./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1013212111 <...> Warning: Permanently added '10.128.1.164' (ED25519) to the list of known hosts. execve("./syz-executor1013212111", ["./syz-executor1013212111"], 0x7ffddba06c90 /* 10 vars */) = 0 brk(NULL) = 0x555564258000 brk(0x555564258d40) = 0x555564258d40 arch_prctl(ARCH_SET_FS, 0x5555642583c0) = 0 set_tid_address(0x555564258690) = 5818 set_robust_list(0x5555642586a0, 24) = 0 rseq(0x555564258ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1013212111", 4096) = 28 getrandom("\xdb\x43\x49\x4d\x2c\x78\x7b\xe7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555564258d40 brk(0x555564279d40) = 0x555564279d40 brk(0x55556427a000) = 0x55556427a000 mprotect(0x7f60536a5000, 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 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 5819 attached [pid 5819] set_robust_list(0x5555642586a0, 24 [pid 5818] <... clone resumed>, child_tidptr=0x555564258690) = 5819 [pid 5819] <... set_robust_list resumed>) = 0 [pid 5819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5819] setpgid(0, 0) = 0 [pid 5819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5819] write(3, "1000", 4) = 4 [pid 5819] close(3) = 0 [pid 5819] write(1, "executing program\n", 18executing program ) = 18 [pid 5819] futex(0x7f60536ab5ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5819] rt_sigaction(SIGRT_1, {sa_handler=0x7f60536492f0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f605363a9a0}, NULL, 8) = 0 [pid 5819] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5819] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f60535ba000 [pid 5819] mprotect(0x7f60535bb000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5819] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5819] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f60535da990, parent_tid=0x7f60535da990, exit_signal=0, stack=0x7f60535ba000, stack_size=0x20300, tls=0x7f60535da6c0}./strace-static-x86_64: Process 5821 attached [pid 5821] rseq(0x7f60535dafe0, 0x20, 0, 0x53053053) = 0 [pid 5819] <... clone3 resumed> => {parent_tid=[5821]}, 88) = 5821 [pid 5821] set_robust_list(0x7f60535da9a0, 24 [pid 5819] rt_sigprocmask(SIG_SETMASK, [], [pid 5821] <... set_robust_list resumed>) = 0 [pid 5821] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5819] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5821] futex(0x7f60536ab5e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5819] futex(0x7f60536ab5e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5819] futex(0x7f60536ab5ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5821] memfd_create("syzkaller", 0) = 3 [pid 5821] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f604b000000 [pid 5821] write(3, "\xeb\x76\x90\x45\x58\x46\x41\x54\x20\x20\x20\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\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x08\x00\x00\x00\x88\x00\x00\x00\x0f\x00\x00\x00\x05\x00\x00\x00"..., 131072) = 131072 [pid 5821] munmap(0x7f604b000000, 138412032) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5821] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5821] close(3) = 0 [pid 5821] close(4) = 0 [pid 5821] mkdir("./file2", 0777) = 0 [ 66.742763][ T5821] loop0: detected capacity change from 0 to 256 [pid 5821] mount("/dev/loop0", "./file2", "exfat", MS_NOSUID|MS_SYNCHRONOUS|MS_NODIRATIME, "") = 0 [pid 5821] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5821] chdir("./file2") = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5821] futex(0x7f60536ab5ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5819] <... futex resumed>) = 0 [pid 5821] truncate("./file2", 25600 [pid 5819] futex(0x7f60536ab5e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5819] futex(0x7f60536ab5ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5821] <... truncate resumed>) = 0 [pid 5821] futex(0x7f60536ab5ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5819] <... futex resumed>) = 0 [ 66.784103][ T5821] exFAT-fs (loop0): failed to load upcase table (idx : 0x0000fd4f, chksum : 0x3963664b, utbl_chksum : 0xe619d30d) [pid 5821] futex(0x7f60536ab5e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5819] futex(0x7f60536ab5e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5821] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5819] <... futex