forked to background, child pid 3179 no interfaces have a carrier [ 20.923721][ T3180] 8021q: adding VLAN 0 to HW filter on device bond0 [ 20.933096][ T3180] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 70.685190][ T920] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.80' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 715.802259][ T27] INFO: task syz-executor397:6534 blocked for more than 143 seconds. [ 715.810495][ T27] Not tainted 5.16.0-syzkaller #0 [ 715.817138][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 715.826354][ T27] task:syz-executor397 state:D stack:28112 pid: 6534 ppid: 3637 flags:0x00004002 [ 715.835833][ T27] Call Trace: [ 715.839108][ T27] [ 715.842327][ T27] __schedule+0xab2/0x4f00 [ 715.846793][ T27] ? io_schedule_timeout+0x180/0x180 [ 715.852400][ T27] schedule+0xd2/0x260 [ 715.856480][ T27] schedule_preempt_disabled+0xf/0x20 [ 715.862310][ T27] __mutex_lock+0xa32/0x12f0 [ 715.866911][ T27] ? vhost_net_stop+0x142/0x270 [ 715.871768][ T27] ? mutex_lock_io_nested+0x1150/0x1150 [ 715.877871][ T27] ? vhost_net_buf_unproduce+0x16/0x560 [ 715.883687][ T27] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 715.889683][ T27] vhost_net_stop+0x142/0x270 [ 715.894805][ T27] vhost_net_release+0x9c/0x2d0 [ 715.899671][ T27] ? vhost_net_stop+0x270/0x270 [ 715.904907][ T27] ? fcntl_setlk+0xd00/0xd00 [ 715.909511][ T27] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 715.916055][ T27] ? ima_file_free+0xb6/0x420 [ 715.920749][ T27] __fput+0x286/0x9f0 [ 715.925272][ T27] ? vhost_net_stop+0x270/0x270 [ 715.930140][ T27] task_work_run+0xdd/0x1a0 [ 715.935259][ T27] do_exit+0xb29/0x2a30 [ 715.939426][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 715.944589][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 715.949451][ T27] ? mm_update_next_owner+0x7a0/0x7a0 [ 715.956072][ T27] do_group_exit+0xd2/0x2f0 [ 715.960588][ T27] __x64_sys_exit_group+0x3a/0x50 [ 715.965938][ T27] do_syscall_64+0x35/0xb0 [ 715.970363][ T27] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 715.976564][ T27] RIP: 0033:0x7fcf820a5b39 [ 715.980980][ T27] RSP: 002b:00007ffe5f066dd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 715.989762][ T27] RAX: ffffffffffffffda RBX: 00007fcf8211a330 RCX: 00007fcf820a5b39 [ 715.997954][ T27] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 716.006217][ T27] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 00007ffe5f066fc8 [ 716.014390][ T27] R10: 00007ffe5f066fc8 R11: 0000000000000246 R12: 00007fcf8211a330 [ 716.022649][ T27] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 716.030636][ T27] [ 716.034005][ T27] [ 716.034005][ T27] Showing all locks held in the system: [ 716.041736][ T27] 1 lock held by khungtaskd/27: [ 716.047180][ T27] #0: ffffffff8bb85320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 716.057693][ T27] 2 locks held by getty/3287: [ 716.062596][ T27] #0: ffff888023d6d098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 [ 716.072649][ T27] #1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 [ 716.083081][ T27] 1 lock held by syz-executor397/6534: [ 716.088535][ T27] #0: ffff8880772a0218 (&vq->mutex){+.+.