pid 5673] close(17 [pid 5671] close(18 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(23 [pid 5673] close(18 [pid 5672] close(18 [pid 5671] close(19 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(19 [pid 5674] close(16 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(20) = -1 EBADF (Bad file descriptor) [pid 5674] close(17 [pid 5673] close(19 [pid 5672] close(19 [pid 5671] close(20 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(24 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(20 [pid 5671] close(21 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(21 [pid 5674] close(18 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(25 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(21 [pid 5671] close(22 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(22 [pid 5674] close(19 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(26 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(22 [pid 5671] close(23 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(23 [pid 5674] close(20 [pid 5673] close(20 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(27 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(24 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(21 [pid 5673] close(21 [pid 5672] close(23 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(28 [pid 5669] close(24 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(25 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(22 [pid 5673] close(22 [pid 5672] close(24 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] close(29 [pid 5669] close(25 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(26 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(23 [pid 5673] close(23 [pid 5672] close(25 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] exit_group(0 [pid 5669] close(26 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(27 [pid 5670] <... exit_group resumed>) = ? [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(24 [pid 5673] close(24 [pid 5672] close(26 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(27 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(28 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(25 [pid 5673] close(25 [pid 5672] close(27 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(28 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(29 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(26 [pid 5673] close(26 [pid 5672] close(28 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] +++ exited with 0 +++ [pid 5669] close(29 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5674] close(27 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(29 [pid 5671] exit_group(0 [pid 5669] exit_group(0 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(27 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... exit_group resumed>) = ? [pid 5669] <... exit_group resumed>) = ? [pid 5674] close(28 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(29) = -1 EBADF (Bad file descriptor) [pid 5674] exit_group(0 [pid 5673] close(28 [pid 5674] <... exit_group resumed>) = ? [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] +++ exited with 0 +++ [pid 5672] exit_group(0 [pid 5671] +++ exited with 0 +++ [pid 5673] close(29) = -1 EBADF (Bad file descriptor) [pid 5672] <... exit_group resumed>) = ? [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5673] exit_group(0 [pid 5049] <... openat resumed>) = 3 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5673] <... exit_group resumed>) = ? [pid 5051] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(AT_FDCWD, "./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] unlink("./101/binderfs") = 0 [pid 5049] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5672] +++ exited with 0 +++ [pid 5673] +++ exited with 0 +++ [pid 5669] +++ exited with 0 +++ [pid 5051] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5049] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=107, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] <... openat resumed>) = 3 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(3, "", [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] newfstatat(3, "", [pid 5049] newfstatat(AT_FDCWD, "./101/file0", [pid 5052] <... restart_syscall resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] getdents64(3, [pid 5050] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(3, [pid 5049] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... openat resumed>) = 4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... openat resumed>) = 3 [pid 5049] newfstatat(4, "", [pid 5048] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... openat resumed>) = 3 [pid 5051] newfstatat(AT_FDCWD, "./102/binderfs", [pid 5050] newfstatat(3, "", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(3, "", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(4, [pid 5048] newfstatat(AT_FDCWD, "./98/binderfs", [pid 5053] <... openat resumed>) = 3 [pid 5052] getdents64(3, [pid 5051] unlink("./102/binderfs" [pid 5050] getdents64(3, [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] getdents64(4, [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] newfstatat(3, "", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] close(4 [pid 5048] unlink("./98/binderfs" [pid 5051] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... close resumed>) = 0 [pid 5053] getdents64(3, [pid 5052] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] rmdir("./101/file0" [pid 5048] <... unlink resumed>) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] newfstatat(AT_FDCWD, "./105/binderfs", [pid 5050] newfstatat(AT_FDCWD, "./98/binderfs", [pid 5049] <... rmdir resumed>) = 0 [pid 5048] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] getdents64(3, [pid 5053] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] unlink("./98/binderfs" [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./99/binderfs", [pid 5052] unlink("./105/binderfs" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... unlink resumed>) = 0 [pid 5049] close(3 [pid 5048] <... umount2 resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... close resumed>) = 0 [pid 5049] rmdir("./101" [pid 5053] unlink("./99/binderfs" [pid 5052] <... unlink resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./102/file0", [pid 5050] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... unlink resumed>) = 0 [pid 5052] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = 0 [pid 5048] newfstatat(AT_FDCWD, "./98/file0", [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] mkdir("./102", 0777 [pid 5048] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5052] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] newfstatat(AT_FDCWD, "./98/file0", [pid 5048] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./99/file0", [pid 5048] <... openat resumed>) = 4 [pid 5052] newfstatat(AT_FDCWD, "./105/file0", [pid 5051] newfstatat(4, "", [pid 5050] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(4, "", [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5053] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] getdents64(4, [pid 5050] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... openat resumed>) = 3 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] <... openat resumed>) = 4 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] getdents64(4, [pid 5052] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... openat resumed>) = 4 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] newfstatat(4, "", [pid 5052] <... openat resumed>) = 4 [pid 5049] close(3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(4, "", [pid 5051] getdents64(4, [pid 5050] newfstatat(4, "", [pid 5049] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] getdents64(4, [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] close(4 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] getdents64(4, [pid 5053] getdents64(4, [pid 5052] getdents64(4, [pid 5051] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] rmdir("./102/file0" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] close(4 [pid 5053] close(4 [pid 5052] getdents64(4, [pid 5051] <... rmdir resumed>) = 0 [pid 5050] getdents64(4, [pid 5048] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] rmdir("./99/file0" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(4) = 0 [pid 5050] close(4 [pid 5053] <... rmdir resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] rmdir("./98/file0" [pid 5052] rmdir("./105/file0" [pid 5050] rmdir("./98/file0" [pid 5048] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5675 attached [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5051] getdents64(3, 0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] getdents64(3, [pid 5051] close(3 [pid 5675] set_robust_list(0x5555566e0760, 24 [pid 5051] <... close resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 104 [pid 5051] rmdir("./102" [pid 5675] <... set_robust_list resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] getdents64(3, [pid 5050] getdents64(3, [pid 5048] getdents64(3, [pid 5675] chdir("./102" [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] close(3 [pid 5052] close(3 [pid 5050] close(3 [pid 5048] close(3 [pid 5675] <... chdir resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] mkdir("./103", 0777 [pid 5050] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] rmdir("./99" [pid 5052] rmdir("./105" [pid 5051] <... mkdir resumed>) = 0 [pid 5050] rmdir("./98" [pid 5048] rmdir("./98" [pid 5675] <... prctl resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5675] setpgid(0, 0) = 0 [pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] <... rmdir resumed>) = 0 [pid 5675] <... openat resumed>) = 3 [pid 5050] <... rmdir resumed>) = 0 [pid 5053] mkdir("./100", 0777) = 0 [pid 5050] mkdir("./99", 0777 [pid 5052] mkdir("./106", 0777 [pid 5675] write(3, "1000", 4) = 4 [pid 5048] mkdir("./99", 0777 [pid 5675] close(3) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5675] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... mkdir resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5675] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] <... openat resumed>) = 3 [pid 5051] close(3 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] <... close resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] <... openat resumed>) = 3 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5675] <... socket resumed>) = 3 [pid 5053] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5050] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 3 [pid 5053] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5675] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5052] close(3 [pid 5675] <... socket resumed>) = 4 [pid 5052] <... close resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5675] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] close(3 [pid 5675] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] <... close resumed>) = 0 [pid 5675] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] close(3 [pid 5675] memfd_create("syzkaller", 0 [pid 5050] <... close resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 105 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 102 ./strace-static-x86_64: Process 5679 attached [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 108 [pid 5679] set_robust_list(0x5555566e0760, 24 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 101 ./strace-static-x86_64: Process 5678 attached [pid 5679] <... set_robust_list resumed>) = 0 [pid 5679] chdir("./100"./strace-static-x86_64: Process 5680 attached ./strace-static-x86_64: Process 5677 attached ./strace-static-x86_64: Process 5676 attached [pid 5678] set_robust_list(0x5555566e0760, 24 [pid 5679] <... chdir resumed>) = 0 [pid 5675] <... memfd_create resumed>) = 5 [pid 5680] set_robust_list(0x5555566e0760, 24 [pid 5678] <... set_robust_list resumed>) = 0 [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5678] chdir("./99" [pid 5679] <... prctl resumed>) = 0 [pid 5680] <... set_robust_list resumed>) = 0 [pid 5680] chdir("./99" [pid 5679] setpgid(0, 0 [pid 5678] <... chdir resumed>) = 0 [pid 5678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5679] <... setpgid resumed>) = 0 [pid 5680] <... chdir resumed>) = 0 [pid 5678] <... prctl resumed>) = 0 [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5678] setpgid(0, 0 [pid 5680] setpgid(0, 0 [pid 5678] <... setpgid resumed>) = 0 [pid 5679] <... openat resumed>) = 3 [pid 5680] <... setpgid resumed>) = 0 [pid 5678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5679] write(3, "1000", 4 [pid 5680] <... openat resumed>) = 3 [pid 5678] <... openat resumed>) = 3 [pid 5679] <... write resumed>) = 4 [pid 5679] close(3) = 0 [pid 5679] symlink("/dev/binderfs", "./binderfs" [pid 5676] set_robust_list(0x5555566e0760, 24 [pid 5675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 101 [pid 5680] write(3, "1000", 4 [pid 5678] write(3, "1000", 4 [pid 5677] set_robust_list(0x5555566e0760, 24 [pid 5679] <... symlink resumed>) = 0 [pid 5680] <... write resumed>) = 4 [pid 5678] <... write resumed>) = 4 [pid 5675] <... mmap resumed>) = 0x7f1263f98000 [pid 5677] <... set_robust_list resumed>) = 0 [pid 5680] close(3 [pid 5678] close(3 [pid 5677] chdir("./106" [pid 5676] <... set_robust_list resumed>) = 0 [pid 5675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5677] <... chdir resumed>) = 0 [pid 5680] <... close resumed>) = 0 [pid 5679] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5675] mkdir("./file0", 000 [pid 5680] symlink("/dev/binderfs", "./binderfs" [pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5676] chdir("./103" [pid 5677] <... prctl resumed>) = 0 [pid 5679] <... socket resumed>) = 3 [pid 5676] <... chdir resumed>) = 0 [pid 5680] <... symlink resumed>) = 0 [pid 5677] setpgid(0, 0 [pid 5679] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5676] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5680] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5677] <... setpgid resumed>) = 0 [pid 5679] <... socket resumed>) = 4 [pid 5676] <... prctl resumed>) = 0 [pid 5675] <... mkdir resumed>) = 0 [pid 5680] <... socket resumed>) = 3 [pid 5678] <... close resumed>) = 0 [pid 5679] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5676] setpgid(0, 0 [pid 5675] symlink(NULL, NULL [pid 5680] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5678] symlink("/dev/binderfs", "./binderfs" [pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5679] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5676] <... setpgid resumed>) = 0 [pid 5675] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5680] <... socket resumed>) = 4 [pid 5678] <... symlink resumed>) = 0 [pid 5679] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5675] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5679] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5680] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5678] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5679] memfd_create("syzkaller", 0 [pid 5675] <... mount resumed>) = 0 [pid 5680] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5678] <... socket resumed>) = 3 [pid 5676] <... openat resumed>) = 3 [pid 5680] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5678] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5679] <... memfd_create resumed>) = 5 [pid 5676] write(3, "1000", 4 [pid 5675] open(NULL, O_RDONLY [pid 5680] memfd_create("syzkaller", 0 [pid 5678] <... socket resumed>) = 4 [pid 5677] <... openat resumed>) = 3 [pid 5679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5675] <... open resumed>) = -1 EFAULT (Bad address) [pid 5677] write(3, "1000", 4 [pid 5675] close(3 [pid 5680] <... memfd_create resumed>) = 5 [pid 5678] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5677] <... write resumed>) = 4 [pid 5679] <... mmap resumed>) = 0x7f1263f98000 [pid 5676] <... write resumed>) = 4 [pid 5675] <... close resumed>) = 0 [pid 5680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5678] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5677] close(3 [pid 5679] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5676] close(3 [pid 5675] close(4 [pid 5680] <... mmap resumed>) = 0x7f1263f98000 [pid 5678] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5679] mkdir("./file0", 000 [pid 5678] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5680] mkdir("./file0", 000 [pid 5675] <... close resumed>) = 0 [pid 5678] memfd_create("syzkaller", 0 [pid 5677] <... close resumed>) = 0 [pid 5679] <... mkdir resumed>) = 0 [pid 5676] <... close resumed>) = 0 [pid 5678] <... memfd_create resumed>) = 5 [pid 5677] symlink("/dev/binderfs", "./binderfs" [pid 5676] symlink("/dev/binderfs", "./binderfs" [pid 5675] close(5 [pid 5678] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5679] symlink(NULL, NULL [pid 5680] <... mkdir resumed>) = 0 [pid 5678] <... mmap resumed>) = 0x7f1263f98000 [pid 5679] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5676] <... symlink resumed>) = 0 [pid 5677] <... symlink resumed>) = 0 [pid 5675] <... close resumed>) = 0 [pid 5677] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5676] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5675] close(6 [pid 5680] symlink(NULL, NULL [pid 5678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5679] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5680] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5678] mkdir("./file0", 000 [pid 5677] <... socket resumed>) = 3 [pid 5679] <... mount resumed>) = 0 [pid 5676] <... socket resumed>) = 3 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5678] <... mkdir resumed>) = 0 [pid 5677] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5676] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5675] close(7 [pid 5679] open(NULL, O_RDONLY [pid 5676] <... socket resumed>) = 4 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... mount resumed>) = 0 [pid 5679] <... open resumed>) = -1 EFAULT (Bad address) [pid 5678] symlink(NULL, NULL [pid 5679] close(3 [pid 5678] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5677] <... socket resumed>) = 4 [pid 5679] <... close resumed>) = 0 [pid 5676] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5675] close(8 [pid 5680] open(NULL, O_RDONLY [pid 5678] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5677] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5679] close(4 [pid 5676] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... open resumed>) = -1 EFAULT (Bad address) [pid 5678] <... mount resumed>) = 0 [pid 5679] <... close resumed>) = 0 [pid 5676] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5675] close(9 [pid 5680] close(3 [pid 5676] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = 0 [pid 5679] close(5 [pid 5676] memfd_create("syzkaller", 0 [pid 5675] close(10 [pid 5677] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5680] close(4 [pid 5678] open(NULL, O_RDONLY [pid 5679] <... close resumed>) = 0 [pid 5676] <... memfd_create resumed>) = 5 [pid 5680] <... close resumed>) = 0 [pid 5678] <... open resumed>) = -1 EFAULT (Bad address) [pid 5677] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5679] close(6 [pid 5676] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(5 [pid 5678] close(3 [pid 5677] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... mmap resumed>) = 0x7f1263f98000 [pid 5675] close(11 [pid 5680] <... close resumed>) = 0 [pid 5680] close(6) = -1 EBADF (Bad file descriptor) [pid 5677] memfd_create("syzkaller", 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(7 [pid 5678] <... close resumed>) = 0 [pid 5679] close(7 [pid 5676] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5675] close(12 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] mkdir("./file0", 000 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(8 [pid 5678] close(4 [pid 5677] <... memfd_create resumed>) = 5 [pid 5679] close(8 [pid 5675] close(13 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = 0 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(9 [pid 5678] close(5 [pid 5679] close(9 [pid 5675] close(14 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = 0 [pid 5677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... mkdir resumed>) = 0 [pid 5680] close(10 [pid 5678] close(6 [pid 5679] close(10 [pid 5675] close(15 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... mmap resumed>) = 0x7f1263f98000 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] symlink(NULL, NULL [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(11 [pid 5678] close(7 [pid 5679] close(11 [pid 5675] close(16 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(12 [pid 5678] close(8 [pid 5679] close(12 [pid 5675] close(17 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(13 [pid 5678] close(9 [pid 5677] mkdir("./file0", 000 [pid 5679] close(13 [pid 5676] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5675] close(18 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(14 [pid 5678] close(10 [pid 5679] close(14 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... mkdir resumed>) = 0 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(15 [pid 5678] close(11 [pid 5679] close(15 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] close(19 [pid 5680] close(16 [pid 5678] close(12 [pid 5679] close(16 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... mount resumed>) = 0 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(17 [pid 5678] close(13 [pid 5679] close(17 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] symlink(NULL, NULL [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] close(20 [pid 5676] open(NULL, O_RDONLY [pid 5680] close(18 [pid 5678] close(14 [pid 5679] close(18 [pid 5676] <... open resumed>) = -1 EFAULT (Bad address) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(3 [pid 5675] close(21 [pid 5680] close(19 [pid 5678] close(15 [pid 5679] close(19 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(20 [pid 5678] close(16 [pid 5677] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5679] close(20 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = 0 [pid 5675] close(22 [pid 5680] close(21 [pid 5678] close(17 [pid 5679] close(21 [pid 5676] close(4 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] close(23 [pid 5680] close(22 [pid 5678] close(18 [pid 5679] close(22 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... mount resumed>) = 0 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = 0 [pid 5675] close(24 [pid 5680] close(23 [pid 5678] close(19 [pid 5677] open(NULL, O_RDONLY [pid 5679] close(23 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... open resumed>) = -1 EFAULT (Bad address) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(5 [pid 5675] close(25 [pid 5680] close(24 [pid 5678] close(20 [pid 5677] close(3 [pid 5679] close(24 [pid 5676] <... close resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(6 [pid 5675] close(26 [pid 5680] close(25 [pid 5678] close(21 [pid 5679] close(25 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... close resumed>) = 0 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(4 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(7 [pid 5675] close(27 [pid 5680] close(26 [pid 5678] close(22 [pid 5679] close(26 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(27 [pid 5678] close(23 [pid 5677] <... close resumed>) = 0 [pid 5676] close(8 [pid 5675] close(28 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] close(27 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(28 [pid 5678] close(24 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] close(29 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(5 [pid 5679] close(28 [pid 5676] close(9 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(29 [pid 5678] close(25 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] close(29 [pid 5678] close(26 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] exit_group(0 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... close resumed>) = 0 [pid 5679] exit_group(0 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] exit_group(0 [pid 5680] <... exit_group resumed>) = ? [pid 5678] close(27 [pid 5677] close(6 [pid 5676] close(10 [pid 5675] <... exit_group resumed>) = ? [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... exit_group resumed>) = ? [pid 5678] close(28) = -1 EBADF (Bad file descriptor) [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(11 [pid 5675] +++ exited with 0 +++ [pid 5678] close(29 [pid 5677] close(7 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] exit_group(0 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(12 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5677] close(8 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5676] close(13 [pid 5678] <... exit_group resumed>) = ? [pid 5678] +++ exited with 0 +++ [pid 5677] close(9 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... restart_syscall resumed>) = 0 [pid 5680] +++ exited with 0 +++ [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(14 