./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3371634601 <...> Warning: Permanently added '10.128.10.12' (ED25519) to the list of known hosts. execve("./syz-executor3371634601", ["./syz-executor3371634601"], 0x7fff6fb96650 /* 10 vars */) = 0 brk(NULL) = 0x55556ded7000 brk(0x55556ded7d00) = 0x55556ded7d00 arch_prctl(ARCH_SET_FS, 0x55556ded7380) = 0 set_tid_address(0x55556ded7650) = 5822 set_robust_list(0x55556ded7660, 24) = 0 rseq(0x55556ded7ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3371634601", 4096) = 28 getrandom("\xf0\xbb\x7d\x65\xdc\x49\xa9\xc4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556ded7d00 brk(0x55556def8d00) = 0x55556def8d00 brk(0x55556def9000) = 0x55556def9000 mprotect(0x7f3c7c41d000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5824 attached , child_tidptr=0x55556ded7650) = 5824 [pid 5824] set_robust_list(0x55556ded7660, 24 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5824] <... set_robust_list resumed>) = 0 [pid 5824] mkdir("./syzkaller.0eHcog", 0700./strace-static-x86_64: Process 5825 attached [pid 5825] set_robust_list(0x55556ded7660, 24 [pid 5822] <... clone resumed>, child_tidptr=0x55556ded7650) = 5825 [pid 5825] <... set_robust_list resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5825] mkdir("./syzkaller.5PRz2m", 0700 [pid 5824] <... mkdir resumed>) = 0 [pid 5825] <... mkdir resumed>) = 0 [pid 5824] chmod("./syzkaller.0eHcog", 0777 [pid 5825] chmod("./syzkaller.5PRz2m", 0777 [pid 5824] <... chmod resumed>) = 0 ./strace-static-x86_64: Process 5826 attached [pid 5825] <... chmod resumed>) = 0 [pid 5824] chdir("./syzkaller.0eHcog" [pid 5826] set_robust_list(0x55556ded7660, 24 [pid 5824] <... chdir resumed>) = 0 [pid 5822] <... clone resumed>, child_tidptr=0x55556ded7650) = 5826 [pid 5825] chdir("./syzkaller.5PRz2m" [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5826] <... set_robust_list resumed>) = 0 [pid 5825] <... chdir resumed>) = 0 [pid 5824] mkdir("./0", 0777 [pid 5826] mkdir("./syzkaller.SUDQJl", 0700./strace-static-x86_64: Process 5827 attached [pid 5825] mkdir("./0", 0777 [pid 5824] <... mkdir resumed>) = 0 [pid 5825] <... mkdir resumed>) = 0 [pid 5826] <... mkdir resumed>) = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5822] <... clone resumed>, child_tidptr=0x55556ded7650) = 5827 [pid 5827] set_robust_list(0x55556ded7660, 24 [pid 5824] <... openat resumed>) = 3 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5827] <... set_robust_list resumed>) = 0 [pid 5826] chmod("./syzkaller.SUDQJl", 0777 [pid 5825] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5824] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5828 attached [pid 5827] mkdir("./syzkaller.P4Q6Cd", 0700 [pid 5826] <... chmod resumed>) = 0 [pid 5825] <... openat resumed>) = 3 [pid 5824] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5826] chdir("./syzkaller.SUDQJl" [pid 5822] <... clone resumed>, child_tidptr=0x55556ded7650) = 5828 [pid 5828] set_robust_list(0x55556ded7660, 24 [pid 5827] <... mkdir resumed>) = 0 [pid 5825] ioctl(3, LOOP_CLR_FD [pid 5828] <... set_robust_list resumed>) = 0 [pid 5826] <... chdir resumed>) = 0 [pid 5824] close(3 [pid 5827] chmod("./syzkaller.P4Q6Cd", 0777 [pid 5826] mkdir("./0", 0777 [pid 5825] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5828] mkdir("./syzkaller.lw9EVQ", 0700 [pid 5827] <... chmod resumed>) = 0 [pid 5825] close(3 [pid 5824] <... close resumed>) = 0 [pid 5825] <... close resumed>) = 0 [pid 5828] <... mkdir resumed>) = 0 [pid 5827] chdir("./syzkaller.P4Q6Cd" [pid 5826] <... mkdir resumed>) = 0 [pid 5825] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5824] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5830 attached ./strace-static-x86_64: Process 5829 attached [pid 5828] chmod("./syzkaller.lw9EVQ", 0777 [pid 5827] <... chdir resumed>) = 0 [pid 5828] <... chmod resumed>) = 0 [pid 5827] mkdir("./0", 0777 [pid 5826] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5825] <... clone resumed>, child_tidptr=0x55556ded7650) = 5829 [pid 5824] <... clone resumed>, child_tidptr=0x55556ded7650) = 5830 [pid 5830] set_robust_list(0x55556ded7660, 24 [pid 5829] set_robust_list(0x55556ded7660, 24 [pid 5830] <... set_robust_list resumed>) = 0 [pid 5829] <... set_robust_list resumed>) = 0 [pid 5830] chdir("./0" [pid 5829] chdir("./0" [pid 5826] <... openat resumed>) = 3 [pid 5830] <... chdir resumed>) = 0 [pid 5829] <... chdir resumed>) = 0 [pid 5828] chdir("./syzkaller.lw9EVQ" [pid 5827] <... mkdir resumed>) = 0 [pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5830] <... prctl resumed>) = 0 [pid 5829] <... prctl resumed>) = 0 [pid 5829] setpgid(0, 0 [pid 5828] <... chdir resumed>) = 0 [pid 5828] mkdir("./0", 0777) = 0 [pid 5830] setpgid(0, 0 [pid 5829] <... setpgid resumed>) = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5826] ioctl(3, LOOP_CLR_FD [pid 5830] <... setpgid resumed>) = 0 [pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5828] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5827] <... openat resumed>) = 3 [pid 5826] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5826] close(3) = 0 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5829] <... openat resumed>) = 3 [pid 5828] <... openat resumed>) = 3 [pid 5827] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5827] close(3) = 0 [pid 5828] ioctl(3, LOOP_CLR_FD [pid 5830] <... openat resumed>) = 3 [pid 5829] write(3, "1000", 4 [pid 5828] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached [pid 5830] write(3, "1000", 4 [pid 5829] <... write resumed>) = 4 [pid 5829] close(3 [pid 5830] <... write resumed>) = 4 [pid 5828] close(3 [pid 5833] set_robust_list(0x55556ded7660, 24 [pid 5828] <... close resumed>) = 0 [pid 5829] <... close resumed>) = 0 [pid 5830] close(3 [pid 5833] <... set_robust_list resumed>) = 0 [pid 5829] symlink("/dev/binderfs", "./binderfs" [pid 5830] <... close resumed>) = 0 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program executing program [pid 5833] chdir("./0" [pid 5830] symlink("/dev/binderfs", "./binderfs" [pid 5829] <... symlink resumed>) = 0 [pid 5833] <... chdir resumed>) = 0 [pid 5826] <... clone resumed>, child_tidptr=0x55556ded7650) = 5833 ./strace-static-x86_64: Process 5834 attached [pid 5827] <... clone resumed>, child_tidptr=0x55556ded7650) = 5834 [pid 5830] <... symlink resumed>) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5830] write(1, "executing program\n", 18 [pid 5833] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5835 attached [pid 5834] set_robust_list(0x55556ded7660, 24 [pid 5833] setpgid(0, 0 [pid 5830] <... write resumed>) = 18 [pid 5829] write(1, "executing program\n", 18 [pid 5828] <... clone resumed>, child_tidptr=0x55556ded7650) = 5835 [pid 5834] <... set_robust_list resumed>) = 0 [pid 5834] chdir("./0") = 0 [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5834] setpgid(0, 0) = 0 [pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1000", 4) = 4 [pid 5834] close(3) = 0 [pid 5834] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5834] write(1, "executing program\n", 18) = 18 [pid 5834] memfd_create("syzkaller", 0executing program ) = 3 [pid 5835] set_robust_list(0x55556ded7660, 24 [pid 5833] <... setpgid resumed>) = 0 [pid 5830] memfd_create("syzkaller", 0 [pid 5829] <... write resumed>) = 18 [pid 5835] <... set_robust_list resumed>) = 0 [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5830] <... memfd_create resumed>) = 3 [pid 5829] memfd_create("syzkaller", 0 [pid 5835] chdir("./0" [pid 5833] <... openat resumed>) = 3 [pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5829] <... memfd_create resumed>) = 3 [pid 5835] <... chdir resumed>) = 0 [pid 5833] write(3, "1000", 4 [pid 5830] <... mmap resumed>) = 0x7f3c73e00000 [pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5833] <... write resumed>) = 4 [pid 5834] <... mmap resumed>) = 0x7f3c73e00000 [pid 5835] <... prctl resumed>) = 0 [pid 5833] close(3 [pid 5829] <... mmap resumed>) = 0x7f3c73e00000 [pid 5835] setpgid(0, 0) = 0 [pid 5833] <... close resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5833] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5835] <... openat resumed>) = 3 executing program executing program [pid 5833] write(1, "executing program\n", 18) = 18 [pid 5835] write(3, "1000", 4) = 4 [pid 5833] memfd_create("syzkaller", 0 [pid 5835] close(3) = 0 [pid 5835] symlink("/dev/binderfs", "./binderfs" [pid 5833] <... memfd_create resumed>) = 3 [pid 5835] <... symlink resumed>) = 0 [pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c73e00000 [pid 5835] write(1, "executing program\n", 18) = 18 [pid 5835] memfd_create("syzkaller", 0) = 3 [pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c73e00000 [pid 5834] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5833] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5829] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5835] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5830] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5834] <... write resumed>) = 16777216 [ 91.929732][ T2151] cfg80211: failed to load regulatory.db [pid 5834] munmap(0x7f3c73e00000, 138412032) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5834] ioctl(4, LOOP_SET_FD, 3 [pid 5833] <... write resumed>) = 16777216 [pid 5834] <... ioctl resumed>) = 0 [pid 5833] munmap(0x7f3c73e00000, 138412032 [pid 5834] close(3) = 0 [pid 5834] close(4) = 0 [pid 5834] mkdir("./file1", 0777) = 0 [pid 5834] mount("/dev/loop3", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5829] <... write resumed>) = 16777216 [pid 5833] <... munmap resumed>) = 0 [pid 5830] <... write resumed>) = 16777216 [ 92.019402][ T5834] loop3: detected capacity change from 0 to 32768 [pid 5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5833] ioctl(4, LOOP_SET_FD, 3 [pid 5830] munmap(0x7f3c73e00000, 138412032 [pid 5829] munmap(0x7f3c73e00000, 138412032 [pid 5834] <... mount resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5833] <... ioctl resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5833] close(3 [pid 5834] chdir("./file1") = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5834] exit_group(0) = ? [pid 5834] +++ exited with 0 +++ [pid 5833] <... close resumed>) = 0 [pid 5830] <... munmap resumed>) = 0 [pid 5827] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5834, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- [pid 5833] close(4) = 0 [pid 5833] mkdir("./file1", 0777 [pid 5829] <... munmap resumed>) = 0 [pid 5835] <... write resumed>) = 16777216 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5833] <... mkdir resumed>) = 0 [pid 