./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor529702041 <...> Warning: Permanently added '10.128.1.132' (ED25519) to the list of known hosts. execve("./syz-executor529702041", ["./syz-executor529702041"], 0x7ffe36f6b640 /* 10 vars */) = 0 brk(NULL) = 0x55558bafc000 brk(0x55558bafcd40) = 0x55558bafcd40 arch_prctl(ARCH_SET_FS, 0x55558bafc3c0) = 0 set_tid_address(0x55558bafc690) = 5846 set_robust_list(0x55558bafc6a0, 24) = 0 rseq(0x55558bafcce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor529702041", 4096) = 27 getrandom("\xcf\x37\xfa\x76\x9b\x3e\xa9\x5e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558bafcd40 brk(0x55558bb1dd40) = 0x55558bb1dd40 brk(0x55558bb1e000) = 0x55558bb1e000 mprotect(0x7f55dfbc9000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5847 attached , child_tidptr=0x55558bafc690) = 5847 [pid 5847] set_robust_list(0x55558bafc6a0, 24) = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] setpgid(0, 0) = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1000", 4) = 4 [pid 5847] close(3) = 0 executing program [pid 5847] write(1, "executing program\n", 18) = 18 [pid 5847] futex(0x7f55dfbcf60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5847] rt_sigaction(SIGRT_1, {sa_handler=0x7f55dfb69470, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f55dfb5ab20}, NULL, 8) = 0 [pid 5847] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f55dfad8000 [pid 5847] mprotect(0x7f55dfad9000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f55dfaf8990, parent_tid=0x7f55dfaf8990, exit_signal=0, stack=0x7f55dfad8000, stack_size=0x20300, tls=0x7f55dfaf86c0}./strace-static-x86_64: Process 5849 attached => {parent_tid=[5849]}, 88) = 5849 [pid 5849] rseq(0x7f55dfaf8fe0, 0x20, 0, 0x53053053 [pid 5847] rt_sigprocmask(SIG_SETMASK, [], [pid 5849] <... rseq resumed>) = 0 [pid 5847] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5849] set_robust_list(0x7f55dfaf89a0, 24 [pid 5847] futex(0x7f55dfbcf608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5849] rt_sigprocmask(SIG_SETMASK, [], [pid 5847] futex(0x7f55dfbcf60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5849] memfd_create("syzkaller", 0) = 3 [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f55d7600000 [pid 5849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 20699119) = 20699119 [pid 5849] munmap(0x7f55d7600000, 138412032) = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5849] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5849] close(3) = 0 [pid 5849] close(4) = 0 [pid 5849] mkdir("./file0", 0777) = 0 [ 166.083846][ T5849] loop0: detected capacity change from 0 to 40427 [ 166.120201][ T5849] F2FS-fs (loop0): build fault injection attr: rate: 690, type: 0x3fffff [ 166.131248][ T5849] F2FS-fs (loop0): invalid crc value [pid 5849] mount("/dev/loop0", "./file0", "f2fs", MS_NOEXEC, "fault_injection=00000000000000001262,extent_cache,alloc_mode=default,active_logs=6,active_logs=6,nod"...) = 0 [pid 5849] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5849] chdir("./file0") = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 166.184803][ T5849] F2FS-fs (loop0): Start checkpoint disabled! [ 166.195578][ T5849] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [pid 5849] futex(0x7f55dfbcf60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5849] futex(0x7f55dfbcf608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] <... futex resumed>) = 0 [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] futex(0x7f55dfbcf608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] openat(AT_FDCWD, "./file0", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_CLOEXEC|FASYNC, 