./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor753633141 <...> Warning: Permanently added '10.128.1.95' (ED25519) to the list of known hosts. execve("./syz-executor753633141", ["./syz-executor753633141"], 0x7fff8af25920 /* 10 vars */) = 0 brk(NULL) = 0x555562d8e000 brk(0x555562d8ed00) = 0x555562d8ed00 arch_prctl(ARCH_SET_FS, 0x555562d8e380) = 0 set_tid_address(0x555562d8e650) = 5840 set_robust_list(0x555562d8e660, 24) = 0 rseq(0x555562d8eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor753633141", 4096) = 27 getrandom("\x1a\x69\x5d\x67\xfc\x7e\xfc\x48", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555562d8ed00 brk(0x555562dafd00) = 0x555562dafd00 brk(0x555562db0000) = 0x555562db0000 mprotect(0x7fe18d8c3000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached [pid 5841] set_robust_list(0x555562d8e660, 24 [pid 5840] <... clone resumed>, child_tidptr=0x555562d8e650) = 5841 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] getppid() = 0 [pid 5841] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5841] unshare(CLONE_NEWNS) = 0 [pid 5841] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5841] unshare(CLONE_NEWIPC) = 0 [pid 5841] unshare(CLONE_NEWCGROUP) = 0 [pid 5841] unshare(CLONE_NEWUTS) = 0 [pid 5841] unshare(CLONE_SYSVSEM) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "16777216", 8) = 8 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "536870912", 9) = 9 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1024", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "8192", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1024", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1024", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5841] close(3) = 0 [pid 5841] getpid() = 1 [pid 5841] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5864] set_robust_list(0x555562d8e660, 24) = 0 [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5841] <... clone resumed>, child_tidptr=0x555562d8e650) = 2 [pid 5864] <... prctl resumed>) = 0 [pid 5864] setpgid(0, 0) = 0 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5864] write(3, "1000", 4) = 4 [pid 5864] close(3) = 0 [pid 5864] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5864] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5864] read(200, 0x7ffcac3213b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5864] write(1, "executing program\n", 18executing program ) = 18 [pid 5864] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5864] 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 5864] write(200, "\x01\x80\xc2\x00\x00\x02\x15\x01\x9b\x94\x2c\xdc\x08\x00\x45\x00\x00\x34\x00\x00\x00\x00\x00\x06\xba\xc5\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x4e\x26\x44\x43\x42\x41\x44\x43\x42\x41\x80\xc2\x00\x01\xfb\x4a\x00\x00\x1e\x0c\x09\x00\x01\x00\x00\x80\x00\x00\x00\x00", 66) = 66 [pid 5864] close(3) = 0 [pid 5864] close(4) = -1 EBADF (Bad file descriptor) [pid 5864] close(5) = -1 EBADF (Bad file descriptor) [pid 5864] close(6) = -1 EBADF (Bad file descriptor) [pid 5864] close(7) = -1 EBADF (Bad file descriptor) [pid 5864] close(8) = -1 EBADF (Bad file descriptor) [pid 5864] close(9) = -1 EBADF (Bad file descriptor) [pid 5864] close(10) = -1 EBADF (Bad file descriptor) [pid 5864] close(11) = -1 EBADF (Bad file descriptor) [pid 5864] close(12) = -1 EBADF (Bad file descriptor) [pid 5864] close(13) = -1 EBADF (Bad file descriptor) [pid 5864] close(14) = -1 EBADF (Bad file descriptor) [pid 5864] close(15) = -1 EBADF (Bad file descriptor) [pid 5864] close(16) = -1 EBADF (Bad file descriptor) [pid 5864] close(17) = -1 EBADF (Bad file descriptor) [pid 