5827] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] mount("/dev/loop2", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5830] <... openat resumed>) = 4 [pid 5827] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5830] ioctl(4, LOOP_SET_FD, 3 [pid 5835] munmap(0x7f3c73e00000, 138412032 [ 92.080776][ T5833] loop2: detected capacity change from 0 to 32768 [pid 5827] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5829] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5827] <... openat resumed>) = 3 [pid 5829] <... openat resumed>) = 4 [pid 5827] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5829] ioctl(4, LOOP_SET_FD, 3 [pid 5827] getdents64(3, 0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5827] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5830] <... ioctl resumed>) = 0 [pid 5833] <... mount resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5830] close(3 [pid 5833] chdir("./file1" [pid 5830] <... close resumed>) = 0 [pid 5829] <... ioctl resumed>) = 0 [pid 5833] <... chdir resumed>) = 0 [pid 5830] close(4 [pid 5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5830] <... close resumed>) = 0 [pid 5830] mkdir("./file1", 0777 [pid 5835] <... munmap resumed>) = 0 [pid 5833] exit_group(0 [pid 5827] <... umount2 resumed>) = 0 [pid 5833] <... exit_group resumed>) = ? [pid 5830] <... mkdir resumed>) = 0 [pid 5833] +++ exited with 0 +++ [pid 5830] mount("/dev/loop0", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5835] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5829] close(3 [pid 5826] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5833, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5835] <... openat resumed>) = 4 [pid 5829] <... close resumed>) = 0 [pid 5827] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] restart_syscall(<... resuming interrupted clone ...> [pid 5835] ioctl(4, LOOP_SET_FD, 3 [pid 5829] close(4 [pid 5827] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5827] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 92.131703][ T5830] loop0: detected capacity change from 0 to 32768 [ 92.145196][ T5829] loop1: detected capacity change from 0 to 32768 [pid 5827] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5827] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5827] newfstatat(4, "", [pid 5829] <... close resumed>) = 0 [pid 5827] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] <... restart_syscall resumed>) = 0 [pid 5826] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5826] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5829] mkdir("./file1", 0777 [pid 5826] getdents64(3, 0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5829] <... mkdir resumed>) = 0 [pid 5827] getdents64(4, [pid 5826] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5829] mount("/dev/loop1", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5827] <... getdents64 resumed>0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5835] <... ioctl resumed>) = 0 [pid 5827] getdents64(4, 0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5827] close(4) = 0 [pid 5827] rmdir("./0/file1" [pid 5835] close(3) = 0 [pid 5835] close(4) = 0 [pid 5835] mkdir("./file1", 0777) = 0 [pid 5835] mount("/dev/loop4", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5827] <... rmdir resumed>) = 0 [pid 5827] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5827] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5827] unlink("./0/binderfs") = 0 [pid 5826] <... umount2 resumed>) = 0 [pid 5826] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5826] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] getdents64(4, [pid 5829] <... mount resumed>) = 0 [pid 5827] getdents64(3, [pid 5826] <... getdents64 resumed>0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5829] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5835] <... mount resumed>) = 0 [pid 5829] <... openat resumed>) = 3 [pid 5827] <... getdents64 resumed>0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5826] getdents64(4, [pid 5835] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5829] chdir("./file1" [pid 5827] close(3 [pid 5826] <... getdents64 resumed>0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5830] <... mount resumed>) = 0 [pid 5827] <... close resumed>) = 0 [pid 5826] close(4 [pid 5827] rmdir("./0" [pid 5826] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5830] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5829] <... chdir resumed>) = 0 [pid 5827] <... rmdir resumed>) = 0 [pid 5826] rmdir("./0/file1" [pid 5835] chdir("./file1" [pid 5830] <... openat resumed>) = 3 [ 92.191018][ T5835] loop4: detected capacity change from 0 to 32768 [pid 5829] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5826] <... rmdir resumed>) = 0 [pid 5835] <... chdir resumed>) = 0 [pid 5830] chdir("./file1" [pid 5829] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5827] mkdir("./1", 0777 [pid 5826] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5830] <... chdir resumed>) = 0 [pid 5829] exit_group(0 [pid 5827] <... mkdir resumed>) = 0 [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5829] <... exit_group resumed>) = ? [pid 5826] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5830] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5827] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5826] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5827] <... openat resumed>) = 3 [pid 5826] unlink("./0/binderfs" [pid 5827] ioctl(3, LOOP_CLR_FD [pid 5826] <... unlink resumed>) = 0 [pid 5829] +++ exited with 0 +++ [pid 5826] getdents64(3, [pid 5827] <... ioctl resumed>) = 0 [pid 5826] <... getdents64 resumed>0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5825] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5829, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=26 /* 0.26 s */} --- [pid 5827] close(3 [pid 5826] close(3 [pid 5825] restart_syscall(<... resuming interrupted clone ...