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5677] close(10 [pid 5679] +++ exited with 0 +++ [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(15 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5677] close(11 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(16 [pid 5053] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] close(12 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(17 [pid 5053] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 3 [pid 5677] close(13 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5050] newfstatat(3, "", [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] newfstatat(3, "", [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(18 [pid 5053] newfstatat(3, "", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5677] close(14 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(3, [pid 5048] getdents64(3, [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(19 [pid 5053] getdents64(3, [pid 5049] <... openat resumed>) = 3 [pid 5677] close(15 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(3, "", [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(20 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5677] close(16 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(17 [pid 5676] close(21 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5677] close(18 [pid 5676] close(22 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(3, [pid 5677] close(19 [pid 5676] close(23 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(20 [pid 5676] close(24 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(21 [pid 5676] close(25 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(22 [pid 5676] close(26 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./100/binderfs", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] close(23 [pid 5676] close(27 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] newfstatat(AT_FDCWD, "./99/binderfs", [pid 5049] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./99/binderfs", [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./100/binderfs" [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5677] close(24 [pid 5676] close(28 [pid 5053] <... unlink resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] unlink("./99/binderfs" [pid 5048] unlink("./99/binderfs" [pid 5677] close(25 [pid 5676] close(29 [pid 5049] newfstatat(AT_FDCWD, "./102/binderfs", [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5677] close(26 [pid 5053] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./100/file0", [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] close(27 [pid 5676] exit_group(0 [pid 5053] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = 0 [pid 5049] unlink("./102/binderfs" [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... exit_group resumed>) = ? [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] close(28 [pid 5053] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5050] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] newfstatat(AT_FDCWD, "./99/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5676] +++ exited with 0 +++ [pid 5053] close(4 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 4 [pid 5677] close(29 [pid 5053] <... close resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5677] exit_group(0 [pid 5053] rmdir("./100/file0" [pid 5051] <... restart_syscall resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5048] <... umount2 resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5049] <... unlink resumed>) = 0 [pid 5048] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] <... exit_group resumed>) = ? [pid 5053] <... rmdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] getdents64(4, [pid 5049] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 3 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] newfstatat(AT_FDCWD, "./99/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] getdents64(3, [pid 5050] getdents64(4, [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] newfstatat(3, "", [pid 5053] close(3 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... close resumed>) = 0 [pid 5051] getdents64(3, [pid 5050] close(4 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] rmdir("./100" [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... close resumed>) = 0 [pid 5053] <... rmdir resumed>) = 0 [pid 5048] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./99/file0") = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 4 [pid 5051] newfstatat(AT_FDCWD, "./103/binderfs", [pid 5048] newfstatat(4, "", [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5677] +++ exited with 0 +++ [pid 5053] mkdir("./101", 0777 [pid 5051] unlink("./103/binderfs" [pid 5048] getdents64(4, [pid 5051] <... unlink resumed>) = 0 [pid 5050] getdents64(3, [pid 5049] <... umount2 resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... mkdir resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] getdents64(4, [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5050] close(3 [pid 5049] newfstatat(AT_FDCWD, "./102/file0", [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5052] <... restart_syscall resumed>) = 0 [pid 5051] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] rmdir("./99" [pid 5048] close(4 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... close resumed>) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = 0 [pid 5048] rmdir("./99/file0" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... rmdir resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] close(3 [pid 5052] <... openat resumed>) = 3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] mkdir("./100", 0777 [pid 5049] <... openat resumed>) = 4 [pid 5053] <... close resumed>) = 0 [pid 5052] newfstatat(3, "", [pid 5051] newfstatat(AT_FDCWD, "./103/file0", [pid 5050] <... mkdir resumed>) = 0 [pid 5049] newfstatat(4, "", [pid 5048] getdents64(3, [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(4, [pid 5052] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] getdents64(4, [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(3 [pid 5049] close(4 [pid 5051] <... openat resumed>) = 4 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5049] rmdir("./102/file0" [pid 5052] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(4, "", [pid 5050] <... openat resumed>) = 3 [pid 5048] rmdir("./99" [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] <... rmdir resumed>) = 0 [pid 5051] getdents64(4, [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] newfstatat(AT_FDCWD, "./106/binderfs", [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] close(3 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(4, [pid 5050] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] unlink("./106/binderfs" [pid 5051] close(4 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] mkdir("./100", 0777 [pid 5052] <... unlink resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] getdents64(3, [pid 5048] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5681 attached [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 103 [pid 5051] rmdir("./103/file0" [pid 5681] set_robust_list(0x5555566e0760, 24 [pid 5052] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... rmdir resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5681] <... set_robust_list resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5681] chdir("./101" [pid 5049] close(3 [pid 5048] <... openat resumed>) = 3 [pid 5681] <... chdir resumed>) = 0 [pid 5051] getdents64(3, [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] close(3 [pid 5048] close(3./strace-static-x86_64: Process 5682 attached [pid 5681] <... prctl resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5681] setpgid(0, 0 [pid 5682] set_robust_list(0x5555566e0760, 24 [pid 5681] <... setpgid resumed>) = 0 [pid 5051] rmdir("./103" [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 102 [pid 5049] rmdir("./102" [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5682] <... set_robust_list resumed>) = 0 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5049] <... rmdir resumed>) = 0 [pid 5682] chdir("./100" [pid 5681] <... openat resumed>) = 3 [pid 5051] <... rmdir resumed>) = 0 [pid 5049] mkdir("./103", 0777 [pid 5682] <... chdir resumed>) = 0 [pid 5681] write(3, "1000", 4 [pid 5682] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5681] <... write resumed>) = 4 [pid 5682] <... prctl resumed>) = 0 [pid 5681] close(3 [pid 5051] mkdir("./104", 0777 [pid 5682] setpgid(0, 0 [pid 5681] <... close resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... mkdir resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5681] symlink("/dev/binderfs", "./binderfs" [pid 5052] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5682] <... setpgid resumed>) = 0 [pid 5682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5681] <... symlink resumed>) = 0 [pid 5052] newfstatat(AT_FDCWD, "./106/file0", [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5052] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5681] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... openat resumed>) = 3 [pid 5682] <... openat resumed>) = 3 [pid 5681] <... socket resumed>) = 3 [pid 5052] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] close(3 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 102 [pid 5052] <... openat resumed>) = 4 [pid 5681] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5052] newfstatat(4, "", [pid 5051] <... close resumed>) = 0 [pid 5682] write(3, "1000", 4 [pid 5681] <... socket resumed>) = 4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5682] <... write resumed>) = 4 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5682] close(3 [pid 5681] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5052] getdents64(4, [pid 5681] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5682] <... close resumed>) = 0 [pid 5682] symlink("/dev/binderfs", "./binderfs" [pid 5681] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5682] <... symlink resumed>) = 0 [pid 5681] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(4, ./strace-static-x86_64: Process 5683 attached [pid 5681] memfd_create("syzkaller", 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5052] close(4) = 0 [pid 5052] rmdir("./106/file0" [pid 5681] <... memfd_create resumed>) = 5 [pid 5682] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5052] <... rmdir resumed>) = 0 [pid 5682] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5683] set_robust_list(0x5555566e0760, 24 [pid 5681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] getdents64(3, [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5684 attached [pid 5683] <... set_robust_list resumed>) = 0 [pid 5682] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5681] mkdir("./file0", 000 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] close(3 [pid 5684] set_robust_list(0x5555566e0760, 24 [pid 5683] chdir("./100" [pid 5682] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5681] <... mkdir resumed>) = 0 [pid 5052] close(3 [pid 5049] <... close resumed>) = 0 [pid 5684] <... set_robust_list resumed>) = 0 [pid 5683] <... chdir resumed>) = 0 [pid 5682] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 106 [pid 5682] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5682] memfd_create("syzkaller", 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5684] chdir("./104" [pid 5052] <... close resumed>) = 0 [pid 5684] <... chdir resumed>) = 0 [pid 5682] <... memfd_create resumed>) = 5 [pid 5052] rmdir("./106" [pid 5684] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5682] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5681] symlink(NULL, NULL [pid 5052] <... rmdir resumed>) = 0 [pid 5684] <... prctl resumed>) = 0 [pid 5682] <... mmap resumed>) = 0x7f1263f98000 [pid 5681] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5683] <... prctl resumed>) = 0 [pid 5684] setpgid(0, 0 [pid 5682] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5684] <... setpgid resumed>) = 0 [pid 5682] mkdir("./file0", 000 [pid 5681] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5682] <... mkdir resumed>) = 0 [pid 5684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5683] setpgid(0, 0 [pid 5681] <... mount resumed>) = 0 [pid 5683] <... setpgid resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 105 ./strace-static-x86_64: Process 5685 attached [pid 5685] set_robust_list(0x5555566e0760, 24 [pid 5684] <... openat resumed>) = 3 [pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] mkdir("./107", 0777 [pid 5685] <... set_robust_list resumed>) = 0 [pid 5685] chdir("./103" [pid 5683] <... openat resumed>) = 3 [pid 5052] <... mkdir resumed>) = 0 [pid 5685] <... chdir resumed>) = 0 [pid 5683] write(3, "1000", 4 [pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5684] write(3, "1000", 4 [pid 5682] symlink(NULL, NULL [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5685] setpgid(0, 0 [pid 5684] <... write resumed>) = 4 [pid 5683] <... write resumed>) = 4 [pid 5682] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5681] open(NULL, O_RDONLY [pid 5052] <... openat resumed>) = 3 [pid 5685] <... setpgid resumed>) = 0 [pid 5684] close(3 [pid 5683] close(3 [pid 5682] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5681] <... open resumed>) = -1 EFAULT (Bad address) [pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5684] <... close resumed>) = 0 [pid 5683] <... close resumed>) = 0 [pid 5682] <... mount resumed>) = 0 [pid 5681] close(3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5684] symlink("/dev/binderfs", "./binderfs" [pid 5683] symlink("/dev/binderfs", "./binderfs" [pid 5682] open(NULL, O_RDONLY [pid 5681] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5685] <... openat resumed>) = 3 [pid 5684] <... symlink resumed>) = 0 [pid 5682] <... open resumed>) = -1 EFAULT (Bad address) [pid 5681] close(4 [pid 5052] close(3 [pid 5684] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5681] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5684] <... socket resumed>) = 3 [pid 5682] close(3 [pid 5683] <... symlink resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5685] write(3, "1000", 4 [pid 5684] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5682] <... close resumed>) = 0 [pid 5681] close(5 [pid 5685] <... write resumed>) = 4 [pid 5683] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5685] close(3 [pid 5683] <... socket resumed>) = 3 [pid 5685] <... close resumed>) = 0 [pid 5683] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5685] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5681] <... close resumed>) = 0 [pid 5685] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5684] <... socket resumed>) = 4 [pid 5685] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5682] close(4 [pid 5685] <... socket resumed>) = 4 [pid 5682] <... close resumed>) = 0 [pid 5681] close(6) = -1 EBADF (Bad file descriptor) [pid 5681] close(7 [pid 5682] close(5 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5682] <... close resumed>) = 0 [pid 5681] close(8 [pid 5685] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5684] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5683] <... socket resumed>) = 4 [pid 5682] close(6 [pid 5681] close(9./strace-static-x86_64: Process 5686 attached [pid 5685] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5684] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5683] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] set_robust_list(0x5555566e0760, 24 [pid 5685] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5684] memfd_create("syzkaller", 0 [pid 5683] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5682] close(7 [pid 5681] close(10 [pid 5686] <... set_robust_list resumed>) = 0 [pid 5685] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5684] <... memfd_create resumed>) = 5 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 109 [pid 5686] chdir("./107" [pid 5685] memfd_create("syzkaller", 0 [pid 5684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5683] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5682] close(8 [pid 5681] close(11 [pid 5686] <... chdir resumed>) = 0 [pid 5684] <... mmap resumed>) = 0x7f1263f98000 [pid 5683] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5682] close(9 [pid 5681] close(12 [pid 5686] <... prctl resumed>) = 0 [pid 5684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5683] memfd_create("syzkaller", 0 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] setpgid(0, 0 [pid 5684] mkdir("./file0", 000 [pid 5682] close(10 [pid 5681] close(13 [pid 5683] <... memfd_create resumed>) = 5 [pid 5686] <... setpgid resumed>) = 0 [pid 5685] <... memfd_create resumed>) = 5 [pid 5684] <... mkdir resumed>) = 0 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5685] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5683] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5685] <... mmap resumed>) = 0x7f1263f98000 [pid 5683] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5683] mkdir("./file0", 000 [pid 5681] close(14 [pid 5686] <... openat resumed>) = 3 [pid 5682] close(11) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] write(3, "1000", 4 [pid 5684] symlink(NULL, NULL [pid 5682] close(12 [pid 5681] close(15 [pid 5686] <... write resumed>) = 4 [pid 5684] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5683] <... mkdir resumed>) = 0 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] close(3 [pid 5684] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5682] close(13 [pid 5681] close(16 [pid 5686] <... close resumed>) = 0 [pid 5684] <... mount resumed>) = 0 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] symlink(NULL, NULL [pid 5685] mkdir("./file0", 000 [pid 5682] close(14 [pid 5686] symlink("/dev/binderfs", "./binderfs" [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(17 [pid 5686] <... symlink resumed>) = 0 [pid 5683] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5684] open(NULL, O_RDONLY [pid 5682] close(15 [pid 5681] close(18 [pid 5685] <... mkdir resumed>) = 0 [pid 5686] <... socket resumed>) = 3 [pid 5684] <... open resumed>) = -1 EFAULT (Bad address) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] close(16 [pid 5681] close(19 [pid 5686] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5684] close(3 [pid 5686] <... socket resumed>) = 4 [pid 5684] <... close resumed>) = 0 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(20 [pid 5682] close(17 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5684] close(4 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(21 [pid 5686] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5684] <... close resumed>) = 0 [pid 5682] close(18 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5681] close(22 [pid 5686] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5685] symlink(NULL, NULL [pid 5684] close(5 [pid 5683] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] memfd_create("syzkaller", 0 [pid 5685] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5684] <... close resumed>) = 0 [pid 5682] close(19 [pid 5681] close(23 [pid 5685] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... memfd_create resumed>) = 5 [pid 5684] close(6 [pid 5683] <... mount resumed>) = 0 [pid 5682] close(20 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(24 [pid 5686] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5685] <... mount resumed>) = 0 [pid 5684] close(7 [pid 5682] close(21 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... mmap resumed>) = 0x7f1263f98000 [pid 5685] open(NULL, O_RDONLY [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(25 [pid 5686] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5685] <... open resumed>) = -1 EFAULT (Bad address) [pid 5684] close(8 [pid 5683] open(NULL, O_RDONLY [pid 5682] close(22 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] mkdir("./file0", 000 [pid 5685] close(3 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... open resumed>) = -1 EFAULT (Bad address) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(26 [pid 5686] <... mkdir resumed>) = 0 [pid 5685] <... close resumed>) = 0 [pid 5684] close(9 [pid 5682] close(23 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(3 [pid 5685] close(4 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(27 [pid 5683] <... close resumed>) = 0 [pid 5684] close(10 [pid 5682] close(24 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(28 [pid 5686] symlink(NULL, NULL [pid 5684] close(11 [pid 5682] close(25 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5685] <... close resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(29 [pid 5686] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5684] close(12 [pid 5682] close(26 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... mount resumed>) = 0 [pid 5685] close(5 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(4 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] exit_group(0 [pid 5684] close(13 [pid 5682] close(27 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] <... exit_group resumed>) = ? [pid 5686] open(NULL, O_RDONLY [pid 5684] close(14 [pid 5682] close(28 [pid 5686] <... open resumed>) = -1 EFAULT (Bad address) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(15 [pid 5683] <... close resumed>) = 0 [pid 5686] close(3) = 0 [pid 5685] <... close resumed>) = 0 [pid 5683] close(5 [pid 5685] close(6 [pid 5686] close(4 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = 0 [pid 5682] close(29 [pid 5685] close(7 [pid 5684] close(16 [pid 5683] close(6 [pid 5686] <... close resumed>) = 0 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] close(5 [pid 5685] close(8 [pid 5684] close(17 [pid 5682] exit_group(0 [pid 5686] <... close resumed>) = 0 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(7 [pid 5682] <... exit_group resumed>) = ? [pid 5685] close(9 [pid 5684] close(18 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] +++ exited with 0 +++ [pid 5686] close(6 [pid 5681] +++ exited with 0 +++ [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(8 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5686] close(7 [pid 5685] close(10 [pid 5684] close(19 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(9 [pid 5050] <... restart_syscall resumed>) = 0 [pid 5686] close(8 [pid 5684] close(20 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(11 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(10 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5686] close(9 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(21 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(12 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(11 [pid 5053] <... openat resumed>) = 3 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5686] close(10 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(22 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5050] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(13 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(12 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5686] close(11 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(23 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(14 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(13 [pid 5050] newfstatat(3, "", [pid 5686] close(12 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(24 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(15 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(14 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5686] close(13 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(25 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(16 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(15 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(3, [pid 5686] close(14 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(26 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./101/binderfs", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(17 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(16 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5686] close(15 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(18 [pid 5684] close(27 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./101/binderfs" [pid 5050] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] close(16 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(17 [pid 5053] <... unlink resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(19 [pid 5684] close(28 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] close(17 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(18 [pid 5050] newfstatat(AT_FDCWD, "./100/binderfs", [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(20 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5686] close(18 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(29 [pid 5683] close(19 [pid 5050] unlink("./100/binderfs" [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(21 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5686] close(19 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] exit_group(0 [pid 5683] close(20 