5864] close(18) = -1 EBADF (Bad file descriptor) [pid 5864] close(19) = -1 EBADF (Bad file descriptor) [pid 5864] close(20) = -1 EBADF (Bad file descriptor) [pid 5864] close(21) = -1 EBADF (Bad file descriptor) [pid 5864] close(22) = -1 EBADF (Bad file descriptor) [pid 5864] close(23) = -1 EBADF (Bad file descriptor) [pid 5864] close(24) = -1 EBADF (Bad file descriptor) [pid 5864] close(25) = -1 EBADF (Bad file descriptor) [pid 5864] close(26) = -1 EBADF (Bad file descriptor) [pid 5864] close(27) = -1 EBADF (Bad file descriptor) [pid 5864] close(28) = -1 EBADF (Bad file descriptor) [pid 5864] close(29) = -1 EBADF (Bad file descriptor) [pid 5864] exit_group(0) = ? [pid 5864] +++ exited with 0 +++ [pid 5841] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5865 attached [pid 5865] set_robust_list(0x555562d8e660, 24) = 0 [pid 5841] <... clone resumed>, child_tidptr=0x555562d8e650) = 3 [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5865] setpgid(0, 0) = 0 [pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5865] write(3, "1000", 4) = 4 [pid 5865] close(3) = 0 [pid 5865] read(200, executing program 0x7ffcac3213b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5865] write(1, "executing program\n", 18) = 18 [pid 5865] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5865] 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 5865] write(200, "\x01\x80\xc2\x00\x00\x02\x15\x01\x9b\x94\x2c\xdc\x08\x00\x45\x00\x00\x34\x00\x00\x00\x00\x00\x06\xba\xc5\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x4e\x26\x44\x43\x42\x41\x44\x43\x42\x41\x80\xc2\x00\x01\xfb\x4a\x00\x00\x1e\x0c\x09\x00\x01\x00\x00\x80\x00\x00\x00\x00", 66) = 66 [pid 5865] close(3) = 0 [pid 5865] close(4) = -1 EBADF (Bad file descriptor) [pid 5865] close(5) = -1 EBADF (Bad file descriptor) [pid 5865] close(6) = -1 EBADF (Bad file descriptor) [pid 5865] close(7) = -1 EBADF (Bad file descriptor) [pid 5865] close(8) = -1 EBADF (Bad file descriptor) [pid 5865] close(9) = -1 EBADF (Bad file descriptor) [pid 5865] close(10) = -1 EBADF (Bad file descriptor) [pid 5865] close(11) = -1 EBADF (Bad file descriptor) [pid 5865] close(12) = -1 EBADF (Bad file descriptor) [pid 5865] close(13) = -1 EBADF (Bad file descriptor) [pid 5865] close(14) = -1 EBADF (Bad file descriptor) [pid 5865] close(15) = -1 EBADF (Bad file descriptor) [pid 5865] close(16) = -1 EBADF (Bad file descriptor) [pid 5865] close(17) = -1 EBADF (Bad file descriptor) [pid 5865] close(18) = -1 EBADF (Bad file descriptor) [pid 5865] close(19) = -1 EBADF (Bad file descriptor) [pid 5865] close(20) = -1 EBADF (Bad file descriptor) [pid 5865] close(21) = -1 EBADF (Bad file descriptor) [pid 5865] close(22) = -1 EBADF (Bad file descriptor) [pid 5865] close(23) = -1 EBADF (Bad file descriptor) [pid 5865] close(24) = -1 EBADF (Bad file descriptor) [pid 5865] close(25) = -1 EBADF (Bad file descriptor) [pid 5865] close(26) = -1 EBADF (Bad file descriptor) [pid 5865] close(27) = -1 EBADF (Bad file descriptor) [pid 5865] close(28) = -1 EBADF (Bad file descriptor) [pid 5865] close(29) = -1 EBADF (Bad file descriptor) [pid 5865] exit_group(0) = ? [pid 5865] +++ exited with 0 +++ [pid 5841] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5841] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5866 attached , child_tidptr=0x555562d8e650) = 4 executing program [pid 5866] set_robust_list(0x555562d8e660, 24) = 0 [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5866] setpgid(0, 0) = 0 [pid 5866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1000", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] read(200, 