> [pid 5830] exit_group(0 [pid 5827] <... close resumed>) = 0 [pid 5826] <... close resumed>) = 0 [pid 5830] <... exit_group resumed>) = ? [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5826] rmdir("./0"./strace-static-x86_64: Process 5841 attached [pid 5830] +++ exited with 0 +++ [pid 5825] <... restart_syscall resumed>) = 0 [pid 5835] exit_group(0 [pid 5824] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 s */} --- [pid 5841] set_robust_list(0x55556ded7660, 24 [pid 5835] <... exit_group resumed>) = ? [pid 5825] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5825] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5825] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5825] getdents64(3, [pid 5826] <... rmdir resumed>) = 0 [pid 5825] <... getdents64 resumed>0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5835] +++ exited with 0 +++ [pid 5827] <... clone resumed>, child_tidptr=0x55556ded7650) = 5841 [pid 5826] mkdir("./1", 0777 [pid 5825] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5828] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 s */} --- [pid 5826] <... mkdir resumed>) = 0 [pid 5828] restart_syscall(<... resuming interrupted clone ...> [pid 5841] chdir("./1" [pid 5828] <... restart_syscall resumed>) = 0 [pid 5826] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5841] <... chdir resumed>) = 0 [pid 5826] <... openat resumed>) = 3 [pid 5825] <... umount2 resumed>) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5826] ioctl(3, LOOP_CLR_FD [pid 5841] <... prctl resumed>) = 0 [pid 5828] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] <... ioctl resumed>) = 0 [pid 5824] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5841] setpgid(0, 0 [pid 5828] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] close(3 [pid 5825] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5841] <... setpgid resumed>) = 0 [pid 5828] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5826] <... close resumed>) = 0 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5824] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5828] <... openat resumed>) = 3 [pid 5825] newfstatat(AT_FDCWD, "./0/file1", [pid 5824] <... openat resumed>) = 3 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5828] newfstatat(3, "", [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5825] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5824] newfstatat(3, "", ./strace-static-x86_64: Process 5842 attached [pid 5841] <... openat resumed>) = 3 [pid 5828] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5825] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5842] set_robust_list(0x55556ded7660, 24 [pid 5841] write(3, "1000", 4 [pid 5828] getdents64(3, [pid 5826] <... clone resumed>, child_tidptr=0x55556ded7650) = 5842 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5824] getdents64(3, [pid 5842] <... set_robust_list resumed>) = 0 [pid 5828] <... getdents64 resumed>0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5825] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5824] <... getdents64 resumed>0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5841] <... write resumed>) = 4 [pid 5828] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] <... openat resumed>) = 4 [pid 5824] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5842] chdir("./1" [pid 5841] close(3 [pid 5825] newfstatat(4, "", [pid 5841] <... close resumed>) = 0 [pid 5825] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5842] <... chdir resumed>) = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5825] getdents64(4, 0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5825] getdents64(4, [pid 5842] <... prctl resumed>) = 0 [pid 5825] <... getdents64 resumed>0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5824] <... umount2 resumed>) = 0 [pid 5825] close(4 [pid 5842] setpgid(0, 0 [pid 5841] symlink("/dev/binderfs", "./binderfs" [pid 5825] <... close resumed>) = 0 [pid 5824] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5842] <... setpgid resumed>) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5825] rmdir("./0/file1" [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 5842] <... openat resumed>) = 3 [pid 5841] <... symlink resumed>) = 0 [pid 5825] <... rmdir resumed>) = 0 [pid 5824] newfstatat(AT_FDCWD, "./0/file1", [pid 5842] write(3, "1000", 4 [pid 5841] write(1, "executing program\n", 18 [pid 5825] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5842] <... write resumed>) = 4 [pid 5841] <... write resumed>) = 18 [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5842] close(3 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5842] <... close resumed>) = 0 [pid 5824] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5841] memfd_create("syzkaller", 0 [pid 