./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor277028281 <...> Warning: Permanently added '10.128.0.148' (ED25519) to the list of known hosts. execve("./syz-executor277028281", ["./syz-executor277028281"], 0x7ffc08814570 /* 10 vars */) = 0 brk(NULL) = 0x55555676d000 brk(0x55555676dd00) = 0x55555676dd00 arch_prctl(ARCH_SET_FS, 0x55555676d380) = 0 set_tid_address(0x55555676d650) = 5069 set_robust_list(0x55555676d660, 24) = 0 rseq(0x55555676dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor277028281", 4096) = 27 getrandom("\xd0\xef\xe5\xa3\xe4\x19\xe7\x4c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555676dd00 brk(0x55555678ed00) = 0x55555678ed00 brk(0x55555678f000) = 0x55555678f000 mprotect(0x7fbef7494000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5070 attached , child_tidptr=0x55555676d650) = 5070 [pid 5070] set_robust_list(0x55555676d660, 24) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5071 attached [pid 5070] <... clone resumed>, child_tidptr=0x55555676d650) = 5071 [pid 5071] set_robust_list(0x55555676d660, 24) = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5072 attached ) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555676d650) = 5072 [pid 5072] set_robust_list(0x55555676d660, 24 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... set_robust_list resumed>) = 0 [pid 5071] setpgid(0, 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5074 attached ./strace-static-x86_64: Process 5073 attached , child_tidptr=0x55555676d650) = 5073 [pid 5071] <... setpgid resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555676d650) = 5074 [pid 5073] set_robust_list(0x55555676d660, 24 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] set_robust_list(0x55555676d660, 24 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... set_robust_list resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5075 attached ) = 0 [pid 5071] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5076 attached [pid 5071] write(3, "1000", 4 [pid 5069] <... clone resumed>, child_tidptr=0x55555676d650) = 5075 [pid 5074] <... clone resumed>, child_tidptr=0x55555676d650) = 5076 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] set_robust_list(0x55555676d660, 24 [pid 5073] setpgid(0, 0 [pid 5076] set_robust_list(0x55555676d660, 24 [pid 5071] <... write resumed>) = 4 ./strace-static-x86_64: Process 5077 attached [pid 5076] <... set_robust_list resumed>) = 0 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5073] <... setpgid resumed>) = 0 [pid 5071] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x55555676d650) = 5077 [pid 5077] set_robust_list(0x55555676d660, 24 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... prctl resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5076] setpgid(0, 0 [pid 5073] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME./strace-static-x86_64: Process 5079 attached ./strace-static-x86_64: Process 5078 attached [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] set_robust_list(0x55555676d660, 24 [pid 5076] <... setpgid resumed>) = 0 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] write(3, "1000", 4 [pid 5071] <... openat resumed>) = 3 [pid 5069] <... clone resumed>, child_tidptr=0x55555676d650) = 5079 [pid 5079] set_robust_list(0x55555676d660, 24 [pid 5078] <... prctl resumed>) = 0 [pid 5073] <... write resumed>) = 4 [pid 5079] <... set_robust_list resumed>) = 0 [pid 5078] setpgid(0, 0 [pid 5076] <... openat resumed>) = 3 [pid 5071] dup(3./strace-static-x86_64: Process 5080 attached [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... clone resumed>, child_tidptr=0x55555676d650) = 5078 [pid 5073] close(3 [pid 5078] <... setpgid resumed>) = 0 [pid 