./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3169364851 <...> Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts. execve("./syz-executor3169364851", ["./syz-executor3169364851"], 0x7ffcc6cfbf70 /* 10 vars */) = 0 brk(NULL) = 0x55555b0e2000 brk(0x55555b0e2e00) = 0x55555b0e2e00 arch_prctl(ARCH_SET_FS, 0x55555b0e2480) = 0 set_tid_address(0x55555b0e2750) = 5887 set_robust_list(0x55555b0e2760, 24) = 0 rseq(0x55555b0e2da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3169364851", 4096) = 28 getrandom("\x55\xc2\x89\xdc\x26\xfd\xcf\xc8", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555b0e2e00 brk(0x55555b103e00) = 0x55555b103e00 brk(0x55555b104000) = 0x55555b104000 mprotect(0x7f9d94a9e000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f9d949ee6e0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9d949f9b90}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f9d949ee6e0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9d949f9b90}, NULL, 8) = 0 mkdir("./syzkaller.PLhhGL", 0700) = 0 chmod("./syzkaller.PLhhGL", 0777) = 0 chdir("./syzkaller.PLhhGL") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5888 attached , child_tidptr=0x55555b0e2750) = 5888 [pid 5888] set_robust_list(0x55555b0e2760, 24) = 0 [pid 5888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5888] getppid() = 0 [pid 5888] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5888] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5888] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5888] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5888] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5888] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5888] unshare(CLONE_NEWNS) = 0 [pid 5888] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5888] unshare(CLONE_NEWIPC) = 0 [pid 5888] unshare(CLONE_NEWCGROUP) = 0 [pid 5888] unshare(CLONE_NEWUTS) = 0 [pid 5888] unshare(CLONE_SYSVSEM) = 0 [pid 5888] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5888] write(3, "16777216", 8) = 8 [pid 5888] close(3) = 0 [pid 5888] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5888] write(3, "536870912", 9) = 9 [pid 5888] close(3) = 0 [pid 5888] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5888] write(3, "1024", 4) = 4 [pid 5888] close(3) = 0 [pid 5888] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5888] write(3, "8192", 4) = 4 [pid 5888] close(3) = 0 [pid 5888] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5888] write(3, "1024", 4) = 4 [pid 5888] close(3) = 0 [pid 5888] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5888] write(3, "1024", 4) = 4 [pid 5888] close(3) = 0 [pid 5888] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5888] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5888] close(3) = 0 [pid 5888] getpid() = 1 [pid 5888] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 5888] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5888] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5888] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_EMPTY_PATH) = 0 [pid 5888] getdents64(3, 0x55555b0e37f0 /* 3 entries */, 32768) = 80 [pid 5888] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5888] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5888] unlink("./0/binderfs") = 0 [pid 5888] getdents64(3, 0x55555b0e37f0 /* 0 entries */, 32768) = 0 [pid 5888] close(3) = 0 [pid 5888] rmdir("./0") = 0 [pid 5888] mkdir("./1", 0777) = 0 [pid 5888] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5904 attached [pid 5904] set_robust_list(0x55555b0e2760, 24) = 0 [pid 5904] chdir("./1" [pid 5888] <... clone resumed>, child_tidptr=0x55555b0e2750) = 3 [pid 5904] <... chdir resumed>) = 0 [pid 5904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5904] setpgid(0, 0) = 0 [pid 5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5904] write(3, "1000", 4) = 4 [pid 5904] close(3) = 0 [pid 5904] read(200, 0x7ffe3e8152f0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5904] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5904] write(1, "executing program\n", 18) = 18 [pid 5904] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5904] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [pid 5904] write(200, "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\x3a\x08\x00\x45\x00\x00\x2c\x00\x00\x00\x00\x00\x06\xba\xcd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4e\x29\x44\x43\x42\x41\x44\x43\x42\x41\x60\x16\x00\x01\x42\x96\x00\x00\x02\x02\x00\x00", 58) = 58 [pid 5904] close(3) = 0 [pid 5904] close(4) = -1 EBADF (Bad file descriptor) [pid 5904] close(5) = -1 EBADF (Bad file descriptor) [pid 5904] close(6) = -1 EBADF (Bad file descriptor) [pid 5904] close(7) = -1 EBADF (Bad file descriptor) [pid 5904] close(8) = -1 EBADF (Bad file descriptor) [pid 5904] close(9) = -1 EBADF (Bad file descriptor) [pid 5904] close(10) = -1 EBADF (Bad file descriptor) [pid 5904] close(11) = -1 EBADF (Bad file descriptor) [pid 5904] close(12) = -1 EBADF (Bad file descriptor) [pid 5904] close(13) = -1 EBADF (Bad file descriptor) [pid 5904] close(14) = -1 EBADF (Bad file descriptor) [pid 5904] close(15) = -1 EBADF (Bad file descriptor) [pid 