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... exit_group resumed>) = ? [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] close(20 [pid 5685] close(22 [pid 5684] +++ exited with 0 +++ [pid 5683] close(21 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./101/file0", [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5686] close(21 [pid 5685] close(23 [pid 5683] close(22 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... restart_syscall resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5686] close(22 [pid 5685] close(24 [pid 5683] close(23 [pid 5053] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] close(23 [pid 5685] close(25 [pid 5683] close(24 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5686] close(24 [pid 5685] close(26 [pid 5683] close(25 [pid 5053] <... openat resumed>) = 4 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./100/file0", [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] close(25 [pid 5683] close(26 [pid 5053] newfstatat(4, "", [pid 5051] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(27 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5686] close(26 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(27 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(28 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] close(27 [pid 5683] close(28 [pid 5053] getdents64(4, [pid 5051] newfstatat(3, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5686] close(28 [pid 5683] close(29 [pid 5053] getdents64(4, [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(29 [pid 5683] exit_group(0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] getdents64(3, [pid 5050] <... openat resumed>) = 4 [pid 5686] close(29 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... exit_group resumed>) = ? [pid 5053] close(4 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] exit_group(0 [pid 5053] <... close resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5686] exit_group(0 [pid 5053] rmdir("./101/file0" [pid 5051] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5686] <... exit_group resumed>) = ? [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(4, [pid 5686] +++ exited with 0 +++ [pid 5683] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=109, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] newfstatat(AT_FDCWD, "./104/binderfs", [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5685] <... exit_group resumed>) = ? [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] getdents64(4, [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5051] unlink("./104/binderfs" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5053] getdents64(3, [pid 5052] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... unlink resumed>) = 0 [pid 5050] close(4 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... close resumed>) = 0 [pid 5052] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5050] rmdir("./100/file0") = 0 [pid 5048] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(3, "", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(3, [pid 5051] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... umount2 resumed>) = 0 [pid 5048] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(3, [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5685] +++ exited with 0 +++ [pid 5053] close(3 [pid 5052] newfstatat(AT_FDCWD, "./107/binderfs", [pid 5051] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] close(3 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5048] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5053] rmdir("./101" [pid 5051] newfstatat(AT_FDCWD, "./104/file0", [pid 5050] <... close resumed>) = 0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... rmdir resumed>) = 0 [pid 5052] unlink("./107/binderfs" [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] rmdir("./100" [pid 5048] newfstatat(AT_FDCWD, "./100/binderfs", [pid 5049] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] <... unlink resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] unlink("./100/binderfs" [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] mkdir("./102", 0777 [pid 5052] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... unlink resumed>) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5049] newfstatat(3, "", [pid 5053] <... mkdir resumed>) = 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] newfstatat(4, "", [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] mkdir("./101", 0777 [pid 5052] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... mkdir resumed>) = 0 [pid 5049] getdents64(3, [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] getdents64(4, [pid 5049] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... openat resumed>) = 3 [pid 5052] newfstatat(AT_FDCWD, "./107/file0", [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./103/binderfs", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] getdents64(4, [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5052] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5048] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] close(4 [pid 5049] unlink("./103/binderfs" [pid 5053] close(3 [pid 5052] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... close resumed>) = 0 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... close resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] rmdir("./104/file0" [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] newfstatat(AT_FDCWD, "./100/file0", [pid 5052] newfstatat(4, "", [pid 5051] <... rmdir resumed>) = 0 [pid 5049] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] close(3) = 0 [pid 5049] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(4, [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] newfstatat(AT_FDCWD, "./103/file0", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] getdents64(4, [pid 5051] getdents64(3, [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] close(4 [pid 5051] close(3 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... openat resumed>) = 4 [pid 5052] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5049] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] newfstatat(4, "", [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 104 [pid 5052] rmdir("./107/file0" [pid 5051] rmdir("./104" [pid 5049] <... openat resumed>) = 4 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5052] getdents64(3, [pid 5049] newfstatat(4, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(3 [pid 5049] getdents64(4, [pid 5048] getdents64(4, [pid 5052] <... close resumed>) = 0 [pid 5051] mkdir("./105", 0777 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] rmdir("./107" [pid 5051] <... mkdir resumed>) = 0 [pid 5049] getdents64(4, [pid 5048] getdents64(4, ./strace-static-x86_64: Process 5688 attached [pid 5052] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 103 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4 [pid 5049] close(4 [pid 5048] <... close resumed>) = 0 [pid 5052] mkdir("./108", 0777 [pid 5049] <... close resumed>) = 0 [pid 5048] rmdir("./100/file0"./strace-static-x86_64: Process 5687 attached [pid 5688] set_robust_list(0x5555566e0760, 24 [pid 5052] <... mkdir resumed>) = 0 [pid 5049] rmdir("./103/file0" [pid 5048] <... rmdir resumed>) = 0 [pid 5688] <... set_robust_list resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] <... rmdir resumed>) = 0 [pid 5688] chdir("./101" [pid 5687] set_robust_list(0x5555566e0760, 24 [pid 5051] <... openat resumed>) = 3 [pid 5687] <... set_robust_list resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5049] getdents64(3, [pid 5687] chdir("./102" [pid 5688] <... chdir resumed>) = 0 [pid 5687] <... chdir resumed>) = 0 [pid 5052] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] getdents64(3, [pid 5688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5688] <... prctl resumed>) = 0 [pid 5687] <... prctl resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] close(3 [pid 5688] setpgid(0, 0 [pid 5687] setpgid(0, 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] close(3 [pid 5049] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5688] <... setpgid resumed>) = 0 [pid 5687] <... setpgid resumed>) = 0 [pid 5052] close(3 [pid 5051] <... close resumed>) = 0 [pid 5049] rmdir("./103" [pid 5048] close(3 [pid 5688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... close resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5688] <... openat resumed>) = 3 [pid 5687] <... openat resumed>) = 3 [pid 5687] write(3, "1000", 4 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5687] <... write resumed>) = 4 [pid 5687] close(3 [pid 5048] rmdir("./100" [pid 5687] <... close resumed>) = 0 [pid 5687] symlink("/dev/binderfs", "./binderfs" [pid 5048] <... rmdir resumed>) = 0 [pid 5049] mkdir("./104", 0777 [pid 5688] write(3, "1000", 4 [pid 5687] <... symlink resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5048] mkdir("./101", 0777 [pid 5688] <... write resumed>) = 4 [pid 5687] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... mkdir resumed>) = 0 [pid 5688] close(3) = 0 [pid 5687] <... socket resumed>) = 3 [pid 5688] symlink("/dev/binderfs", "./binderfs" [pid 5687] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5688] <... symlink resumed>) = 0 [pid 5688] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5687] <... socket resumed>) = 4 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5688] <... socket resumed>) = 3 [pid 5687] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5049] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5690 attached [pid 5688] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5689 attached [pid 5690] set_robust_list(0x5555566e0760, 24 [pid 5688] <... socket resumed>) = 4 [pid 5687] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 110 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 107 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5690] <... set_robust_list resumed>) = 0 [pid 5689] set_robust_list(0x5555566e0760, 24 [pid 5688] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5687] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] close(3 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5690] chdir("./108" [pid 5689] <... set_robust_list resumed>) = 0 [pid 5688] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5687] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... close resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5690] <... chdir resumed>) = 0 [pid 5688] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5689] chdir("./105" [pid 5688] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5687] memfd_create("syzkaller", 0 [pid 5048] close(3 [pid 5690] <... prctl resumed>) = 0 [pid 5689] <... chdir resumed>) = 0 [pid 5688] memfd_create("syzkaller", 0 [pid 5687] <... memfd_create resumed>) = 5 [pid 5687] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5688] <... memfd_create resumed>) = 5 [pid 5687] <... mmap resumed>) = 0x7f1263f98000 [pid 5690] setpgid(0, 0 [pid 5688] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... close resumed>) = 0 [pid 5690] <... setpgid resumed>) = 0 [pid 5688] <... mmap resumed>) = 0x7f1263f98000 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5688] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5688] mkdir("./file0", 000 [pid 5690] <... openat resumed>) = 3 [pid 5688] <... mkdir resumed>) = 0 [pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 106 [pid 5690] write(3, "1000", 4) = 4 [pid 5688] symlink(NULL, NULL [pid 5690] close(3 [pid 5688] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5689] <... prctl resumed>) = 0 [pid 5690] <... close resumed>) = 0 [pid 5687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5690] symlink("/dev/binderfs", "./binderfs" [pid 5688] mount(NULL, "./file0", "sysfs", 0, NULL./strace-static-x86_64: Process 5692 attached ./strace-static-x86_64: Process 5691 attached [pid 5690] <... symlink resumed>) = 0 [pid 5689] setpgid(0, 0 [pid 5688] <... mount resumed>) = 0 [pid 5687] mkdir("./file0", 000 [pid 5691] set_robust_list(0x5555566e0760, 24 [pid 5689] <... setpgid resumed>) = 0 [pid 5692] set_robust_list(0x5555566e0760, 24 [pid 5688] open(NULL, O_RDONLY [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 103 [pid 5692] <... set_robust_list resumed>) = 0 [pid 5688] <... open resumed>) = -1 EFAULT (Bad address) [pid 5692] chdir("./101" [pid 5691] <... set_robust_list resumed>) = 0 [pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5687] <... mkdir resumed>) = 0 [pid 5692] <... chdir resumed>) = 0 [pid 5691] chdir("./104" [pid 5690] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5688] close(3 [pid 5692] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5691] <... chdir resumed>) = 0 [pid 5690] <... socket resumed>) = 3 [pid 5689] <... openat resumed>) = 3 [pid 5688] <... close resumed>) = 0 [pid 5687] symlink(NULL, NULL [pid 5692] <... prctl resumed>) = 0 [pid 5691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5689] write(3, "1000", 4 [pid 5688] close(4 [pid 5687] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5692] setpgid(0, 0 [pid 5691] <... prctl resumed>) = 0 [pid 5690] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5689] <... write resumed>) = 4 [pid 5688] <... close resumed>) = 0 [pid 5687] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5692] <... setpgid resumed>) = 0 [pid 5691] setpgid(0, 0 [pid 5690] <... socket resumed>) = 4 [pid 5689] close(3 [pid 5692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5689] <... close resumed>) = 0 [pid 5688] close(5 [pid 5687] <... mount resumed>) = 0 [pid 5691] <... setpgid resumed>) = 0 [pid 5692] <... openat resumed>) = 3 [pid 5690] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5689] symlink("/dev/binderfs", "./binderfs" [pid 5688] <... close resumed>) = 0 [pid 5687] open(NULL, O_RDONLY [pid 5691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5690] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5690] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5688] close(6 [pid 5689] <... symlink resumed>) = 0 [pid 5692] write(3, "1000", 4 [pid 5690] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... write resumed>) = 4 [pid 5691] <... openat resumed>) = 3 [pid 5690] memfd_create("syzkaller", 0 [pid 5689] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5688] close(7 [pid 5687] <... open resumed>) = -1 EFAULT (Bad address) [pid 5692] close(3 [pid 5691] write(3, "1000", 4 [pid 5690] <... memfd_create resumed>) = 5 [pid 5689] <... socket resumed>) = 3 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... close resumed>) = 0 [pid 5691] <... write resumed>) = 4 [pid 5690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5689] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5688] close(8 [pid 5687] close(3 [pid 5692] symlink("/dev/binderfs", "./binderfs" [pid 5691] close(3 [pid 5690] <... mmap resumed>) = 0x7f1263f98000 [pid 5689] <... socket resumed>) = 4 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = 0 [pid 5692] <... symlink resumed>) = 0 [pid 5691] <... close resumed>) = 0 [pid 5690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5689] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5688] close(9 [pid 5687] close(4 [pid 5691] symlink("/dev/binderfs", "./binderfs" [pid 5690] mkdir("./file0", 000 [pid 5689] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = 0 [pid 5692] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5691] <... symlink resumed>) = 0 [pid 5689] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5688] close(10 [pid 5687] close(5 [pid 5692] <... socket resumed>) = 3 [pid 5689] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = 0 [pid 5692] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5691] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5689] memfd_create("syzkaller", 0 [pid 5687] close(6 [pid 5688] close(11 [pid 5691] <... socket resumed>) = 3 [pid 5689] <... memfd_create resumed>) = 5 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... socket resumed>) = 4 [pid 5691] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5691] <... socket resumed>) = 4 [pid 5690] <... mkdir resumed>) = 0 [pid 5689] <... mmap resumed>) = 0x7f1263f98000 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(7 [pid 5692] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5689] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5689] mkdir("./file0", 000 [pid 5688] close(12 [pid 5692] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5691] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5690] symlink(NULL, NULL [pid 5689] <... mkdir resumed>) = 0 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(8 [pid 5692] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5691] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5690] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5689] symlink(NULL, NULL [pid 5688] close(13 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5691] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5690] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5689] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(9 [pid 5692] memfd_create("syzkaller", 0 [pid 5691] memfd_create("syzkaller", 0 [pid 5689] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5688] close(14 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... memfd_create resumed>) = 5 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5688] close(15) = -1 EBADF (Bad file descriptor) [pid 5688] close(16 [pid 5692] <... mmap resumed>) = 0x7f1263f98000 [pid 5691] <... memfd_create resumed>) = 5 [pid 5690] <... mount resumed>) = 0 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(10 [pid 5692] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5691] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5689] <... mount resumed>) = 0 [pid 5688] close(17 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] open(NULL, O_RDONLY [pid 5692] mkdir("./file0", 000 [pid 5691] <... mmap resumed>) = 0x7f1263f98000 [pid 5689] open(NULL, O_RDONLY [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(11 [pid 5691] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5689] <... open resumed>) = -1 EFAULT (Bad address) [pid 5688] close(18 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... open resumed>) = -1 EFAULT (Bad address) [pid 5690] close(3 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] close(19 [pid 5691] mkdir("./file0", 000 [pid 5689] close(3 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(12 [pid 5691] <... mkdir resumed>) = 0 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(13 [pid 5689] <... close resumed>) = 0 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(4 [pid 5687] close(14) = -1 EBADF (Bad file descriptor) [pid 5687] close(15 [pid 5689] <... close resumed>) = 0 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] symlink(NULL, NULL [pid 5687] close(16 [pid 5691] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5689] close(5 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5687] close(17) = -1 EBADF (Bad file descriptor) [pid 5692] <... mkdir resumed>) = 0 [pid 5690] <... close resumed>) = 0 [pid 5689] <... close resumed>) = 0 [pid 5688] close(20 [pid 5687] close(18 [pid 5691] <... mount resumed>) = 0 [pid 5689] close(6 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] symlink(NULL, NULL [pid 5690] close(4 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(19 [pid 5692] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5691] open(NULL, O_RDONLY [pid 5690] <... close resumed>) = 0 [pid 5689] close(7 [pid 5688] close(21 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5691] <... open resumed>) = -1 EFAULT (Bad address) [pid 5690] close(5 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(20 [pid 5691] close(3 [pid 5689] close(8 [pid 5688] close(22 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... mount resumed>) = 0 [pid 5691] <... close resumed>) = 0 [pid 5690] <... close resumed>) = 0 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] open(NULL, O_RDONLY [pid 5691] close(4 [pid 5690] close(6 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] close(23 [pid 5687] close(21 [pid 5692] <... open resumed>) = -1 EFAULT (Bad address) [pid 5691] <... close resumed>) = 0 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(9 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(3 [pid 5690] close(7 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] close(24 [pid 5687] close(22 [pid 5692] <... close resumed>) = 0 [pid 5691] close(5 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(10 [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(4 [pid 5691] <... close resumed>) = 0 [pid 5690] close(8 [pid 5688] close(25 [pid 5687] close(23 [pid 5692] <... close resumed>) = 0 [pid 5691] close(6 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(5 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(9 [pid 5689] close(11 [pid 5688] close(26 [pid 5687] close(24 [pid 5692] <... close resumed>) = 0 [pid 5691] close(7 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(6 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(10 [pid 5689] close(12 [pid 5688] close(27 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(8 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(25 [pid 5692] close(7 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(11 [pid 5689] close(13 [pid 5688] close(28 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(9 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] close(26 [pid 5692] close(8 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(12 [pid 5689] close(14 [pid 5688] close(29 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(10 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(15 [pid 5687] close(27 [pid 5691] close(11 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] exit_group(0 [pid 5692] close(9 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(13 [pid 5689] close(16 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(12 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] <... exit_group resumed>) = ? [pid 5687] close(28 [pid 5692] close(10 [pid 5690] close(14 [pid 5689] close(17 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(13 [pid 5689] close(18 [pid 5687] close(29 [pid 5692] close(11 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(15 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(14 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(19 [pid 5692] close(12 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(16 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] exit_group(0 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(15 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(20 [pid 5692] close(13 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(17 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] <... exit_group resumed>) = ? [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(21 [pid 5692] close(14 [pid 5691] close(16 [pid 5690] close(18 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5688] +++ exited with 0 +++ [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(22 [pid 5687] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5692] close(15 [pid 5691] close(17 [pid 5690] close(19 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(23 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5692] close(16 [pid 5691] close(18 [pid 5690] close(20 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... restart_syscall resumed>) = 0 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(24 [pid 5692] close(17 [pid 5690] close(21 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(18 [pid 5690] close(22 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(19 [pid 5690] close(23 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(20 [pid 5690] close(24 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(21) = -1 EBADF (Bad file descriptor) [pid 5690] close(25 [pid 5692] close(22 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(26 [pid 5053] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5692] close(23 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] close(27 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5692] close(24) = -1 EBADF (Bad file descriptor) [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(25) = -1 EBADF (Bad file descriptor) [pid 5690] close(28 [pid 5692] close(26 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(27) = -1 EBADF (Bad file descriptor) [pid 5691] close(19 [pid 5690] close(29 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5692] close(28 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(25 [pid 5691] close(20 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(26 [pid 5691] close(21 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(27 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(22 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5692] close(29 [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(28 [pid 5692] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] close(23 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] close(29 [pid 5692] exit_group(0 [pid 