000 [pid 5847] <... futex resumed>) = 0 [pid 5847] futex(0x7f55dfbcf60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5849] <... openat resumed>) = 4 [pid 5849] futex(0x7f55dfbcf60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5849] futex(0x7f55dfbcf608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] <... futex resumed>) = 0 [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] futex(0x7f55dfbcf608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] ioctl(4, F2FS_IOC_SET_PIN_FILE [pid 5847] <... futex resumed>) = 0 [pid 5847] futex(0x7f55dfbcf60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5849] <... ioctl resumed>, 0x200000000180) = 0 [pid 5849] futex(0x7f55dfbcf60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5849] futex(0x7f55dfbcf608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] futex(0x7f55dfbcf608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] <... futex resumed>) = 0 [pid 5847] futex(0x7f55dfbcf60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5849] openat(AT_FDCWD, "./file0", O_RDWR|O_CREAT|O_TRUNC|O_NOFOLLOW, 000) = 5 [pid 5849] futex(0x7f55dfbcf60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5847] <... futex resumed>) = 0 [pid 5849] futex(0x7f55dfbcf608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] futex(0x7f55dfbcf608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = 1 [pid 5849] ioctl(5, _IOC(_IOC_WRITE, 0x58, 0x28, 0x30), 0x200000000140 [pid 5847] futex(0x7f55dfbcf60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 166.304532][ T5849] F2FS-fs (loop0): inject inconsistent footer in sanity_check_node_footer of read_inline_xattr+0x15c/0x280 [ 166.316257][ T5849] F2FS-fs (loop0): inconsistent node block, node_type:1, nid:10, node_footer[nid:10,ino:10,ofs:0,cpver:0,blkaddr:0] [pid 5847] futex(0x7f55dfbcf61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f55dfab7000 [pid 5847] mprotect(0x7f55dfab8000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f55dfad7990, parent_tid=0x7f55dfad7990, exit_signal=0, stack=0x7f55dfab7000, stack_size=0x20300, tls=0x7f55dfad76c0}./strace-static-x86_64: Process 5852 attached [pid 5852] rseq(0x7f55dfad7fe0, 0x20, 0, 0x53053053 [pid 5847] <... clone3 resumed> => {parent_tid=[5852]}, 88) = 5852 [pid 5852] <... rseq resumed>) = 0 [pid 5847] rt_sigprocmask(SIG_SETMASK, [], [pid 5852] set_robust_list(0x7f55dfad79a0, 24 [pid 5847] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] futex(0x7f55dfbcf618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... set_robust_list resumed>) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5852] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5847] futex(0x7f55dfbcf61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] ioctl(4, _IOC(_IOC_WRITE, 0x58, 0x28, 0x30), 0x200000000000 [pid 5847] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5847] exit_group(0) = ? [pid 5846] kill(-5847, SIGKILL) = 0 [pid 5846] kill(5847, 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, 0x55558bafd730 /* 2 entries */, 32768) = 48 [pid 5846] getdents64(3, 0x55558bafd730 /* 0 entries */, 32768) = 0 [pid 5846] close(3) = 0 [ 429.804460][ T31] INFO: task syz-executor529:5852 blocked for more than 143 seconds. [ 429.812696][ T31] Not tainted 6.15.0-rc2-syzkaller-00471-g119009db2674 #0 [ 429.822298][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.831279][ T31] task:syz-executor529 state:D stack:27024 pid:5852 tgid:5847 ppid:5846 task_flags:0x400040 flags:0x00004006 [ 429.843538][ T31] Call Trace: [ 429.847159][ T31] [ 