resumed>) = 0 [pid 5821] openat(AT_FDCWD, "./file1", O_RDONLY [pid 5819] futex(0x7f60536ab5ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5821] <... openat resumed>) = 4 [pid 5821] futex(0x7f60536ab5ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5819] <... futex resumed>) = 0 [pid 5821] <... futex resumed>) = 1 [pid 5819] futex(0x7f60536ab5e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5821] truncate("./file2", 6 [pid 5819] <... futex resumed>) = 0 [ 66.862037][ T5821] exFAT-fs (loop0): valid_size(150994954) is greater than size(10) [pid 5819] futex(0x7f60536ab5ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5819] exit_group(0) = ? [pid 5818] kill(-5819, SIGKILL) = 0 [pid 5818] kill(5819, SIGKILL) = 0 [pid 5818] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5818] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5818] getdents64(3, 0x555564259730 /* 2 entries */, 32768) = 48 [pid 5818] getdents64(3, 0x555564259730 /* 0 entries */, 32768) = 0 [pid 5818] close(3) = 0 [ 81.968976][ T972] cfg80211: failed to load regulatory.db [ 286.760139][ T30] INFO: task kworker/u8:0:11 blocked for more than 143 seconds. [ 286.767992][ T30] Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0 [ 286.777618][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.786519][ T30] task:kworker/u8:0 state:D stack:24048 pid:11 tgid:11 ppid:2 flags:0x00004000 [ 286.796940][ T30] Workqueue: writeback wb_workfn (flush-7:0) [ 286.803243][ T30] Call Trace: [ 286.806586][ T30] [ 286.809529][ T30] __schedule+0x17fb/0x4be0 [ 286.814462][ T30] ? __pfx___schedule+0x10/0x10 [ 286.819342][ T30] ? __blk_flush_plug+0x449/0x500 [ 286.824701][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.829788][ T30] ? kthread_data+0x52/0xd0 [ 286.834547][ T30] ? schedule+0x90/0x320 [ 286.838813][ T30] ? wq_worker_sleeping+0x66/0x240 [ 286.844166][ T30] ? schedule+0x90/0x320 [ 286.848432][ T30] schedule+0x14b/0x320 [ 286.852801][ T30] schedule_preempt_disabled+0x13/0x30 [ 286.858280][ T30] __mutex_lock+0x7e7/0xee0 [ 286.863045][ T30] ? __mutex_lock+0x5ef/0xee0 [ 286.867750][ T30] ? exfat_write_inode+0xe5/0x1a0 [ 286.873048][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 286.878105][ T30] ? __writeback_single_inode+0x48f/0x10d0 [ 286.884406][ T30] ? do_raw_spin_unlock+0x13c/0x8b0 [ 286.889641][ T30] exfat_write_inode+0xe5/0x1a0 [ 286.894985][ T30] __writeback_single_inode+0x708/0x10d0 [ 286.900826][ T30] writeback_sb_inodes+0x820/0x1360 [ 286.906049][ T30] ? mark_lock+0x2ae/0x360 [ 286.910704][ T30] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 286.916401][ T30] ? __pfx___up_read+0x10/0x10 [ 286.921393][ T30] ? do_raw_spin_lock+0x14f/0x370 [ 286.926450][ T30] __writeback_inodes_wb+0x11b/0x260 [ 286.931958][ T30] wb_writeback+0x427/0xb80 [ 286.936492][ T30] ? queue_io+0x361/0x5a0 [ 286.941082][ T30] ? __pfx_wb_writeback+0x10/0x10 [ 286.946147][ T30] wb_workfn+0xc4b/0x1080 [ 286.950726][ T30] ? __pfx_wb_workfn+0x10/0x10 [ 286.955606][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.961807][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 286.968166][ T30] ? process_scheduled_works+0x976/0x1840 [ 286.974100][ T30] process_scheduled_works+0xa66/0x1840 [ 286.979699][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 286.985902][ T30] ? assign_work+0x364/0x3d0 [ 286.990687][ T30] worker_thread+0x870/0xd30 [ 286.995314][ T30] ? __kthread_parkme+0x169/0x1d0 [ 287.001051][ T30] ? __pfx_worker_thread+0x10/0x10 [ 287.006189][ T30] kthread+0x2f0/0x390 [ 287.010603][ T30] ? __pfx_worker_thread+0x10/0x10 [ 287.015737][ T30] ? __pfx_kthread+0x10/0x10 [ 287.020581][ T30] ret_from_fork+0x4b/0x80 [ 287.025053][ T30] ? __pfx_kthread+0x10/0x10 [ 287.029659][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.034739][ T30] [ 287.037953][ T30] [ 287.037953][ T30] Showing all locks held in the system: [ 287.045925][ T30] 4 locks held by kworker/u8:0/11: [ 287.051228][ T30] #0: ffff88801eead148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 [ 287.062688][ T30] #1: ffffc90000107d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 [ 287.075383][ T30] #2: ffff88807136a0e0 (&type->s_umount_key#43){.+.+}-{4:4}, at: super_trylock_shared+0x22/0xf0 [ 287.086174][ T30] #3: ffff88807136c0e8 (&sbi->s_lock){+.+.