5691] close(24 [pid 5689] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] exit_group(0 [pid 5691] close(25) = -1 EBADF (Bad file descriptor) [pid 5691] close(26 [pid 5689] <... exit_group resumed>) = ? [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5692] <... exit_group resumed>) = ? [pid 5691] close(27 [pid 5690] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5689] +++ exited with 0 +++ [pid 5053] newfstatat(3, "", [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5692] +++ exited with 0 +++ [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5690] exit_group(0 [pid 5691] close(28 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5691] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5691] close(29) = -1 EBADF (Bad file descriptor) [pid 5691] exit_group(0 [pid 5053] getdents64(3, [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=107, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5050] <... openat resumed>) = 3 [pid 5048] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5691] <... exit_group resumed>) = ? [pid 5690] <... exit_group resumed>) = ? [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(3, "", [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5691] +++ exited with 0 +++ [pid 5048] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] newfstatat(3, "", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] getdents64(3, [pid 5051] <... openat resumed>) = 3 [pid 5049] <... openat resumed>) = 3 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] newfstatat(3, "", [pid 5053] newfstatat(AT_FDCWD, "./102/binderfs", [pid 5050] getdents64(3, [pid 5048] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] newfstatat(3, "", [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(AT_FDCWD, "./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, [pid 5048] unlink("./101/binderfs" [pid 5050] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... unlink resumed>) = 0 [pid 5051] getdents64(3, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] newfstatat(AT_FDCWD, "./101/binderfs", [pid 5049] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5690] +++ exited with 0 +++ [pid 5053] unlink("./102/binderfs" [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=110, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5048] <... umount2 resumed>) = 0 [pid 5053] <... unlink resumed>) = 0 [pid 5051] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] unlink("./101/binderfs" [pid 5049] newfstatat(AT_FDCWD, "./104/binderfs", [pid 5048] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5050] <... unlink resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] newfstatat(3, "", [pid 5051] newfstatat(AT_FDCWD, "./105/binderfs", [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(AT_FDCWD, "./101/file0", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] unlink("./104/binderfs" [pid 5051] unlink("./105/binderfs" [pid 5048] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... unlink resumed>) = 0 [pid 5052] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] unlink("./108/binderfs" [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... unlink resumed>) = 0 [pid 5052] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = 0 [pid 5048] <... openat resumed>) = 4 [pid 5052] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./108/file0", [pid 5048] newfstatat(4, "", [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5049] <... umount2 resumed>) = 0 [pid 5048] getdents64(4, [pid 5052] newfstatat(4, "", [pid 5053] <... umount2 resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, 0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] getdents64(4, [pid 5052] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(4 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] <... close resumed>) = 0 [pid 5052] rmdir("./108/file0" [pid 5053] newfstatat(AT_FDCWD, "./102/file0", [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] newfstatat(AT_FDCWD, "./104/file0", [pid 5048] close(4 [pid 5052] getdents64(3, [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5052] close(3 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] rmdir("./101/file0" [pid 5053] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5052] rmdir("./108" [pid 5048] <... rmdir resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] getdents64(3, [pid 5053] <... openat resumed>) = 4 [pid 5050] newfstatat(AT_FDCWD, "./101/file0", [pid 5049] <... openat resumed>) = 4 [pid 5052] <... rmdir resumed>) = 0 [pid 5052] mkdir("./109", 0777 [pid 5049] newfstatat(4, "", [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(4, [pid 5052] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 4 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] close(4 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] newfstatat(4, "", [pid 5049] <... close resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] rmdir("./104/file0" [pid 5048] close(3 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(3 [pid 5053] getdents64(4, [pid 5051] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5053] getdents64(4, [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] getdents64(4, [pid 5049] getdents64(3, [pid 5048] rmdir("./101" [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5053] close(4 [pid 5049] close(3 [pid 5053] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] getdents64(4, [pid 5049] <... close resumed>) = 0 [pid 5053] rmdir("./102/file0"./strace-static-x86_64: Process 5693 attached ) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 111 [pid 5693] set_robust_list(0x5555566e0760, 24 [pid 5051] newfstatat(AT_FDCWD, "./105/file0", [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] rmdir("./104" [pid 5048] mkdir("./102", 0777 [pid 5693] <... set_robust_list resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] close(4 [pid 5049] <... rmdir resumed>) = 0 [pid 5693] chdir("./109" [pid 5053] getdents64(3, [pid 5051] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... close resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5693] <... chdir resumed>) = 0 [pid 5050] rmdir("./101/file0" [pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5693] <... prctl resumed>) = 0 [pid 5693] setpgid(0, 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5693] <... setpgid resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] close(3 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] mkdir("./105", 0777 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5693] <... openat resumed>) = 3 [pid 5053] <... close resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] <... mkdir resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5693] write(3, "1000", 4 [pid 5051] <... openat resumed>) = 4 [pid 5693] <... write resumed>) = 4 [pid 5693] close(3 [pid 5053] rmdir("./102" [pid 5051] newfstatat(4, "", [pid 5050] <... rmdir resumed>) = 0 [pid 5048] close(3 [pid 5693] <... close resumed>) = 0 [pid 5693] symlink("/dev/binderfs", "./binderfs" [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] getdents64(3, [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5051] getdents64(4, [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] close(3 [pid 5053] mkdir("./103", 0777 [pid 5051] getdents64(4, [pid 5050] <... close resumed>) = 0 [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5053] <... mkdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] rmdir("./101" [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5050] <... rmdir resumed>) = 0 [pid 5051] close(4) = 0 [pid 5049] close(3) = 0 [pid 5051] rmdir("./105/file0" [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... rmdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5050] mkdir("./102", 0777 [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5050] <... mkdir resumed>) = 0 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] close(3) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] getdents64(3, [pid 5693] <... symlink resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5693] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5051] close(3 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5051] <... close resumed>) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5051] rmdir("./105" [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5051] <... rmdir resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5694 attached [pid 5693] <... socket resumed>) = 3 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 107 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5693] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5694] set_robust_list(0x5555566e0760, 24 [pid 5050] close(3) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5693] <... socket resumed>) = 4 [pid 5693] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] mkdir("./106", 0777 [pid 5694] <... set_robust_list resumed>) = 0 [pid 5693] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5693] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 104 [pid 5694] chdir("./105" [pid 5693] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... mkdir resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 105 ./strace-static-x86_64: Process 5696 attached [pid 5696] set_robust_list(0x5555566e0760, 24 [pid 5693] memfd_create("syzkaller", 0 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5696] <... set_robust_list resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5696] chdir("./102"./strace-static-x86_64: Process 5695 attached [pid 5694] <... chdir resumed>) = 0 [pid 5693] <... memfd_create resumed>) = 5 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5695] set_robust_list(0x5555566e0760, 24 [pid 5696] <... chdir resumed>) = 0 [pid 5694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5697 attached [pid 5695] <... set_robust_list resumed>) = 0 [pid 5696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5693] <... mmap resumed>) = 0x7f1263f98000 [pid 5697] set_robust_list(0x5555566e0760, 24 [pid 5696] <... prctl resumed>) = 0 [pid 5051] close(3 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 104 [pid 5697] <... set_robust_list resumed>) = 0 [pid 5696] setpgid(0, 0 [pid 5694] <... prctl resumed>) = 0 [pid 5693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5697] chdir("./102" [pid 5695] chdir("./103" [pid 5696] <... setpgid resumed>) = 0 [pid 5694] setpgid(0, 0 [pid 5693] mkdir("./file0", 000 [pid 5051] <... close resumed>) = 0 [pid 5697] <... chdir resumed>) = 0 [pid 5695] <... chdir resumed>) = 0 [pid 5696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5694] <... setpgid resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5697] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5695] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5693] <... mkdir resumed>) = 0 [pid 5697] <... prctl resumed>) = 0 [pid 5695] <... prctl resumed>) = 0 [pid 5697] setpgid(0, 0 [pid 5695] setpgid(0, 0 [pid 5696] <... openat resumed>) = 3 [pid 5694] <... openat resumed>) = 3 [pid 5693] symlink(NULL, NULL [pid 5695] <... setpgid resumed>) = 0 [pid 5693] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5697] <... setpgid resumed>) = 0 [pid 5695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5696] write(3, "1000", 4 [pid 5694] write(3, "1000", 4 [pid 5693] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5695] <... openat resumed>) = 3 [pid 5696] <... write resumed>) = 4 [pid 5697] <... openat resumed>) = 3 [pid 5695] write(3, "1000", 4 [pid 5696] close(3 [pid 5694] <... write resumed>) = 4 [pid 5693] <... mount resumed>) = 0 [pid 5696] <... close resumed>) = 0 [pid 5697] write(3, "1000", 4 [pid 5695] <... write resumed>) = 4 [pid 5696] symlink("/dev/binderfs", "./binderfs" [pid 5693] open(NULL, O_RDONLY [pid 5694] close(3./strace-static-x86_64: Process 5698 attached [pid 5697] <... write resumed>) = 4 [pid 5695] close(3 [pid 5696] <... symlink resumed>) = 0 [pid 5694] <... close resumed>) = 0 [pid 5693] <... open resumed>) = -1 EFAULT (Bad address) [pid 5698] set_robust_list(0x5555566e0760, 24 [pid 5695] <... close resumed>) = 0 [pid 5698] <... set_robust_list resumed>) = 0 [pid 5693] close(3 [pid 5697] close(3 [pid 5696] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5693] <... close resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 108 [pid 5698] chdir("./106" [pid 5697] <... close resumed>) = 0 [pid 5696] <... socket resumed>) = 3 [pid 5695] symlink("/dev/binderfs", "./binderfs" [pid 5693] close(4 [pid 5697] symlink("/dev/binderfs", "./binderfs" [pid 5696] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5697] <... symlink resumed>) = 0 [pid 5696] <... socket resumed>) = 4 [pid 5693] <... close resumed>) = 0 [pid 5698] <... chdir resumed>) = 0 [pid 5697] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5695] <... symlink resumed>) = 0 [pid 5696] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5694] symlink("/dev/binderfs", "./binderfs" [pid 5693] close(5 [pid 5698] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5697] <... socket resumed>) = 3 [pid 5696] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5694] <... symlink resumed>) = 0 [pid 5698] <... prctl resumed>) = 0 [pid 5695] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5694] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5693] <... close resumed>) = 0 [pid 5698] setpgid(0, 0 [pid 5697] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5695] <... socket resumed>) = 3 [pid 5696] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5694] <... socket resumed>) = 3 [pid 5693] close(6 [pid 5698] <... setpgid resumed>) = 0 [pid 5697] <... socket resumed>) = 4 [pid 5695] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5696] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5694] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5697] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5695] <... socket resumed>) = 4 [pid 5696] memfd_create("syzkaller", 0 [pid 5694] <... socket resumed>) = 4 [pid 5693] close(7 [pid 5697] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5698] <... openat resumed>) = 3 [pid 5697] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5695] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5694] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] write(3, "1000", 4 [pid 5697] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5695] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5696] <... memfd_create resumed>) = 5 [pid 5694] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5693] close(8 [pid 5698] <... write resumed>) = 4 [pid 5697] memfd_create("syzkaller", 0 [pid 5696] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5694] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5698] close(3 [pid 5695] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5696] <... mmap resumed>) = 0x7f1263f98000 [pid 5694] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5693] close(9 [pid 5698] <... close resumed>) = 0 [pid 5697] <... memfd_create resumed>) = 5 [pid 5695] memfd_create("syzkaller", 0 [pid 5696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] symlink("/dev/binderfs", "./binderfs" [pid 5697] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5695] <... memfd_create resumed>) = 5 [pid 5696] mkdir("./file0", 000 [pid 5694] memfd_create("syzkaller", 0 [pid 5693] close(10 [pid 5698] <... symlink resumed>) = 0 [pid 5697] <... mmap resumed>) = 0x7f1263f98000 [pid 5695] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5696] <... mkdir resumed>) = 0 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5695] <... mmap resumed>) = 0x7f1263f98000 [pid 5694] <... memfd_create resumed>) = 5 [pid 5697] mkdir("./file0", 000 [pid 5698] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5697] <... mkdir resumed>) = 0 [pid 5695] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5696] symlink(NULL, NULL [pid 5694] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5693] close(11 [pid 5698] <... socket resumed>) = 3 [pid 5695] mkdir("./file0", 000 [pid 5694] <... mmap resumed>) = 0x7f1263f98000 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5693] close(12 [pid 5696] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5698] <... socket resumed>) = 4 [pid 5697] symlink(NULL, NULL [pid 5696] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5694] mkdir("./file0", 000 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... mkdir resumed>) = 0 [pid 5696] <... mount resumed>) = 0 [pid 5693] close(13 [pid 5698] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5697] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5695] symlink(NULL, NULL [pid 5694] <... mkdir resumed>) = 0 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5697] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5695] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5693] close(14 [pid 5698] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5697] <... mount resumed>) = 0 [pid 5695] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5696] open(NULL, O_RDONLY [pid 5694] symlink(NULL, NULL [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5694] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5693] close(15 [pid 5698] memfd_create("syzkaller", 0 [pid 5696] <... open resumed>) = -1 EFAULT (Bad address) [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5697] open(NULL, O_RDONLY [pid 5696] close(3 [pid 5693] close(16 [pid 5698] <... memfd_create resumed>) = 5 [pid 5697] <... open resumed>) = -1 EFAULT (Bad address) [pid 5696] <... close resumed>) = 0 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(3 [pid 5695] <... mount resumed>) = 0 [pid 5694] <... mount resumed>) = 0 [pid 5693] close(17 [pid 5698] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5697] <... close resumed>) = 0 [pid 5695] open(NULL, O_RDONLY [pid 5696] close(4 [pid 5694] open(NULL, O_RDONLY [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5695] <... open resumed>) = -1 EFAULT (Bad address) [pid 5696] <... close resumed>) = 0 [pid 5694] <... open resumed>) = -1 EFAULT (Bad address) [pid 5693] close(18 [pid 5698] mkdir("./file0", 000 [pid 5697] close(4 [pid 5695] close(3 [pid 5696] close(5 [pid 5694] close(3 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] <... close resumed>) = 0 [pid 5696] <... close resumed>) = 0 [pid 5694] <... close resumed>) = 0 [pid 5693] close(19 [pid 5697] close(5 [pid 5696] close(6 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... mkdir resumed>) = 0 [pid 5697] <... close resumed>) = 0 [pid 5695] <... close resumed>) = 0 [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(4 [pid 5693] close(20 [pid 5698] symlink(NULL, NULL [pid 5697] close(6 [pid 5695] close(4 [pid 5696] close(7 [pid 5694] <... close resumed>) = 0 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = 0 [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5693] close(21 [pid 5698] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5697] close(7 [pid 5695] close(5 [pid 5694] close(5 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5693] close(22 [pid 5695] <... close resumed>) = 0 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(6 [pid 5696] close(8 [pid 5694] <... close resumed>) = 0 [pid 5693] close(23 [pid 5697] close(8 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(6 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... mount resumed>) = 0 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(7 [pid 5696] close(9 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5693] close(24 [pid 5698] open(NULL, O_RDONLY [pid 5697] close(9 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(7 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... open resumed>) = -1 EFAULT (Bad address) [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(8 [pid 5696] close(10 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5693] close(25 [pid 5698] close(3 [pid 5697] close(10 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(8 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... close resumed>) = 0 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(9 [pid 5696] close(11 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5693] close(26 [pid 5698] close(4 [pid 5697] close(11 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(9 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... close resumed>) = 0 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] close(12 [pid 5693] close(27 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(10 [pid 5698] close(5 [pid 5697] close(12 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(10 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... close resumed>) = 0 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(11 [pid 5696] close(13 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5693] close(28 [pid 5698] close(6 [pid 5697] close(13 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(11 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] close(14 [pid 5695] close(12 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5693] close(29 [pid 5698] close(7 [pid 5697] close(14 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(12 [pid 5693] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(13 [pid 5696] close(15 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5693] exit_group(0 [pid 5698] close(8 [pid 5697] close(15 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(13 [pid 5693] <... exit_group resumed>) = ? [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(14 [pid 5696] close(16 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] close(9 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(14 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(15 [pid 5698] close(10) = -1 EBADF (Bad file descriptor) [pid 5697] close(16 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] close(11 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(16 [pid 5696] close(17 [pid 5694] close(15 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(17 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] close(12 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(17 [pid 5696] close(18 [pid 5694] close(16 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(18 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5693] +++ exited with 0 +++ [pid 5698] close(13 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(18 [pid 5696] close(19 [pid 5694] close(17 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(19 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=111, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5698] close(14 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(19 [pid 5696] close(20 [pid 5694] close(18 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(20 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... restart_syscall resumed>) = 0 [pid 5698] close(15 [pid 5695] close(20 [pid 5694] close(19 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] close(16 [pid 5695] close(21 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] close(17 [pid 5695] close(22 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] close(18 [pid 5695] close(23 [pid 5694] close(20 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] close(19 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(21 [pid 5695] close(24 [pid 5696] close(21 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5698] close(20 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(21 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(22 [pid 5695] close(25 [pid 5696] close(22 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5698] close(21 [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(22 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] close(26 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] close(22 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(23 [pid 5052] <... openat resumed>) = 3 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(23 [pid 5695] close(27 [pid 5696] close(23 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5698] close(23 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(24 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(24 [pid 5695] close(28 [pid 5696] close(24 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5698] close(24 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(25 [pid 5052] getdents64(3, [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(25 [pid 5695] close(29 [pid 5696] close(25 [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5698] close(25 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] close(26 [pid 5052] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(26 [pid 5696] close(26 [pid 5698] close(26 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5695] exit_group(0 [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(27 [pid 5695] <... exit_group resumed>) = ? [pid 5696] close(27 [pid 5694] close(27 [pid 5052] newfstatat(AT_FDCWD, "./109/binderfs", [pid 5698] close(27 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(28 [pid 5696] close(28 [pid 5694] close(28 [pid 5052] unlink("./109/binderfs" [pid 5698] close(28 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] close(29 [pid 5696] close(29 [pid 5694] close(29 [pid 5052] <... unlink resumed>) = 0 [pid 5698] close(29 [pid 5697] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5696] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5694] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5698] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5697] exit_group(0 [pid 5696] exit_group(0 [pid 5694] exit_group(0 [pid 5698] exit_group(0 [pid 5697] <... exit_group resumed>) = ? [pid 5696] <... exit_group resumed>) = ? [pid 5694] <... exit_group resumed>) = ? [pid 5698] <... exit_group resumed>) = ? [pid 5695] +++ exited with 0 +++ [pid 5696] +++ exited with 0 +++ [pid 5694] +++ exited with 0 +++ [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=107, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5698] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=108, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5052] <... umount2 resumed>) = 0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5052] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5051] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5697] +++ exited with 0 +++ [pid 5052] newfstatat(AT_FDCWD, "./109/file0", [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(3, "", [pid 5049] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] newfstatat(3, "", [pid 5053] <... openat resumed>) = 3 [pid 5052] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... openat resumed>) = 3 [pid 5053] newfstatat(3, "", [pid 5052] <... openat resumed>) = 4 [pid 5051] getdents64(3, [pid 5050] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] newfstatat(3, "", [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] newfstatat(4, "", [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(3, [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(3, [pid 5048] getdents64(3, [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] getdents64(4, [pid 5050] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5052] getdents64(4, [pid 5048] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] close(4 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./103/binderfs", [pid 5051] newfstatat(AT_FDCWD, "./106/binderfs", [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... close resumed>) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] newfstatat(AT_FDCWD, "./102/binderfs", [pid 5052] rmdir("./109/file0" [pid 5050] newfstatat(3, "", [pid 5049] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] unlink("./103/binderfs" [pid 5051] unlink("./106/binderfs" [pid 5053] <... unlink resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(3, [pid 5049] newfstatat(AT_FDCWD, "./105/binderfs", [pid 5050] getdents64(3, [pid 5048] unlink("./102/binderfs" [pid 5053] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5053] <... umount2 resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5051] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] newfstatat(AT_FDCWD, "./106/file0", [pid 5053] newfstatat(AT_FDCWD, "./103/file0", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... openat resumed>) = 4 [pid 5053] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5051] newfstatat(4, "", [pid 5053] newfstatat(4, "", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(4, [pid 5051] getdents64(4, [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] close(3 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5053] getdents64(4, [pid 5051] getdents64(4, [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5053] close(4) = 0 [pid 5051] close(4) = 0 [pid 5050] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] unlink("./105/binderfs" [pid 5048] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5053] rmdir("./103/file0" [pid 5051] rmdir("./106/file0" [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5052] rmdir("./109" [pid 5053] getdents64(3, [pid 5049] <... unlink resumed>) = 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] mkdir("./110", 0777 [pid 5050] newfstatat(AT_FDCWD, "./102/binderfs", [pid 5051] getdents64(3, [pid 5053] close(3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] <... close resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5050] unlink("./102/binderfs" [pid 5053] rmdir("./103" [pid 5051] close(3 [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5051] rmdir("./106") = 0 [pid 5053] mkdir("./104", 0777) = 0 [pid 5050] <... unlink resumed>) = 0 [pid 5050] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] mkdir("./107", 0777 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5051] <... mkdir resumed>) = 0 [pid 5048] <... umount2 resumed>) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5049] <... umount2 resumed>) = 0 [pid 5050] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./102/file0", [pid 5049] newfstatat(AT_FDCWD, "./105/file0", [pid 5048] newfstatat(AT_FDCWD, "./102/file0", [pid 5052] <... openat resumed>) = 3 [pid 5053] <... openat resumed>) = 3 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... openat resumed>) = 3 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5053] close(3) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] close(3 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5050] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... close resumed>) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] close(3) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... openat resumed>) = 4 [pid 5049] <... openat resumed>) = 4 [pid 5048] <... openat resumed>) = 4 [pid 5050] newfstatat(4, "", [pid 5049] newfstatat(4, "", [pid 5048] newfstatat(4, "", [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(4, [pid 5050] getdents64(4, [pid 5048] getdents64(4, ./strace-static-x86_64: Process 5701 attached [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 112 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] getdents64(4, [pid 5048] getdents64(4, [pid 5050] getdents64(4, ./strace-static-x86_64: Process 5699 attached [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] close(4./strace-static-x86_64: Process 5700 attached [pid 5701] set_robust_list(0x5555566e0760, 24 [pid 5699] set_robust_list(0x5555566e0760, 24 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 106 [pid 5050] close(4 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5700] set_robust_list(0x5555566e0760, 24 [pid 5701] <... set_robust_list resumed>) = 0 [pid 5699] <... set_robust_list resumed>) = 0 [pid 5700] <... set_robust_list resumed>) = 0 [pid 5701] chdir("./104" [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 109 [pid 5048] rmdir("./102/file0" [pid 5699] chdir("./110" [pid 5049] close(4 [pid 5700] chdir("./107" [pid 5701] <... chdir resumed>) = 0 [pid 5700] <... chdir resumed>) = 0 [pid 5701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5699] <... chdir resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5699] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] rmdir("./102/file0" [pid 5049] rmdir("./105/file0" [pid 5048] getdents64(3, [pid 5700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5701] <... prctl resumed>) = 0 [pid 5699] <... prctl resumed>) = 0 [pid 5700] <... prctl resumed>) = 0 [pid 5701] setpgid(0, 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5700] setpgid(0, 0 [pid 5701] <... setpgid resumed>) = 0 [pid 5699] setpgid(0, 0 [pid 5700] <... setpgid resumed>) = 0 [pid 5701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5701] <... openat resumed>) = 3 [pid 5699] <... setpgid resumed>) = 0 [pid 5050] getdents64(3, [pid 5049] getdents64(3, [pid 5048] close(3 [pid 5700] <... openat resumed>) = 3 [pid 5699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5701] write(3, "1000", 4 [pid 5049] close(3 [pid 5701] <... write resumed>) = 4 [pid 5049] <... close resumed>) = 0 [pid 5701] close(3 [pid 5050] close(3 [pid 5700] write(3, "1000", 4 [pid 5701] <... close resumed>) = 0 [pid 5700] <... write resumed>) = 4 [pid 5700] close(3 [pid 5701] symlink("/dev/binderfs", "./binderfs" [pid 5050] <... close resumed>) = 0 [pid 5049] rmdir("./105" [pid 5048] rmdir("./102" [pid 5700] <... close resumed>) = 0 [pid 5701] <... symlink resumed>) = 0 [pid 5050] rmdir("./102" [pid 5700] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5701] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5048] <... rmdir resumed>) = 0 [pid 5701] <... socket resumed>) = 3 [pid 5050] mkdir("./103", 0777 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] mkdir("./103", 0777 [pid 5700] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5701] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5700] <... socket resumed>) = 3 [pid 5700] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5701] <... socket resumed>) = 4 [pid 5050] <... mkdir resumed>) = 0 [pid 5048] <... mkdir resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5700] <... socket resumed>) = 4 [pid 5701] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5699] <... openat resumed>) = 3 [pid 5050] <... openat resumed>) = 3 [pid 5049] mkdir("./106", 0777 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5700] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5701] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5699] write(3, "1000", 4 [pid 5700] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5701] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5700] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5701] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... mkdir resumed>) = 0 [pid 5700] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5701] memfd_create("syzkaller", 0 [pid 5699] <... write resumed>) = 4 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5048] <... openat resumed>) = 3 [pid 5700] memfd_create("syzkaller", 0 [pid 5699] close(3 [pid 5700] <... memfd_create resumed>) = 5 [pid 5701] <... memfd_create resumed>) = 5 [pid 5699] <... close resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5699] symlink("/dev/binderfs", "./binderfs" [pid 5050] close(3 [pid 5700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5700] <... mmap resumed>) = 0x7f1263f98000 [pid 5701] <... mmap resumed>) = 0x7f1263f98000 [pid 5050] <... close resumed>) = 0 [pid 5700] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5699] <... symlink resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] close(3 [pid 5700] mkdir("./file0", 000 [pid 5701] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5699] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5701] mkdir("./file0", 000 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5700] <... mkdir resumed>) = 0 [pid 5699] <... socket resumed>) = 3 [pid 5048] <... close resumed>) = 0 [pid 5701] <... mkdir resumed>) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5699] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5049] close(3 [pid 5700] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5701] symlink(NULL, NULL [pid 5049] <... close resumed>) = 0 [pid 5700] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5701] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5700] <... mount resumed>) = 0 [pid 5701] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5699] <... socket resumed>) = 4 [pid 5701] <... mount resumed>) = 0 [pid 5700] open(NULL, O_RDONLY [pid 5699] bpf(BPF_PROG_LOAD, NULL, 0) = -1 E2BIG (Argument list too long) [pid 5700] <... open resumed>) = -1 EFAULT (Bad address) [pid 5701] open(NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5700] close(3 [pid 5701] close(3 [pid 5700] <... close resumed>) = 0 [pid 5701] <... close resumed>) = 0 [pid 5700] close(4 [pid 5701] close(4 [pid 5700] <... close resumed>) = 0 [pid 5701] <... close resumed>) = 0 [pid 5701] close(5 [pid 5700] close(5) = 0 [pid 5701] <... close resumed>) = 0 [pid 5700] close(6) = -1 EBADF (Bad file descriptor) [pid 5701] close(6 [pid 5700] close(7) = -1 EBADF (Bad file descriptor) [pid 5700] close(8) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5700] close(9 [pid 5701] close(7 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5700] close(10 [pid 5701] close(8 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5700] close(11 [pid 5701] close(9 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5700] close(12) = -1 EBADF (Bad file descriptor) [pid 5701] close(10) = -1 EBADF (Bad file descriptor) [pid 5700] close(13 [pid 5701] close(11 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5700] close(14 [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] close(12 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5700] close(15 [pid 5701] close(13 [pid 5699] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 105 ./strace-static-x86_64: Process 5702 attached [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5700] close(16 [pid 5701] close(14) = -1 EBADF (Bad file descriptor) [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] close(15 [pid 5700] close(17 [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] set_robust_list(0x5555566e0760, 24 [pid 5699] <... bpf resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5703 attached [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] close(16 [pid 5703] set_robust_list(0x5555566e0760, 24 [pid 5700] close(18 [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] <... set_robust_list resumed>) = 0 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] close(17 [pid 5703] chdir("./103" [pid 5700] close(19 [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] <... chdir resumed>) = 0 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] close(18) = -1 EBADF (Bad file descriptor) [pid 5700] close(20 [pid 5701] close(19 [pid 5703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] <... prctl resumed>) = 0 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] close(20 [pid 5703] setpgid(0, 0 [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] <... setpgid resumed>) = 0 [pid 5700] close(21 [pid 5701] close(21 [pid 5703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5700] close(22 [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] <... openat resumed>) = 3 [pid 5702] <... set_robust_list resumed>) = 0 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] close(22 [pid 5699] memfd_create("syzkaller", 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 108 [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 105 [pid 5702] chdir("./103" [pid 5700] close(23 [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5704 attached [pid 5703] write(3, "1000", 4 [pid 5702] <... chdir resumed>) = 0 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] <... memfd_create resumed>) = 5 [pid 5704] set_robust_list(0x5555566e0760, 24 [pid 5703] <... write resumed>) = 4 [pid 5702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5700] close(24 [pid 5701] close(23 [pid 5699] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5704] <... set_robust_list resumed>) = 0 [pid 5703] close(3 [pid 5702] <... prctl resumed>) = 0 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] <... mmap resumed>) = 0x7f1263f98000 [pid 5703] <... close resumed>) = 0 [pid 5702] setpgid(0, 0 [pid 5700] close(25 [pid 5701] close(24 [pid 5704] chdir("./106" [pid 5703] symlink("/dev/binderfs", "./binderfs" [pid 5702] <... setpgid resumed>) = 0 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5704] <... chdir resumed>) = 0 [pid 5703] <... symlink resumed>) = 0 [pid 5702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5700] close(26 [pid 5701] close(25 [pid 5699] mkdir("./file0", 000 [pid 5704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5702] <... openat resumed>) = 3 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5704] <... prctl resumed>) = 0 [pid 5703] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5702] write(3, "1000", 4 [pid 5700] close(27 [pid 5701] close(26 [pid 5699] <... mkdir resumed>) = 0 [pid 5704] setpgid(0, 0 [pid 5703] <... socket resumed>) = 3 [pid 5702] <... write resumed>) = 4 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] symlink(NULL, NULL [pid 5704] <... setpgid resumed>) = 0 [pid 5702] close(3 [pid 5700] close(28 [pid 5701] close(27 [pid 5699] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5703] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5702] <... close resumed>) = 0 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5702] symlink("/dev/binderfs", "./binderfs" [pid 5703] <... socket resumed>) = 4 [pid 5702] <... symlink resumed>) = 0 [pid 5700] close(29 [pid 5701] close(28 [pid 5700] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] <... mount resumed>) = 0 [pid 5704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5703] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5702] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5700] exit_group(0 [pid 5701] close(29 [pid 5699] open(NULL, O_RDONLY [pid 5703] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5700] <... exit_group resumed>) = ? [pid 5701] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5704] <... openat resumed>) = 3 [pid 5703] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5702] <... socket resumed>) = 3 [pid 5701] exit_group(0 [pid 5699] <... open resumed>) = -1 EFAULT (Bad address) [pid 5704] write(3, "1000", 4 [pid 5703] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5702] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5700] +++ exited with 0 +++ [pid 5699] close(3 [pid 5704] <... write resumed>) = 4 [pid 5703] memfd_create("syzkaller", 0 [pid 5701] <... exit_group resumed>) = ? [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5704] close(3 [pid 5702] <... socket resumed>) = 4 [pid 5701] +++ exited with 0 +++ [pid 5699] <... close resumed>) = 0 [pid 5704] <... close resumed>) = 0 [pid 5703] <... memfd_create resumed>) = 5 [pid 5702] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5699] close(4 [pid 5704] symlink("/dev/binderfs", "./binderfs" [pid 5703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5699] <... close resumed>) = 0 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5703] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5051] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5053] <... restart_syscall resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5703] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5704] <... symlink resumed>) = 0 [pid 5702] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5699] close(5 [pid 5702] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5703] mkdir("./file0", 000 [pid 5702] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5699] <... close resumed>) = 0 [pid 5053] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(3, "", [pid 5704] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5703] <... mkdir resumed>) = 0 [pid 5702] memfd_create("syzkaller", 0 [pid 5699] close(6 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5704] <... socket resumed>) = 3 [pid 5699] close(7 [pid 5704] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... memfd_create resumed>) = 5 [pid 5704] <... socket resumed>) = 4 [pid 5053] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(3, [pid 5704] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5699] close(8 [pid 5053] <... openat resumed>) = 3 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5704] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5703] symlink(NULL, NULL [pid 5702] <... mmap resumed>) = 0x7f1263f98000 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5051] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5704] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5703] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5699] close(9 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5704] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5703] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5702] mkdir("./file0", 000 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5051] newfstatat(AT_FDCWD, "./107/binderfs", [pid 5704] memfd_create("syzkaller", 0 [pid 5703] <... mount resumed>) = 0 [pid 5699] close(10 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(11 [pid 5704] <... memfd_create resumed>) = 5 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] unlink("./107/binderfs" [pid 5704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5702] <... mkdir resumed>) = 0 [pid 5699] close(12 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... unlink resumed>) = 0 [pid 5703] open(NULL, O_RDONLY [pid 5053] newfstatat(AT_FDCWD, "./104/binderfs", [pid 5704] <... mmap resumed>) = 0x7f1263f98000 [pid 5703] <... open resumed>) = -1 EFAULT (Bad address) [pid 5702] symlink(NULL, NULL [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5704] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5703] close(3 [pid 5702] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5699] close(13 [pid 5053] unlink("./104/binderfs" [pid 5704] mkdir("./file0", 000 [pid 5703] <... close resumed>) = 0 [pid 5702] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... unlink resumed>) = 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5703] close(4 [pid 5699] close(14 [pid 5703] <... close resumed>) = 0 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] close(5 [pid 5702] <... mount resumed>) = 0 [pid 5699] close(15 [pid 5703] <... close resumed>) = 0 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5703] close(6 [pid 5699] close(16 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5704] <... mkdir resumed>) = 0 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] open(NULL, O_RDONLY [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./107/file0", [pid 5699] close(17 [pid 5703] close(7 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5704] symlink(NULL, NULL [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... open resumed>) = -1 EFAULT (Bad address) [pid 5699] close(18 [pid 5053] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5704] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5703] close(8 [pid 5702] close(3 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(19 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5704] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5702] <... close resumed>) = 0 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] close(9 [pid 5053] newfstatat(AT_FDCWD, "./104/file0", [pid 5051] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5704] <... mount resumed>) = 0 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(4 [pid 5699] close(20 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... openat resumed>) = 4 [pid 5703] close(10 [pid 5053] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] newfstatat(4, "", [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5704] open(NULL, O_RDONLY [pid 5703] close(11 [pid 5702] <... close resumed>) = 0 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] getdents64(4, [pid 5704] <... open resumed>) = -1 EFAULT (Bad address) [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(5 [pid 5699] close(21 [pid 5053] <... openat resumed>) = 4 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5704] close(3 [pid 5703] close(12 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = 0 [pid 5704] <... close resumed>) = 0 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(6 [pid 5699] close(22 [pid 5053] newfstatat(4, "", [pid 5703] close(13 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(4, [pid 5704] close(4) = 0 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(23 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5704] close(5 [pid 5703] close(14 [pid 5702] close(7 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5051] close(4 [pid 5704] <... close resumed>) = 0 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(24 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... close resumed>) = 0 [pid 5704] close(6 [pid 5703] close(15 [pid 5702] close(8 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./107/file0" [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(25 [pid 5053] getdents64(4, [pid 5051] <... rmdir resumed>) = 0 [pid 5703] close(16 [pid 5704] close(7 [pid 5702] close(9 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(26 [pid 5704] close(8 [pid 5702] close(10 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5704] close(9 [pid 5702] close(11 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5704] close(10 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5051] getdents64(3, [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] close(17 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(27 [pid 5053] close(4 [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5704] close(11 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(12 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] close(18 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(28 [pid 5053] rmdir("./104/file0" [pid 5051] close(3 [pid 5704] close(12 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(13 [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] close(19 [pid 5704] close(13 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] close(29 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] close(20 