./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3626063623 <...> Warning: Permanently added '10.128.0.170' (ED25519) to the list of known hosts. execve("./syz-executor3626063623", ["./syz-executor3626063623"], 0x7ffc44442220 /* 10 vars */) = 0 brk(NULL) = 0x555559ba3000 brk(0x555559ba3d00) = 0x555559ba3d00 arch_prctl(ARCH_SET_FS, 0x555559ba3380) = 0 set_tid_address(0x555559ba3650) = 5232 set_robust_list(0x555559ba3660, 24) = 0 rseq(0x555559ba3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3626063623", 4096) = 28 getrandom("\xfa\x70\x29\x3e\xab\xb3\x69\x7e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555559ba3d00 brk(0x555559bc4d00) = 0x555559bc4d00 brk(0x555559bc5000) = 0x555559bc5000 mprotect(0x7f23732c7000, 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 5233 attached , child_tidptr=0x555559ba3650) = 5233 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] set_robust_list(0x555559ba3660, 24) = 0 ./strace-static-x86_64: Process 5234 attached [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] <... clone resumed>, child_tidptr=0x555559ba3650) = 5234 [pid 5234] set_robust_list(0x555559ba3660, 24 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5234] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5235 attached [pid 5234] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5235] set_robust_list(0x555559ba3660, 24./strace-static-x86_64: Process 5237 attached ./strace-static-x86_64: Process 5236 attached [pid 5233] <... clone resumed>, child_tidptr=0x555559ba3650) = 5235 [pid 5237] set_robust_list(0x555559ba3660, 24 [pid 5235] <... set_robust_list resumed>) = 0 [pid 5234] <... clone resumed>, child_tidptr=0x555559ba3650) = 5237 [pid 5232] <... clone resumed>, child_tidptr=0x555559ba3650) = 5236 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5236] set_robust_list(0x555559ba3660, 24 [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] <... set_robust_list resumed>) = 0 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5235] <... prctl resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5238 attached [pid 5237] <... prctl resumed>) = 0 [pid 5235] setpgid(0, 0 [pid 5232] <... clone resumed>, child_tidptr=0x555559ba3650) = 5238 ./strace-static-x86_64: Process 5239 attached [pid 5238] set_robust_list(0x555559ba3660, 24 [pid 5237] setpgid(0, 0 [pid 5235] <... setpgid resumed>) = 0 [pid 5238] <... set_robust_list resumed>) = 0 [pid 5237] <... setpgid resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555559ba3650) = 5239 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5239] set_robust_list(0x555559ba3660, 24 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5240 attached ./strace-static-x86_64: Process 5241 attached [pid 5239] <... set_robust_list resumed>) = 0 [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] <... clone resumed>, child_tidptr=0x555559ba3650) = 5240 [pid 5240] set_robust_list(0x555559ba3660, 24 [pid 5241] set_robust_list(0x555559ba3660, 24 [pid 5237] <... openat resumed>) = 3 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] <... set_robust_list resumed>) = 0 [pid 5241] <... set_robust_list resumed>) = 0 [pid 5239] <... prctl resumed>) = 0 [pid 5235] <... openat resumed>) = 3 [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3 [pid 5235] write(3, "1000", 4 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5239] setpgid(0, 0 [pid 5238] <... clone resumed>, child_tidptr=0x555559ba3650) = 5241 executing program [pid 5237] <... close resumed>) = 0 [pid 5235] <... write resumed>) = 4 [pid 5237] write(1, "executing program\n", 18 [pid 5235] close(3 [pid 5237] <... write resumed>) = 18 [pid 5235] <... close resumed>) = 0 [pid 5237] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_TRUNC|O_APPEND|O_NONBLOCK|__O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC executing program [pid 5235] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 