429.850134][ T31] __schedule+0x1b33/0x51f0 [ 429.854972][ T31] ? schedule+0x163/0x360 [ 429.859360][ T31] ? __pfx___schedule+0x10/0x10 [ 429.864565][ T31] ? schedule+0x90/0x360 [ 429.868873][ T31] ? schedule+0x90/0x360 [ 429.873160][ T31] schedule+0x163/0x360 [ 429.877692][ T31] schedule_preempt_disabled+0x13/0x30 [ 429.883220][ T31] rwsem_down_write_slowpath+0xedd/0x1420 [ 429.889450][ T31] ? rwsem_down_write_slowpath+0xa17/0x1420 [ 429.895647][ T31] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 429.901849][ T31] ? __lock_acquire+0xad5/0xd80 [ 429.907058][ T31] down_write+0x1da/0x220 [ 429.911432][ T31] ? __pfx_down_write+0x10/0x10 [ 429.916548][ T31] f2fs_fallocate+0x26d/0xa10 [ 429.921271][ T31] ? __pfx_f2fs_fallocate+0x10/0x10 [ 429.927301][ T31] vfs_fallocate+0x627/0x7a0 [ 429.931944][ T31] ? __pfx_vfs_fallocate+0x10/0x10 [ 429.937332][ T31] do_vfs_ioctl+0x2057/0x2750 [ 429.942068][ T31] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 429.947454][ T31] ? kasan_quarantine_put+0xdc/0x230 [ 429.952776][ T31] ? lockdep_hardirqs_on+0x9d/0x150 [ 429.958253][ T31] ? tomoyo_path_number_perm+0x215/0x790 [ 429.963932][ T31] ? tomoyo_path_number_perm+0x684/0x790 [ 429.969883][ T31] ? tomoyo_path_number_perm+0x215/0x790 [ 429.975729][ T31] ? smack_log+0x132/0x630 [ 429.980189][ T31] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 429.986513][ T31] ? __pfx_smack_log+0x10/0x10 [ 429.991310][ T31] ? smk_access+0x4ab/0x4e0 [ 429.996104][ T31] ? smk_tskacc+0x300/0x370 [ 430.000642][ T31] ? smack_file_ioctl+0x2a7/0x3b0 [ 430.006046][ T31] ? __pfx_smack_file_ioctl+0x10/0x10 [ 430.011464][ T31] ? __fget_files+0x2a/0x420 [ 430.016309][ T31] ? __fget_files+0x2a/0x420 [ 430.020953][ T31] __se_sys_ioctl+0x80/0x160 [ 430.025938][ T31] do_syscall_64+0xf3/0x210 [ 430.030479][ T31] ? clear_bhb_loop+0x45/0xa0 [ 430.035912][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.041919][ T31] RIP: 0033:0x7f55dfb43589 [ 430.046697][ T31] RSP: 002b:00007f55dfad7218 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 430.055349][ T31] RAX: ffffffffffffffda RBX: 00007f55dfbcf618 RCX: 00007f55dfb43589 [ 430.063432][ T31] RDX: 0000200000000000 RSI: 0000000040305828 RDI: 0000000000000004 [ 430.071761][ T31] RBP: 00007f55dfbcf610 R08: 00007ffec02c2d87 R09: 0000000000000000 [ 430.080042][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f55dfb9c6f0 [ 430.088372][ T31] R13: 0000200000000140 R14: 0000200000000020 R15: 0000200000000000 [ 430.096583][ T31] [ 430.099673][ T31] [ 430.099673][ T31] Showing all locks held in the system: [ 430.107693][ T31] 1 lock held by khungtaskd/31: [ 430.112563][ T31] #0: ffffffff8ed3df20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x30/0x180 [ 430.122739][ T31] 1 lock held by syslogd/5183: [ 430.127709][ T31] 2 locks held by getty/5583: [ 430.132408][ T31] #0: ffff88814d6370a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.142468][ T31] #1: ffffc900036cb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x5bb/0x1700 [ 430.153326][ T31] 5 locks held by syz-executor529/5849: [ 430.159138][ T31] 2 locks held by syz-executor529/5852: [ 430.164920][ T31] #0: ffff888036082420 (sb_writers#8){.+.