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./107" [pid 5704] close(14 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(14 [pid 5699] exit_group(0 [pid 5703] close(21 [pid 5053] getdents64(3, [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5703] close(22 [pid 5053] close(3 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5051] <... rmdir resumed>) = 0 [pid 5703] close(23 [pid 5053] rmdir("./104" [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] mkdir("./108", 0777 [pid 5703] close(24) = -1 EBADF (Bad file descriptor) [pid 5703] close(25) = -1 EBADF (Bad file descriptor) [pid 5703] close(26) = -1 EBADF (Bad file descriptor) [pid 5703] close(27) = -1 EBADF (Bad file descriptor) [pid 5703] close(28) = -1 EBADF (Bad file descriptor) [pid 5704] close(15 [pid 5703] close(29 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./105", 0777 [pid 5051] <... mkdir resumed>) = 0 [pid 5703] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(15 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5703] exit_group(0 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5699] <... exit_group resumed>) = ? [pid 5053] <... mkdir resumed>) = 0 [pid 5704] close(16 [pid 5703] <... exit_group resumed>) = ? [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5053] <... openat resumed>) = 3 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] close(3) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5704] close(17 [pid 5703] +++ exited with 0 +++ [pid 5702] close(16 [pid 5699] +++ exited with 0 +++ [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5053] close(3) = 0 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5704] close(18 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- ./strace-static-x86_64: Process 5705 attached [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 110 ./strace-static-x86_64: Process 5706 attached [pid 5705] set_robust_list(0x5555566e0760, 24 [pid 5706] set_robust_list(0x5555566e0760, 24 [pid 5705] <... set_robust_list resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 107 [pid 5706] <... set_robust_list resumed>) = 0 [pid 5702] close(17 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] chdir("./105" [pid 5704] close(19 [pid 5702] close(18 [pid 5706] <... chdir resumed>) = 0 [pid 5705] chdir("./108" [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5704] close(20 [pid 5702] close(19 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5705] <... chdir resumed>) = 0 [pid 5704] close(21 [pid 5706] <... prctl resumed>) = 0 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(20 [pid 5052] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5706] setpgid(0, 0 [pid 5705] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5704] close(22 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5706] <... setpgid resumed>) = 0 [pid 5705] <... prctl resumed>) = 0 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(21 [pid 5048] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5705] setpgid(0, 0 [pid 5704] close(23 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5705] <... setpgid resumed>) = 0 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(22 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5706] <... openat resumed>) = 3 [pid 5705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5704] close(24 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(23 [pid 5706] write(3, "1000", 4 [pid 5704] close(25 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... openat resumed>) = 3 [pid 5706] <... write resumed>) = 4 [pid 5705] <... openat resumed>) = 3 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(24 [pid 5052] newfstatat(3, "", [pid 5706] close(3 [pid 5704] close(26 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] newfstatat(3, "", [pid 5706] <... close resumed>) = 0 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(25 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5706] symlink("/dev/binderfs", "./binderfs" [pid 5705] write(3, "1000", 4 [pid 5704] close(27 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] <... symlink resumed>) = 0 [pid 5705] <... write resumed>) = 4 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(26 [pid 5052] getdents64(3, [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5704] close(28 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] getdents64(3, [pid 5706] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5705] close(3 [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(27 [pid 5052] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5705] <... close resumed>) = 0 [pid 5704] close(29 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5706] <... socket resumed>) = 3 [pid 5705] symlink("/dev/binderfs", "./binderfs" [pid 5704] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5702] close(28 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5706] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5705] <... symlink resumed>) = 0 [pid 5704] exit_group(0 [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./110/binderfs", [pid 5704] <... exit_group resumed>) = ? [pid 5702] close(29 [pid 5706] <... socket resumed>) = 4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5706] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5705] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5702] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./110/binderfs" [pid 5706] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5705] <... socket resumed>) = 3 [pid 5702] exit_group(0 [pid 5052] <... unlink resumed>) = 0 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5702] <... exit_group resumed>) = ? [pid 5052] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(AT_FDCWD, "./103/binderfs", [pid 5706] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5705] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5706] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5705] <... socket resumed>) = 4 [pid 5706] memfd_create("syzkaller", 0 [pid 5702] +++ exited with 0 +++ [pid 5706] <... memfd_create resumed>) = 5 [pid 5705] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5706] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5705] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... restart_syscall resumed>) = 0 [pid 5706] <... mmap resumed>) = 0x7f1263f98000 [pid 5705] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5052] <... umount2 resumed>) = 0 [pid 5048] unlink("./103/binderfs" [pid 5705] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5052] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5706] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5705] memfd_create("syzkaller", 0 [pid 5050] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./110/file0", [pid 5706] mkdir("./file0", 000 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5705] <... memfd_create resumed>) = 5 [pid 5706] <... mkdir resumed>) = 0 [pid 5705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... unlink resumed>) = 0 [pid 5052] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5705] <... mmap resumed>) = 0x7f1263f98000 [pid 5704] +++ exited with 0 +++ [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(3, "", [pid 5048] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5706] symlink(NULL, NULL [pid 5705] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5052] openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=108, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5706] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5705] mkdir("./file0", 000 [pid 5052] <... openat resumed>) = 4 [pid 5048] <... umount2 resumed>) = 0 [pid 5706] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5705] <... mkdir resumed>) = 0 [pid 5052] newfstatat(4, "", [pid 5050] getdents64(3, [pid 5048] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5706] <... mount resumed>) = 0 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5052] getdents64(4, [pid 5048] newfstatat(AT_FDCWD, "./103/file0", [pid 5705] symlink(NULL, NULL) = -1 EFAULT (Bad address) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5052] getdents64(4, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5706] open(NULL, O_RDONLY [pid 5705] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5049] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5706] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5706] close(3 [pid 5705] <... mount resumed>) = 0 [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(AT_FDCWD, "./103/binderfs", [pid 5049] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] close(4 [pid 5706] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5048] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] rmdir("./110/file0" [pid 5706] close(4 [pid 5705] open(NULL, O_RDONLY [pid 5048] <... openat resumed>) = 4 [pid 5705] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... rmdir resumed>) = 0 [pid 5048] newfstatat(4, "", [pid 5052] getdents64(3, [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] newfstatat(3, "", [pid 5706] <... close resumed>) = 0 [pid 5705] close(3 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5706] close(5 [pid 5705] <... close resumed>) = 0 [pid 5052] close(3 [pid 5048] getdents64(4, [pid 5050] unlink("./103/binderfs" [pid 5706] <... close resumed>) = 0 [pid 5706] close(6 [pid 5705] close(4 [pid 5052] <... close resumed>) = 0 [pid 5705] <... close resumed>) = 0 [pid 5052] rmdir("./110" [pid 5050] <... unlink resumed>) = 0 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(5 [pid 5706] close(7 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] <... close resumed>) = 0 [pid 5052] <... rmdir resumed>) = 0 [pid 5050] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(4, [pid 5706] close(8) = -1 EBADF (Bad file descriptor) [pid 5706] close(9 [pid 5705] close(6 [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... umount2 resumed>) = 0 [pid 5052] mkdir("./111", 0777 [pid 5048] close(4 [pid 5050] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] getdents64(3, [pid 5048] <... close resumed>) = 0 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] rmdir("./103/file0" [pid 5706] close(10 [pid 5705] close(7 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] close(11 [pid 5050] newfstatat(AT_FDCWD, "./103/file0", [pid 5049] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... rmdir resumed>) = 0 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(8 [pid 5706] close(12 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... mkdir resumed>) = 0 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(9 [pid 5050] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] getdents64(3, [pid 5706] close(13 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./106/binderfs", [pid 5706] close(14 [pid 5705] close(10 [pid 5052] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] close(3 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(11 [pid 5050] <... openat resumed>) = 4 [pid 5049] unlink("./106/binderfs" [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... close resumed>) = 0 [pid 5706] close(15 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] rmdir("./103" [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(12 [pid 5706] close(16 [pid 5052] close(3 [pid 5049] <... unlink resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] newfstatat(4, "", [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] close(17 [pid 5705] close(13 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... rmdir resumed>) = 0 [pid 5706] close(18 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(14 [pid 5049] <... umount2 resumed>) = 0 [pid 5706] close(19 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] mkdir("./104", 0777 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(15 [pid 5050] getdents64(4, [pid 5706] close(20 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... mkdir resumed>) = 0 [pid 5706] close(21 [pid 5705] close(16 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] close(22 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(17 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5049] newfstatat(AT_FDCWD, "./106/file0", [pid 5706] close(23 [pid 5050] getdents64(4, [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5706] close(24 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] close(4 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(18 [pid 5049] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5706] close(25 [pid 5050] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5707 attached [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./103/file0" [pid 5049] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... openat resumed>) = 3 [pid 5707] set_robust_list(0x5555566e0760, 24 [pid 5705] close(19 [pid 5706] close(26 [pid 5707] <... set_robust_list resumed>) = 0 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 113 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] <... openat resumed>) = 4 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(20 [pid 5707] chdir("./111" [pid 5706] close(27 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] getdents64(3, [pid 5049] newfstatat(4, "", [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(21 [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] close(3 [pid 5707] <... chdir resumed>) = 0 [pid 5706] close(28 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5049] getdents64(4, [pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(22 [pid 5048] <... close resumed>) = 0 [pid 5707] <... prctl resumed>) = 0 [pid 5706] close(29 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5707] setpgid(0, 0 [pid 5706] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5705] close(23 [pid 5707] <... setpgid resumed>) = 0 [pid 5706] exit_group(0 [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5705] close(24 [pid 5706] <... exit_group resumed>) = ? [pid 5705] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] rmdir("./103" [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5706] +++ exited with 0 +++ [pid 5705] close(25) = -1 EBADF (Bad file descriptor) [pid 5705] close(26) = -1 EBADF (Bad file descriptor) [pid 5705] close(27) = -1 EBADF (Bad file descriptor) [pid 5705] close(28) = -1 EBADF (Bad file descriptor) [pid 5705] close(29) = -1 EBADF (Bad file descriptor) [pid 5707] <... openat resumed>) = 3 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=107, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5705] exit_group(0) = ? [pid 5707] write(3, "1000", 4) = 4 [pid 5050] <... rmdir resumed>) = 0 [pid 5049] close(4 [pid 5707] close(3 [pid 5049] <... close resumed>) = 0 [pid 5707] <... close resumed>) = 0 [pid 5705] +++ exited with 0 +++ [pid 5050] mkdir("./104", 0777 [pid 5049] rmdir("./106/file0"./strace-static-x86_64: Process 5708 attached [pid 5707] symlink("/dev/binderfs", "./binderfs" [pid 5708] set_robust_list(0x5555566e0760, 24 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=110, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5707] <... symlink resumed>) = 0 [pid 5053] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5708] <... set_robust_list resumed>) = 0 [pid 5051] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... rmdir resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 106 [pid 5708] chdir("./104" [pid 5707] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... mkdir resumed>) = 0 [pid 5707] <... socket resumed>) = 3 [pid 5051] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5707] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5053] <... openat resumed>) = 3 [pid 5049] getdents64(3, [pid 5708] <... chdir resumed>) = 0 [pid 5707] <... socket resumed>) = 4 [pid 5053] newfstatat(3, "", [pid 5051] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5707] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5707] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5049] close(3 [pid 5707] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5707] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5053] getdents64(3, [pid 5051] newfstatat(3, "", [pid 5049] <... close resumed>) = 0 [pid 5708] <... prctl resumed>) = 0 [pid 5707] memfd_create("syzkaller", 0 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5049] rmdir("./106" [pid 5708] setpgid(0, 0 [pid 5053] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5708] <... setpgid resumed>) = 0 [pid 5051] getdents64(3, [pid 5708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5049] <... rmdir resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5708] <... openat resumed>) = 3 [pid 5707] <... memfd_create resumed>) = 5 [pid 5053] newfstatat(AT_FDCWD, "./105/binderfs", [pid 5051] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] mkdir("./107", 0777 [pid 5050] close(3 [pid 5707] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5708] write(3, "1000", 4 [pid 5707] <... mmap resumed>) = 0x7f1263f98000 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... close resumed>) = 0 [pid 5708] <... write resumed>) = 4 [pid 5707] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] newfstatat(AT_FDCWD, "./108/binderfs", [pid 5708] close(3 [pid 5707] mkdir("./file0", 000 [pid 5053] unlink("./105/binderfs" [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5708] <... close resumed>) = 0 [pid 5049] <... mkdir resumed>) = 0 [pid 5708] symlink("/dev/binderfs", "./binderfs" [pid 5051] unlink("./108/binderfs" [pid 5708] <... symlink resumed>) = 0 [pid 5051] <... unlink resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5708] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5053] <... unlink resumed>) = 0 [pid 5051] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5707] <... mkdir resumed>) = 0 [pid 5708] <... socket resumed>) = 3 [pid 5707] symlink(NULL, NULL [pid 5051] <... umount2 resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5053] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5707] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5708] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5707] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5708] <... socket resumed>) = 4 [pid 5053] <... umount2 resumed>) = 0 [pid 5708] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5051] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5708] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5707] <... mount resumed>) = 0 [pid 5051] newfstatat(AT_FDCWD, "./108/file0", [pid 5053] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5708] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] newfstatat(AT_FDCWD, "./105/file0", [pid 5707] open(NULL, O_RDONLY [pid 5049] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5709 attached [pid 5708] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5707] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 106 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5709] set_robust_list(0x5555566e0760, 24 [pid 5708] memfd_create("syzkaller", 0 [pid 5707] close(3 [pid 5053] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] close(3 [pid 5709] <... set_robust_list resumed>) = 0 [pid 5708] <... memfd_create resumed>) = 5 [pid 5707] <... close resumed>) = 0 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... close resumed>) = 0 [pid 5709] chdir("./104" [pid 5708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5707] close(4 [pid 5053] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5709] <... chdir resumed>) = 0 [pid 5708] <... mmap resumed>) = 0x7f1263f98000 [pid 5707] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 4 [pid 5051] <... openat resumed>) = 4 [pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5708] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5051] newfstatat(4, "", [pid 5709] <... prctl resumed>) = 0 [pid 5708] mkdir("./file0", 000 [pid 5707] close(5 [pid 5053] newfstatat(4, "", [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5709] setpgid(0, 0 [pid 5708] <... mkdir resumed>) = 0 [pid 5709] <... setpgid resumed>) = 0 [pid 5051] getdents64(4, [pid 5707] <... close resumed>) = 0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5707] close(6) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(4, [pid 5707] close(7 [pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5710 attached [pid 5709] <... openat resumed>) = 3 [pid 5708] symlink(NULL, NULL [pid 5707] close(8 [pid 5053] getdents64(4, [pid 5051] getdents64(4, [pid 5710] set_robust_list(0x5555566e0760, 24 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 109 [pid 5710] <... set_robust_list resumed>) = 0 [pid 5707] close(9 [pid 5053] close(4 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5710] chdir("./107" [pid 5709] write(3, "1000", 4 [pid 5708] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5707] close(10 [pid 5053] <... close resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5709] <... write resumed>) = 4 [pid 5708] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(4 [pid 5710] <... chdir resumed>) = 0 [pid 5707] close(11 [pid 5053] rmdir("./105/file0" [pid 5710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5709] close(3 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5710] <... prctl resumed>) = 0 [pid 5708] <... mount resumed>) = 0 [pid 5707] close(12) = -1 EBADF (Bad file descriptor) [pid 5707] close(13) = -1 EBADF (Bad file descriptor) [pid 5707] close(14 [pid 5710] setpgid(0, 0 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5710] <... setpgid resumed>) = 0 [pid 5707] close(15 [pid 5710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5707] close(16) = -1 EBADF (Bad file descriptor) [pid 5707] close(17 [pid 5710] <... openat resumed>) = 3 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5707] close(18) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5710] write(3, "1000", 4 [pid 5707] close(19 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5710] <... write resumed>) = 4 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5710] close(3 [pid 5707] close(20 [pid 5053] <... close resumed>) = 0 [pid 5710] <... close resumed>) = 0 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5710] symlink("/dev/binderfs", "./binderfs" [pid 5707] close(21 [pid 5053] rmdir("./105" [pid 5710] <... symlink resumed>) = 0 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5707] close(22) = -1 EBADF (Bad file descriptor) [pid 5707] close(23) = -1 EBADF (Bad file descriptor) [pid 5707] close(24) = -1 EBADF (Bad file descriptor) [pid 5707] close(25 [pid 5710] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5707] close(26 [pid 5710] <... socket resumed>) = 3 [pid 5709] <... close resumed>) = 0 [pid 5708] open(NULL, O_RDONLY [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] mkdir("./106", 0777 [pid 5051] rmdir("./108/file0" [pid 5710] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5709] symlink("/dev/binderfs", "./binderfs" [pid 5708] <... open resumed>) = -1 EFAULT (Bad address) [pid 5707] close(27 [pid 5053] <... mkdir resumed>) = 0 [pid 5710] <... socket resumed>) = 4 [pid 5708] close(3 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5710] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5707] close(28 [pid 5710] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5709] <... symlink resumed>) = 0 [pid 5710] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5709] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5708] <... close resumed>) = 0 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5710] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5708] close(4 [pid 5707] close(29 [pid 5710] memfd_create("syzkaller", 0 [pid 5709] <... socket resumed>) = 3 [pid 5707] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] <... rmdir resumed>) = 0 [pid 5710] <... memfd_create resumed>) = 5 [pid 5709] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5708] <... close resumed>) = 0 [pid 5707] exit_group(0 [pid 5053] <... openat resumed>) = 3 [pid 5051] getdents64(3, [pid 5710] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 [pid 5709] <... socket resumed>) = 4 [pid 5707] <... exit_group resumed>) = ? [pid 5710] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5709] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5708] close(5 [pid 5707] +++ exited with 0 +++ [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5710] mkdir("./file0", 000 [pid 5709] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5710] <... mkdir resumed>) = 0 [pid 5708] <... close resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=113, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] close(3 [pid 5709] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5708] close(6 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5053] close(3 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... close resumed>) = 0 [pid 5709] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5708] close(7 [pid 5053] <... close resumed>) = 0 [pid 5051] rmdir("./108" [pid 5710] symlink(NULL, NULL [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5710] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5709] memfd_create("syzkaller", 0 [pid 5710] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5709] <... memfd_create