0x7ffcac3213b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5866] write(1, "executing program\n", 18) = 18 [pid 5866] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5866] 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 [ 102.309759][ C0] sched: DL replenish lagged too much [pid 5866] write(200, "\x01\x80\xc2\x00\x00\x02\x15\x01\x9b\x94\x2c\xdc\x08\x00\x45\x00\x00\x34\x00\x00\x00\x00\x00\x06\xba\xc5\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x4e\x26\x44\x43\x42\x41\x44\x43\x42\x41\x80\xc2\x00\x01\xfb\x4a\x00\x00\x1e\x0c\x09\x00\x01\x00\x00\x80\x00\x00\x00\x00", 66) = 66 [pid 5866] close(3) = 0 [pid 5866] close(4) = -1 EBADF (Bad file descriptor) [pid 5866] close(5) = -1 EBADF (Bad file descriptor) [pid 5866] close(6) = -1 EBADF (Bad file descriptor) [pid 5866] close(7) = -1 EBADF (Bad file descriptor) [pid 5866] close(8) = -1 EBADF (Bad file descriptor) [pid 5866] close(9) = -1 EBADF (Bad file descriptor) [pid 5866] close(10) = -1 EBADF (Bad file descriptor) [pid 5866] close(11) = -1 EBADF (Bad file descriptor) [pid 5866] close(12) = -1 EBADF (Bad file descriptor) [pid 5866] close(13) = -1 EBADF (Bad file descriptor) [pid 5866] close(14) = -1 EBADF (Bad file descriptor) [pid 5866] close(15) = -1 EBADF (Bad file descriptor) [pid 5866] close(16) = -1 EBADF (Bad file descriptor) [pid 5866] close(17) = -1 EBADF (Bad file descriptor) [pid 5866] close(18) = -1 EBADF (Bad file descriptor) [pid 5866] close(19) = -1 EBADF (Bad file descriptor) [pid 5866] close(20) = -1 EBADF (Bad file descriptor) [pid 5866] close(21) = -1 EBADF (Bad file descriptor) [pid 5866] close(22) = -1 EBADF (Bad file descriptor) [pid 5866] close(23) = -1 EBADF (Bad file descriptor) [pid 5866] close(24) = -1 EBADF (Bad file descriptor) [pid 5866] close(25) = -1 EBADF (Bad file descriptor) [pid 5866] close(26) = -1 EBADF (Bad file descriptor) [pid 5866] close(27) = -1 EBADF (Bad file descriptor) [pid 5866] close(28) = -1 EBADF (Bad file descriptor) [pid 5866] close(29) = -1 EBADF (Bad file descriptor) [pid 5866] exit_group(0) = ? [pid 5866] +++ exited with 0 +++ [pid 5841] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555562d8e650) = 5 ./strace-static-x86_64: Process 5868 attached [pid 5868] set_robust_list(0x555562d8e660, 24) = 0 [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5868] setpgid(0, 0) = 0 [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5841] kill(-5, SIGKILL) = 0 [pid 5841] kill(5, SIGKILL) = 0 [pid 5868] <... openat resumed>) = ? [pid 5868] +++ killed by SIGKILL +++ [pid 5841] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555562d8e650) = 6 ./strace-static-x86_64: Process 5872 attached [pid 5872] set_robust_list(0x555562d8e660, 24) = 0 [pid 5872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] setpgid(0, 0) = 0 [pid 5872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5841] kill(-6, SIGKILL) = 0 [pid 5841] kill(6, SIGKILL) = 0 [pid 5872] <... openat resumed>) = ? [pid 5841] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5872] +++ killed by SIGKILL +++ [pid 5841] <... openat resumed>) = 3 [pid 5841] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=6, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5841] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5841] getdents64(3, 0x555562d8f6f0 /* 2 entries */, 32768) = 48 [pid 5841] getdents64(3, 0x555562d8f6f0 /* 0 entries */, 32768) = 0 [pid 5841] close(3) = 0 [ 286.637902][ T31] INFO: task kworker/1:0:24 blocked for more than 142 seconds. [ 286.660736][ T31] Not tainted 6.15.0-syzkaller-12428-gc09ef59e17c6 #0 [ 286.668066][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.