}-{4:4}, at: exfat_write_inode+0xe5/0x1a0 [ 287.095888][ T30] 1 lock held by khungtaskd/30: [ 287.100953][ T30] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 287.111289][ T30] 2 locks held by kworker/u8:6/2964: [ 287.116590][ T30] #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 [ 287.128779][ T30] #1: ffff8880b8628948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 [ 287.140439][ T30] 1 lock held by syslogd/5176: [ 287.145212][ T30] #0: ffff8880b873e758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 287.155430][ T30] 2 locks held by getty/5583: [ 287.160271][ T30] #0: ffff8880313f90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.170339][ T30] #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 [ 287.180657][ T30] 5 locks held by syz-executor101/5821: [ 287.186397][ T30] [ 287.188735][ T30] ============================================= [ 287.188735][ T30] [ 287.197482][ T30] NMI backtrace for cpu 0 [ 287.201835][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0 [ 287.212347][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.222415][ T30] Call Trace: [ 287.225705][ T30] [ 287.228643][ T30] dump_stack_lvl+0x241/0x360 [ 287.233340][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.238559][ T30] ? __pfx__printk+0x10/0x10 [ 287.243175][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.248214][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.253681][ T30] ? _printk+0xd5/0x120 [ 287.257846][ T30] ? __pfx__printk+0x10/0x10 [ 287.262451][ T30] ? __wake_up_klogd+0xcc/0x110 [ 287.267328][ T30] ? __pfx__printk+0x10/0x10 [ 287.271937][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 287.276971][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.282968][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.288962][ T30] watchdog+0xff6/0x1040 [ 287.293245][ T30] ? watchdog+0x1ea/0x1040 [ 287.297677][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.302369][ T30] kthread+0x2f0/0x390 [ 287.306453][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.311138][ T30] ? __pfx_kthread+0x10/0x10 [ 287.315739][ T30] ret_from_fork+0x4b/0x80 [ 287.320167][ T30] ? __pfx_kthread+0x10/0x10 [ 287.324767][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.329560][ T30] [ 287.332736][ T30] Sending NMI from CPU 0 to CPUs 1: [ 287.337966][ C1] NMI backtrace for cpu 1 [ 287.337978][ C1] CPU: 1 UID: 0 PID: 5821 Comm: syz-executor101 Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0 [ 287.337997][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.338007][ C1] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x8/0x90 [ 287.338028][ C1] Code: cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 14 25 80 d4 03 00 65 8b 05 80 73 64 7e 25 00 01 ff 00 74 [ 287.338040][ C1] RSP: 0018:ffffc9000402f5a8 EFLAGS: 00000247 [ 287.338055][ C1] RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff82269f44 [ 287.338066][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 [ 287.338076][ C1] RBP: 0000000000000001 R08: ffffffff82269f61 R09: 1ffffffff203075e [ 287.338087][ C1] R10: dffffc0000000000 R11: fffffbfff203075f R12: ffff8880770f4d98 [ 287.338105][ C1] R13: 0000000000039838 R14: dffffc0000000000 R15: 0000000000000080 [ 287.338116][ C1] FS: 00007f60535da6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 287.338130][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.338141][ C1] CR2: 000055a2373b3600 CR3: 000000007a9e4000 CR4: 00000000003526f0 [ 287.338155][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.338165][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.338175][ C1] Call Trace: [ 287.338181][ C1] [ 287.338188][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.338206][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 287.338224][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.338240][ C1] ? nmi_handle+0x2a/0x5a0 [ 287.338289][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.338309][ C1] ? nmi_handle+0x14f/0x5a0 [ 287.338325][ C1] ? nmi_handle+0x2a/0x5a0 [ 287.338341][ C1] ? __sanitizer_cov_trace_const_cmp1+0x8/0x90 [ 287.338357][ C1] ? default_do_nmi+0x63/0x160 [ 287.338412][ C1] ? exc_nmi+0x123/0x1f0 [ 287.338427][ C1] ? end_repeat_nmi+0xf/0x53 [ 287.338494][ C1] ? touch_buffer+0x81/0x240 [ 287.338522][ C1] ? touch_buffer+0x64/0x240 [ 287.338539][ C1] ? __sanitizer_cov_trace_const_cmp1+0x8/0x90 [ 287.338555][ C1] ? __sanitizer_cov_trace_const_cmp1+0x8/0x90 [ 287.338572][ C1] ? __sanitizer_cov_trace_const_cmp1+0x8/0x90 [ 287.338588][ C1] [ 287.338593][ C1] [ 287.338598][ C1] touch_buffer+0x81/0x240 [ 287.338617][ C1] __find_get_block+0x58a/0x1150 [ 287.338639][ C1] ? __pfx___find_get_block+0x10/0x10 [ 287.338658][ C1] ? __pfx___might_resched+0x10/0x10 [ 287.338678][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.338696][ C1] ? irqentry_exit+0x63/0x90 [ 287.338714][ C1] ? fs_reclaim_acquire+0x93/0x130 [ 287.338743][ C1] bdev_getblk+0x33/0x670 [ 287.338763][ C1] ? mark_buffer_dirty+0xd8/0x440 [ 287.338781][ C1] ? mark_buffer_dirty+0x100/0x440 [ 287.338804][ C1] __bread_gfp+0x86/0x400 [ 287.338824][ C1] exfat_ent_get+0x14d/0x400 [ 287.338842][ C1] __exfat_free_cluster+0x56f/0x990 [ 287.338863][ C1] ? __pfx___exfat_free_cluster+0x10/0x10 [ 287.338881][ C1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 287.338902][ C1] exfat_free_cluster+0x77/0xd0 [ 287.338918][ C1] __exfat_truncate+0x745/0xa60 [ 287.338938][ C1] ? __pfx___exfat_truncate+0x10/0x10 [ 287.338954][ C1] ? block_truncate_page+0x6b3/0x800 [ 287.338971][ C1] ? truncate_setsize+0xcf/0xf0 [ 287.338995][ C1] exfat_setattr+0x10fa/0x1a90 [ 287.339015][ C1] ? __pfx_smack_inode_setattr+0x10/0x10 [ 287.339092][ C1] ? __pfx_exfat_setattr+0x10/0x10 [ 287.339113][ C1] ? evm_inode_setattr+0x1b2/0x7d0 [ 287.339159][ C1] ? security_inode_setattr+0xdb/0x350 [ 287.339187][ C1] ? __pfx_exfat_setattr+0x10/0x10 [ 287.339205][ C1] notify_change+0xbca/0xe90 [ 287.339234][ C1] do_truncate+0x220/0x310 [ 287.339253][ C1] ? __pfx_do_truncate+0x10/0x10 [ 287.339276][ C1] ? bpf_lsm_path_truncate+0x9/0x10 [ 287.339307][ C1] vfs_truncate+0x2e1/0x3b0 [ 287.339327][ C1] do_sys_truncate+0xdb/0x190 [ 287.339344][ C1] ? __pfx_do_sys_truncate+0x10/0x10 [ 287.339361][ C1] ? do_syscall_64+0x100/0x230 [ 287.339401][ C1] do_syscall_64+0xf3/0x230 [ 287.339420][ C1] ? clear_bhb_loop+0x35/0x90 [ 287.339440][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.339459][ C1] RIP: 0033:0x7f6053623409 [ 287.339478][ C1] 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 [ 287.339490][ C1] RSP: 002b:00007f60535da218 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 287.339506][ C1] RAX: ffffffffffffffda RBX: 00007f60536ab5e8 RCX: 00007f6053623409 [ 287.339517][ C1] RDX: 00007f6053623409 RSI: 0000000000000006 RDI: 0000000020000100 [ 287.339528][ C1] RBP: 00007f60536ab5e0 R08: 0000000000000000 R09: 0000000000000000 [ 287.339538][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0032656c69662f2e [ 287.339548][ C1] R13: 00007f60536770c0 R14: 00000000200002c0 R15: 0031656c69662f2e [ 287.339566][ C1] [ 287.339574][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.607 msecs [ 287.839231][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 287.846104][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0 [ 287.856623][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 287.866686][ T30] Call Trace: [ 287.869969][ T30] [ 287.872917][ T30] dump_stack_lvl+0x241/0x360 [ 287.877617][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.882824][ T30] ? __pfx__printk+0x10/0x10 [ 287.887432][ T30] ? vscnprintf+0x5d/0x90 [ 287.891775][ T30] panic+0x349/0x880 [ 287.895704][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.901872][ T30] ? __pfx_panic+0x10/0x10 [ 287.906297][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 287.911710][ T30] ? __irq_work_queue_local+0x137/0x410 [ 287.917278][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 287.922659][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.928820][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 287.934985][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 287.941152][ T30] watchdog+0x1035/0x1040 [ 287.945494][ T30] ? watchdog+0x1ea/0x1040 [ 287.949923][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.954605][ T30] kthread+0x2f0/0x390 [ 287.958683][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.963377][ T30] ? __pfx_kthread+0x10/0x10 [ 287.967975][ T30] ret_from_fork+0x4b/0x80 [ 287.972400][ T30] ? __pfx_kthread+0x10/0x10 [ 287.976998][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.981786][ T30] [ 287.985075][ T30] Kernel Offset: disabled [ 287.989397][ T30] Rebooting in 86400 seconds..