./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor604146414 <...> Warning: Permanently added '10.128.0.245' (ED25519) to the list of known hosts. execve("./syz-executor604146414", ["./syz-executor604146414"], 0x7ffdd0c47070 /* 10 vars */) = 0 brk(NULL) = 0x555556b6d000 brk(0x555556b6dd00) = 0x555556b6dd00 arch_prctl(ARCH_SET_FS, 0x555556b6d380) = 0 set_tid_address(0x555556b6d650) = 5052 set_robust_list(0x555556b6d660, 24) = 0 rseq(0x555556b6dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor604146414", 4096) = 27 getrandom("\x8b\x84\x88\x94\xa1\x43\xc6\xec", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556b6dd00 brk(0x555556b8ed00) = 0x555556b8ed00 brk(0x555556b8f000) = 0x555556b8f000 mprotect(0x7f649133c000, 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 5053 attached , child_tidptr=0x555556b6d650) = 5053 [pid 5053] set_robust_list(0x555556b6d660, 24) = 0 [pid 5053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5053] setpgid(0, 0) = 0 [pid 5053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5053] write(3, "1000", 4) = 4 [pid 5053] close(3) = 0 [pid 5053] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 5053] socket(AF_INET, SOCK_SEQPACKET, IPPROTO_IP) = 4 [pid 5053] ioctl(3, NBD_SET_SOCK, 4) = 0 [pid 5053] listen(4, 7757) = 0 [pid 5053] ioctl(3, NBD_DO_IT [pid 5052] kill(-5053, SIGKILL) = 0 [pid 5052] kill(5053, SIGKILL) = 0 [ 53.808468][ T5053] block nbd0: shutting down sockets [pid 5052] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, 0x555556b6e6f0 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(3, 0x555556b6e6f0 /* 0 entries */, 32768) = 0 [pid 5052] close(3) = 0 [ 76.170695][ T779] cfg80211: failed to load regulatory.db [ 286.090212][ T29] INFO: task syz-executor604:5053 blocked for more than 143 seconds. [ 286.098281][ T29] Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 286.105482][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.114201][ T29] task:syz-executor604 state:D stack:28040 pid:5053 tgid:5053 ppid:5052 flags:0x00004006 [ 286.124403][ T29] Call Trace: [ 286.127680][ T29] [ 286.130618][ T29] __schedule+0xf12/0x5c00 [ 286.135069][ T29] ? __schedule+0xf1a/0x5c00 [ 286.139645][ T29] ? io_schedule_timeout+0x150/0x150 [ 286.144947][ T29] ? lock_release+0x4bf/0x690 [ 286.149641][ T29] ? schedule+0x1fc/0x270 [ 286.153979][ T29] ? reacquire_held_locks+0x4c0/0x4c0 [ 286.159366][ T29] ? lock_release+0x4bf/0x690 [ 286.164062][ T29] ? reacquire_held_locks+0x4c0/0x4c0 [ 286.169454][ T29] ? reacquire_held_locks+0x4c0/0x4c0 [ 286.174839][ T29] schedule+0xe9/0x270 [ 286.178911][ T29] schedule_timeout+0x257/0x290 [ 286.183785][ T29] ? usleep_range_state+0x1a0/0x1a0 [ 286.188996][ T29] ? lock_release+0x4bf/0x690 [ 286.193686][ T29] ? rcu_is_watching+0x12/0xb0 [ 286.198458][ T29] __wait_for_common+0x3e0/0x5f0 [ 286.203434][ T29] ? usleep_range_state+0x1a0/0x1a0 [ 286.208636][ T29] ? out_of_line_wait_on_bit_timeout+0x170/0x170 [ 286.214973][ T29] ? flush_workqueue_prep_pwqs+0x28f/0x4f0 [ 286.220830][ T29] ? check_flush_dependency+0x86/0x460 [ 286.226300][ T29] __flush_workqueue+0x3e0/0x1340 [ 286.231357][ T29] ? blk_mq_run_hw_queue+0x2b1/0x9a0 [ 286.236656][ T29] ? apply_wqattrs_cleanup.part.0+0x2b0/0x2b0 [ 286.242763][ T29] ? blk_mq_run_hw_queues+0x1fb/0x290 [ 286.248142][ T29] ? nbd_ioctl+0x308/0xd60 [ 286.252569][ T29] nbd_ioctl+0x308/0xd60 [ 286.256820][ T29] ? nbd_start_device+0xe00/0xe00 [ 286.261858][ T29] ? prepare_to_swait_exclusive+0x240/0x240 [ 286.267769][ T29] ? rcu_is_watching+0x12/0xb0 [ 286.272539][ T29] ? lock_release+0x4bf/0x690 [ 286.277225][ T29] ? nbd_start_device+0xe00/0xe00 [ 286.282261][ T29] blkdev_ioctl+0x2f3/0x760 [ 286.286775][ T29] ? blkdev_common_ioctl+0x1cc0/0x1cc0 [ 286.292240][ T29] ? bpf_lsm_file_ioctl+0x9/0x10 [ 286.297187][ T29] ? blkdev_common_ioctl+0x1cc0/0x1cc0 [ 286.302665][ T29] __x64_sys_ioctl+0x18f/0x210 [ 286.307437][ T29] do_syscall_64+0xd3/0x250 [ 286.311944][ T29] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 286.317845][ T29] RIP: 0033:0x7f64912c9879 [ 286.322270][ T29] RSP: 002b:00007fffb25b1af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 286.330710][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f64912c9879 [ 286.338666][ T29] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 286.346642][ T29] RBP: 00007f649133c5f0 R08: 0000000000000006 R09: 0000000000000006 [ 286.354631][ T29] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001 [ 286.362632][ T29] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 286.370628][ T29] [ 286.373649][ T29] INFO: lockdep is turned off. [ 286.378399][ T29] NMI backtrace for cpu 1 [ 286.382716][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 286.392142][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 286.402169][ T29] Call Trace: [ 286.405423][ T29] [ 286.408327][ T29] dump_stack_lvl+0xd9/0x1b0 [ 286.412900][ T29] nmi_cpu_backtrace+0x277/0x390 [ 286.417815][ T29] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 286.422990][ T29] nmi_trigger_cpumask_backtrace+0x299/0x300 [ 286.428947][ T29] watchdog+0xf87/0x1210 [ 286.433166][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 286.439123][ T29] ? __kthread_parkme+0x14b/0x220 [ 286.444121][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 286.450077][ T29] kthread+0x2c6/0x3a0 [ 286.454121][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 286.459726][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 286.465333][ T29] ret_from_fork+0x45/0x80 [ 286.469723][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 286.475328][ T29] ret_from_fork_asm+0x11/0x20 [ 286.480091][ T29] [ 286.483161][ T29] Sending NMI from CPU 1 to CPUs 0: [ 286.488373][ C0] NMI backtrace for cpu 0 [ 286.488381][ C0] CPU: 0 PID: 61 Comm: kworker/u4:4 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 286.488394][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 286.488401][ C0] Workqueue: events_unbound toggle_allocation_gate [ 286.488421][ C0] RIP: 0010:text_poke_loc_init+0x30/0x5e0 [ 286.488436][ C0] Code: c6 41 55 49 bd 00 00 00 00 00 fc ff df 41 54 49 89 d4 55 48 89 cd 53 48 89 fb 48 81 ec f8 00 00 00 48 8d 44 24 18 48 89 34 24 <48> c7 44 24 18 b3 8a b5 41 48 c1 e8 03 48 89 44 24 08 4c 01 e8 48 [ 286.488447][ C0] RSP: 0018:ffffc900015c7a20 EFLAGS: 00000282 [ 286.488456][ C0] RAX: ffffc900015c7a38 RBX: ffffffff90d613b0 RCX: 0000000000000005 [ 286.488464][ C0] RDX: ffffffff8ac67d6a RSI: ffffffff81d5c8df RDI: ffffffff90d613b0 [ 286.488471][ C0] RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffff81d5c505 [ 286.488478][ C0] R10: ffffffff81d5c8df R11: 0000000000000000 R12: ffffffff8ac67d6a [ 286.488485][ C0] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8cb07240 [ 286.488496][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 286.488508][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.488515][ C0] CR2: 00005632a233b680 CR3: 000000000cf79000 CR4: 0000000000350ef0 [ 286.488523][ C0] Call Trace: [ 286.488527][ C0] [ 286.488531][ C0] ? show_regs+0x8f/0xa0 [ 286.488546][ C0] ? nmi_cpu_backtrace+0x1d4/0x390 [ 286.488566][ C0] ? nmi_cpu_backtrace_handler+0xc/0x10 [ 286.488590][ C0] ? nmi_handle+0x1a6/0x570 [ 286.488609][ C0] ? x86_pmu_event_mapped+0x1c0/0x1c0 [ 286.488629][ C0] ? text_poke_loc_init+0x30/0x5e0 [ 286.488644][ C0] ? default_do_nmi+0x6a/0x160 [ 286.488659][ C0] ? exc_nmi+0x186/0x200 [ 286.488671][ C0] ? end_repeat_nmi+0xf/0x2a [ 286.488691][ C0] ? kmem_cache_alloc+0x9f/0x320 [ 286.488707][ C0] ? __kmalloc+0x105/0x440 [ 286.488723][ C0] ? kmem_cache_alloc+0x9f/0x320 [ 286.488739][ C0] ? text_poke_loc_init+0x30/0x5e0 [ 286.488751][ C0] ? text_poke_loc_init+0x30/0x5e0 [ 286.488763][ C0] ? text_poke_loc_init+0x30/0x5e0 [ 286.488776][ C0] [ 286.488779][ C0] [ 286.488782][ C0] ? kmem_cache_alloc+0x9f/0x320 [ 286.488799][ C0] ? kmem_cache_alloc+0x9f/0x320 [ 286.488814][ C0] ? kmem_cache_alloc+0xae/0x320 [ 286.488830][ C0] ? kmem_cache_alloc+0xa4/0x320 [ 286.488846][ C0] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 286.488863][ C0] ? kmem_cache_alloc+0x9f/0x320 [ 286.488878][ C0] ? __jump_label_patch+0x1db/0x400 [ 286.488899][ C0] ? text_poke_queue+0xef/0x180 [ 286.488916][ C0] arch_jump_label_transform_queue+0xaf/0x110 [ 286.488939][ C0] __jump_label_update+0x125/0x420 [ 286.488959][ C0] jump_label_update+0x1d7/0x400 [ 286.488976][ C0] static_key_disable_cpuslocked+0x154/0x1c0 [ 286.488994][ C0] static_key_disable+0x1a/0x20 [ 286.489011][ C0] toggle_allocation_gate+0x13f/0x250 [ 286.489027][ C0] ? wake_up_kfence_timer+0x30/0x30 [ 286.489043][ C0] ? spin_bug+0x1d0/0x1d0 [ 286.489057][ C0] process_one_work+0x886/0x15d0 [ 286.489077][ C0] ? lock_sync+0x190/0x190 [ 286.489086][ C0] ? workqueue_congested+0x300/0x300 [ 286.489105][ C0] ? assign_work+0x1a0/0x250 [ 286.489121][ C0] worker_thread+0x8b9/0x1290 [ 286.489140][ C0] ? process_one_work+0x15d0/0x15d0 [ 286.489156][ C0] kthread+0x2c6/0x3a0 [ 286.489170][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 286.489185][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 286.489200][ C0] ret_from_fork+0x45/0x80 [ 286.489214][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 286.489229][ C0] ret_from_fork_asm+0x11/0x20 [ 286.489249][ C0] [ 286.489370][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 286.849232][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 286.858671][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 286.868716][ T29] Call Trace: [ 286.871981][ T29] [ 286.874897][ T29] dump_stack_lvl+0xd9/0x1b0 [ 286.879485][ T29] panic+0x6dc/0x790 [ 286.883370][ T29] ? panic_smp_self_stop+0xa0/0xa0 [ 286.888469][ T29] ? __irq_work_queue_local+0x132/0x400 [ 286.894008][ T29] ? irq_work_queue+0x2a/0x70 [ 286.898694][ T29] ? watchdog+0xd3e/0x1210 [ 286.903111][ T29] ? watchdog+0xd31/0x1210 [ 286.907516][ T29] watchdog+0xd4f/0x1210 [ 286.911751][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 286.917719][ T29] ? __kthread_parkme+0x14b/0x220 [ 286.922729][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 286.928692][ T29] kthread+0x2c6/0x3a0 [ 286.932746][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 286.938363][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 286.943981][ T29] ret_from_fork+0x45/0x80 [ 286.948383][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 286.953998][ T29] ret_from_fork_asm+0x11/0x20 [ 286.958751][ T29] [ 286.961952][ T29] Kernel Offset: disabled [ 286.966247][ T29] Rebooting in 86400 seconds..