./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor29939248 <...> Warning: Permanently added '10.128.10.34' (ED25519) to the list of known hosts. execve("./syz-executor29939248", ["./syz-executor29939248"], 0x7ffebfbe7680 /* 10 vars */) = 0 brk(NULL) = 0x555555920000 brk(0x555555920d00) = 0x555555920d00 arch_prctl(ARCH_SET_FS, 0x555555920380) = 0 set_tid_address(0x555555920650) = 5045 set_robust_list(0x555555920660, 24) = 0 rseq(0x555555920ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor29939248", 4096) = 26 getrandom("\x8d\xbd\x6a\xad\x53\xc6\x6c\x25", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555920d00 brk(0x555555941d00) = 0x555555941d00 brk(0x555555942000) = 0x555555942000 mprotect(0x7f5c6d094000, 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 5046 attached [pid 5046] set_robust_list(0x555555920660, 24) = 0 [pid 5046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5046] setpgid(0, 0) = 0 [pid 5046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5045] <... clone resumed>, child_tidptr=0x555555920650) = 5046 [pid 5046] <... openat resumed>) = 3 [pid 5046] write(3, "1000", 4) = 4 [pid 5046] close(3) = 0 [pid 5046] memfd_create("syzkaller", 0) = 3 [pid 5046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5c64a00000 [pid 5046] 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"..., 16777216) = 16777216 [pid 5046] munmap(0x7f5c64a00000, 138412032) = 0 [pid 5046] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5046] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5046] close(3) = 0 [pid 5046] close(4) = 0 [pid 5046] mkdir("./file0", 0777) = 0 [ 53.645935][ T5046] loop0: detected capacity change from 0 to 32768 [ 53.673337][ T5046] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 53.682047][ T5046] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 53.699084][ T5046] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 53.707359][ T27] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 53.714294][ T27] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [pid 5046] mount("/dev/loop0", "./file0", "gfs2", 0, "" [pid 5045] kill(-5046, SIGKILL) = 0 [pid 5045] kill(5046, SIGKILL) = 0 [pid 5045] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5045] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5045] getdents64(3, 0x5555559216f0 /* 2 entries */, 32768) = 48 [pid 5045] getdents64(3, 0x5555559216f0 /* 0 entries */, 32768) = 0 [pid 5045] close(3) = 0 [ 76.692321][ T1139] cfg80211: failed to load regulatory.db [ 286.611863][ T29] INFO: task kworker/1:1:27 blocked for more than 143 seconds. [ 286.619437][ T29] Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 286.626705][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.635396][ T29] task:kworker/1:1 state:D stack:26728 pid:27 tgid:27 ppid:2 flags:0x00004000 [ 286.645599][ T29] Workqueue: gfs2_recovery gfs2_recover_func [ 286.651597][ T29] Call Trace: [ 286.654901][ T29] [ 286.657829][ T29] __schedule+0x177f/0x4960 [ 286.662366][ T29] ? schedule+0x8e/0x260 [ 286.666609][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.671360][ T29] ? read_lock_is_recursive+0x20/0x20 [ 286.676742][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.681507][ T29] ? release_firmware_map_entry+0x190/0x190 [ 286.687461][ T29] ? lock_release+0xbf/0x9c0 [ 286.692088][ T29] ? __lock_acquire+0x1fd0/0x1fd0 [ 286.697111][ T29] ? schedule+0x8e/0x260 [ 286.701338][ T29] ? wq_worker_sleeping+0x66/0x240 [ 286.706477][ T29] ? print_irqtrace_events+0x220/0x220 [ 286.711961][ T29] ? schedule+0x8e/0x260 [ 286.716188][ T29] schedule+0x149/0x260 [ 286.720347][ T29] io_schedule+0x8c/0x100 [ 286.724710][ T29] folio_wait_bit_common+0x881/0x12b0 [ 286.730091][ T29] ? folio_wait_bit+0x30/0x30 [ 286.734780][ T29] ? _compound_head+0x120/0x120 [ 286.739633][ T29] ? __filemap_get_folio+0x72d/0xbb0 [ 286.744932][ T29] gfs2_jhead_process_page+0x194/0x750 [ 286.750400][ T29] ? gfs2_end_log_read+0x660/0x660 [ 286.755546][ T29] ? submit_bio_noacct+0x1007/0x1c20 [ 286.760893][ T29] gfs2_find_jhead+0xd68/0xf10 [ 286.765711][ T29] ? gfs2_end_log_write+0x8a0/0x8a0 [ 286.770920][ T29] ? gfs2_jdesc_check+0x1f6/0x290 [ 286.775974][ T29] gfs2_recover_func+0x6b7/0x1f10 [ 286.781013][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.785817][ T29] ? __get_log_header+0x4e0/0x4e0 [ 286.790842][ T29] ? lock_release+0xbf/0x9c0 [ 286.795451][ T29] ? do_raw_spin_lock+0x14e/0x370 [ 286.800474][ T29] ? __lock_acquire+0x1fd0/0x1fd0 [ 286.805512][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.810710][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.815490][ T29] ? process_scheduled_works+0x825/0x1420 [ 286.821210][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.825993][ T29] ? debug_print_object+0x1e0/0x1e0 [ 286.831194][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.835994][ T29] ? process_scheduled_works+0x825/0x1420 [ 286.841712][ T29] process_scheduled_works+0x90f/0x1420 [ 286.847296][ T29] ? assign_work+0x3d0/0x3d0 [ 286.851908][ T29] ? assign_work+0x364/0x3d0 [ 286.856500][ T29] worker_thread+0xa5f/0x1000 [ 286.861161][ T29] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.867098][ T29] kthread+0x2d3/0x370 [ 286.871172][ T29] ? pr_cont_work+0x5e0/0x5e0 [ 286.875863][ T29] ? kthread_blkcg+0xd0/0xd0 [ 286.880448][ T29] ret_from_fork+0x48/0x80 [ 286.884875][ T29] ? kthread_blkcg+0xd0/0xd0 [ 286.889460][ T29] ret_from_fork_asm+0x11/0x20 [ 286.894266][ T29] [ 286.897378][ T29] INFO: task syz-executor299:5046 blocked for more than 143 seconds. [ 286.905451][ T29] Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 286.912645][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.921302][ T29] task:syz-executor299 state:D stack:25072 pid:5046 tgid:5046 ppid:5045 flags:0x00004006 [ 286.931468][ T29] Call Trace: [ 286.934782][ T29] [ 286.937696][ T29] __schedule+0x177f/0x4960 [ 286.942249][ T29] ? schedule+0x8e/0x260 [ 286.946495][ T29] ? rcu_is_watching+0x15/0xb0 [ 286.951240][ T29] ? release_firmware_map_entry+0x190/0x190 [ 286.957176][ T29] ? __lock_acquire+0x1fd0/0x1fd0 [ 286.962227][ T29] ? preempt_schedule_thunk+0x1a/0x30 [ 286.967585][ T29] ? _raw_spin_unlock_irqrestore+0x12c/0x140 [ 286.973574][ T29] ? schedule+0x8e/0x260 [ 286.977816][ T29] schedule+0x149/0x260 [ 286.981982][ T29] bit_wait+0x12/0xc0 [ 286.985961][ T29] __wait_on_bit+0xac/0x2e0 [ 286.990446][ T29] ? out_of_line_wait_on_bit_lock+0x250/0x250 [ 286.996522][ T29] out_of_line_wait_on_bit+0x1d4/0x250 [ 287.002019][ T29] ? out_of_line_wait_on_bit_lock+0x250/0x250 [ 287.008068][ T29] ? __wait_on_bit+0x2e0/0x2e0 [ 287.012860][ T29] ? bit_waitqueue+0x30/0x30 [ 