resumed>) = 5 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5708] close(8 [pid 5710] <... mount resumed>) = 0 [pid 5709] <... mmap resumed>) = 0x7f1263f98000 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] mkdir("./109", 0777 [pid 5709] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5708] close(9 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5710] open(NULL, O_RDONLY [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(3, "", [pid 5051] <... mkdir resumed>) = 0 [pid 5709] mkdir("./file0", 000 [pid 5708] close(10./strace-static-x86_64: Process 5711 attached [pid 5710] <... open resumed>) = -1 EFAULT (Bad address) [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5711] set_robust_list(0x5555566e0760, 24 [pid 5710] close(3 [pid 5709] <... mkdir resumed>) = 0 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 108 [pid 5052] getdents64(3, [pid 5711] <... set_robust_list resumed>) = 0 [pid 5710] <... close resumed>) = 0 [pid 5708] close(11 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5711] chdir("./106" [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5710] close(4 [pid 5052] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5710] <... close resumed>) = 0 [pid 5711] <... chdir resumed>) = 0 [pid 5710] close(5 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5710] <... close resumed>) = 0 [pid 5711] <... prctl resumed>) = 0 [pid 5710] close(6 [pid 5711] setpgid(0, 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./111/binderfs", [pid 5711] <... setpgid resumed>) = 0 [pid 5710] close(7 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] symlink(NULL, NULL [pid 5708] close(12 [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5710] close(8 [pid 5709] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] unlink("./111/binderfs" [pid 5711] <... openat resumed>) = 3 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5708] close(13 [pid 5051] <... openat resumed>) = 3 [pid 5710] close(9 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5711] write(3, "1000", 4 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(14 [pid 5052] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5711] <... write resumed>) = 4 [pid 5710] close(10 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(3 [pid 5711] close(3 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(15 [pid 5052] <... umount2 resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5711] <... close resumed>) = 0 [pid 5710] close(11 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5711] symlink("/dev/binderfs", "./binderfs" [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(16 [pid 5052] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5710] close(12 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(17 [pid 5052] newfstatat(AT_FDCWD, "./111/file0", [pid 5710] close(13 [pid 5709] <... mount resumed>) = 0 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] <... symlink resumed>) = 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] open(NULL, O_RDONLY [pid 5708] close(18 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5712 attached [pid 5711] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5710] close(14 [pid 5709] <... open resumed>) = -1 EFAULT (Bad address) [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5712] set_robust_list(0x5555566e0760, 24 [pid 5711] <... socket resumed>) = 3 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(3 [pid 5708] close(19 [pid 5052] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5710] close(15 [pid 5708] close(20 [pid 5052] openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 111 [pid 5709] <... close resumed>) = 0 [pid 5712] <... set_robust_list resumed>) = 0 [pid 5711] <... socket resumed>) = 4 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(4 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... openat resumed>) = 4 [pid 5712] chdir("./109" [pid 5708] close(21 [pid 5711] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5710] close(16 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(4, "", [pid 5712] <... chdir resumed>) = 0 [pid 5711] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] <... close resumed>) = 0 [pid 5708] close(22 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5711] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5710] close(17 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] <... prctl resumed>) = 0 [pid 5711] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(23 [pid 5052] getdents64(4, [pid 5712] setpgid(0, 0 [pid 5711] memfd_create("syzkaller", 0 [pid 5710] close(18 [pid 5709] close(5 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5712] <... setpgid resumed>) = 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(24 [pid 5712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5711] <... memfd_create resumed>) = 5 [pid 5710] close(19 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(4, [pid 5711] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5711] <... mmap resumed>) = 0x7f1263f98000 [pid 5710] close(20 [pid 5709] <... close resumed>) = 0 [pid 5708] close(25 [pid 5712] <... openat resumed>) = 3 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(6 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(4 [pid 5712] write(3, "1000", 4 [pid 5711] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5710] close(21 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(26 [pid 5052] <... close resumed>) = 0 [pid 5712] <... write resumed>) = 4 [pid 5711] mkdir("./file0", 000 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(7 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] close(3 [pid 5711] <... mkdir resumed>) = 0 [pid 5710] close(22 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(27 [pid 5052] rmdir("./111/file0" [pid 5709] close(8 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] <... close resumed>) = 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] close(28 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5710] close(23 [pid 5712] symlink("/dev/binderfs", "./binderfs" [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5712] <... symlink resumed>) = 0 [pid 5710] close(24 [pid 5712] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5711] symlink(NULL, NULL [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] getdents64(3, [pid 5712] <... socket resumed>) = 3 [pid 5711] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5710] close(25 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5711] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5710] close(26 [pid 5052] close(3 [pid 5712] <... socket resumed>) = 4 [pid 5711] <... mount resumed>) = 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(9 [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5710] close(27 [pid 5709] close(10 [pid 5708] close(29 [pid 5712] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5710] close(28 [pid 5052] <... close resumed>) = 0 [pid 5712] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5711] open(NULL, O_RDONLY [pid 5710] close(29 [pid 5052] rmdir("./111" [pid 5712] memfd_create("syzkaller", 0 [pid 5710] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] <... memfd_create resumed>) = 5 [pid 5711] <... open resumed>) = -1 EFAULT (Bad address) [pid 5710] exit_group(0 [pid 5709] close(11 [pid 5708] exit_group(0 [pid 5052] <... rmdir resumed>) = 0 [pid 5712] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5711] close(3 [pid 5710] <... exit_group resumed>) = ? [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5708] <... exit_group resumed>) = ? [pid 5712] <... mmap resumed>) = 0x7f1263f98000 [pid 5711] <... close resumed>) = 0 [pid 5710] +++ exited with 0 +++ [pid 5709] close(12 [pid 5708] +++ exited with 0 +++ [pid 5712] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5711] close(4 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] mkdir("./112", 0777 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5712] mkdir("./file0", 000 [pid 5711] <... close resumed>) = 0 [pid 5709] close(13) = -1 EBADF (Bad file descriptor) [pid 5709] close(14) = -1 EBADF (Bad file descriptor) [pid 5711] close(5 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5712] <... mkdir resumed>) = 0 [pid 5711] <... close resumed>) = 0 [pid 5052] <... mkdir resumed>) = 0 [pid 5048] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5712] symlink(NULL, NULL [pid 5711] close(6 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5048] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5712] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(15 [pid 5052] <... openat resumed>) = 3 [pid 5048] <... openat resumed>) = 3 [pid 5712] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5711] close(7 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] <... mount resumed>) = 0 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5049] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] newfstatat(3, "", [pid 5709] close(16 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(8 [pid 5052] close(3 [pid 5049] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] getdents64(3, [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(17 [pid 5052] <... close resumed>) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5712] open(NULL, O_RDONLY [pid 5711] close(9 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5712] <... open resumed>) = -1 EFAULT (Bad address) [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(18 [pid 5711] close(10 [pid 5049] newfstatat(3, "", [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, [pid 5712] close(3 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5048] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5712] <... close resumed>) = 0 [pid 5711] close(11 [pid 5049] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5709] close(19 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5712] close(4 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./107/binderfs", [pid 5048] newfstatat(AT_FDCWD, "./104/binderfs", ./strace-static-x86_64: Process 5713 attached [pid 5712] <... close resumed>) = 0 [pid 5711] close(12 [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5713] set_robust_list(0x5555566e0760, 24 [pid 5712] close(5 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(20 [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 114 [pid 5049] unlink("./107/binderfs" [pid 5048] unlink("./104/binderfs" [pid 5713] <... set_robust_list resumed>) = 0 [pid 5712] <... close resumed>) = 0 [pid 5711] close(13 [pid 5049] <... unlink resumed>) = 0 [pid 5048] <... unlink resumed>) = 0 [pid 5713] chdir("./112" [pid 5712] close(6 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5713] <... chdir resumed>) = 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(14 [pid 5709] close(21 [pid 5049] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5712] close(7 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5713] <... prctl resumed>) = 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(15 [pid 5048] <... umount2 resumed>) = 0 [pid 5713] setpgid(0, 0 [pid 5712] close(8 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = 0 [pid 5711] close(16 [pid 5713] <... setpgid resumed>) = 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(22 [pid 5049] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5712] close(9 [pid 5711] close(17 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(23 [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5713] <... openat resumed>) = 3 [pid 5712] close(10 [pid 5711] close(18 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] newfstatat(AT_FDCWD, "./107/file0", [pid 5048] newfstatat(AT_FDCWD, "./104/file0", [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(19 [pid 5709] close(24 [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5713] write(3, "1000", 4 [pid 5712] close(11 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5713] <... write resumed>) = 4 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(20 [pid 5048] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5713] close(3 [pid 5712] close(12 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(25 [pid 5049] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5713] <... close resumed>) = 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(21 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5713] symlink("/dev/binderfs", "./binderfs" [pid 5712] close(13 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(26 [pid 5049] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5048] <... openat resumed>) = 4 [pid 5713] <... symlink resumed>) = 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(22 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5712] close(14 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(27 [pid 5049] <... openat resumed>) = 4 [pid 5048] newfstatat(4, "", [pid 5713] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(23 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5713] <... socket resumed>) = 3 [pid 5712] close(15 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(28 [pid 5049] newfstatat(4, "", [pid 5048] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5713] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(24 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5713] <... socket resumed>) = 4 [pid 5712] close(16 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5709] close(29 [pid 5048] getdents64(4, [pid 5713] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(25 [pid 5709] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5713] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5712] close(17 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5713] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(26 [pid 5709] exit_group(0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] getdents64(4, [pid 5713] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5712] close(18 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] getdents64(4, [pid 5713] memfd_create("syzkaller", 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(27 [pid 5709] <... exit_group resumed>) = ? [pid 5048] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5712] close(19 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5713] <... memfd_create resumed>) = 5 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(28 [pid 5049] close(4 [pid 5048] close(4 [pid 5712] close(20 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] close(29 [pid 5713] <... mmap resumed>) = 0x7f1263f98000 [pid 5712] close(21 [pid 5711] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] rmdir("./107/file0" [pid 5048] rmdir("./104/file0" [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] exit_group(0 [pid 5049] <... rmdir resumed>) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5713] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5712] close(22 [pid 5711] <... exit_group resumed>) = ? [pid 5713] mkdir("./file0", 000) = 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5711] +++ exited with 0 +++ [pid 5709] +++ exited with 0 +++ [pid 5049] getdents64(3, [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=108, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5712] close(23 [pid 5048] getdents64(3, [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] close(3 [pid 5712] close(24 [pid 5053] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] <... close resumed>) = 0 [pid 5048] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5713] symlink(NULL, NULL [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] rmdir("./107" [pid 5713] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5712] close(25 [pid 5053] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... rmdir resumed>) = 0 [pid 5048] close(3 [pid 5713] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5050] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5712] close(26 [pid 5050] <... openat resumed>) = 3 [pid 5048] <... close resumed>) = 0 [pid 5053] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5053] getdents64(3, 0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5053] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5053] newfstatat(AT_FDCWD, "./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5053] unlink("./106/binderfs") = 0 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] mkdir("./108", 0777 [pid 5712] close(27 [pid 5050] newfstatat(3, "", [pid 5049] <... mkdir resumed>) = 0 [pid 5048] rmdir("./104" [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5048] <... rmdir resumed>) = 0 [pid 5712] close(28 [pid 5053] <... umount2 resumed>) = 0 [pid 5050] getdents64(3, [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5712] close(29 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5712] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(AT_FDCWD, "./106/file0", [pid 5048] mkdir("./105", 0777 [pid 5712] exit_group(0 [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5713] <... mount resumed>) = 0 [pid 5712] <... exit_group resumed>) = ? [pid 5053] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... openat resumed>) = 3 [pid 5712] +++ exited with 0 +++ [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(AT_FDCWD, "./104/binderfs", [pid 5049] ioctl(3, LOOP_CLR_FD [pid 5048] <... mkdir resumed>) = 0 [pid 5713] open(NULL, O_RDONLY [pid 5053] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5713] <... open resumed>) = -1 EFAULT (Bad address) [pid 5053] <... openat resumed>) = 4 [pid 5050] unlink("./104/binderfs" [pid 5049] close(3 [pid 5713] close(3 [pid 5050] <... unlink resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5713] <... close resumed>) = 0 [pid 5053] newfstatat(4, "", [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=111, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5048] <... openat resumed>) = 3 [pid 5713] close(4) = 0 [pid 5053] getdents64(4, [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5713] close(5 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5713] <... close resumed>) = 0 [pid 5053] getdents64(4, [pid 5048] close(3 [pid 5053] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5048] <... close resumed>) = 0 [pid 5053] close(4 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... close resumed>) = 0 [pid 5713] close(6 [pid 5053] rmdir("./106/file0" [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5713] close(7) = -1 EBADF (Bad file descriptor) [pid 5053] getdents64(3, [pid 5713] close(8 [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5713] close(9 [pid 5053] <... close resumed>) = 0 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5713] close(10) = -1 EBADF (Bad file descriptor) [pid 5713] close(11) = -1 EBADF (Bad file descriptor) [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5050] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5051] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5714 attached [pid 5713] close(12 [pid 5053] rmdir("./106" [pid 5049] <... clone resumed>, child_tidptr=0x5555566e0750) = 110 [pid 5714] set_robust_list(0x5555566e0760, 24 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... rmdir resumed>) = 0 [pid 5714] <... set_robust_list resumed>) = 0 [pid 5713] close(13 [pid 5714] chdir("./108" [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] <... clone resumed>, child_tidptr=0x5555566e0750) = 107 [pid 5713] close(14) = -1 EBADF (Bad file descriptor) [pid 5713] close(15 [pid 5714] <... chdir resumed>) = 0 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5715 attached [pid 5714] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5713] close(16 [pid 5051] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... umount2 resumed>) = 0 [pid 5714] <... prctl resumed>) = 0 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5715] set_robust_list(0x5555566e0760, 24 [pid 5714] setpgid(0, 0 [pid 5713] close(17 [pid 5053] mkdir("./107", 0777 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5715] <... set_robust_list resumed>) = 0 [pid 5714] <... setpgid resumed>) = 0 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... mkdir resumed>) = 0 [pid 5051] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5715] chdir("./105" [pid 5714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5713] close(18 [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... openat resumed>) = 3 [pid 5050] newfstatat(AT_FDCWD, "./104/file0", [pid 5715] <... chdir resumed>) = 0 [pid 5713] close(19 [pid 5051] newfstatat(3, "", [pid 5715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5714] <... openat resumed>) = 3 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5715] <... prctl resumed>) = 0 [pid 5713] close(20 [pid 5053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5715] setpgid(0, 0 [pid 5714] write(3, "1000", 4 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... openat resumed>) = 3 [pid 5715] <... setpgid resumed>) = 0 [pid 5714] <... write resumed>) = 4 [pid 5713] close(21 [pid 5051] getdents64(3, [pid 5050] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5714] close(3 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] ioctl(3, LOOP_CLR_FD [pid 5715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5714] <... close resumed>) = 0 [pid 5713] close(22 [pid 5053] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5050] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5714] symlink("/dev/binderfs", "./binderfs" [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] close(3 [pid 5715] <... openat resumed>) = 3 [pid 5714] <... symlink resumed>) = 0 [pid 5713] close(23 [pid 5051] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] <... openat resumed>) = 4 [pid 5715] write(3, "1000", 4 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... close resumed>) = 0 [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] newfstatat(4, "", [pid 5715] <... write resumed>) = 4 [pid 5714] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5713] close(24 [pid 5053] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] newfstatat(AT_FDCWD, "./109/binderfs", [pid 5715] close(3 [pid 5714] <... socket resumed>) = 3 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5051] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5715] <... close resumed>) = 0 [pid 5050] getdents64(4, [pid 5715] symlink("/dev/binderfs", "./binderfs" [pid 5051] unlink("./109/binderfs" [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5713] close(25) = -1 EBADF (Bad file descriptor) [pid 5713] close(26) = -1 EBADF (Bad file descriptor) [pid 5051] <... unlink resumed>) = 0 [pid 5050] getdents64(4, [pid 5713] close(27) = -1 EBADF (Bad file descriptor) [pid 5713] close(28) = -1 EBADF (Bad file descriptor) [pid 5715] <... symlink resumed>) = 0 [pid 5714] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5713] close(29 [pid 5050] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5714] <... socket resumed>) = 4 [pid 5713] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(4 [pid 5713] exit_group(0 [pid 5050] <... close resumed>) = 0 [pid 5051] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./104/file0" [pid 5714] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5713] <... exit_group resumed>) = ? [pid 5714] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5050] <... rmdir resumed>) = 0 [pid 5714] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5051] <... umount2 resumed>) = 0 [pid 5714] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5714] memfd_create("syzkaller", 0) = 5 [pid 5714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1263f98000 ./strace-static-x86_64: Process 5716 attached [pid 5714] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5714] mkdir("./file0", 000 [pid 5716] set_robust_list(0x5555566e0760, 24) = 0 [pid 5715] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5714] <... mkdir resumed>) = 0 [pid 5053] <... clone resumed>, child_tidptr=0x5555566e0750) = 109 [pid 5051] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] getdents64(3, [pid 5716] chdir("./107" [pid 5715] <... socket resumed>) = 3 [pid 5713] +++ exited with 0 +++ [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=114, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5051] newfstatat(AT_FDCWD, "./109/file0", [pid 5050] close(3 [pid 5716] <... chdir resumed>) = 0 [pid 5716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5715] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5714] symlink(NULL, NULL [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5050] <... close resumed>) = 0 [pid 5716] <... prctl resumed>) = 0 [pid 5715] <... socket resumed>) = 4 [pid 5714] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5051] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5050] rmdir("./104" [pid 5716] setpgid(0, 0 [pid 5714] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5716] <... setpgid resumed>) = 0 [pid 5716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5714] <... mount resumed>) = 0 [pid 5716] <... openat resumed>) = 3 [pid 5052] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5714] open(NULL, O_RDONLY [pid 5052] <... openat resumed>) = 3 [pid 