5825] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5842] symlink("/dev/binderfs", "./binderfs" [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5842] <... symlink resumed>) = 0 [pid 5828] <... umount2 resumed>) = 0 [pid 5825] unlink("./0/binderfs" [pid 5824] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 5842] write(1, "executing program\n", 18 [pid 5828] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] <... unlink resumed>) = 0 [pid 5824] <... openat resumed>) = 4 [pid 5842] <... write resumed>) = 18 [pid 5841] <... memfd_create resumed>) = 3 [pid 5825] getdents64(3, [pid 5824] newfstatat(4, "", [pid 5828] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5842] memfd_create("syzkaller", 0 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5828] newfstatat(AT_FDCWD, "./0/file1", [pid 5825] <... getdents64 resumed>0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5842] <... memfd_create resumed>) = 3 [pid 5841] <... mmap resumed>) = 0x7f3c73e00000 [pid 5828] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5828] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] close(3 [pid 5824] getdents64(4, [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5828] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5828] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5842] <... mmap resumed>) = 0x7f3c73e00000 [pid 5828] <... openat resumed>) = 4 [pid 5824] <... getdents64 resumed>0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5828] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5828] getdents64(4, [pid 5824] getdents64(4, [pid 5828] <... getdents64 resumed>0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5828] getdents64(4, 0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5828] close(4) = 0 [pid 5828] rmdir("./0/file1") = 0 [pid 5824] <... getdents64 resumed>0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5828] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5828] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5828] unlink("./0/binderfs") = 0 [pid 5828] getdents64(3, 0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5828] close(3) = 0 [pid 5828] rmdir("./0" [pid 5825] <... close resumed>) = 0 [pid 5824] close(4 [pid 5828] <... rmdir resumed>) = 0 [pid 5825] rmdir("./0" [pid 5824] <... close resumed>) = 0 [pid 5828] mkdir("./1", 0777) = 0 [pid 5828] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5825] <... rmdir resumed>) = 0 [pid 5824] rmdir("./0/file1" [pid 5825] mkdir("./1", 0777 [pid 5824] <... rmdir resumed>) = 0 [pid 5828] <... openat resumed>) = 3 [pid 5828] ioctl(3, LOOP_CLR_FD) = 0 [pid 5825] <... mkdir resumed>) = 0 [pid 5824] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5828] close(3) = 0 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5825] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5825] <... openat resumed>) = 3 [pid 5824] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5825] ioctl(3, LOOP_CLR_FD [pid 5824] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5825] <... ioctl resumed>) = 0 [pid 5824] unlink("./0/binderfs" [pid 5825] close(3 [pid 5828] <... clone resumed>, child_tidptr=0x55556ded7650) = 5844 [pid 5825] <... close resumed>) = 0 [pid 5824] <... unlink resumed>) = 0 [pid 5825] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5824] getdents64(3, ./strace-static-x86_64: Process 5844 attached ./strace-static-x86_64: Process 5845 attached [pid 5844] set_robust_list(0x55556ded7660, 24 [pid 5824] <... getdents64 resumed>0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5845] set_robust_list(0x55556ded7660, 24 [pid 5825] <... clone resumed>, child_tidptr=0x55556ded7650) = 5845 [pid 5824] close(3 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5824] <... close resumed>) = 0 [pid 5844] chdir("./1" [pid 5824] rmdir("./0" [pid 5844] <... chdir resumed>) = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] setpgid(0, 0 [pid 5824] <... rmdir resumed>) = 0 [pid 5844] <... setpgid resumed>) = 0 [pid 5824] mkdir("./1", 0777 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5844] write(3, "1000", 4) = 4 [pid 5844] close(3) = 0 [pid 5844] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5845] <... set_robust_list resumed>) = 0 [pid 5844] write(1, "executing program\n", 18 [pid 5824] <... mkdir resumed>) = 0 [pid 5844] <... write resumed>) = 18 [pid 5845] chdir("./1" [pid 5844] memfd_create("syzkaller", 0 [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5845] <... chdir resumed>) = 0 [pid 5844] <... memfd_create resumed>) = 3 [pid 5824] <... openat resumed>) = 3 [pid 5824] ioctl(3, LOOP_CLR_FD [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c73e00000 [pid 5824] <... ioctl resumed>) = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5824] close(3 [pid 5845] <... prctl resumed>) = 0 [pid 5824] <... close resumed>) = 0 [pid 5845] setpgid(0, 0 [pid 5824] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5846 attached [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5846] set_robust_list(0x55556ded7660, 24 [pid 5845] <... openat resumed>) = 3 [pid 5824] <... clone resumed>, child_tidptr=0x55556ded7650) = 5846 [pid 5846] <... set_robust_list resumed>) = 0 [pid 5845] write(3, "1000", 4) = 4 [pid 5846] chdir("./1" [pid 5845] close(3 [pid 5846] <... chdir resumed>) = 0 [pid 5845] <... close