5242 attached [pid 5241] <... prctl resumed>) = 0 [pid 5239] <... setpgid resumed>) = 0 [pid 5237] <... openat resumed>) = 3 [pid 5240] <... clone resumed>, child_tidptr=0x555559ba3650) = 5242 [pid 5242] set_robust_list(0x555559ba3660, 24 [pid 5241] setpgid(0, 0 [pid 5235] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_TRUNC|O_APPEND|O_NONBLOCK|__O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC [pid 5242] <... set_robust_list resumed>) = 0 [pid 5241] <... setpgid resumed>) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] dup(3 [pid 5235] <... openat resumed>) = 3 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] <... openat resumed>) = 3 [pid 5237] <... dup resumed>) = 4 [pid 5235] dup(3 [pid 5242] <... prctl resumed>) = 0 [pid 5241] <... openat resumed>) = 3 [pid 5237] fallocate(4, FALLOC_FL_ZERO_RANGE, 0, 137438954496 [pid 5239] write(3, "1000", 4 [pid 5235] <... dup resumed>) = 4 [pid 5242] setpgid(0, 0 [pid 5239] <... write resumed>) = 4 [pid 5242] <... setpgid resumed>) = 0 [pid 5239] close(3 [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] write(3, "1000", 4 [pid 5239] <... close resumed>) = 0 [pid 5235] fallocate(4, FALLOC_FL_ZERO_RANGE, 0, 137438954496executing program [pid 5241] <... write resumed>) = 4 [pid 5239] write(1, "executing program\n", 18 [pid 5242] <... openat resumed>) = 3 [pid 5239] <... write resumed>) = 18 [pid 5242] write(3, "1000", 4 [pid 5241] close(3 [pid 5239] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_TRUNC|O_APPEND|O_NONBLOCK|__O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC [pid 5241] <... close resumed>) = 0 [pid 5239] <... openat resumed>) = 3 [pid 5242] <... write resumed>) = 4 [pid 5242] close(3executing program [pid 5241] write(1, "executing program\n", 18 [pid 5239] dup(3 [pid 5242] <... close resumed>) = 0 [pid 5241] <... write resumed>) = 18 [pid 5239] <... dup resumed>) = 4 executing program [pid 5242] write(1, "executing program\n", 18 [pid 5241] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_TRUNC|O_APPEND|O_NONBLOCK|__O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC [pid 5239] fallocate(4, FALLOC_FL_ZERO_RANGE, 0, 137438954496 [pid 5242] <... write resumed>) = 18 [pid 5242] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_TRUNC|O_APPEND|O_NONBLOCK|__O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC [pid 5241] <... openat resumed>) = 3 [pid 5241] dup(3 [pid 5242] <... openat resumed>) = 3 [pid 5241] <... dup resumed>) = 4 [pid 5241] fallocate(4, FALLOC_FL_ZERO_RANGE, 0, 137438954496 [pid 5242] dup(3) = 4 [pid 5242] fallocate(4, FALLOC_FL_ZERO_RANGE, 0, 137438954496 [pid 5233] kill(-5235, SIGKILL) = 0 [pid 5233] kill(5235, SIGKILL) = 0 [pid 5234] kill(-5237, SIGKILL) = 0 [pid 5234] kill(5237, SIGKILL) = 0 [pid 5236] kill(-5239, SIGKILL) = 0 [pid 5238] kill(-5241, SIGKILL [pid 5236] kill(5239, SIGKILL [pid 5238] <... kill resumed>) = 0 [pid 5236] <... kill resumed>) = 0 [pid 5238] kill(5241, SIGKILL) = 0 [pid 5240] kill(-5242, SIGKILL) = 0 [pid 5240] kill(5242, SIGKILL) = 0 [pid 5238] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5234] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5236] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5240] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5238] <... openat resumed>) = 3 [pid 5233] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5240] <... openat resumed>) = 3 [pid 5238] newfstatat(3, "", [pid 5240] newfstatat(3, "", [pid 5234] <... openat resumed>) = 3 [pid 5236] <... openat resumed>) = 3 [pid 5236] newfstatat(3, "", [pid 5234] newfstatat(3, "", [pid 5238] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5238] getdents64(3, [pid 5233] <... openat resumed>) = 3 [pid 5238] <... getdents64 resumed>0x555559ba46f0 /* 2 entries */, 32768) = 48 [pid 5234] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5233] newfstatat(3, "", [pid 