5076] write(3, "1000", 4 [pid 5073] <... close resumed>) = 0 [pid 5071] <... dup resumed>) = 4 [pid 5080] set_robust_list(0x55555676d660, 24 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... clone resumed>, child_tidptr=0x55555676d650) = 5080 [pid 5076] <... write resumed>) = 4 [pid 5073] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5071] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5080] <... set_robust_list resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] dup(3 [pid 5080] <... prctl resumed>) = 0 [pid 5073] <... dup resumed>) = 4 [pid 5080] setpgid(0, 0 [pid 5073] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5080] <... setpgid resumed>) = 0 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5081 attached [pid 5078] <... openat resumed>) = 3 [pid 5076] dup(3 [pid 5079] <... clone resumed>, child_tidptr=0x55555676d650) = 5081 [pid 5078] write(3, "1000", 4 [pid 5076] <... dup resumed>) = 4 [pid 5081] set_robust_list(0x55555676d660, 24 [pid 5080] <... openat resumed>) = 3 [pid 5078] <... write resumed>) = 4 [pid 5076] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5080] write(3, "1000", 4 [pid 5078] close(3 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... write resumed>) = 4 [pid 5078] <... close resumed>) = 0 [pid 5081] <... prctl resumed>) = 0 [pid 5080] close(3 [pid 5078] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5081] setpgid(0, 0 [pid 5078] <... openat resumed>) = 3 [pid 5081] <... setpgid resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5078] dup(3 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5078] <... dup resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5078] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5081] write(3, "1000", 4) = 4 [pid 5080] dup(3 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5080] <... dup resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5080] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5081] dup(3) = 4 [pid 5081] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5070] kill(-5071, SIGKILL) = 0 [pid 5070] kill(5071, SIGKILL) = 0 [pid 5072] kill(-5073, SIGKILL) = 0 [pid 5072] kill(5073, SIGKILL) = 0 [pid 5074] kill(-5076, SIGKILL) = 0 [pid 5074] kill(5076, SIGKILL) = 0 [pid 5075] kill(-5078, SIGKILL) = 0 [pid 5075] kill(5078, SIGKILL) = 0 [pid 5079] kill(-5081, SIGKILL [pid 5077] kill(-5080, SIGKILL) = 0 [pid 5077] kill(5080, SIGKILL) = 0 [pid 5079] <... kill resumed>) = 0 [pid 5079] kill(5081, SIGKILL) = 0 [pid 5079] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5077] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5077] newfstatat(3, "", [pid 5074] newfstatat(3, "", [pid 5079] <... getdents64 resumed>0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5077] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5074] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5075] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] getdents64(3, [pid 5074] getdents64(3, [pid 5079] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5075] newfstatat(3, "", [pid 5074] <... getdents64 resumed>0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5079] close(3 [pid 5077] getdents64(3, [pid 5075] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5074] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5075] getdents64(3, [pid 5074] <... getdents64 resumed>0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5070] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5074] close(3 [pid 5070] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5074] <... close resumed>) = 0 [pid 5070] newfstatat(3, "", [pid 5075] <... getdents64 resumed>0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 