5904] close(16) = -1 EBADF (Bad file descriptor) [pid 5904] close(17) = -1 EBADF (Bad file descriptor) [pid 5904] close(18) = -1 EBADF (Bad file descriptor) [pid 5904] close(19) = -1 EBADF (Bad file descriptor) [pid 5904] close(20) = -1 EBADF (Bad file descriptor) [pid 5904] close(21) = -1 EBADF (Bad file descriptor) [pid 5904] close(22) = -1 EBADF (Bad file descriptor) [pid 5904] close(23) = -1 EBADF (Bad file descriptor) [pid 5904] close(24) = -1 EBADF (Bad file descriptor) [pid 5904] close(25) = -1 EBADF (Bad file descriptor) [pid 5904] close(26) = -1 EBADF (Bad file descriptor) [pid 5904] close(27) = -1 EBADF (Bad file descriptor) [pid 5904] close(28) = -1 EBADF (Bad file descriptor) [pid 5904] close(29) = -1 EBADF (Bad file descriptor) [pid 5904] exit_group(0) = ? [pid 5904] +++ exited with 0 +++ [pid 5888] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5888] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5888] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5888] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5888] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_EMPTY_PATH) = 0 [pid 5888] getdents64(3, 0x55555b0e37f0 /* 3 entries */, 32768) = 80 [pid 5888] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5888] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5888] unlink("./1/binderfs") = 0 [pid 5888] getdents64(3, 0x55555b0e37f0 /* 0 entries */, 32768) = 0 [pid 5888] close(3) = 0 [pid 5888] rmdir("./1") = 0 [pid 5888] mkdir("./2", 0777) = 0 [pid 5888] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555b0e2750) = 4 [ 161.923069][ C1] sched: DL replenish lagged too much executing program ./strace-static-x86_64: Process 5905 attached [pid 5905] set_robust_list(0x55555b0e2760, 24) = 0 [pid 5905] chdir("./2") = 0 [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5905] setpgid(0, 0) = 0 [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5905] write(3, "1000", 4) = 4 [pid 5905] close(3) = 0 [pid 5905] read(200, 0x7ffe3e8152f0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5905] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5905] write(1, "executing program\n", 18) = 18 [pid 5905] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5905] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 5888] kill(-4, SIGKILL) = 0 [pid 5888] kill(4, SIGKILL) = 0 [pid 5905] <... sendmsg resumed>) = ? [pid 5905] +++ killed by SIGKILL +++ [pid 5888] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- [pid 5888] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5888] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5888] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_EMPTY_PATH) = 0 [pid 5888] getdents64(3, 0x55555b0e37f0 /* 3 entries */, 32768) = 80 [pid 5888] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5888] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5888] unlink("./2/binderfs") = 0 [pid 5888] getdents64(3, 0x55555b0e37f0 /* 0 entries */, 32768) = 0 [pid 5888] close(3) = 0 [pid 5888] rmdir("./2") = 0 [pid 5888] mkdir("./3", 0777) = 0 [pid 5888] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555b0e2750) = 5 ./strace-static-x86_64: Process 5907 attached [pid 5907] set_robust_list(0x55555b0e2760, 24) = 0 [pid 5907] chdir("./3") = 0 [pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5907] setpgid(0, 0) = 0 [pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5907] write(3, "1000", 4) = 4 [pid 5907] close(3) = 0 [pid 5907] read(200, 0x7ffe3e8152f0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5907] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5907] write(1, "executing program\n", 18) = 18 [pid 5907] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5907] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 5888] kill(-5, SIGKILL) = 0 [pid 5888] kill(5, SIGKILL) = 0 [pid 5907] <... sendmsg resumed>) = ? [pid 5907] +++ killed by SIGKILL +++ [pid 5888] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5888] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5888] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5888] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_EMPTY_PATH) = 0 [pid 5888] getdents64(3, 0x55555b0e37f0 /* 3 entries */, 32768) = 80 [pid 5888] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5888] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5888] unlink("./3/binderfs") = 0 [pid 5888] getdents64(3, 0x55555b0e37f0 /* 0 entries */, 32768) = 0 [pid 5888] close(3) = 0 [pid 5888] rmdir("./3") = 0 [pid 5888] mkdir("./4", 0777) = 0 [pid 5888] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555b0e2750) = 6 ./strace-static-x86_64: Process 5911 attached [pid 5911] set_robust_list(0x55555b0e2760, 24) = 0 [pid 5911] chdir("./4") = 0 [pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5911] setpgid(0, 0) = 0 [pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5888] kill(-6, SIGKILL) = 0 [pid 5888] kill(6, SIGKILL) = 0 [ 436.157772][ T31] INFO: task kworker/u8:1:13 blocked for more than 145 seconds. [ 436.165499][ T31] Not tainted 6.16.0-syzkaller-12108-gc04fdca8a98a #0 [pid 5888] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5911] <... openat resumed>) = ?