5238] getdents64(3, [pid 5236] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5233] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5238] <... getdents64 resumed>0x555559ba46f0 /* 0 entries */, 32768) = 0 [pid 5234] getdents64(3, [pid 5240] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5238] close(3 [pid 5234] <... getdents64 resumed>0x555559ba46f0 /* 2 entries */, 32768) = 48 [pid 5233] getdents64(3, [pid 5238] <... close resumed>) = 0 [pid 5236] getdents64(3, [pid 5234] getdents64(3, [pid 5233] <... getdents64 resumed>0x555559ba46f0 /* 2 entries */, 32768) = 48 [pid 5240] getdents64(3, [pid 5236] <... getdents64 resumed>0x555559ba46f0 /* 2 entries */, 32768) = 48 [pid 5234] <... getdents64 resumed>0x555559ba46f0 /* 0 entries */, 32768) = 0 [pid 5233] getdents64(3, [pid 5240] <... getdents64 resumed>0x555559ba46f0 /* 2 entries */, 32768) = 48 [pid 5236] getdents64(3, [pid 5234] close(3 [pid 5233] <... getdents64 resumed>0x555559ba46f0 /* 0 entries */, 32768) = 0 [pid 5234] <... close resumed>) = 0 [pid 5233] close(3 [pid 5240] getdents64(3, [pid 5236] <... getdents64 resumed>0x555559ba46f0 /* 0 entries */, 32768) = 0 [pid 5240] <... getdents64 resumed>0x555559ba46f0 /* 0 entries */, 32768) = 0 [pid 5233] <... close resumed>) = 0 [pid 5240] close(3 [pid 5236] close(3 [pid 5240] <... close resumed>) = 0 [pid 5236] <... close resumed>) = 0 [pid 5237] <... fallocate resumed>) = ? [pid 5237] +++ killed by SIGKILL +++ [pid 5234] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5237, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=2722 /* 27.22 s */} --- [pid 5234] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5243 attached , child_tidptr=0x555559ba3650) = 5243 [pid 5243] set_robust_list(0x555559ba3660, 24) = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5243] setpgid(0, 0) = 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5243] write(3, "1000", 4) = 4 [pid 5243] close(3) = 0 [pid 5243] write(1, "executing program\n", 18) = 18 [pid 5243] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_TRUNC|O_APPEND|O_NONBLOCK|__O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC) = 3 [pid 5243] dup(3) = 4 [pid 5243] fallocate(4, FALLOC_FL_ZERO_RANGE, 0, 137438954496 [pid 5234] kill(-5243, SIGKILL) = 0 [pid 5234] kill(5243, SIGKILL) = 0 [pid 5234] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5234] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5234] getdents64(3, 0x555559ba46f0 /* 2 entries */, 32768) = 48 [pid 5234] getdents64(3, 0x555559ba46f0 /* 0 entries */, 32768) = 0 [pid 5234] close(3) = 0 [pid 5235] <... fallocate resumed>) = ? [pid 5235] +++ killed by SIGKILL +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5235, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=2656 /* 26.56 s */} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5250 attached , child_tidptr=0x555559ba3650) = 5250 [pid 5250] set_robust_list(0x555559ba3660, 24) = 0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5250] setpgid(0, 0) = 0 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5250] write(3, "1000", 4) = 4 [pid 5250] close(3executing program ) = 0 [pid 5250] write(1, "executing program\n", 18) = 18 [pid 5250] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_TRUNC|O_APPEND|O_NONBLOCK|__O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC) = 3 [pid 5250] dup(3) = 4 [pid 5250] fallocate(4, FALLOC_FL_ZERO_RANGE, 0, 137438954496 [pid 5233] kill(-5250, SIGKILL) = 0 [pid 5233] kill(5250, SIGKILL) = 0 [pid 5233] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5233] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5233] getdents64(3, 0x555559ba46f0 /* 2 entries */, 32768) = 48 [pid 5233] getdents64(3, 0x555559ba46f0 /* 0 entries */, 32768) = 0 [pid 5233] close(3) = 0 [pid 5239] <... fallocate resumed>) = ? [pid 5239] +++ killed by SIGKILL +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5239, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=2704 /* 27.04 s */} --- [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5251 attached , child_tidptr=0x555559ba3650) = 5251 [pid 5251] set_robust_list(0x555559ba3660, 24) = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5251] setpgid(0, 0) = 0 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5251] write(3, "1000", 4) = 4 executing program [pid 5251] close(3) = 0 [pid 5251] write(1, "executing program\n", 18) = 18 [pid 5251] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_TRUNC|O_APPEND|O_NONBLOCK|__O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC) = 3 [pid 5251] dup(3) = 4 [pid 5251] fallocate(4, FALLOC_FL_ZERO_RANGE, 0, 137438954496 [pid 5236] kill(-5251, SIGKILL) = 0 [pid 5236] kill(5251, SIGKILL) = 0 [pid 5236] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5236] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5236] getdents64(3, 0x555559ba46f0 /* 2 entries */, 32768) = 48 [pid 5236] getdents64(3, 0x555559ba46f0 /* 0 entries */, 32768) = 0 [pid 5236] close(3) = 0 [ 286.575984][ T30] INFO: task syz-executor362:5242 blocked for more than 143 seconds. [ 286.588919][ T30] Not tainted 6.11.0-syzkaller-11728-gad46e8f95e93 #0 [ 286.597053][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.622135][ T30] task:syz-executor362 state:D stack:26592 pid:5242 tgid:5242 ppid:5240 flags:0x00004006 [ 286.651547][ T30] Call Trace: [ 286.655789][ T30] [ 286.658746][ T30] __schedule+0x1843/0x4ae0 [ 286.675270][ T30] ? __pfx___schedule+0x10/0x10 [ 286.680163][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.702132][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.708736][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 286.715898][ T30] ? _raw_spin_lock_irq+0xdf/0x120 [ 286.721693][ T30] ? schedule+0x90/0x320 [ 286.726555][ T30] schedule+0x14b/0x320 [ 286.730735][ T30] schedule_preempt_disabled+0x13/0x30 [ 286.736925][ T30] rwsem_down_write_slowpath+0xeee/0x13b0 [ 286.743338][ T30] ? rwsem_down_write_slowpath+0xa09/0x13b0 [ 286.761636][ T30] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 286.767837][ T30] ? __pfx_lock_acquire+0x10/0x10 [ 286.772939][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.778950][ T30] down_write+0x1d7/0x220 [ 286.783362][ T30] ? __pfx_down_write+0x10/0x10 [ 286.788290][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.793590][ T30] blkdev_fallocate+0x20e/0x490 [ 286.809134][ T30] vfs_fallocate+0x569/0x6e0 [ 286.814492][ T30] __x64_sys_fallocate+0xbd/0x110 [ 286.819551][ T30] do_syscall_64+0xf3/0x230 [ 286.824108][ T30] ? clear_bhb_loop+0x35/0x90 [ 286.832422][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.839277][ T30] RIP: 0033:0x7f2373254b29 [ 286.853320][ T30] RSP: 002b:00007ffc72ed2f58 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 286.861990][ T30] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2373254b29 [ 286.872366][ T30] RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000004 [ 286.880460][ T30] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 286.888515][ T30] R10: 0000002000000400 R11: 0000000000000246 R12: 0000000000000001 [ 286.905690][ T30] R13: 00007ffc72ed3178 R14: 00007ffc72ed2f80 R15: 00007ffc72ed2f70 [ 286.914294][ T30] [ 286.917359][ T30] [ 286.917359][ T30] Showing all locks held in the system: [ 286.930926][ T30] 1 lock held by khungtaskd/30: [ 286.956805][ T30] #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 287.027787][ T30] 3 locks held by kworker/0:1H/58: [ 287.033020][ T30] 6 locks held by kworker/u8:7/3020: [ 287.038312][ T30] 1 lock held by klogd/4660: [ 287.042948][ T30] 2 locks held by getty/4979: [ 287.047633][ T30] #0: ffff88802e7240a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.100029][ T30] #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 [ 287.114698][ T30] 2 locks held by syz-executor362/5241: [ 287.120277][ T30] 1 lock held by syz-executor362/5242: [ 287.125962][ T30] #0: ffff888023514e40 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x20e/0x490 [ 287.137597][ T30] 1 lock held by syz-executor362/5243: [ 287.145235][ T30] #0: ffff888023514e40 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x20e/0x490 [ 287.167725][ T30] 1 lock held by syz-executor362/5250: [ 287.173264][ T30] #0: ffff888023514e40 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x20e/0x490 [ 287.186625][ T30] 1 lock held by syz-executor362/5251: [ 287.194047][ T30] #0: ffff888023514e40 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x20e/0x490 [ 287.205804][ T30] [ 287.208140][ T30] ============================================= [ 287.208140][ T30] [ 287.221899][ T30] NMI backtrace for cpu 0 [ 287.226259][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-11728-gad46e8f95e93 #0 [ 287.236421][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.246481][ T30] Call Trace: [ 287.249768][ T30] [ 287.252710][ T30] dump_stack_lvl+0x241/0x360 [ 287.257405][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.262616][ T30] ? __pfx__printk+0x10/0x10 [ 287.267264][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.272214][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.277667][ T30] ? _printk+0xd5/0x120 [ 287.281819][ T30] ? __pfx__printk+0x10/0x10 [ 287.286403][ T30] ? __wake_up_klogd+0xcc/0x110 [ 287.291248][ T30] ? __pfx__printk+0x10/0x10 [ 287.295836][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 287.300856][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.306834][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.312811][ T30] watchdog+0xff4/0x1040 [ 287.317051][ T30] ? watchdog+0x1ea/0x1040 [ 287.321467][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.326160][ T30] kthread+0x2f0/0x390 [ 287.330226][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.334901][ T30] ? __pfx_kthread+0x10/0x10 [ 287.339483][ T30] ret_from_fork+0x4b/0x80 [ 287.343896][ T30] ? __pfx_kthread+0x10/0x10 [ 287.348479][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.353246][ T30] [ 287.356588][ T30] Sending NMI from CPU 0 to CPUs 1: [ 287.362036][ C1] NMI backtrace for cpu 1 [ 287.362048][ C1] CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.11.0-syzkaller-11728-gad46e8f95e93 #0 [ 287.362066][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.362076][ C1] RIP: 0010:debug_check_no_obj_freed+0x2cc/0x580 [ 287.362101][ C1] Code: 00 00 49 89 c4 49 89 c5 49 c1 ed 03 48 b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 74 08 4c 89 e7 e8 88 ab 41 fd 49 8b 04 24 <48> 89 44 24 38 49 8d 5c 24 18 48 89 d8 48 c1 e8 03 48 b9 00 00 00 [ 287.362119][ C1] RSP: 0018:ffffc900001e7860 EFLAGS: 00000046 [ 287.362133][ C1] RAX: ffff888068ab47a8 RBX: ffff888032108360 RCX: dffffc0000000000 [ 287.362145][ C1] RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc900001e7740 [ 287.362156][ C1] RBP: ffffc900001e79b8 R08: 0000000000000003 R09: fffff5200003cee8 [ 287.362167][ C1] R10: dffffc0000000000 R11: fffff5200003cee8 R12: ffff888068ab4770 [ 287.362178][ C1] R13: 1ffff1100d1568ee R14: ffffea0001a2b890 R15: 0000000000000004 [ 287.362189][ C1] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 287.362202][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.362212][ C1] CR2: 0000557e98847e78 CR3: 0000000030d10000 CR4: 00000000003506f0 [ 287.362225][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.362234][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.362244][ C1] Call Trace: [ 287.362249][ C1] [ 287.362255][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.362272][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 287.362294][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.362309][ C1] ? nmi_handle+0x2a/0x5a0 [ 