+}-{0:0}, at: vfs_fallocate+0x5a1/0x7a0 [ 430.174471][ T31] #1: ffff888079270a38 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: f2fs_fallocate+0x26d/0xa10 [ 430.185355][ T31] [ 430.187700][ T31] ============================================= [ 430.187700][ T31] [ 430.196418][ T31] NMI backtrace for cpu 1 [ 430.196442][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc2-syzkaller-00471-g119009db2674 #0 PREEMPT(full) [ 430.196467][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 430.196479][ T31] Call Trace: [ 430.196487][ T31] [ 430.196495][ T31] dump_stack_lvl+0x241/0x360 [ 430.196531][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.196560][ T31] ? __pfx__printk+0x10/0x10 [ 430.196612][ T31] nmi_cpu_backtrace+0x4ab/0x4e0 [ 430.196647][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 430.196691][ T31] ? _printk+0xd5/0x120 [ 430.196718][ T31] ? __wake_up_klogd+0xcc/0x110 [ 430.196741][ T31] ? __pfx__printk+0x10/0x10 [ 430.196772][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.196804][ T31] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 430.196838][ T31] watchdog+0x1058/0x10a0 [ 430.196865][ T31] ? watchdog+0x1ea/0x10a0 [ 430.196895][ T31] ? __pfx_watchdog+0x10/0x10 [ 430.196920][ T31] kthread+0x7b7/0x940 [ 430.196944][ T31] ? __pfx_watchdog+0x10/0x10 [ 430.196970][ T31] ? __pfx_kthread+0x10/0x10 [ 430.196989][ T31] ? __pfx_kthread+0x10/0x10 [ 430.197011][ T31] ? __pfx_kthread+0x10/0x10 [ 430.197032][ T31] ? __pfx_kthread+0x10/0x10 [ 430.197063][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.197091][ T31] ? lockdep_hardirqs_on+0x9d/0x150 [ 430.197112][ T31] ? __pfx_kthread+0x10/0x10 [ 430.197135][ T31] ret_from_fork+0x4b/0x80 [ 430.197152][ T31] ? __pfx_kthread+0x10/0x10 [ 430.197174][ T31] ret_from_fork_asm+0x1a/0x30 [ 430.197221][ T31] [ 430.197229][ T31] Sending NMI from CPU 1 to CPUs 0: [ 430.358009][ C0] NMI backtrace for cpu 0 [ 430.358025][ C0] CPU: 0 UID: 0 PID: 5849 Comm: syz-executor529 Not tainted 6.15.0-rc2-syzkaller-00471-g119009db2674 #0 PREEMPT(full) [ 430.358047][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 430.358058][ C0] RIP: 0010:check_preemption_disabled+0x6a/0x120 [ 430.358084][ C0] Code: 00 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <74> c7 49 89 f6 49 89 ff 65 4c 8b 2c 25 08 10 65 93 41 f6 45 2f 04 [ 430.358098][ C0] RSP: 0018:ffffc90003f5f2d8 EFLAGS: 00000046 [ 430.358113][ C0] RAX: 0000000080000000 RBX: 0000000000000000 RCX: ffff888030afbc00 [ 430.358125][ C0] RDX: 0000000000000000 RSI: ffffffff8e4c7ff1 RDI: ffffffff8ca0e180 [ 430.358137][ C0] RBP: ffffffff93651020 R08: ffff88807c6bc34f R09: 1ffff1100f8d7869 [ 430.358149][ C0] R10: dffffc0000000000 R11: ffffed100f8d786a R12: ffffffff93651020 [ 430.358162][ C0] R13: 0000000000000246 R14: 00000000ffffffff R15: ffffffff8ed3df80 [ 430.358173][ C0] FS: 00007f55dfaf86c0(0000) GS:ffff888124fcf000(0000) knlGS:0000000000000000 [ 430.358187][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 430.358199][ C0] CR2: 00007fff2eb77468 CR3: 0000000027afe000 CR4: 00000000003526f0 [ 430.358213][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 430.358223][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 430.358233][ C0] Call Trace: [ 430.358242][ C0] [ 430.358251][ C0] lock_is_held_type+0x112/0x1a0 [ 430.358271][ C0] __might_resched+0xa8/0x6c0 [ 430.358299][ C0] ? __pfx___might_resched+0x10/0x10 [ 430.358330][ C0] down_read+0x90/0xa50 [ 430.358349][ C0] ? __lock_acquire+0xad5/0xd80 [ 430.358373][ C0] ? __pfx_down_read+0x10/0x10 [ 430.358400][ C0] f2fs_allocate_pinning_section+0xac/0x4e0 [ 430.358427][ C0] f2fs_expand_inode_data+0x6ed/0xde0 [ 430.358452][ C0] ? __pfx___might_resched+0x10/0x10 [ 430.358485][ C0] ? __pfx_f2fs_expand_inode_data+0x10/0x10 [ 430.358514][ C0] ? mnt_put_write_access_file+0xbf/0x100 [ 430.358539][ C0] ? file_modified_flags+0x449/0x4e0 [ 430.358565][ C0] f2fs_fallocate+0x537/0xa10 [ 430.358588][ C0] ? __pfx_f2fs_fallocate+0x10/0x10 [ 430.358610][ C0] vfs_fallocate+0x627/0x7a0 [ 