resumed>) = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] symlink("/dev/binderfs", "./binderfs" [pid 5846] <... prctl resumed>) = 0 [pid 5845] <... symlink resumed>) = 0 [pid 5845] write(1, "executing program\n", 18executing program ) = 18 [pid 5846] setpgid(0, 0 [pid 5845] memfd_create("syzkaller", 0 [pid 5846] <... setpgid resumed>) = 0 [pid 5845] <... memfd_create resumed>) = 3 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5846] write(3, "1000", 4 [pid 5845] <... mmap resumed>) = 0x7f3c73e00000 [pid 5846] <... write resumed>) = 4 [pid 5846] close(3) = 0 [pid 5846] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5846] write(1, "executing program\n", 18executing program ) = 18 [pid 5846] memfd_create("syzkaller", 0) = 3 [pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c73e00000 [pid 5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5842] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5844] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5846] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5842] <... write resumed>) = 16777216 [pid 5842] munmap(0x7f3c73e00000, 138412032 [pid 5841] <... write resumed>) = 16777216 [pid 5841] munmap(0x7f3c73e00000, 138412032 [pid 5842] <... munmap resumed>) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5841] <... munmap resumed>) = 0 [pid 5842] ioctl(4, LOOP_SET_FD, 3 [pid 5844] <... write resumed>) = 16777216 [pid 5846] <... write resumed>) = 16777216 [pid 5842] <... ioctl resumed>) = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 93.522178][ T5842] loop2: detected capacity change from 0 to 32768 [pid 5844] munmap(0x7f3c73e00000, 138412032 [pid 5846] munmap(0x7f3c73e00000, 138412032 [pid 5842] close(3 [pid 5841] ioctl(4, LOOP_SET_FD, 3 [pid 5842] <... close resumed>) = 0 [pid 5842] close(4) = 0 [pid 5842] mkdir("./file1", 0777 [pid 5844] <... munmap resumed>) = 0 [pid 5846] <... munmap resumed>) = 0 [pid 5845] <... write resumed>) = 16777216 [pid 5842] <... mkdir resumed>) = 0 [pid 5841] <... ioctl resumed>) = 0 [pid 5842] mount("/dev/loop2", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5841] close(3) = 0 [pid 5841] close(4) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5841] mkdir("./file1", 0777 [pid 5844] <... openat resumed>) = 4 [pid 5844] ioctl(4, LOOP_SET_FD, 3 [pid 5846] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5845] munmap(0x7f3c73e00000, 138412032 [pid 5842] <... mount resumed>) = 0 [pid 5841] <... mkdir resumed>) = 0 [pid 5842] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5841] mount("/dev/loop3", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5842] <... openat resumed>) = 3 [pid 5842] chdir("./file1") = 0 [pid 5846] <... openat resumed>) = 4 [pid 5842] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [ 93.568089][ T5841] loop3: detected capacity change from 0 to 32768 [ 93.595660][ T5844] loop4: detected capacity change from 0 to 32768 [pid 5846] ioctl(4, LOOP_SET_FD, 3 [pid 5842] exit_group(0 [pid 5841] <... mount resumed>) = 0 [pid 5841] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5842] <... exit_group resumed>) = ? [pid 5841] <... openat resumed>) = 3 [pid 5841] chdir("./file1") = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5841] exit_group(0) = ? [pid 5844] <... ioctl resumed>) = 0 [pid 5842] +++ exited with 0 +++ [pid 5844] close(3 [pid 5846] <... ioctl resumed>) = 0 [pid 5841] +++ exited with 0 +++ [pid 5826] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=27 /* 0.27 s */} --- [pid 5827] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5827] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5827] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5827] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5827] getdents64(3, 0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5846] close(3 [pid 5827] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5846] <... close resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 5844] close(4) = 0 [pid 5844] mkdir("./file1", 0777) = 0 [pid 5844] mount("/dev/loop4", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5846] close(4) = 0 [pid 5846] mkdir("./file1", 0777 [pid 5826] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5846] <... mkdir resumed>) = 0 [pid 5845] <... munmap resumed>) = 0 [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 93.627173][ T5846] loop0: detected capacity change from 0 to 32768 [pid 5845] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5846] mount("/dev/loop0", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5826] newfstatat(3, "", [pid 5827] <... umount2 resumed>) = 0 [pid 5826] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5827] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] getdents64(3, [pid 5827] newfstatat(AT_FDCWD, "./1/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] <... getdents64 resumed>0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5845] <... openat resumed>) = 4 [pid 5844] <... mount resumed>) = 0 [pid 5827] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5845] ioctl(4, LOOP_SET_FD, 3 [pid 5827] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5844] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5827] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5844] <... openat resumed>) = 3 [pid 5827] <... openat resumed>) = 4 [pid 5827] newfstatat(4, "", [pid 5844] chdir("./file1" [pid 5826] <... umount2 