287.017461][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.022683][ T29] ? gfs2_journal_wipe+0x8f0/0x8f0 [ 287.027797][ T29] gfs2_recover_journal+0xf2/0x150 [ 287.032918][ T29] init_journal+0x1841/0x23f0 [ 287.037600][ T29] ? init_inodes+0xdc/0x310 [ 287.042114][ T29] ? _compound_head+0x120/0x120 [ 287.046964][ T29] ? init_sb+0xc37/0x1330 [ 287.051274][ T29] ? snprintf+0xda/0x120 [ 287.055538][ T29] ? init_inodes+0xdc/0x310 [ 287.060042][ T29] ? vscnprintf+0x80/0x80 [ 287.064387][ T29] init_inodes+0xdc/0x310 [ 287.068719][ T29] gfs2_fill_super+0x1ece/0x26b0 [ 287.073685][ T29] ? gfs2_reconfigure+0xbb0/0xbb0 [ 287.078709][ T29] ? snprintf+0xda/0x120 [ 287.082968][ T29] ? __lock_acquire+0x1fd0/0x1fd0 [ 287.087990][ T29] ? do_raw_spin_lock+0x14e/0x370 [ 287.093094][ T29] ? vscnprintf+0x80/0x80 [ 287.097432][ T29] ? set_blocksize+0x1df/0x380 [ 287.102207][ T29] ? init_locking+0xbd/0x210 [ 287.106800][ T29] ? sb_set_blocksize+0x99/0x100 [ 287.111783][ T29] ? setup_bdev_super+0x4c8/0x5c0 [ 287.116806][ T29] get_tree_bdev+0x3f3/0x560 [ 287.121378][ T29] ? gfs2_reconfigure+0xbb0/0xbb0 [ 287.126432][ T29] ? setup_bdev_super+0x5c0/0x5c0 [ 287.131465][ T29] ? vfs_parse_fs_param+0x410/0x410 [ 287.136682][ T29] gfs2_get_tree+0x54/0x210 [ 287.141185][ T29] ? bpf_lsm_capable+0x9/0x10 [ 287.145888][ T29] vfs_get_tree+0x8c/0x2a0 [ 287.150315][ T29] do_new_mount+0x2be/0xb40 [ 287.154846][ T29] ? ns_capable+0x89/0xe0 [ 287.159194][ T29] ? do_move_mount_old+0x170/0x170 [ 287.164348][ T29] __se_sys_mount+0x2d9/0x3c0 [ 287.169028][ T29] ? __x64_sys_mount+0xc0/0xc0 [ 287.173813][ T29] ? __x64_sys_mount+0x20/0xc0 [ 287.178580][ T29] do_syscall_64+0xf5/0x230 [ 287.183102][ T29] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 287.189003][ T29] RIP: 0033:0x7f5c6cfead7a [ 287.193434][ T29] RSP: 002b:00007fff2aa5c4d8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 287.201882][ T29] RAX: ffffffffffffffda RBX: 00007fff2aa5c4f0 RCX: 00007f5c6cfead7a [ 287.209833][ T29] RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007fff2aa5c4f0 [ 287.217809][ T29] RBP: 0000000000000004 R08: 00007fff2aa5c530 R09: 0000000000037f88 [ 287.225791][ T29] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 [ 287.233766][ T29] R13: 00007fff2aa5c530 R14: 0000000000000003 R15: 0000000001000000 [ 287.241762][ T29] [ 287.244775][ T29] INFO: lockdep is turned off. [ 287.249509][ T29] NMI backtrace for cpu 0 [ 287.253809][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 287.263239][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 287.273288][ T29] Call Trace: [ 287.276558][ T29] [ 287.279484][ T29] dump_stack_lvl+0x1e7/0x2d0 [ 287.284165][ T29] ? tcp_gro_dev_warn+0x260/0x260 [ 287.289174][ T29] ? panic+0x850/0x850 [ 287.293230][ T29] ? vprintk_emit+0x607/0x720 [ 287.297899][ T29] ? printk_sprint+0x480/0x480 [ 287.302664][ T29] nmi_cpu_backtrace+0x498/0x4d0 [ 287.307596][ T29] ? nmi_trigger_cpumask_backtrace+0x310/0x310 [ 287.313734][ T29] ? _printk+0xd5/0x120 [ 287.317884][ T29] ? __rcu_read_unlock+0x100/0x100 [ 287.322992][ T29] ? panic+0x850/0x850 [ 287.327055][ T29] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 287.333111][ T29] nmi_trigger_cpumask_backtrace+0x198/0x310 [ 287.339077][ T29] watchdog+0xfaf/0xff0 [ 287.343220][ T29] ? watchdog+0x1e9/0xff0 [ 287.347538][ T29] kthread+0x2d3/0x370 [ 287.351588][ T29] ? hungtask_pm_notify+0x90/0x90 [ 287.356599][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.361172][ T29] ret_from_fork+0x48/0x80 [ 287.365575][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.370152][ T29] ret_from_fork_asm+0x11/0x20 [ 287.374910][ T29] [ 287.377999][ T29] Sending NMI from CPU 0 to CPUs 1: [ 287.383232][ C1] NMI backtrace for cpu 1 [ 287.383247][ C1] CPU: 1 PID: 4490 Comm: klogd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 287.383263][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 287.383271][ C1] RIP: 0010:__unwind_start+0x605/0x7a0 [ 287.383297][ C1] Code: dc 76 56 49 39 c4 77 51 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 18 80 3c 01 00 48 8b 5c 24 20 74 08 48 89 df e8 fb 4d ad 00 <48> 8b 1b 48 89 df 4c 8b 64 24 10 4c 89 e6 e8 88 bd 50 00 4c 39 e3 [ 287.383308][ C1] RSP: 0018:ffffc9000317f2d8 EFLAGS: 00000246 [ 287.383322][ C1] RAX: dffffc0000000000 RBX: ffffc9000317f378 RCX: 1ffff9200062fe6f [ 287.383333][ C1] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 287.383341][ C1] RBP: 1ffff9200062fe68 R08: ffffffff813e1b7f R09: ffffffff813e1680 [ 287.383352][ C1] R10: 0000000000000003 R11: ffff88807a7fbb80 R12: ffffc9000317f3d8 [ 287.383362][ C1] R13: ffffc9000317f350 R14: ffffc9000317f340 R15: ffffc9000317f348 [ 287.383372][ C1] FS: 00007f45548d9380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 287.383385][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.383394][ C1] CR2: 00005559534b8680 CR3: 000000002ac0d000 CR4: 00000000003506f0 [ 287.383407][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.383415][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.383423][ C1] Call Trace: [ 287.383428][ C1] [ 287.383433][ C1] ? nmi_cpu_backtrace+0x3be/0x4d0 [ 287.383449][ C1] ? read_lock_is_recursive+0x20/0x20 [ 287.383468][ C1] ? nmi_trigger_cpumask_backtrace+0x310/0x310 [ 287.383492][ C1] ? nmi_cpu_backtrace_handler+0xc/0x10 [ 287.383510][ C1] ? nmi_handle+0x14c/0x570 [ 287.383527][ C1] ? nmi_handle+0x2a/0x570 [ 287.383544][ C1] ? __unwind_start+0x605/0x7a0 [ 287.383563][ C1] ? default_do_nmi+0x63/0x150 [ 287.383579][ C1] ? exc_nmi+0x121/0x210 [ 287.383594][ C1] ? end_repeat_nmi+0xf/0x2a [ 287.383616][ C1] ? unwind_next_frame+0x1970/0x29e0 [ 287.383635][ C1] ? unwind_next_frame+0x1e6f/0x29e0 [ 287.383656][ C1] ? __unwind_start+0x605/0x7a0 [ 287.383676][ C1] ? __unwind_start+0x605/0x7a0 [ 287.383696][ C1] ? __unwind_start+0x605/0x7a0 [ 287.383715][ C1] [ 287.383719][ C1] [ 287.383725][ C1] ? stack_trace_save+0x1c0/0x1c0 [ 287.383744][ C1] arch_stack_walk+0xfd/0x1a0 [ 287.383760][ C1] ? arch_stack_walk+0xfd/0x1a0 [ 287.383775][ C1] stack_trace_save+0x117/0x1c0 [ 287.383794][ C1] ? stack_trace_snprint+0xf0/0xf0 [ 287.383812][ C1] ? _raw_read_unlock_irqrestore+0xdd/0x140 [ 287.383832][ C1] ? stack_trace_save+0x117/0x1c0 [ 287.383851][ C1] ? stack_trace_snprint+0xf0/0xf0 [ 287.383871][ C1] kasan_save_track+0x3f/0x70 [ 287.383909][ C1] __kasan_kmalloc+0x98/0xb0 [ 287.383928][ C1] __kmalloc_node_track_caller+0x249/0x4e0 [ 287.383949][ C1] ? __alloc_skb+0x1b1/0x420 [ 287.383968][ C1] ? __alloc_skb+0x1b1/0x420 [ 287.383984][ C1] kmalloc_reserve+0xf3/0x260 [ 287.384003][ C1] __alloc_skb+0x1b1/0x420 [ 287.384023][ C1] ? napi_build_skb+0x270/0x270 [ 287.384040][ C1] ? rcu_preempt_deferred_qs_irqrestore+0x87b/0xc60 [ 287.384060][ C1] alloc_skb_with_frags+0xc3/0x780 [ 287.384077][ C1] ? rcu_read_unlock_special+0x550/0x550 [ 287.384095][ C1] sock_alloc_send_pskb+0x919/0xa50 [ 287.384118][ C1] ? sock_kzfree_s+0x60/0x60 [ 287.384135][ C1] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.384157][ C1] unix_dgram_sendmsg+0x696/0x2200 [ 287.384181][ C1] ? tomoyo_socket_sendmsg_permission+0x287/0x410 [ 287.384206][ C1] ? unix_dgram_poll+0x6c0/0x6c0 [ 287.384222][ C1] ? lock_acquire+0xe3/0x530 [ 287.384238][ C1] ? rcu_is_watching+0x15/0xb0 [ 287.384263][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 287.384279][ C1] ? security_socket_sendmsg+0x81/0xa0 [ 287.384291][ C1] ? unix_dgram_poll+0x6c0/0x6c0 [ 287.384308][ C1] __sys_sendto+0x440/0x600 [ 287.384327][ C1] ? __ia32_sys_getpeername+0x90/0x90 [ 287.384356][ C1] ? print_irqtrace_events+0x220/0x220 [ 287.384371][ C1] ? rcu_is_watching+0x15/0xb0 [ 287.384391][ C1] ? print_irqtrace_events+0x220/0x220 [ 287.384407][ C1] ? rcu_is_watching+0x15/0xb0 [ 287.384427][ C1] __x64_sys_sendto+0xde/0xf0 [ 287.384445][ C1] do_syscall_64+0xf5/0x230 [ 287.384461][ C1] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 287.384479][ C1] RIP: 0033:0x7f4554a3b9b5 [ 287.384490][ C1] 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 [ 287.384500][ C1] RSP: 002b:00007ffcd9951ea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 287.384514][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4554a3b9b5 [ 287.384524][ C1] RDX: 000000000000004e RSI: 000055ba08597cc0 RDI: 0000000000000003 [ 287.384532][ C1] RBP: 000055ba08593910 R08: 0000000000000000 R09: 0000000000000000 [ 287.384541][ C1] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013 [ 287.384549][ C1] R13: 00007f4554bc9212 R14: 00007ffcd9951fa8 R15: 0000000000000000 [ 287.384565][ C1] [ 287.384570][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.338 msecs [ 287.385260][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 287.892977][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 287.902421][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 287.912471][ T29] Call Trace: [ 287.915762][ T29] [ 287.918683][ T29] dump_stack_lvl+0x1e7/0x2d0 [ 287.923446][ T29] ? tcp_gro_dev_warn+0x260/0x260 [ 287.928460][ T29] ? panic+0x850/0x850 [ 287.932519][ T29] ? nmi_cpu_backtrace+0x459/0x4d0 [ 287.937616][ T29] ? vscnprintf+0x5d/0x80 [ 287.941935][ T29] panic+0x349/0x850 [ 287.945821][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x310 [ 287.951959][ T29] ? __memcpy_flushcache+0x2b0/0x2b0 [ 287.957245][ T29] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 287.963313][ T29] ? preempt_schedule_thunk+0x1a/0x30 [ 287.968682][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x310 [ 287.974842][ T29] ? nmi_trigger_cpumask_backtrace+0x2c7/0x310 [ 287.981001][ T29] ? nmi_trigger_cpumask_backtrace+0x2cc/0x310 [ 287.987144][ T29] watchdog+0xfee/0xff0 [ 287.991294][ T29] ? watchdog+0x1e9/0xff0 [ 287.995618][ T29] kthread+0x2d3/0x370 [ 287.999687][ T29] ? hungtask_pm_notify+0x90/0x90 [ 288.004710][ T29] ? kthread_blkcg+0xd0/0xd0 [ 288.009286][ T29] ret_from_fork+0x48/0x80 [ 288.013688][ T29] ? kthread_blkcg+0xd0/0xd0 [ 288.018259][ T29] ret_from_fork_asm+0x11/0x20 [ 288.023014][ T29] [ 288.026181][ T29] Kernel Offset: disabled [ 288.030489][ T29] Rebooting in 86400 seconds..