430.358631][ C0] ? __pfx_vfs_fallocate+0x10/0x10 [ 430.358652][ C0] do_vfs_ioctl+0x2057/0x2750 [ 430.358681][ C0] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 430.358717][ C0] ? kasan_quarantine_put+0xdc/0x230 [ 430.358733][ C0] ? lockdep_hardirqs_on+0x9d/0x150 [ 430.358753][ C0] ? tomoyo_path_number_perm+0x215/0x790 [ 430.358781][ C0] ? tomoyo_path_number_perm+0x684/0x790 [ 430.358803][ C0] ? tomoyo_path_number_perm+0x215/0x790 [ 430.358823][ C0] ? smack_log+0x132/0x630 [ 430.358837][ C0] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 430.358860][ C0] ? __pfx_smack_log+0x10/0x10 [ 430.358875][ C0] ? smk_access+0x4ab/0x4e0 [ 430.358909][ C0] ? smk_tskacc+0x300/0x370 [ 430.358925][ C0] ? smack_file_ioctl+0x2a7/0x3b0 [ 430.358945][ C0] ? __pfx_smack_file_ioctl+0x10/0x10 [ 430.358965][ C0] ? __fget_files+0x2a/0x420 [ 430.358985][ C0] ? __fget_files+0x2a/0x420 [ 430.359007][ C0] __se_sys_ioctl+0x80/0x160 [ 430.359033][ C0] do_syscall_64+0xf3/0x210 [ 430.359050][ C0] ? clear_bhb_loop+0x45/0xa0 [ 430.359068][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.359084][ C0] RIP: 0033:0x7f55dfb43589 [ 430.359099][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 430.359111][ C0] RSP: 002b:00007f55dfaf8218 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 430.359127][ C0] RAX: ffffffffffffffda RBX: 00007f55dfbcf608 RCX: 00007f55dfb43589 [ 430.359138][ C0] RDX: 0000200000000140 RSI: 0000000040305828 RDI: 0000000000000005 [ 430.359149][ C0] RBP: 00007f55dfbcf600 R08: 0000000000000000 R09: 0000000000000000 [ 430.359158][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f55dfb9c6f0 [ 430.359168][ C0] R13: 0000200000000140 R14: 0000200000000020 R15: 0000200000000000 [ 430.359187][ C0] [ 430.359194][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.186 msecs [ 430.360059][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 430.777495][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc2-syzkaller-00471-g119009db2674 #0 PREEMPT(full) [ 430.789308][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 430.799367][ T31] Call Trace: [ 430.802659][ T31] [ 430.805599][ T31] dump_stack_lvl+0x241/0x360 [ 430.810291][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.815499][ T31] ? __pfx__printk+0x10/0x10 [ 430.820114][ T31] ? vscnprintf+0x5d/0x90 [ 430.824460][ T31] panic+0x349/0x880 [ 430.828363][ T31] ? __pfx_preempt_schedule+0x10/0x10 [ 430.833749][ T31] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.839920][ T31] ? __pfx_panic+0x10/0x10 [ 430.844439][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 430.849841][ T31] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.856041][ T31] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 430.862222][ T31] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 430.868391][ T31] watchdog+0x1097/0x10a0 [ 430.872736][ T31] ? watchdog+0x1ea/0x10a0 [ 430.877170][ T31] ? __pfx_watchdog+0x10/0x10 [ 430.881859][ T31] kthread+0x7b7/0x940 [ 430.885938][ T31] ? __pfx_watchdog+0x10/0x10 [ 430.890628][ T31] ? __pfx_kthread+0x10/0x10 [ 430.895232][ T31] ? __pfx_kthread+0x10/0x10 [ 430.899824][ T31] ? __pfx_kthread+0x10/0x10 [ 430.904420][ T31] ? __pfx_kthread+0x10/0x10 [ 430.909015][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.914226][ T31] ? lockdep_hardirqs_on+0x9d/0x150 [ 430.919445][ T31] ? __pfx_kthread+0x10/0x10 [ 430.924043][ T31] ret_from_fork+0x4b/0x80 [ 430.928465][ T31] ? __pfx_kthread+0x10/0x10 [ 430.933060][ T31] ret_from_fork_asm+0x1a/0x30 [ 430.937849][ T31] [ 430.941259][ T31] Kernel Offset: disabled [ 430.945636][ T31] Rebooting in 86400 seconds..