}-{3:3}, at: vhost_net_stop+0x142/0x270 [ 716.097997][ T27] 1 lock held by vhost-6534/6535: [ 716.103232][ T27] [ 716.105564][ T27] ============================================= [ 716.105564][ T27] [ 716.114326][ T27] NMI backtrace for cpu 0 [ 716.118646][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-syzkaller #0 [ 716.126445][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.136621][ T27] Call Trace: [ 716.139924][ T27] [ 716.142864][ T27] dump_stack_lvl+0xcd/0x134 [ 716.147466][ T27] nmi_cpu_backtrace.cold+0x47/0x144 [ 716.152757][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 716.157970][ T27] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 716.163960][ T27] watchdog+0xc1d/0xf50 [ 716.168294][ T27] ? reset_hung_task_detector+0x30/0x30 [ 716.173840][ T27] kthread+0x2e9/0x3a0 [ 716.177945][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 716.183762][ T27] ret_from_fork+0x1f/0x30 [ 716.188198][ T27] [ 716.191356][ T27] Sending NMI from CPU 0 to CPUs 1: [ 716.196589][ C1] NMI backtrace for cpu 1 [ 716.196602][ C1] CPU: 1 PID: 6535 Comm: vhost-6534 Not tainted 5.16.0-syzkaller #0 [ 716.196619][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.196628][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x60 [ 716.196658][ C1] Code: 81 e1 00 01 00 00 65 48 8b 14 25 00 70 02 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 a4 15 00 00 85 c0 74 2b 8b 82 80 15 00 00 <83> f8 02 75 20 48 8b 8a 88 15 00 00 8b 92 84 15 00 00 48 8b 01 48 [ 716.196672][ C1] RSP: 0018:ffffc9000349faf0 EFLAGS: 00000246 [ 716.196688][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 716.196698][ C1] RDX: ffff888075a09d00 RSI: ffffffff86d68eb7 RDI: 0000000000000003 [ 716.196708][ C1] RBP: dffffc0000000000 R08: 000000000000000f R09: ffffc9000349fb27 [ 716.196718][ C1] R10: ffffffff86d68ea9 R11: 0000000000000001 R12: ffff88801d905c00 [ 716.196728][ C1] R13: 000000000000000f R14: 0000000000000000 R15: 0000000000000000 [ 716.196741][ C1] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 716.196755][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.196765][ C1] CR2: 000055c7fbe99f10 CR3: 0000000074ff4000 CR4: 0000000000350ee0 [ 716.196775][ C1] Call Trace: [ 716.196780][ C1] [ 716.196784][ C1] vhost_iotlb_itree_first+0x177/0x280 [ 716.196808][ C1] iotlb_access_ok+0x1ce/0x3e0 [ 716.196826][ C1] vq_meta_prefetch+0xbc/0x280 [ 716.196842][ C1] handle_rx+0x145/0x1b40 [ 716.196861][ C1] ? __lock_acquire+0x1655/0x5470 [ 716.196883][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 716.196901][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 716.196920][ C1] ? vhost_net_ioctl+0x1740/0x1740 [ 716.196939][ C1] ? find_held_lock+0x2d/0x110 [ 716.196955][ C1] ? kcov_remote_start+0x277/0x770 [ 716.196973][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 716.196989][ C1] ? do_raw_spin_lock+0x120/0x2b0 [ 716.197010][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 716.197032][ C1] vhost_worker+0x23d/0x3d0 [ 716.197047][ C1] ? vhost_dev_reset_owner+0x160/0x160 [ 716.197064][ C1] kthread+0x2e9/0x3a0 [ 716.197080][ C1] ? kthread_complete_and_exit+0x40/0x40 [ 716.197100][ C1] ret_from_fork+0x1f/0x30 [ 716.197121][ C1] [ 716.415665][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 716.422522][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-syzkaller #0 [ 716.430415][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.440478][ T27] Call Trace: [ 716.443760][ T27] [ 716.446683][ T27] dump_stack_lvl+0xcd/0x134 [ 716.451279][ T27] panic+0x2b0/0x6dd [ 716.455175][ T27] ? __warn_printk+0xf3/0xf3 [ 716.459768][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 716.464968][ T27] ? preempt_schedule_thunk+0x16/0x18 [ 716.470339][ T27] ? nmi_trigger_cpumask_backtrace+0x196/0x230 [ 716.476496][ T27] ? watchdog.cold+0x130/0x158 [ 716.481263][ T27] watchdog.cold+0x141/0x158 [ 716.485855][ T27] ? reset_hung_task_detector+0x30/0x30 [ 716.491409][ T27] kthread+0x2e9/0x3a0 [ 716.495477][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 716.501117][ T27] ret_from_fork+0x1f/0x30 [ 716.505545][ T27] [ 716.509655][ T27] Kernel Offset: disabled [ 716.514154][ T27] Rebooting in 86400 seconds..