287.362330][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.362347][ C1] ? nmi_handle+0x14f/0x5a0 [ 287.362361][ C1] ? nmi_handle+0x2a/0x5a0 [ 287.362375][ C1] ? debug_check_no_obj_freed+0x2cc/0x580 [ 287.362393][ C1] ? default_do_nmi+0x63/0x160 [ 287.362410][ C1] ? exc_nmi+0x123/0x1f0 [ 287.362426][ C1] ? end_repeat_nmi+0xf/0x53 [ 287.362449][ C1] ? debug_check_no_obj_freed+0x2cc/0x580 [ 287.362468][ C1] ? debug_check_no_obj_freed+0x2cc/0x580 [ 287.362488][ C1] ? debug_check_no_obj_freed+0x2cc/0x580 [ 287.362507][ C1] [ 287.362512][ C1] [ 287.362523][ C1] ? __pfx_debug_check_no_obj_freed+0x10/0x10 [ 287.362543][ C1] ? page_ext_get+0x20/0x2a0 [ 287.362562][ C1] ? page_ext_get+0x1d6/0x2a0 [ 287.362583][ C1] free_unref_page+0x417/0xf00 [ 287.362601][ C1] ? rcu_core+0xa37/0x17a0 [ 287.362620][ C1] ? __pfx_rcu_free_slab+0x10/0x10 [ 287.362636][ C1] rcu_core+0xaaa/0x17a0 [ 287.362656][ C1] ? __pfx_rcu_core+0x10/0x10 [ 287.362671][ C1] ? kvm_sched_clock_read+0x11/0x20 [ 287.362689][ C1] ? sched_clock+0x4a/0x70 [ 287.362706][ C1] ? sched_clock_cpu+0x76/0x490 [ 287.362724][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.362744][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.362767][ C1] handle_softirqs+0x2c5/0x980 [ 287.362787][ C1] ? run_ksoftirqd+0xca/0x130 [ 287.362807][ C1] ? __pfx_handle_softirqs+0x10/0x10 [ 287.362823][ C1] ? preempt_schedule+0xe1/0xf0 [ 287.362845][ C1] run_ksoftirqd+0xca/0x130 [ 287.362863][ C1] ? __pfx_run_ksoftirqd+0x10/0x10 [ 287.362882][ C1] ? __pfx_ksoftirqd_should_run+0x10/0x10 [ 287.362900][ C1] ? smpboot_thread_fn+0x2d3/0xa30 [ 287.362918][ C1] ? smpboot_thread_fn+0x4fb/0xa30 [ 287.362934][ C1] ? smpboot_thread_fn+0x656/0xa30 [ 287.362952][ C1] ? __pfx_run_ksoftirqd+0x10/0x10 [ 287.362969][ C1] smpboot_thread_fn+0x544/0xa30 [ 287.362986][ C1] ? smpboot_thread_fn+0x4e/0xa30 [ 287.363006][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 287.363024][ C1] kthread+0x2f0/0x390 [ 287.363037][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 287.363054][ C1] ? __pfx_kthread+0x10/0x10 [ 287.363067][ C1] ret_from_fork+0x4b/0x80 [ 287.363084][ C1] ? __pfx_kthread+0x10/0x10 [ 287.363097][ C1] ret_from_fork_asm+0x1a/0x30 [ 287.363121][ C1] [ 287.363128][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.092 msecs [ 287.386102][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 287.386117][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-11728-gad46e8f95e93 #0 [ 287.781594][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.791640][ T30] Call Trace: [ 287.794907][ T30] [ 287.797827][ T30] dump_stack_lvl+0x241/0x360 [ 287.802501][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.807688][ T30] ? __pfx__printk+0x10/0x10 [ 287.812269][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.818245][ T30] ? vscnprintf+0x5d/0x90 [ 287.822563][ T30] panic+0x349/0x880 [ 287.826452][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.832593][ T30] ? __pfx_panic+0x10/0x10 [ 287.836996][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 287.842359][ T30] ? __irq_work_queue_local+0x137/0x410 [ 287.847893][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 287.853252][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.859394][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 287.865534][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 287.871677][ T30] watchdog+0x1033/0x1040 [ 287.875997][ T30] ? watchdog+0x1ea/0x1040 [ 287.880405][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.885072][ T30] kthread+0x2f0/0x390 [ 287.889129][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.893795][ T30] ? __pfx_kthread+0x10/0x10 [ 287.898371][ T30] ret_from_fork+0x4b/0x80 [ 287.902780][ T30] ? __pfx_kthread+0x10/0x10 [ 287.907356][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.912120][ T30] [ 287.915384][ T30] Kernel Offset: disabled [ 287.919696][ T30] Rebooting in 86400 seconds..