5070] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5075] <... close resumed>) = 0 [pid 5070] getdents64(3, 0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, 0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5072] getdents64(3, 0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(3, 0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [ 76.085916][ T23] cfg80211: failed to load regulatory.db [pid 5073] <... fallocate resumed>) = ? [pid 5073] +++ killed by SIGKILL +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5073, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4989 /* 49.89 s */} --- [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached , child_tidptr=0x55555676d650) = 5098 [pid 5098] set_robust_list(0x55555676d660, 24) = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME) = 3 [pid 5098] dup(3) = 4 [pid 5098] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5072] kill(-5098, SIGKILL) = 0 [pid 5072] kill(5098, SIGKILL) = 0 [pid 5072] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5072] getdents64(3, 0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(3, 0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5071] <... fallocate resumed>) = ? [pid 5071] +++ killed by SIGKILL +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5071, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4773 /* 47.73 s */} --- [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached , child_tidptr=0x55555676d650) = 5099 [pid 5099] set_robust_list(0x55555676d660, 24) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5099] setpgid(0, 0) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5099] write(3, "1000", 4) = 4 [pid 5099] close(3) = 0 [pid 5099] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME) = 3 [pid 5099] dup(3) = 4 [pid 5099] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5070] kill(-5099, SIGKILL) = 0 [pid 5070] kill(5099, SIGKILL) = 0 [pid 5070] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5070] getdents64(3, 0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, 0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5076] <... fallocate resumed>) = ? [pid 5076] +++ killed by SIGKILL +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5076, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4851 /* 48.51 s */} --- [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5106 attached , child_tidptr=0x55555676d650) = 5106 [pid 5106] set_robust_list(0x55555676d660, 24) = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] setpgid(0, 0) = 0 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5106] write(3, "1000", 4) = 4 [pid 5106] close(3) = 0 [pid 5106] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME) = 3 [pid 5106] dup(3) = 4 [pid 5106] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5074] kill(-5106, SIGKILL) = 0 [pid 5074] kill(5106, SIGKILL) = 0 [pid 5074] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5074] getdents64(3, 0x55555676e6f0 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(3, 0x55555676e6f0 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [ 285.997638][ T29] INFO: task syz-executor277:5080 blocked for more than 143 seconds. [ 286.006053][ T29] Not tainted 6.7.0-rc8-syzkaller-00177-g52b1853b080a #0 [ 286.013885][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.022894][ T29] task:syz-executor277 state:D stack:28208 pid:5080 tgid:5080 ppid:5077 flags:0x00004006 [ 286.033330][ T29] Call Trace: [ 286.036846][ T29] [ 286.040076][ T29] __schedule+0xedb/0x5af0 [ 286.044816][ T29] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 286.051113][ T29] ? hlock_class+0x4e/0x130 [ 286.055632][ T29] ? mark_lock+0xb5/0xc50 [ 286.060027][ T29] ? io_schedule_timeout+0x150/0x150 [ 286.065330][ T29] ? schedule+0x1fc/0x270 [ 286.069977][ T29] ? reacquire_held_locks+0x4c0/0x4c0 [ 286.075633][ T29] ? __down_write_common+0x899/0x1400 [ 286.081342][ T29] schedule+0xe9/0x270 [ 286.085715][ T29] schedule_preempt_disabled+0x13/0x20 [ 286.091479][ T29] __down_write_common+0x948/0x1400 [ 286.096957][ T29] ? aa_file_perm+0x4f2/0x1000 [ 286.102056][ T29] ? up_write+0x510/0x510 [ 286.106665][ T29] ? lock_sync+0x190/0x190 [ 286.111293][ T29] ? preempt_count_sub+0x160/0x160 [ 286.116421][ T29] ? ptrace_notify+0xf4/0x130 [ 286.121158][ T29] blkdev_fallocate+0x1e9/0x450 [ 286.126021][ T29] ? file_to_blk_mode+0x1a0/0x1a0 [ 286.131256][ T29] vfs_fallocate+0x46c/0xe50 [ 286.136111][ T29] __x64_sys_fallocate+0xd5/0x140 [ 286.141492][ T29] do_syscall_64+0x40/0x110 [ 286.146283][ T29] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 286.152453][ T29] RIP: 0033:0x7fbef7421b29 [ 286.157126][ T29] RSP: 002b:00007ffc57b0f778 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 286.165822][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbef7421b29 [ 286.174083][ T29] RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 [ 286.182375][ T29] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 286.190387][ T29] R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001 [ 286.198712][ T29] R13: 00007ffc57b0f998 R14: 00007ffc57b0f7a0 R15: 00007ffc57b0f790 [ 286.206942][ T29] [ 286.210264][ T29] INFO: task syz-executor277:5081 blocked for more than 143 seconds. [ 286.218645][ T29] Not tainted 6.7.0-rc8-syzkaller-00177-g52b1853b080a #0 [ 286.226425][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.235389][ T29] task:syz-executor277 state:D stack:28208 pid:5081 tgid:5081 ppid:5079 flags:0x00004006 [ 286.245624][ T29] Call Trace: [ 286.249216][ T29] [ 286.252432][ T29] __schedule+0xedb/0x5af0 [ 286.256872][ T29] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 286.263106][ T29] ? hlock_class+0x4e/0x130 [ 286.267653][ T29] ? mark_lock+0xb5/0xc50 [ 286.272285][ T29] ? io_schedule_timeout+0x150/0x150 [ 286.277906][ T29] ? schedule+0x1fc/0x270 [ 286.282538][ T29] ? reacquire_held_locks+0x4c0/0x4c0 [ 286.288236][ T29] ? __down_write_common+0x899/0x1400 [ 286.305713][ T29] schedule+0xe9/0x270 [ 286.309917][ T29] schedule_preempt_disabled+0x13/0x20 [ 286.315411][ T29] __down_write_common+0x948/0x1400 [ 286.321006][ T29] ? aa_file_perm+0x4f2/0x1000 [ 286.326058][ T29] ? up_write+0x510/0x510 [ 286.330749][ T29] ? lock_sync+0x190/0x190 [ 286.335446][ T29] ? preempt_count_sub+0x160/0x160 [ 286.340883][ T29] ? ptrace_notify+0xf4/0x130 [ 286.345856][ T29] blkdev_fallocate+0x1e9/0x450 [ 286.350993][ T29] ? file_to_blk_mode+0x1a0/0x1a0 [ 286.356310][ T29] vfs_fallocate+0x46c/0xe50 [ 286.360969][ T29] __x64_sys_fallocate+0xd5/0x140 [ 286.366012][ T29] do_syscall_64+0x40/0x110 [ 286.370652][ T29] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 286.376841][ T29] RIP: 0033:0x7fbef7421b29 [ 286.381620][ T29] RSP: 002b:00007ffc57b0f778 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 286.390305][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbef7421b29 [ 286.398699][ T29] RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 [ 286.406955][ T29] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 286.415180][ T29] R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001 [ 286.423507][ T29] R13: 00007ffc57b0f998 R14: 00007ffc57b0f7a0 R15: 00007ffc57b0f790 [ 286.431814][ T29] [ 286.434865][ T29] INFO: task syz-executor277:5098 blocked for more than 143 seconds. [ 286.442976][ T29] Not tainted 6.7.0-rc8-syzkaller-00177-g52b1853b080a #0 [ 286.450825][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.459586][ T29] task:syz-executor277 state:D stack:27856 pid:5098 tgid:5098 ppid:5072 flags:0x00004006 [ 286.470101][ T29] Call Trace: [ 286.473474][ T29] [ 286.476496][ T29] __schedule+0xedb/0x5af0 [ 286.481355][ T29] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 286.487654][ T29] ? hlock_class+0x4e/0x130 [ 286.492467][ T29] ? mark_lock+0xb5/0xc50 [ 286.497119][ T29] ? io_schedule_timeout+0x150/0x150 [ 286.502703][ T29] ? schedule+0x1fc/0x270 [ 286.507810][ T29] ? reacquire_held_locks+0x4c0/0x4c0 [ 286.513201][ T29] ? __down_write_common+0x899/0x1400 [ 286.518825][ T29] schedule+0xe9/0x270 [ 286.522920][ T29] schedule_preempt_disabled+0x13/0x20 [ 286.528427][ T29] __down_write_common+0x948/0x1400 [ 286.533637][ T29] ? aa_file_perm+0x4f2/0x1000 [ 286.538529][ T29] ? up_write+0x510/0x510 [ 286.542892][ T29] ? lock_sync+0x190/0x190 [ 286.547767][ T29] ? preempt_count_sub+0x160/0x160 [ 286.553153][ T29] ? ptrace_notify+0xf4/0x130 [ 286.558157][ T29] blkdev_fallocate+0x1e9/0x450 [ 286.563298][ T29] ? file_to_blk_mode+0x1a0/0x1a0 [ 286.568451][ T29] vfs_fallocate+0x46c/0xe50 [ 286.573060][ T29] __x64_sys_fallocate+0xd5/0x140 [ 286.578408][ T29] do_syscall_64+0x40/0x110 [ 286.583190][ T29] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 286.589398][ T29] RIP: 0033:0x7fbef7421b29 [ 286.594081][ T29] RSP: 002b:00007ffc57b0f778 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 286.602787][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbef7421b29 [ 286.611025][ T29] RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 [ 286.619363][ T29] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 286.627376][ T29] R10: 7fffffffffffffff R11: 0000000000000246 R12: 000000000000dea8 [ 286.635619][ T29] R13: 00007ffc57b0f78c R14: 00007ffc57b0f7a0 R15: 00007ffc57b0f790 [ 286.643662][ T29] [ 286.646714][ T29] [ 286.646714][ T29] Showing all locks held in the system: [ 286.654809][ T29] 1 lock held by khungtaskd/29: [ 286.659978][ T29] #0: ffffffff8cfab760 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 [ 286.670404][ T29] 5 locks held by kworker/u4:2/42: [ 286.675569][ T29] 2 locks held by klogd/4509: [ 286.680566][ T29] 2 locks held by getty/4837: [ 286.685522][ T29] #0: ffff88802aaaa0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 [ 286.695647][ T29] #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc6/0x1490 [ 286.706164][ T29] 1 lock held by syz-executor277/5078: [ 286.711708][ T29] 1 lock held by syz-executor277/5080: [ 286.717165][ T29] #0: ffff88801b6bb740 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 286.728107][ T29] 1 lock held by syz-executor277/5081: [ 286.733568][ T29] #0: ffff88801b6bb740 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 286.744574][ T29] 1 lock held by syz-executor277/5098: [ 286.750476][ T29] #0: ffff88801b6bb740 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 286.761532][ T29] 1 lock held by syz-executor277/5099: [ 286.767350][ T29] #0: ffff88801b6bb740 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 286.778418][ T29] 1 lock held by syz-executor277/5106: [ 286.784232][ T29] #0: ffff88801b6bb740 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 286.795510][ T29] [ 286.798303][ T29] ============================================= [ 286.798303][ T29] [ 286.806750][ T29] NMI backtrace for cpu 1 [ 286.811112][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller-00177-g52b1853b080a #0 [ 286.820923][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 286.830990][ T29] Call Trace: [ 286.834291][ T29] [ 286.837220][ T29] dump_stack_lvl+0xd9/0x1b0 [ 286.841828][ T29] nmi_cpu_backtrace+0x277/0x390 [ 286.846770][ T29] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 286.851982][ T29] nmi_trigger_cpumask_backtrace+0x299/0x300 [ 286.857971][ T29] watchdog+0xf87/0x1210 [ 286.862229][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 286.868220][ T29] ? lockdep_hardirqs_on+0x7d/0x110 [ 286.873431][ T29] ? __kthread_parkme+0x14b/0x220 [ 286.878462][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 286.884457][ T29] kthread+0x2c6/0x3a0 [ 286.888533][ T29] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.893727][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 286.899361][ T29] ret_from_fork+0x45/0x80 [ 286.903784][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 286.909432][ T29] ret_from_fork_asm+0x11/0x20 [ 286.914217][ T29] [ 286.917365][ T29] Sending NMI from CPU 1 to CPUs 0: [ 286.922604][ C0] NMI backtrace for cpu 0 [ 286.922614][ C0] CPU: 0 PID: 4509 Comm: klogd Not tainted 6.7.0-rc8-syzkaller-00177-g52b1853b080a #0 [ 286.922627][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 286.922634][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 [ 286.922656][ C0] Code: 46 82 da 02 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1e fa 65 48 8b 14 25 c0 bc 03 00 65 8b 05 24 4a 7c 7e a9 00 [ 286.922667][ C0] RSP: 0018:ffffc9000314f318 EFLAGS: 00000206 [ 286.922678][ C0] RAX: 0000000000000000 RBX: ffffc9000314f3e8 RCX: ffffffff8139f466 [ 286.922685][ C0] RDX: ffff88805cb49dc0 RSI: ffffffff8139f470 RDI: 0000000000000005 [ 286.922692][ C0] RBP: ffffc9000314fa00 R08: 0000000000000005 R09: 0000000000000000 [ 286.922698][ C0] R10: 0000000000000001 R11: 0000000000000001 R12: ffffc9000314f3f0 [ 286.922705][ C0] R13: ffffc9000314f3f8 R14: ffffc90003148000 R15: 0000000000000001 [ 286.922716][ C0] FS: 00007f7c76f75380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 286.922728][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.922736][ C0] CR2: 00007f66104bb580 CR3: 0000000027d94000 CR4: 0000000000350ef0 [ 286.922742][ C0] Call Trace: [ 286.922747][ C0] [ 286.922751][ C0] ? show_regs+0x8f/0xa0 [ 286.922765][ C0] ? nmi_cpu_backtrace+0x1d4/0x390 [ 286.922782][ C0] ? nmi_cpu_backtrace_handler+0xc/0x10 [ 286.922798][ C0] ? nmi_handle+0x1a6/0x570 [ 286.922811][ C0] ? x86_pmu_event_mapped+0x1c0/0x1c0 [ 286.922829][ C0] ? kcov_close+0x20/0x20 [ 286.922842][ C0] ? default_do_nmi+0x6a/0x160 [ 286.922859][ C0] ? exc_nmi+0x186/0x200 [ 286.922874][ C0] ? end_repeat_nmi+0xf/0x2a [ 286.922888][ C0] ? stack_access_ok+0x96/0x270 [ 286.922906][ C0] ? stack_access_ok+0xa0/0x270 [ 286.922915][ C0] ? kcov_close+0x20/0x20 [ 286.922928][ C0] ? kcov_close+0x20/0x20 [ 286.922940][ C0] ? kcov_close+0x20/0x20 [ 286.922952][ C0] [ 286.922955][ C0] [ 286.922958][ C0] stack_access_ok+0x1c5/0x270 [ 286.922969][ C0] unwind_next_frame+0x1a98/0x2390 [ 286.922980][ C0] ? alloc_skb_with_frags+0xe4/0x710 [ 286.922993][ C0] ? write_profile+0x450/0x450 [ 286.923005][ C0] arch_stack_walk+0xfa/0x170 [ 286.923018][ C0] ? sock_alloc_send_pskb+0x7e4/0x970 [ 286.923032][ C0] stack_trace_save+0x96/0xd0 [ 286.923043][ C0] ? filter_irq_stacks+0x90/0x90 [ 286.923056][ C0] save_stack+0x160/0x1f0 [ 286.923069][ C0] ? register_early_stack+0xd0/0xd0 [ 286.923081][ C0] ? lock_sync+0x190/0x190 [ 286.923097][ C0] ? free_unref_page_prepare+0x4fa/0xaa0 [ 286.923112][ C0] ? free_unref_page+0x33/0x3b0 [ 286.923126][ C0] ? __unfreeze_partials+0x226/0x240 [ 286.923140][ C0] ? qlist_free_all+0x6a/0x170 [ 286.923151][ C0] ? kasan_quarantine_reduce+0x18e/0x1d0 [ 286.923162][ C0] ? __kasan_slab_alloc+0x65/0x90 [ 286.923176][ C0] ? kmem_cache_alloc_node+0x180/0x330 [ 286.923190][ C0] ? __alloc_skb+0x287/0x330 [ 286.923203][ C0] ? alloc_skb_with_frags+0xe4/0x710 [ 286.923216][ C0] __reset_page_owner+0x5a/0x190 [ 286.923230][ C0] free_unref_page_prepare+0x4fa/0xaa0 [ 286.923247][ C0] free_unref_page+0x33/0x3b0 [ 286.923263][ C0] __unfreeze_partials+0x226/0x240 [ 286.923277][ C0] ? reacquire_held_locks+0x4c0/0x4c0 [ 286.923297][ C0] qlist_free_all+0x6a/0x170 [ 286.923309][ C0] kasan_quarantine_reduce+0x18e/0x1d0 [ 286.923322][ C0] __kasan_slab_alloc+0x65/0x90 [ 286.923337][ C0] kmem_cache_alloc_node+0x180/0x330 [ 286.923353][ C0] __alloc_skb+0x287/0x330 [ 286.923368][ C0] ? __napi_build_skb+0x50/0x50 [ 286.923382][ C0] ? __lock_acquire+0x14f0/0x3b20 [ 286.923401][ C0] alloc_skb_with_frags+0xe4/0x710 [ 286.923413][ C0] sock_alloc_send_pskb+0x7e4/0x970 [ 286.923426][ C0] ? lock_acquire+0x1ae/0x520 [ 286.923443][ C0] ? sock_wmalloc+0x120/0x120 [ 286.923454][ C0] ? reacquire_held_locks+0x4c0/0x4c0 [ 286.923470][ C0] ? do_raw_spin_lock+0x12e/0x2b0 [ 286.923480][ C0] ? spin_bug+0x1d0/0x1d0 [ 286.923492][ C0] unix_dgram_sendmsg+0x464/0x1ca0 [ 286.923507][ C0] ? aa_sk_perm+0x2f8/0xb40 [ 286.923520][ C0] ? unix_stream_recvmsg+0x1b0/0x1b0 [ 286.923531][ C0] ? aa_af_perm+0x250/0x250 [ 286.923544][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 286.923558][ C0] ? unix_stream_recvmsg+0x1b0/0x1b0 [ 286.923570][ C0] __sock_sendmsg+0xd5/0x180 [ 286.923585][ C0] __sys_sendto+0x255/0x340 [ 286.923601][ C0] ? __ia32_sys_getpeername+0xb0/0xb0 [ 286.923622][ C0] ? do_syslog+0x13d/0x580 [ 286.923635][ C0] ? folio_memcg_unlock+0x240/0x240 [ 286.923647][ C0] __x64_sys_sendto+0xe0/0x1b0 [ 286.923662][ C0] ? syscall_enter_from_user_mode+0x7f/0x120 [ 286.923674][ C0] do_syscall_64+0x40/0x110 [ 286.923688][ C0] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 286.923701][ C0] RIP: 0033:0x7f7c770d79b5 [ 286.923709][ C0] Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83 [ 286.923719][ C0] RSP: 002b:00007ffd97eb94f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 286.923729][ C0] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f7c770d79b5 [ 286.923736][ C0] RDX: 0000000000000032 RSI: 0000563487e3b6b0 RDI: 0000000000000003 [ 286.923743][ C0] RBP: 0000563487e37910 R08: 0000000000000000 R09: 0000000000000000 [ 286.923749][ C0] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013 [ 286.923755][ C0] R13: 00007f7c77265212 R14: 00007ffd97eb95f8 R15: 0000000000000000 [ 286.923766][ C0] [ 286.923770][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.166 msecs [ 286.924600][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 287.479930][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller-00177-g52b1853b080a #0 [ 287.489724][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 287.499773][ T29] Call Trace: [ 287.503048][ T29] [ 287.505970][ T29] dump_stack_lvl+0xd9/0x1b0 [ 287.510563][ T29] panic+0x6dc/0x790 [ 287.514456][ T29] ? panic_smp_self_stop+0xa0/0xa0 [ 287.519558][ T29] ? kmsg_dump_get_line+0x350/0x350 [ 287.524756][ T29] ? __irq_work_queue_local+0x132/0x400 [ 287.530293][ T29] ? irq_work_queue+0x2a/0x70 [ 287.534957][ T29] ? watchdog+0xd3e/0x1210 [ 287.539365][ T29] ? watchdog+0xd31/0x1210 [ 287.543775][ T29] watchdog+0xd4f/0x1210 [ 287.548016][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 287.553985][ T29] ? lockdep_hardirqs_on+0x7d/0x110 [ 287.559174][ T29] ? __kthread_parkme+0x14b/0x220 [ 287.564191][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 287.570162][ T29] kthread+0x2c6/0x3a0 [ 287.574222][ T29] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.579418][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 287.585043][ T29] ret_from_fork+0x45/0x80 [ 287.589457][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 287.595082][ T29] ret_from_fork_asm+0x11/0x20 [ 287.599849][ T29] [ 287.603116][ T29] Kernel Offset: disabled [ 287.607423][ T29] Rebooting in 86400 seconds..