resumed>) = 0 [pid 5844] <... chdir resumed>) = 0 [pid 5846] <... mount resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5827] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5846] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5826] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5844] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5827] getdents64(4, [pid 5846] <... openat resumed>) = 3 [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5846] chdir("./file1" [pid 5826] newfstatat(AT_FDCWD, "./1/file1", [pid 5846] <... chdir resumed>) = 0 [pid 5827] <... getdents64 resumed>0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5826] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5844] exit_group(0 [pid 5827] getdents64(4, [pid 5826] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5827] <... getdents64 resumed>0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5827] close(4 [pid 5826] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5846] exit_group(0 [pid 5827] <... close resumed>) = 0 [pid 5826] <... openat resumed>) = 4 [pid 5846] <... exit_group resumed>) = ? [pid 5827] rmdir("./1/file1" [pid 5826] newfstatat(4, "", [pid 5846] +++ exited with 0 +++ [pid 5826] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] getdents64(4, 0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5844] <... exit_group resumed>) = ? [pid 5826] getdents64(4, [pid 5824] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 s */} --- [pid 5826] <... getdents64 resumed>0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5824] restart_syscall(<... resuming interrupted clone ...> [pid 5826] close(4) = 0 [pid 5826] rmdir("./1/file1") = 0 [pid 5845] <... ioctl resumed>) = 0 [pid 5844] +++ exited with 0 +++ [pid 5827] <... rmdir resumed>) = 0 [pid 5826] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] <... restart_syscall resumed>) = 0 [pid 5828] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 s */} --- [pid 5845] close(3) = 0 [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5845] close(4 [pid 5828] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5828] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5824] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5828] newfstatat(3, "", [pid 5845] <... close resumed>) = 0 [pid 5828] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5845] mkdir("./file1", 0777 [pid 5828] getdents64(3, [pid 5824] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5845] <... mkdir resumed>) = 0 [pid 5828] <... getdents64 resumed>0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5827] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5828] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5824] <... openat resumed>) = 3 [pid 5827] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] unlink("./1/binderfs" [pid 5824] newfstatat(3, "", [ 93.696291][ T5845] loop1: detected capacity change from 0 to 32768 [pid 5845] mount("/dev/loop1", "./file1", "jfs", MS_NODIRATIME|MS_SILENT, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" [pid 5827] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5826] <... unlink resumed>) = 0 [pid 5828] <... umount2 resumed>) = 0 [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5845] <... mount resumed>) = 0 [pid 5827] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] getdents64(3, [pid 5824] getdents64(3, [pid 5845] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5826] <... getdents64 resumed>0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5824] <... getdents64 resumed>0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5845] <... openat resumed>) = 3 [pid 5826] close(3 [pid 5845] chdir("./file1" [pid 5826] <... close resumed>) = 0 [pid 5845] <... chdir resumed>) = 0 [pid 5827] unlink("./1/binderfs" [pid 5826] rmdir("./1" [pid 5824] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5845] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5827] <... unlink resumed>) = 0 [pid 5826] <... rmdir resumed>) = 0 [pid 5845] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5828] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] mkdir("./2", 0777 [pid 5845] exit_group(0 [pid 5828] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5827] getdents64(3, [pid 5826] <... mkdir resumed>) = 0 [pid 5845] <... exit_group resumed>) = ? [pid 5828] newfstatat(AT_FDCWD, "./1/file1", [pid 5827] <... getdents64 resumed>0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5828] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5827] close(3 [pid 5826] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5827] <... close resumed>) = 0 [pid 5824] <... umount2 resumed>) = 0 [pid 5845] +++ exited with 0 +++ [pid 5828] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5828] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5827] rmdir("./1" [pid 5824] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- [pid 5826] <... openat resumed>) = 3 [pid 5828] newfstatat(4, "", [pid 5826] ioctl(3, LOOP_CLR_FD [pid 5828] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5827] <... rmdir resumed>) = 0 [pid 5825] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] <... ioctl resumed>) = 0 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5824] newfstatat(AT_FDCWD, "./1/file1", [pid 5826] close(3 [pid 