5714] <... open resumed>) = -1 EFAULT (Bad address) [pid 5714] close(3 [pid 5052] newfstatat(3, "", [pid 5714] <... close resumed>) = 0 [pid 5716] write(3, "1000", 4 [pid 5714] close(4 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5050] <... rmdir resumed>) = 0 [pid 5716] <... write resumed>) = 4 [pid 5714] <... close resumed>) = 0 [pid 5052] getdents64(3, [pid 5051] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5050] mkdir("./105", 0777 [pid 5716] close(3 [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5716] <... close resumed>) = 0 [pid 5714] close(5 [pid 5716] symlink("/dev/binderfs", "./binderfs" [pid 5714] <... close resumed>) = 0 [pid 5052] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5714] close(6 [pid 5716] <... symlink resumed>) = 0 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] newfstatat(AT_FDCWD, "./112/binderfs", [pid 5716] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5714] close(7 [pid 5052] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5716] <... socket resumed>) = 3 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5714] close(8 [pid 5052] unlink("./112/binderfs" [pid 5716] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... unlink resumed>) = 0 [pid 5716] <... socket resumed>) = 4 [pid 5714] close(9) = -1 EBADF (Bad file descriptor) [pid 5714] close(10) = -1 EBADF (Bad file descriptor) [pid 5716] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5714] close(11 [pid 5716] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5716] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5714] close(12 [pid 5716] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5716] memfd_create("syzkaller", 0 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... umount2 resumed>) = 0 [pid 5052] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] newfstatat(AT_FDCWD, "./112/file0", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5051] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... mkdir resumed>) = 0 [pid 5052] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5052] openat(AT_FDCWD, "./112/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5052] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(4, [pid 5051] <... openat resumed>) = 4 [pid 5715] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5051] newfstatat(4, "", [pid 5052] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(4, 0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5052] close(4) = 0 [pid 5714] close(13 [pid 5052] rmdir("./112/file0") = 0 [pid 5716] <... memfd_create resumed>) = 5 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5714] close(14) = -1 EBADF (Bad file descriptor) [pid 5050] <... openat resumed>) = 3 [pid 5051] getdents64(4, [pid 5715] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5714] close(15 [pid 5052] getdents64(3, [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5716] <... mmap resumed>) = 0x7f1263f98000 [pid 5714] close(16 [pid 5052] close(3 [pid 5716] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... close resumed>) = 0 [pid 5714] close(17 [pid 5052] rmdir("./112" [pid 5715] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] <... rmdir resumed>) = 0 [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5715] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5714] close(18 [pid 5051] getdents64(4, [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5714] close(19 [pid 5715] memfd_create("syzkaller", 0 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5714] close(20 [pid 5052] mkdir("./113", 0777 [pid 5716] mkdir("./file0", 000 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] close(4 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5716] <... mkdir resumed>) = 0 [pid 5715] <... memfd_create resumed>) = 5 [pid 5716] symlink(NULL, NULL [pid 5715] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5714] close(21 [pid 5052] <... mkdir resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] close(3 [pid 5715] <... mmap resumed>) = 0x7f1263f98000 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] rmdir("./109/file0" [pid 5716] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5715] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5714] close(22 [pid 5050] <... close resumed>) = 0 [pid 5716] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5715] mkdir("./file0", 000 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5716] <... mount resumed>) = 0 [pid 5714] close(23 [pid 5052] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] getdents64(3, [pid 5714] close(24 [pid 5052] <... openat resumed>) = 3 [pid 5715] <... mkdir resumed>) = 0 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] <... getdents64 resumed>0x5555566e17f0 /* 0 entries */, 32768) = 0 [pid 5714] close(25 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] close(3 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5052] close(3./strace-static-x86_64: Process 5717 attached [pid 5714] close(26 [pid 5052] <... close resumed>) = 0 [pid 5051] <... close resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x5555566e0750) = 107 [pid 5716] open(NULL, O_RDONLY [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5717] set_robust_list(0x5555566e0760, 24 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5717] <... set_robust_list resumed>) = 0 [pid 5716] <... open resumed>) = -1 EFAULT (Bad address) [pid 5715] symlink(NULL, NULL [pid 5714] close(27 [pid 5051] rmdir("./109" [pid 5716] close(3) = 0 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5716] close(4 [pid 5714] close(28 [pid 5716] <... close resumed>) = 0 [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... rmdir resumed>) = 0 [pid 5716] close(5 [pid 5714] close(29 [pid 5716] <... close resumed>) = 0 [pid 5715] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5714] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5718 attached [pid 5717] chdir("./105" [pid 5716] close(6 [pid 5715] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5714] exit_group(0 [pid 5051] mkdir("./110", 0777 [pid 5718] set_robust_list(0x5555566e0760, 24 [pid 5717] <... chdir resumed>) = 0 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5718] <... set_robust_list resumed>) = 0 [pid 5717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5716] close(7 [pid 5714] <... exit_group resumed>) = ? [pid 5052] <... clone resumed>, child_tidptr=0x5555566e0750) = 115 [pid 5718] chdir("./113" [pid 5717] <... prctl resumed>) = 0 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5717] setpgid(0, 0 [pid 5716] close(8) = -1 EBADF (Bad file descriptor) [pid 5718] <... chdir resumed>) = 0 [pid 5716] close(9 [pid 5715] <... mount resumed>) = 0 [pid 5718] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5718] <... prctl resumed>) = 0 [pid 5717] <... setpgid resumed>) = 0 [pid 5716] close(10 [pid 5718] setpgid(0, 0 [pid 5717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5718] <... setpgid resumed>) = 0 [pid 5717] <... openat resumed>) = 3 [pid 5716] close(11 [pid 5715] open(NULL, O_RDONLY [pid 5051] <... mkdir resumed>) = 0 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5716] close(12 [pid 5717] write(3, "1000", 4 [pid 5715] <... open resumed>) = -1 EFAULT (Bad address) [pid 5051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5718] <... openat resumed>) = 3 [pid 5717] <... write resumed>) = 4 [pid 5716] close(13 [pid 5715] close(3 [pid 5714] +++ exited with 0 +++ [pid 5051] <... openat resumed>) = 3 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=110, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5718] write(3, "1000", 4) = 4 [pid 5717] close(3 [pid 5716] close(14 [pid 5715] <... close resumed>) = 0 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5718] close(3 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5718] <... close resumed>) = 0 [pid 5716] close(15 [pid 5049] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5718] symlink("/dev/binderfs", "./binderfs" [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5718] <... symlink resumed>) = 0 [pid 5716] close(16 [pid 5049] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... openat resumed>) = 3 [pid 5718] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5716] close(17 [pid 5049] newfstatat(3, "", [pid 5718] <... socket resumed>) = 3 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5716] close(18) = -1 EBADF (Bad file descriptor) [pid 5718] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5716] close(19 [pid 5049] getdents64(3, [pid 5718] <... socket resumed>) = 4 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5716] close(20) = -1 EBADF (Bad file descriptor) [pid 5717] <... close resumed>) = 0 [pid 5716] close(21 [pid 5718] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5717] symlink("/dev/binderfs", "./binderfs" [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5715] close(4 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5049] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5718] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5716] close(22 [pid 5715] <... close resumed>) = 0 [pid 5051] close(3 [pid 5718] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5718] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5717] <... symlink resumed>) = 0 [pid 5716] close(23 [pid 5051] <... close resumed>) = 0 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5718] memfd_create("syzkaller", 0 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5717] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5715] close(5 [pid 5716] close(24 [pid 5049] newfstatat(AT_FDCWD, "./108/binderfs", [pid 5718] <... memfd_create resumed>) = 5 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5716] close(25 [pid 5049] unlink("./108/binderfs" [pid 5718] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... unlink resumed>) = 0 [pid 5716] close(26 [pid 5715] <... close resumed>) = 0 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5716] close(27) = -1 EBADF (Bad file descriptor) [pid 5716] close(28 [pid 5049] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5717] <... socket resumed>) = 3 [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5715] close(6 [pid 5718] <... mmap resumed>) = 0x7f1263f98000 [pid 5716] close(29 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5718] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5716] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5715] close(7 [pid 5049] <... umount2 resumed>) = 0 [pid 5718] mkdir("./file0", 000 [pid 5716] exit_group(0 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5719 attached [pid 5718] <... mkdir resumed>) = 0 [pid 5717] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5716] <... exit_group resumed>) = ? [pid 5715] close(8 [pid 5719] set_robust_list(0x5555566e0760, 24 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5719] <... set_robust_list resumed>) = 0 [pid 5717] <... socket resumed>) = 4 [pid 5715] close(9 [pid 5051] <... clone resumed>, child_tidptr=0x5555566e0750) = 112 [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5719] chdir("./110" [pid 5717] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5715] close(10) = -1 EBADF (Bad file descriptor) [pid 5715] close(11) = -1 EBADF (Bad file descriptor) [pid 5717] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5715] close(12 [pid 5719] <... chdir resumed>) = 0 [pid 5718] symlink(NULL, NULL [pid 5717] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5715] close(13 [pid 5719] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5718] <... symlink resumed>) = -1 EFAULT (Bad address) [pid 5717] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5719] <... prctl resumed>) = 0 [pid 5718] mount(NULL, "./file0", "sysfs", 0, NULL [pid 5715] close(14 [pid 5049] newfstatat(AT_FDCWD, "./108/file0", [pid 5719] setpgid(0, 0 [pid 5718] <... mount resumed>) = 0 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5719] <... setpgid resumed>) = 0 [pid 5715] close(15 [pid 5049] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5049] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5719] <... openat resumed>) = 3 [pid 5718] open(NULL, O_RDONLY [pid 5717] memfd_create("syzkaller", 0 [pid 5716] +++ exited with 0 +++ [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5049] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5718] <... open resumed>) = -1 EFAULT (Bad address) [pid 5049] <... openat resumed>) = 4 [pid 5718] close(3 [pid 5053] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=109, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5715] close(16 [pid 5718] <... close resumed>) = 0 [pid 5717] <... memfd_create resumed>) = 5 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] restart_syscall(<... resuming interrupted clone ...> [pid 5719] write(3, "1000", 4 [pid 5718] close(4 [pid 5715] close(17 [pid 5053] <... restart_syscall resumed>) = 0 [pid 5718] <... close resumed>) = 0 [pid 5717] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5719] <... write resumed>) = 4 [pid 5717] <... mmap resumed>) = 0x7f1263f98000 [pid 5715] close(18 [pid 5049] newfstatat(4, "", [pid 5719] close(3 [pid 5718] close(5 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5719] <... close resumed>) = 0 [pid 5718] <... close resumed>) = 0 [pid 5715] close(19 [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5719] symlink("/dev/binderfs", "./binderfs" [pid 5718] close(6 [pid 5717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x2} --- [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5049] getdents64(4, [pid 5719] <... symlink resumed>) = 0 [pid 5718] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5715] close(20 [pid 5053] <... openat resumed>) = 3 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 2 entries */, 32768) = 48 [pid 5719] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP [pid 5718] close(7 [pid 5717] mkdir("./file0", 000 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] newfstatat(3, "", [pid 5049] getdents64(4, [pid 5719] <... socket resumed>) = 3 [pid 5718] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... getdents64 resumed>0x5555566e9830 /* 0 entries */, 32768) = 0 [pid 5719] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5718] close(8 [pid 5715] close(21 [pid 5053] getdents64(3, [pid 5049] close(4 [pid 5719] <... socket resumed>) = 4 [pid 5718] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5717] <... mkdir resumed>) = 0 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... getdents64 resumed>0x5555566e17f0 /* 4 entries */, 32768) = 112 [pid 5718] close(9 [pid 5053] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5718] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5049] <... close resumed>) = 0 [pid 5053] newfstatat(AT_FDCWD, "./107/binderfs", [pid 5049] rmdir("./108/file0" [pid 5719] bpf(BPF_PROG_LOAD, NULL, 0 [pid 5718] close(10 [pid 5717] symlink(NULL, NULL [pid 5715] close(22 [pid 5053] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5049] <... rmdir resumed>) = 0 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] unlink("./107/binderfs" [pid 5715] close(23) = -1 EBADF (Bad file descriptor) [pid 5719] <... bpf resumed>) = -1 E2BIG (Argument list too long) [pid 5718] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5715] close(24 [pid 5053] <... unlink resumed>) = 0 [pid 5719] bpf(BPF_RAW_TRACEPOINT_OPEN, NULL, 0 [pid 5718] close(11 [pid 5715] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5717] <... symlink resumed>) = -1 EFAULT (Bad address) [ 115.906638][ T5717] ================================================================== [ 115.914753][ T5717] BUG: KASAN: slab-use-after-free in kernfs_test_super+0x122/0x150 [ 115.922683][ T5717] Read of size 8 at addr ffff88807249d808 by task syz-executor493/5717 [ 115.930950][ T5717] [ 115.933366][ T5717] CPU: 1 PID: 5717 Comm: syz-executor493 Not tainted 6.5.0-rc7-next-20230822-syzkaller #0 [ 115.943438][ T5717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 115.953529][ T5717] Call Trace: [ 115.956831][ T5717] [ 115.959871][ T5717] dump_stack_lvl+0xd9/0x1b0 [ 115.964489][ T5717] print_report+0xc4/0x620 [ 115.968947][ T5717] ? __virt_addr_valid+0x5e/0x2d0 [ 115.973992][ T5717] ? __phys_addr+0xc6/0x140 [ 115.978516][ T5717] kasan_report+0xda/0x110 [ 115.982943][ T5717] ? kernfs_test_super+0x122/0x150 [ 115.988100][ T5717] ? kernfs_test_super+0x122/0x150 [ 115.993519][ T5717] ? kernfs_encode_fh+0x130/0x130 [ 115.998761][ T5717] kernfs_test_super+0x122/0x150 [ 116.003748][ T5717] ? kernfs_encode_fh+0x130/0x130 [ 116.008822][ T5717] sget_fc+0x582/0x9b0 [ 116.012921][ T5717] ? kernfs_statfs+0x130/0x130 [ 116.017737][ T5717] kernfs_get_tree+0x198/0x9a0 [ 116.022559][ T5717] ? bpf_lsm_capable+0x9/0x10 [ 116.027711][ T5717] sysfs_get_tree+0x41/0x140 [ 116.032337][ T5717] vfs_get_tree+0x8c/0x370 [ 116.036808][ T5717] path_mount+0x1492/0x1ed0 [ 116.041347][ T5717] ? kmem_cache_free+0xf0/0x480 [ 116.046237][ T5717] ? finish_automount+0xa50/0xa50 [ 116.051296][ T5717] ? putname+0x101/0x140 [ 116.055589][ T5717] __x64_sys_mount+0x293/0x310 [ 116.060387][ T5717] ? copy_mnt_ns+0xb60/0xb60 [ 116.065027][ T5717] ? _raw_spin_unlock_irq+0x2e/0x50 [ 116.073559][ T5717] ? ptrace_notify+0xf4/0x130 [ 116.078257][ T5717] do_syscall_64+0x38/0xb0 [ 116.082806][ T5717] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 116.088955][ T5717] RIP: 0033:0x7f126c3d79c9 [ 116.093564][ T5717] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 116.113385][ T5717] RSP: 002b:00007fff40e973e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 116.121816][ T5717] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f126c3d79c9 [ 116.129887][ T5717] RDX: 0000000020000300 RSI: 0000000020000080 RDI: 0000000000000000 [ 116.137882][ T5717] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff40e9741c [ 116.145862][ T5717] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff40e9741c [ 116.153843][ T5717] R13: 0000000000000069 R14: 431bde82d7b634db R15: 00007fff40e97450 [ 116.161836][ T5717] [ 116.164862][ T5717] [ 116.167271][ T5717] Allocated by task 5716: [ 116.171599][ T5717] kasan_save_stack+0x33/0x50 [ 116.176309][ T5717] kasan_set_track+0x25/0x30 [ 116.180936][ T5717] __kasan_kmalloc+0xa2/0xb0 [ 116.185737][ T5717] kernfs_get_tree+0x78/0x9a0 [ 116.190537][ T5717] sysfs_get_tree+0x41/0x140 [ 116.195331][ T5717] vfs_get_tree+0x8c/0x370 [ 116.199784][ T5717] path_mount+0x1492/0x1ed0 [ 116.204314][ T5717] __x64_sys_mount+0x293/0x310 [ 116.209099][ T5717] do_syscall_64+0x38/0xb0 [ 116.213531][ T5717] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 116.219448][ T5717] [ 116.221780][ T5717] Freed by task 5053: [ 116.225761][ T5717] kasan_save_stack+0x33/0x50 [ 116.230460][ T5717] kasan_set_track+0x25/0x30 [ 116.235176][ T5717] kasan_save_free_info+0x2b/0x40 [ 116.240213][ T5717] ____kasan_slab_free+0x15b/0x1b0 [ 116.245347][ T5717] slab_free_freelist_hook+0x114/0x1e0 [ 116.250829][ T5717] __kmem_cache_free+0xb8/0x2f0 [ 116.255766][ T5717] sysfs_kill_sb+0x21/0x30 [ 116.260196][ T5717] deactivate_locked_super+0xa0/0x2d0 [ 116.265586][ T5717] deactivate_super+0xde/0x100 [ 116.270454][ T5717] cleanup_mnt+0x222/0x3d0 [ 116.274886][ T5717] task_work_run+0x14d/0x240 [ 116.279496][ T5717] ptrace_notify+0x10c/0x130 [ 116.284105][ T5717] syscall_exit_to_user_mode_prepare+0x120/0x220 [ 116.292002][ T5717] syscall_exit_to_user_mode+0xd/0x60 [ 116.297770][ T5717] do_syscall_64+0x44/0xb0 [ 116.302213][ T5717] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 116.308223][ T5717] [ 116.310548][ T5717] The buggy address belongs to the object at ffff88807249d800 [ 116.310548][ T5717] which belongs to the cache kmalloc-64 of size 64 [ 116.324620][ T5717] The buggy address is located 8 bytes inside of [ 116.324620][ T5717] freed 64-byte region [ffff88807249d800, ffff88807249d840) [ 116.338167][ T5717] [ 116.340492][ T5717] The buggy address belongs to the physical page: [ 116.346905][ T5717] page:ffffea0001c92740 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7249d [ 116.357093][ T5717] anon flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff) [ 116.365169][ T5717] page_type: 0xffffffff() [ 116.369506][ T5717] raw: 00fff00000000800 ffff888012c41640 ffffea0000a28500 dead000000000005 [ 116.378175][ T5717] raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 [ 116.386874][ T5717] page dumped because: kasan: bad access detected [ 116.393381][ T5717] page_owner tracks the page as allocated [ 116.399149][ T5717] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 4493, tgid 4493 (udevd), ts 94419071514, free_ts 94405327131 [ 116.417325][ T5717] post_alloc_hook+0x2cf/0x340 [ 116.422121][ T5717] get_page_from_freelist+0x10d7/0x31b0 [ 116.427690][ T5717] __alloc_pages+0x1d0/0x4a0 [ 116.432293][ T5717] alloc_pages+0x1a9/0x270 [ 116.436733][ T5717] allocate_slab+0x251/0x380 [ 116.441345][ T5717] ___slab_alloc+0x8be/0x1570 [ 116.446048][ T5717] __slab_alloc.constprop.0+0x56/0xa0 [ 116.451468][ T5717] __kmem_cache_alloc_node+0x137/0x350 [ 116.456955][ T5717] __kmalloc+0x4f/0x100 [ 116.461149][ T5717] tomoyo_encode2+0x100/0x3d0 [ 116.465871][ T5717] tomoyo_encode+0x29/0x50 [ 116.470302][ T5717] tomoyo_realpath_from_path+0x196/0x710 [ 116.476488][ T5717] tomoyo_path_perm+0x271/0x450 [ 116.481353][ T5717] security_inode_getattr+0xf1/0x150 [ 116.486661][ T5717] vfs_statx+0x180/0x430 [ 116.490933][ T5717] vfs_fstatat+0x90/0xb0 [ 116.495204][ T5717] page last free stack trace: [ 116.499879][ T5717] free_unref_page_prepare+0x476/0xa40 [ 116.505358][ T5717] free_unref_page+0x33/0x3b0 [ 116.510039][ T5717] __mmdrop+0xd7/0x490 [ 116.514116][ T5717] __mmput+0x409/0x4d0 [ 116.518191][ T5717] mmput+0x62/0x70 [ 116.521920][ T5717] do_exit+0x9b4/0x2a20 [ 116.526100][ T5717] do_group_exit+0xd4/0x2a0 [ 116.530628][ T5717] __x64_sys_exit_group+0x3e/0x50 [ 116.535689][ T5717] do_syscall_64+0x38/0xb0 [ 116.540122][ T5717] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 116.546043][ T5717] [ 116.548367][ T5717] Memory state around the buggy address: [ 116.553999][ T5717] ffff88807249d700: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 116.562065][ T5717] ffff88807249d780: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 116.570132][ T5717] >ffff88807249d800: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 116.578192][ T5717] ^ [ 116.582522][ T5717] ffff88807249d880: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 116.590598][ T5717] ffff88807249d900: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 116.598672][ T5717] ================================================================== [ 116.607394][ T5717] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 116.614594][ T5717] CPU: 1 PID: 5717 Comm: syz-executor493 Not tainted 6.5.0-rc7-next-20230822-syzkaller #0 [ 116.624492][ T5717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 116.634552][ T5717] Call Trace: [ 116.637832][ T5717] [ 116.640766][ T5717] dump_stack_lvl+0xd9/0x1b0 [ 116.645383][ T5717] panic+0x6a6/0x750 [ 116.649290][ T5717] ? panic_smp_self_stop+0xa0/0xa0 [ 116.654416][ T5717] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 116.660411][ T5717] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 116.666594][ T5717] check_panic_on_warn+0xab/0xb0 [ 116.671556][ T5717] end_report+0x108/0x150 [ 116.675898][ T5717] kasan_report+0xea/0x110 [ 116.680323][ T5717] ? kernfs_test_super+0x122/0x150 [ 116.685461][ T5717] ? kernfs_test_super+0x122/0x150 [ 116.690603][ T5717] ? kernfs_encode_fh+0x130/0x130 [ 116.695667][ T5717] kernfs_test_super+0x122/0x150 [ 116.700633][ T5717] ? kernfs_encode_fh+0x130/0x130 [ 116.705692][ T5717] sget_fc+0x582/0x9b0 [ 116.709781][ T5717] ? kernfs_statfs+0x130/0x130 [ 116.714594][ T5717] kernfs_get_tree+0x198/0x9a0 [ 116.719384][ T5717] ? bpf_lsm_capable+0x9/0x10 [ 116.724074][ T5717] sysfs_get_tree+0x41/0x140 [ 116.728677][ T5717] vfs_get_tree+0x8c/0x370 [ 116.733113][ T5717] path_mount+0x1492/0x1ed0 [ 116.737648][ T5717] ? kmem_cache_free+0xf0/0x480 [ 116.742534][ T5717] ? finish_automount+0xa50/0xa50 [ 116.747584][ T5717] ? putname+0x101/0x140 [ 116.751851][ T5717] __x64_sys_mount+0x293/0x310 [ 116.756639][ T5717] ? copy_mnt_ns+0xb60/0xb60 [ 116.761255][ T5717] ? _raw_spin_unlock_irq+0x2e/0x50 [ 116.766473][ T5717] ? ptrace_notify+0xf4/0x130 [ 116.771167][ T5717] do_syscall_64+0x38/0xb0 [ 116.775607][ T5717] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 116.781527][ T5717] RIP: 0033:0x7f126c3d79c9 [ 116.785958][ T5717] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 116.805575][ T5717] RSP: 002b:00007fff40e973e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 116.813996][ T5717] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f126c3d79c9 [ 116.821991][ T5717] RDX: 0000000020000300 RSI: 0000000020000080 RDI: 0000000000000000 [ 116.829988][ T5717] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff40e9741c [ 116.837973][ T5717] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff40e9741c [ 116.845953][ T5717] R13: 0000000000000069 R14: 431bde82d7b634db R15: 00007fff40e97450 [ 116.853952][ T5717] [ 116.857285][ T5717] Kernel Offset: disabled [ 116.861611][ T5717] Rebooting in 86400 seconds..