./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor467999150 <...> Warning: Permanently added '10.128.1.75' (ED25519) to the list of known hosts. execve("./syz-executor467999150", ["./syz-executor467999150"], 0x7ffed75d3160 /* 10 vars */) = 0 brk(NULL) = 0x555589bca000 brk(0x555589bcad00) = 0x555589bcad00 arch_prctl(ARCH_SET_FS, 0x555589bca380) = 0 set_tid_address(0x555589bca650) = 5837 set_robust_list(0x555589bca660, 24) = 0 rseq(0x555589bcaca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor467999150", 4096) = 27 getrandom("\x22\x9a\x52\x7a\x8a\x28\xad\x3f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555589bcad00 brk(0x555589bebd00) = 0x555589bebd00 brk(0x555589bec000) = 0x555589bec000 mprotect(0x7fbea19cb000, 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 5838 attached [pid 5838] set_robust_list(0x555589bca660, 24 [pid 5837] <... clone resumed>, child_tidptr=0x555589bca650) = 5838 [pid 5838] <... set_robust_list resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "10000000000", 11) = 11 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "20", 2) = 2 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "0", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "0", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "100", 3) = 3 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "0", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "0", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "7 4 1 3", 7) = 7 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "0", 1) = 1 [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "5838", 4) = 4 [pid 5837] close(3) = 0 [pid 5837] kill(5838, SIGKILL) = 0 [pid 5838] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5838, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5839 attached , child_tidptr=0x555589bca650) = 5839 [pid 5839] set_robust_list(0x555589bca660, 24) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5839] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5840 attached , child_tidptr=0x555589bca650) = 5840 ./strace-static-x86_64: Process 5841 attached [pid 5840] set_robust_list(0x555589bca660, 24 [pid 5837] <... clone resumed>, child_tidptr=0x555589bca650) = 5841 [pid 5841] set_robust_list(0x555589bca660, 24 [pid 5840] <... set_robust_list resumed>) = 0 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5842 attached ./strace-static-x86_64: Process 5843 attached [pid 5840] <... prctl resumed>) = 0 [pid 5837] <... clone resumed>, child_tidptr=0x555589bca650) = 5842 [pid 5842] set_robust_list(0x555589bca660, 24 [pid 5843] set_robust_list(0x555589bca660, 24 [pid 5841] <... clone resumed>, child_tidptr=0x555589bca650) = 5843 [pid 5840] setpgid(0, 0 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5843] <... set_robust_list resumed>) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5840] <... setpgid resumed>) = 0 [pid 5843] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5845 attached ./strace-static-x86_64: Process 5844 attached [pid 5843] setpgid(0, 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] set_robust_list(0x555589bca660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x555589bca650) = 5845 [pid 5837] <... clone resumed>, child_tidptr=0x555589bca650) = 5844 [pid 5844] set_robust_list(0x555589bca660, 24 [pid 5843] <... setpgid resumed>) = 0 [pid 5840] <... openat resumed>) = 3 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... set_robust_list resumed>) = 0 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5847 attached [pid 5840] write(3, "1000", 4 [pid 5843] write(3, "1000", 4 [pid 5840] <... write resumed>) = 4 [pid 5843] <... write resumed>) = 4 [pid 5840] close(3./strace-static-x86_64: Process 5846 attached [pid 5843] close(3 [pid 5840] <... close resumed>) = 0 [pid 5846] set_robust_list(0x555589bca660, 24 [pid 5845] <... prctl resumed>) = 0 executing program executing program [pid 5843] <... close resumed>) = 0 [pid 5840] write(1, "executing program\n", 18 [pid 5847] set_robust_list(0x555589bca660, 24 [pid 5845] setpgid(0, 0 [pid 5843] write(1, "executing program\n", 18 [pid 5840] <... write resumed>) = 18 [pid 5847] <... set_robust_list resumed>) = 0 [pid 5845] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x555589bca650) = 5847 [pid 5843] <... write resumed>) = 18 [pid 5840] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5846] <... set_robust_list resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5843] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY [pid 5840] <... openat resumed>) = 3 [pid 5847] <... prctl resumed>) = 0 [pid 5846] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] <... openat resumed>) = 3 [pid 5847] setpgid(0, 0 [pid 5845] <... openat resumed>) = 3 [pid 5843] io_setup(282, [pid 5840] io_setup(282, [pid 5837] <... clone resumed>, child_tidptr=0x555589bca650) = 5846 [pid 5847] <... setpgid resumed>) = 0 [pid 5845] write(3, "1000", 4./strace-static-x86_64: Process 5848 attached [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... write resumed>) = 4 [pid 5843] <... io_setup resumed>[0x7fbea1910000]) = 0 [pid 5840] <... io_setup resumed>[0x7fbea1910000]) = 0 [pid 5845] close(3 [pid 5847] <... openat resumed>) = 3 [pid 5846] <... clone resumed>, child_tidptr=0x555589bca650) = 5848 [pid 5845] <... close resumed>) = 0 [pid 5843] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5848] set_robust_list(0x555589bca660, 24 [pid 5847] write(3, "1000", 4executing program [pid 5845] write(1, "executing program\n", 18 [pid 5840] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5848] <... set_robust_list resumed>) = 0 [pid 5847] <... write resumed>) = 4 [pid 5845] <... write resumed>) = 18 [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY [pid 5847] close(3 [pid 5848] <... prctl resumed>) = 0 [pid 5845] <... openat resumed>) = 3 [pid 5848] setpgid(0, 0 [pid 5847] <... close resumed>) = 0 [pid 5845] io_setup(282, [pid 5848] <... setpgid resumed>) = 0 [pid 5847] write(1, "executing program\n", 18 [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... io_setup resumed>[0x7fbea1910000]) = 0 executing program [pid 5848] <... openat resumed>) = 3 [pid 5847] <... write resumed>) = 18 [pid 5847] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY [pid 5845] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5848] write(3, "1000", 4) = 4 [pid 5847] <... openat resumed>) = 3 [pid 5847] io_setup(282, [pid 5848] close(3 [pid 5847] <... io_setup resumed>[0x7fbea1910000]) = 0 [pid 5848] <... close resumed>) = 0 [pid 5848] write(1, "executing program\n", 18executing program ) = 18 [pid 5847] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5848] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY) = 3 [pid 5848] io_setup(282, [0x7fbea1910000]) = 0 [pid 5848] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5847] <... io_submit resumed>) = 1 [pid 5848] <... io_submit resumed>) = 1 [pid 5845] <... io_submit resumed>) = 1 [pid 5843] <... io_submit resumed>) = 1 [pid 5840] <... io_submit resumed>) = 1 [pid 5848] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_EXCL|O_NONBLOCK|O_LARGEFILE|O_NOATIME [pid 5847] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_EXCL|O_NONBLOCK|O_LARGEFILE|O_NOATIME [pid 5845] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_EXCL|O_NONBLOCK|O_LARGEFILE|O_NOATIME [pid 5843] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_EXCL|O_NONBLOCK|O_LARGEFILE|O_NOATIME [pid 5848] <... openat resumed>) = 4 [pid 5840] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_EXCL|O_NONBLOCK|O_LARGEFILE|O_NOATIME [pid 5843] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5840] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5848] dup(4 [pid 5843] dup(-1 [pid 5848] <... dup resumed>) = 5 [pid 5843] <... dup resumed>) = -1 EBADF (Bad file descriptor) [pid 5840] dup(-1 [pid 5847] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5843] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 134217728, 162129586585337856 [pid 5848] fallocate(5, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 134217728, 162129586585337856 [pid 5847] dup(-1 [pid 5843] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5840] <... dup resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5843] exit_group(0 [pid 5840] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 134217728, 162129586585337856 [pid 5847] <... dup resumed>) = -1 EBADF (Bad file descriptor) [pid 5843] <... exit_group resumed>) = ? [pid 5840] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 134217728, 162129586585337856) = -1 EBADF (Bad file descriptor) [pid 5847] exit_group(0 [pid 5840] exit_group(0 [pid 5847] <... exit_group resumed>) = ? [pid 5840] <... exit_group resumed>) = ? [pid 5845] dup(-1) = -1 EBADF (Bad file descriptor) [pid 5845] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 134217728, 162129586585337856) = -1 EBADF (Bad file descriptor) [pid 5845] exit_group(0) = ? [pid 5840] +++ exited with 0 +++ [pid 5839] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=0, si_stime=32 /* 0.32 s */} --- [pid 5839] restart_syscall(<... resuming interrupted clone ...> [pid 5843] +++ exited with 0 +++ [pid 5841] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5841] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5839] <... restart_syscall resumed>) = 0 [pid 5839] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555589bca650) = 5849 ./strace-static-x86_64: Process 5849 attached ./strace-static-x86_64: Process 5850 attached [pid 5850] set_robust_list(0x555589bca660, 24 [pid 5841] <... clone resumed>, child_tidptr=0x555589bca650) = 5850 [pid 5850] <... set_robust_list resumed>) = 0 [pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5850] setpgid(0, 0 [pid 5849] set_robust_list(0x555589bca660, 24 [pid 5850] <... setpgid resumed>) = 0 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5850] <... openat resumed>) = 3 [pid 5850] write(3, "1000", 4 [pid 5849] <... prctl resumed>) = 0 [pid 5850] <... write resumed>) = 4 [pid 5849] setpgid(0, 0 [pid 5845] +++ exited with 0 +++ [pid 5849] <... setpgid resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5850] close(3 [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... openat resumed>) = 3 [pid 5849] write(3, "1000", 4) = 4 [pid 5849] close(3 [pid 5850] <... close resumed>) = 0 [pid 5849] <... close resumed>) = 0 [pid 5850] write(1, "executing program\n", 18 [pid 5849] write(1, "executing program\n", 18executing program executing program [pid 5842] <... restart_syscall resumed>) = 0 [pid 5850] <... write resumed>) = 18 [pid 5849] <... write resumed>) = 18 [pid 5847] +++ exited with 0 +++ [pid 5849] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5850] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY [pid 5849] <... openat resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [pid 5849] io_setup(282, [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x555589bca650) = 5851 ./strace-static-x86_64: Process 5852 attached ./strace-static-x86_64: Process 5851 attached [pid 5849] <... io_setup resumed>[0x7fbea1910000]) = 0 [pid 5850] <... openat resumed>) = 3 [pid 5852] set_robust_list(0x555589bca660, 24 [pid 5849] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5844] <... clone resumed>, child_tidptr=0x555589bca650) = 5852 [pid 5852] <... set_robust_list resumed>) = 0 [pid 5850] io_setup(282, [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5852] setpgid(0, 0) = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1000", 4) = 4 [pid 5852] close(3) = 0 executing program [pid 5852] write(1, "executing program\n", 18) = 18 [pid 5852] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY) = 3 [pid 5852] io_setup(282, [0x7fbea1910000]) = 0 [pid 5852] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5851] set_robust_list(0x555589bca660, 24 [pid 5850] <... io_setup resumed>[0x7fbea1910000]) = 0 [pid 5850] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5851] <... set_robust_list resumed>) = 0 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] setpgid(0, 0) = 0 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] write(3, "1000", 4) = 4 [pid 5851] close(3) = 0 [pid 5851] write(1, "executing program\n", 18executing program ) = 18 [pid 5851] openat(AT_FDCWD, "/dev/nullb0", O_RDONLY) = 3 [pid 5851] io_setup(282, [0x7fbea1910000]) = 0 [pid 5851] io_submit(0x7fbea1910000, 202, [{aio_data=0x3a0012fb, aio_key=10073, aio_rw_flags=RWF_HIPRI|RWF_DSYNC|RWF_SYNC, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=3, aio_buf=0x200000000000, aio_nbytes=268435457834, aio_offset=16777216, aio_flags=0x10 /* IOCB_FLAG_??? */, aio_resfd=0xffffffff}, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0x3a0012fb, 0x700002759, 0x300000000, {aio_data=0x98, aio_lio_opcode=IOCB_CMD_PREAD, aio_fildes=0, aio_buf=0, aio_nbytes=0, aio_offset=0}, 0x3e8000072a, 0x1000000, NULL, 0xffffffff00000010, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ...] [pid 5846] kill(-5848, SIGKILL) = 0 [pid 5846] kill(5848, SIGKILL) = 0 [pid 5839] kill(-5849, SIGKILL) = 0 [pid 5839] kill(5849, SIGKILL) = 0 [pid 5841] kill(-5850, SIGKILL) = 0 [pid 5841] kill(5850, SIGKILL) = 0 [pid 5846] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5846] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5846] getdents64(3, 0x555589bcb6f0 /* 2 entries */, 32768) = 48 [pid 5846] getdents64(3, 0x555589bcb6f0 /* 0 entries */, 32768) = 0 [pid 5846] close(3) = 0 [pid 5844] kill(-5852, SIGKILL) = 0 [pid 5842] kill(-5851, SIGKILL [pid 5844] kill(5852, SIGKILL [pid 5842] <... kill resumed>) = 0 [pid 5844] <... kill resumed>) = 0 [pid 5842] kill(5851, SIGKILL) = 0 [pid 5839] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5839] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5839] getdents64(3, 0x555589bcb6f0 /* 2 entries */, 32768) = 48 [pid 5839] getdents64(3, 0x555589bcb6f0 /* 0 entries */, 32768) = 0 [pid 5839] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5841] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5841] getdents64(3, 0x555589bcb6f0 /* 2 entries */, 32768) = 48 [pid 5841] getdents64(3, 0x555589bcb6f0 /* 0 entries */, 32768) = 0 [pid 5841] close(3) = 0 [pid 5844] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5844] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5844] getdents64(3, 0x555589bcb6f0 /* 2 entries */, 32768) = 48 [pid 5844] getdents64(3, [pid 5842] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5844] <... getdents64 resumed>0x555589bcb6f0 /* 0 entries */, 32768) = 0 [pid 5842] <... openat resumed>) = 3 [pid 5844] close(3) = 0 [pid 5842] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5842] getdents64(3, 0x555589bcb6f0 /* 2 entries */, 32768) = 48 [pid 5842] getdents64(3, 0x555589bcb6f0 /* 0 entries */, 32768) = 0 [pid 5842] close(3) = 0 [ 272.306084][ T31] INFO: task syz-executor467:5849 blocked for more than 143 seconds. [ 272.314287][ T31] Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 [ 272.355912][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 272.364664][ T31] task:syz-executor467 state:D stack:26936 pid:5849 tgid:5849 ppid:5839 task_flags:0x400040 flags:0x00004006 [ 272.394779][ T31] Call Trace: [ 272.398237][ T31] [ 272.401202][ T31] __schedule+0x16e2/0x4cd0 [ 272.405766][ T31] ? blk_mq_flush_plug_list+0x10e/0x1760 [ 272.411522][ T31] ? __lock_acquire+0xaac/0xd20 [ 272.416787][ T31] ? __pfx_blk_mq_flush_plug_list+0x10/0x10 [ 272.422735][ T31] ? schedule+0x165/0x360 [ 272.427623][ T31] ? __pfx___schedule+0x10/0x10 [ 272.432671][ T31] ? schedule+0x91/0x360 [ 272.437058][ T31] schedule+0x165/0x360 [ 272.441269][ T31] ? rwsem_down_read_slowpath+0x568/0x880 [ 272.447239][ T31] schedule_preempt_disabled+0x13/0x30 [ 272.452750][ T31] rwsem_down_read_slowpath+0x552/0x880 [ 272.458471][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 272.464599][ T31] ? blkdev_read_iter+0x2f8/0x440 [ 272.469902][ T31] ? end_current_label_crit_section+0x152/0x180 [ 272.476281][ T31] down_read+0x98/0x2e0 [ 272.480478][ T31] blkdev_read_iter+0x2f8/0x440 [ 272.485377][ T31] aio_read+0x30e/0x470 [ 272.489739][ T31] ? __pfx_aio_read+0x10/0x10 [ 272.494472][ T31] ? __might_fault+0xb0/0x130 [ 272.499315][ T31] io_submit_one+0x6ec/0x1240 [ 272.504038][ T31] ? __lock_acquire+0xaac/0xd20 [ 272.508962][ T31] ? __pfx_io_submit_one+0x10/0x10 [ 272.514249][ T31] ? __might_fault+0xb0/0x130 [ 272.519068][ T31] ? __might_fault+0xb0/0x130 [ 272.523786][ T31] __se_sys_io_submit+0x185/0x2f0 [ 272.528906][ T31] ? __pfx___se_sys_io_submit+0x10/0x10 [ 272.534503][ T31] do_syscall_64+0xf6/0x210 [ 272.545853][ T31] ? clear_bhb_loop+0x45/0xa0 [ 272.550598][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 272.565854][ T31] RIP: 0033:0x7fbea1957ea9 [ 272.570358][ T31] RSP: 002b:00007ffe0d65d0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 272.595899][ T31] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007fbea1957ea9 [ 272.603947][ T31] RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007fbea1910000 [ 272.625910][ T31] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000 [ 272.633965][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe0d65d110 [ 272.665859][ T31] R13: 00007ffe0d65d130 R14: 000000000001a993 R15: 00007ffe0d65d10c [ 272.673938][ T31] [ 272.685880][ T31] INFO: task syz-executor467:5850 blocked for more than 143 seconds. [ 272.694024][ T31] Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 [ 272.710662][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 272.736362][ T31] task:syz-executor467 state:D stack:26936 pid:5850 tgid:5850 ppid:5841 task_flags:0x400040 flags:0x00004006 [ 272.773646][ T31] Call Trace: [ 272.777042][ T31] [ 272.780005][ T31] __schedule+0x16e2/0x4cd0 [ 272.784541][ T31] ? blk_mq_flush_plug_list+0x10e/0x1760 [ 272.796226][ T31] ? __lock_acquire+0xaac/0xd20 [ 272.801316][ T31] ? __pfx_blk_mq_flush_plug_list+0x10/0x10 [ 272.807290][ T31] ? schedule+0x165/0x360 [ 272.815912][ T31] ? __pfx___schedule+0x10/0x10 [ 272.820841][ T31] ? schedule+0x91/0x360 [ 272.830691][ T31] schedule+0x165/0x360 [ 272.834917][ T31] ? rwsem_down_read_slowpath+0x568/0x880 [ 272.855909][ T31] schedule_preempt_disabled+0x13/0x30 [ 272.861444][ T31] rwsem_down_read_slowpath+0x552/0x880 [ 272.873996][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 272.885867][ T31] ? blkdev_read_iter+0x2f8/0x440 [ 272.890970][ T31] ? end_current_label_crit_section+0x152/0x180 [ 272.915628][ T31] down_read+0x98/0x2e0 [ 272.920303][ T31] blkdev_read_iter+0x2f8/0x440 [ 272.925214][ T31] aio_read+0x30e/0x470 [ 272.955935][ T31] ? __pfx_aio_read+0x10/0x10 [ 272.960728][ T31] ? __might_fault+0xb0/0x130 [ 272.965463][ T31] io_submit_one+0x6ec/0x1240 [ 272.986107][ T31] ? __lock_acquire+0xaac/0xd20 [ 272.991062][ T31] ? __pfx_io_submit_one+0x10/0x10 [ 273.005881][ T31] ? __might_fault+0xb0/0x130 [ 273.010744][ T31] ? __might_fault+0xb0/0x130 [ 273.015478][ T31] __se_sys_io_submit+0x185/0x2f0 [ 273.020642][ T31] ? __pfx___se_sys_io_submit+0x10/0x10 [ 273.026291][ T31] do_syscall_64+0xf6/0x210 [ 273.030831][ T31] ? clear_bhb_loop+0x45/0xa0 [ 273.035537][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 273.041560][ T31] RIP: 0033:0x7fbea1957ea9 [ 273.046096][ T31] RSP: 002b:00007ffe0d65d0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 273.054549][ T31] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007fbea1957ea9 [ 273.062648][ T31] RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007fbea1910000 [ 273.070699][ T31] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000 [ 273.078803][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe0d65d110 [ 273.086859][ T31] R13: 00007ffe0d65d130 R14: 000000000001a9ab R15: 00007ffe0d65d10c [ 273.094880][ T31] [ 273.098092][ T31] INFO: task syz-executor467:5851 blocked for more than 144 seconds. [ 273.109419][ T31] Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 [ 273.125923][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 273.134648][ T31] task:syz-executor467 state:D stack:26936 pid:5851 tgid:5851 ppid:5842 task_flags:0x400040 flags:0x00004006 [ 273.166049][ T31] Call Trace: [ 273.169413][ T31] [ 273.172381][ T31] __schedule+0x16e2/0x4cd0 [ 273.195862][ T31] ? blk_mq_flush_plug_list+0x10e/0x1760 [ 273.201589][ T31] ? __lock_acquire+0xaac/0xd20 [ 273.215932][ T31] ? __pfx_blk_mq_flush_plug_list+0x10/0x10 [ 273.221906][ T31] ? schedule+0x165/0x360 [ 273.235535][ T31] ? __pfx___schedule+0x10/0x10 [ 273.240545][ T31] ? schedule+0x91/0x360 [ 273.244830][ T31] schedule+0x165/0x360 [ 273.249100][ T31] ? rwsem_down_read_slowpath+0x568/0x880 [ 273.254862][ T31] schedule_preempt_disabled+0x13/0x30 [ 273.260396][ T31] rwsem_down_read_slowpath+0x552/0x880 [ 273.266740][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 273.272869][ T31] ? blkdev_read_iter+0x2f8/0x440 [ 273.278568][ T31] ? end_current_label_crit_section+0x152/0x180 [ 273.284864][ T31] down_read+0x98/0x2e0 [ 273.289447][ T31] blkdev_read_iter+0x2f8/0x440 [ 273.294446][ T31] aio_read+0x30e/0x470 [ 273.298925][ T31] ? __pfx_aio_read+0x10/0x10 [ 273.303668][ T31] ? __might_fault+0xb0/0x130 [ 273.308790][ T31] io_submit_one+0x6ec/0x1240 [ 273.313780][ T31] ? __lock_acquire+0xaac/0xd20 [ 273.318960][ T31] ? __pfx_io_submit_one+0x10/0x10 [ 273.324119][ T31] ? __might_fault+0xb0/0x130 [ 273.329151][ T31] ? __might_fault+0xb0/0x130 [ 273.333882][ T31] __se_sys_io_submit+0x185/0x2f0 [ 273.339334][ T31] ? __pfx___se_sys_io_submit+0x10/0x10 [ 273.344942][ T31] do_syscall_64+0xf6/0x210 [ 273.349968][ T31] ? clear_bhb_loop+0x45/0xa0 [ 273.354686][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 273.364201][ T31] RIP: 0033:0x7fbea1957ea9 [ 273.368970][ T31] RSP: 002b:00007ffe0d65d0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 273.377744][ T31] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007fbea1957ea9 [ 273.385751][ T31] RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007fbea1910000 [ 273.394357][ T31] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000 [ 273.402676][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe0d65d110 [ 273.411012][ T31] R13: 00007ffe0d65d130 R14: 000000000001a9b9 R15: 00007ffe0d65d10c [ 273.419338][ T31] [ 273.422457][ T31] INFO: task syz-executor467:5852 blocked for more than 144 seconds. [ 273.431022][ T31] Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 [ 273.439018][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 273.448021][ T31] task:syz-executor467 state:D stack:26936 pid:5852 tgid:5852 ppid:5844 task_flags:0x400040 flags:0x00004006 [ 273.460345][ T31] Call Trace: [ 273.463654][ T31] [ 273.467998][ T31] __schedule+0x16e2/0x4cd0 [ 273.472553][ T31] ? blk_mq_flush_plug_list+0x10e/0x1760 [ 273.478756][ T31] ? __lock_acquire+0xaac/0xd20 [ 273.483659][ T31] ? __pfx_blk_mq_flush_plug_list+0x10/0x10 [ 273.490131][ T31] ? schedule+0x165/0x360 [ 273.494505][ T31] ? __pfx___schedule+0x10/0x10 [ 273.500158][ T31] ? schedule+0x91/0x360 [ 273.504449][ T31] schedule+0x165/0x360 [ 273.509091][ T31] ? rwsem_down_read_slowpath+0x568/0x880 [ 273.514856][ T31] schedule_preempt_disabled+0x13/0x30 [ 273.520837][ T31] rwsem_down_read_slowpath+0x552/0x880 [ 273.526712][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 273.532830][ T31] ? blkdev_read_iter+0x2f8/0x440 [ 273.538377][ T31] ? end_current_label_crit_section+0x152/0x180 [ 273.544666][ T31] down_read+0x98/0x2e0 [ 273.549296][ T31] blkdev_read_iter+0x2f8/0x440 [ 273.554211][ T31] aio_read+0x30e/0x470 [ 273.558902][ T31] ? __pfx_aio_read+0x10/0x10 [ 273.563722][ T31] ? __might_fault+0xb0/0x130 [ 273.568941][ T31] io_submit_one+0x6ec/0x1240 [ 273.573674][ T31] ? __lock_acquire+0xaac/0xd20 [ 273.579079][ T31] ? __pfx_io_submit_one+0x10/0x10 [ 273.584326][ T31] ? __might_fault+0xb0/0x130 [ 273.589506][ T31] ? __might_fault+0xb0/0x130 [ 273.594242][ T31] __se_sys_io_submit+0x185/0x2f0 [ 273.602361][ T31] ? __pfx___se_sys_io_submit+0x10/0x10 [ 273.608058][ T31] do_syscall_64+0xf6/0x210 [ 273.612599][ T31] ? clear_bhb_loop+0x45/0xa0 [ 273.617379][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 273.623305][ T31] RIP: 0033:0x7fbea1957ea9 [ 273.627816][ T31] RSP: 002b:00007ffe0d65d0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 273.636302][ T31] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007fbea1957ea9 [ 273.644304][ T31] RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007fbea1910000 [ 273.652479][ T31] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000 [ 273.660529][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe0d65d110 [ 273.668626][ T31] R13: 00007ffe0d65d130 R14: 000000000001a9bf R15: 00007ffe0d65d10c [ 273.676708][ T31] [ 273.679789][ T31] [ 273.679789][ T31] Showing all locks held in the system: [ 273.696864][ T31] 1 lock held by khungtaskd/31: [ 273.701770][ T31] #0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 273.736654][ T31] 2 locks held by getty/5585: [ 273.741414][ T31] #0: ffff88802ffee0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 273.751351][ T31] #1: ffffc9000333b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 273.761569][ T31] 2 locks held by syz-executor467/5848: [ 273.767216][ T31] 1 lock held by syz-executor467/5849: [ 273.772698][ T31] #0: ffff8880228887a0 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: blkdev_read_iter+0x2f8/0x440 [ 273.783556][ T31] 1 lock held by syz-executor467/5850: [ 273.789114][ T31] #0: ffff8880228887a0 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: blkdev_read_iter+0x2f8/0x440 [ 273.800000][ T31] 1 lock held by syz-executor467/5851: [ 273.805523][ T31] #0: ffff8880228887a0 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: blkdev_read_iter+0x2f8/0x440 [ 273.816398][ T31] 1 lock held by syz-executor467/5852: [ 273.821885][ T31] #0: ffff8880228887a0 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: blkdev_read_iter+0x2f8/0x440 [ 273.832884][ T31] [ 273.835235][ T31] ============================================= [ 273.835235][ T31] [ 273.845542][ T31] NMI backtrace for cpu 0 [ 273.845572][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 PREEMPT(full) [ 273.845613][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 273.845633][ T31] Call Trace: [ 273.845646][ T31] [ 273.845661][ T31] dump_stack_lvl+0x189/0x250 [ 273.845709][ T31] ? __wake_up_klogd+0xd9/0x110 [ 273.845754][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 273.845804][ T31] ? __pfx__printk+0x10/0x10 [ 273.845837][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 273.845871][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 273.845898][ T31] ? _printk+0xcf/0x120 [ 273.845921][ T31] ? __pfx__printk+0x10/0x10 [ 273.845943][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 273.845965][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 273.845997][ T31] watchdog+0xfee/0x1030 [ 273.846023][ T31] ? watchdog+0x1de/0x1030 [ 273.846056][ T31] kthread+0x70e/0x8a0 [ 273.846084][ T31] ? __pfx_watchdog+0x10/0x10 [ 273.846107][ T31] ? __pfx_kthread+0x10/0x10 [ 273.846139][ T31] ? __pfx_kthread+0x10/0x10 [ 273.846161][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 273.846180][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 273.846198][ T31] ? __pfx_kthread+0x10/0x10 [ 273.846217][ T31] ret_from_fork+0x4b/0x80 [ 273.846234][ T31] ? __pfx_kthread+0x10/0x10 [ 273.846255][ T31] ret_from_fork_asm+0x1a/0x30 [ 273.846287][ T31] [ 273.987416][ T31] Sending NMI from CPU 0 to CPUs 1: [ 273.992690][ C1] NMI backtrace for cpu 1 [ 273.992707][ C1] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 PREEMPT(full) [ 273.992726][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 273.992737][ C1] Workqueue: events_unbound toggle_allocation_gate [ 273.992763][ C1] RIP: 0010:lockdep_hardirqs_on_prepare+0x107/0x2a0 [ 273.992790][ C1] Code: f0 0a 00 00 45 31 ff 4d 89 f4 eb 13 49 ff c7 48 63 83 e8 0a 00 00 49 83 c4 28 49 39 c7 7d 44 49 83 ff 31 73 2d 41 8b 44 24 20 00 00 04 00 74 db 25 00 00 03 00 83 f8 01 ba 03 00 00 00 83 da [ 273.992804][ C1] RSP: 0018:ffffc900001276c0 EFLAGS: 00000087 [ 273.992817][ C1] RAX: 0000000000050003 RBX: ffff88801c6e0000 RCX: ffffffff931e7578 [ 273.992829][ C1] RDX: 0000000000000002 RSI: ffff88801c6e0b18 RDI: ffff88801c6e0000 [ 273.992840][ C1] RBP: ffffc90000127860 R08: ffffffff8f7ed377 R09: 1ffffffff1efda6e [ 273.992852][ C1] R10: dffffc0000000000 R11: fffffbfff1efda6f R12: ffff88801c6e0b40 [ 273.992864][ C1] R13: dffffc0000000000 R14: ffff88801c6e0af0 R15: 0000000000000002 [ 273.992875][ C1] FS: 0000000000000000(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000 [ 273.992888][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 273.992899][ C1] CR2: 0000564f24f42600 CR3: 000000000dd36000 CR4: 00000000003526f0 [ 273.992914][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 273.992923][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 273.992933][ C1] Call Trace: [ 273.992939][ C1] [ 273.992947][ C1] ? __pfx_do_sync_core+0x10/0x10 [ 273.992970][ C1] trace_hardirqs_on+0x28/0x40 [ 273.992987][ C1] smp_call_function_many_cond+0xac1/0x11c0 [ 273.993017][ C1] ? __pfx_do_sync_core+0x10/0x10 [ 273.993041][ C1] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 273.993065][ C1] ? __pfx___text_poke+0x10/0x10 [ 273.993087][ C1] ? preempt_schedule_thunk+0x16/0x30 [ 273.993108][ C1] ? __pfx_do_sync_core+0x10/0x10 [ 273.993131][ C1] on_each_cpu_cond_mask+0x3f/0x80 [ 273.993155][ C1] text_poke_bp_batch+0x84d/0x940 [ 273.993182][ C1] ? kmem_cache_alloc_bulk_noprof+0x149/0x790 [ 273.993205][ C1] ? __pfx_text_poke_bp_batch+0x10/0x10 [ 273.993228][ C1] ? text_poke_queue+0x140/0x190 [ 273.993252][ C1] ? arch_jump_label_transform_queue+0x97/0x110 [ 273.993272][ C1] text_poke_finish+0x30/0x50 [ 273.993294][ C1] arch_jump_label_transform_apply+0x1c/0x30 [ 273.993310][ C1] static_key_enable_cpuslocked+0x128/0x250 [ 273.993335][ C1] static_key_enable+0x1a/0x20 [ 273.993356][ C1] toggle_allocation_gate+0xad/0x240 [ 273.993383][ C1] ? __pfx_toggle_allocation_gate+0x10/0x10 [ 273.993403][ C1] ? process_scheduled_works+0x9ec/0x17a0 [ 273.993432][ C1] ? process_scheduled_works+0x9ec/0x17a0 [ 273.993456][ C1] ? process_scheduled_works+0x9ec/0x17a0 [ 273.993481][ C1] process_scheduled_works+0xadb/0x17a0 [ 273.993517][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 273.993549][ C1] worker_thread+0x8a0/0xda0 [ 273.993574][ C1] kthread+0x70e/0x8a0 [ 273.993594][ C1] ? __pfx_worker_thread+0x10/0x10 [ 273.993609][ C1] ? __pfx_kthread+0x10/0x10 [ 273.993627][ C1] ? __pfx_kthread+0x10/0x10 [ 273.993644][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 273.993659][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 273.993677][ C1] ? __pfx_kthread+0x10/0x10 [ 273.993694][ C1] ret_from_fork+0x4b/0x80 [ 273.993710][ C1] ? __pfx_kthread+0x10/0x10 [ 273.993728][ C1] ret_from_fork_asm+0x1a/0x30 [ 273.993749][ C1] [ 273.994700][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 274.344033][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 PREEMPT(full) [ 274.355855][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 274.365916][ T31] Call Trace: [ 274.369235][ T31] [ 274.372184][ T31] dump_stack_lvl+0x99/0x250 [ 274.376800][ T31] ? __asan_memcpy+0x40/0x70 [ 274.381405][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 274.386638][ T31] ? __pfx__printk+0x10/0x10 [ 274.391264][ T31] panic+0x2db/0x790 [ 274.395237][ T31] ? __pfx_panic+0x10/0x10 [ 274.399683][ T31] ? __pfx_delay_tsc+0x10/0x10 [ 274.404474][ T31] ? nmi_backtrace_stall_check+0x433/0x440 [ 274.410304][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 274.415690][ T31] ? nmi_trigger_cpumask_backtrace+0x2b6/0x300 [ 274.421883][ T31] watchdog+0x102d/0x1030 [ 274.426231][ T31] ? watchdog+0x1de/0x1030 [ 274.430662][ T31] kthread+0x70e/0x8a0 [ 274.434768][ T31] ? __pfx_watchdog+0x10/0x10 [ 274.439478][ T31] ? __pfx_kthread+0x10/0x10 [ 274.444107][ T31] ? __pfx_kthread+0x10/0x10 [ 274.448720][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 274.453927][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 274.459135][ T31] ? __pfx_kthread+0x10/0x10 [ 274.463738][ T31] ret_from_fork+0x4b/0x80 [ 274.468162][ T31] ? __pfx_kthread+0x10/0x10 [ 274.472761][ T31] ret_from_fork_asm+0x1a/0x30 [ 274.477544][ T31] [ 274.480864][ T31] Kernel Offset: disabled [ 274.485201][ T31] Rebooting in 86400 seconds..