5828] getdents64(4, [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5825] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5827] mkdir("./2", 0777 [pid 5825] <... openat resumed>) = 3 [pid 5824] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5828] <... getdents64 resumed>0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5825] newfstatat(3, "", [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5828] getdents64(4, [pid 5824] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5828] <... getdents64 resumed>0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5825] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5828] close(4 [pid 5824] <... openat resumed>) = 4 [pid 5825] getdents64(3, [pid 5828] <... close resumed>) = 0 [pid 5825] <... getdents64 resumed>0x55556ded86f0 /* 4 entries */, 32768) = 112 [pid 5824] newfstatat(4, "", [pid 5828] rmdir("./1/file1") = 0 [pid 5827] <... mkdir resumed>) = 0 [pid 5825] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5828] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5828] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5828] unlink("./1/binderfs" [pid 5824] getdents64(4, [pid 5828] <... unlink resumed>) = 0 [pid 5824] <... getdents64 resumed>0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5827] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5828] getdents64(3, 0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5824] getdents64(4, [pid 5828] close(3) = 0 [pid 5828] rmdir("./1") = 0 [pid 5827] <... openat resumed>) = 3 [pid 5824] <... getdents64 resumed>0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5827] ioctl(3, LOOP_CLR_FD [pid 5828] mkdir("./2", 0777) = 0 [pid 5828] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5824] close(4 [pid 5827] <... ioctl resumed>) = 0 [pid 5828] <... openat resumed>) = 3 [pid 5828] ioctl(3, LOOP_CLR_FD) = 0 [pid 5828] close(3) = 0 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5827] close(3 [pid 5824] <... close resumed>) = 0 [pid 5827] <... close resumed>) = 0 [pid 5824] rmdir("./1/file1") = 0 [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached ./strace-static-x86_64: Process 5850 attached [pid 5828] <... clone resumed>, child_tidptr=0x55556ded7650) = 5849 [pid 5824] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5827] <... clone resumed>, child_tidptr=0x55556ded7650) = 5850 [pid 5850] set_robust_list(0x55556ded7660, 24) = 0 [pid 5850] chdir("./2") = 0 [pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5850] setpgid(0, 0) = 0 [pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "1000", 4) = 4 [pid 5850] close(3) = 0 [pid 5850] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5850] write(1, "executing program\n", 18) = 18 [pid 5850] memfd_create("syzkaller", 0 [pid 5849] set_robust_list(0x55556ded7660, 24) = 0 [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5850] <... memfd_create resumed>) = 3 [pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c73e00000 [pid 5849] chdir("./2" [pid 5824] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5849] <... chdir resumed>) = 0 [pid 5824] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5824] unlink("./1/binderfs" [pid 5849] <... prctl resumed>) = 0 [pid 5849] setpgid(0, 0 [pid 5824] <... unlink resumed>) = 0 [pid 5849] <... setpgid resumed>) = 0 [pid 5824] getdents64(3, [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5824] <... getdents64 resumed>0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5825] <... umount2 resumed>) = 0 [pid 5825] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5825] newfstatat(AT_FDCWD, "./1/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5824] close(3 [pid 5849] <... openat resumed>) = 3 [pid 5825] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] <... close resumed>) = 0 [pid 5849] write(3, "1000", 4 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5824] rmdir("./1" [pid 5849] <... write resumed>) = 4 [pid 5825] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5824] <... rmdir resumed>) = 0 [pid 5849] close(3 [pid 5824] mkdir("./2", 0777 [pid 5849] <... close resumed>) = 0 [pid 5825] newfstatat(4, "", [pid 5849] symlink("/dev/binderfs", "./binderfs" [pid 5825] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5825] getdents64(4, 0x55556dee0730 /* 2 entries */, 32768) = 48 [pid 5825] getdents64(4, [pid 5824] <... mkdir resumed>) = 0 [pid 5825] <... getdents64 resumed>0x55556dee0730 /* 0 entries */, 32768) = 0 [pid 5825] close(4) = 0 [pid 5849] <... symlink resumed>) = 0 [pid 5825] rmdir("./1/file1") = 0 [pid 5849] write(1, "executing program\n", 18 [pid 5825] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5825] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5825] unlink("./1/binderfs" [pid 5849] <... write resumed>) = 18 [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5825] <... unlink resumed>) = 0 [pid 5825] getdents64(3, 0x55556ded86f0 /* 0 entries */, 32768) = 0 [pid 5849] memfd_create("syzkaller", 0 [pid 5825] close(3) = 0 [pid 5824] <... openat resumed>) = 3 [pid 5825] rmdir("./1") = 0 [pid 5825] mkdir("./2", 0777 [pid 5849] <... memfd_create resumed>) = 3 [pid 5825] <... mkdir resumed>) = 0 [pid 5824] ioctl(3, LOOP_CLR_FD [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c73e00000 [pid 5824] <... ioctl resumed>) = 0 [pid 5824] close(3) = 0 [pid 5824] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD