Warning: Permanently added '10.128.1.36' (ECDSA) to the list of known hosts. syzkaller login: [ 849.561150][ T8434] IPVS: ftp: loaded support on port[0] = 21 [ 849.663201][ T8443] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 849.700173][ T8443] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 849.705460][ T179] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 849.716803][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 849.717291][ T179] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 849.739378][ T8151] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1003.009971][ T1644] INFO: task kworker/1:1:34 blocked for more than 143 seconds. [ 1003.018019][ T1644] Not tainted 5.11.0-rc6-syzkaller #0 [ 1003.026768][ T1644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.036806][ T1644] task:kworker/1:1 state:D stack:27064 pid: 34 ppid: 2 flags:0x00004000 [ 1003.048379][ T1644] Workqueue: events linkwatch_event [ 1003.055050][ T1644] Call Trace: [ 1003.058352][ T1644] __schedule+0x999/0xe70 [ 1003.064331][ T1644] schedule+0x14b/0x200 [ 1003.068636][ T1644] schedule_preempt_disabled+0xf/0x20 [ 1003.075733][ T1644] __mutex_lock_common+0x124f/0x2f00 [ 1003.082394][ T1644] ? linkwatch_event+0xa/0x50 [ 1003.087206][ T1644] mutex_lock_nested+0x1a/0x20 [ 1003.093790][ T1644] linkwatch_event+0xa/0x50 [ 1003.098469][ T1644] process_one_work+0x789/0xfc0 [ 1003.105024][ T1644] worker_thread+0xac1/0x1300 [ 1003.110889][ T1644] ? __kthread_parkme+0x148/0x190 [ 1003.116397][ T1644] ? rcu_lock_release+0x20/0x20 [ 1003.122753][ T1644] kthread+0x39a/0x3c0 [ 1003.128015][ T1644] ? rcu_lock_release+0x20/0x20 [ 1003.134921][ T1644] ? kthread_blkcg+0xd0/0xd0 [ 1003.141447][ T1644] ret_from_fork+0x1f/0x30 [ 1003.146224][ T1644] INFO: task kworker/0:3:8151 blocked for more than 143 seconds. [ 1003.155993][ T1644] Not tainted 5.11.0-rc6-syzkaller #0 [ 1003.164249][ T1644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.175666][ T1644] task:kworker/0:3 state:D stack:28272 pid: 8151 ppid: 2 flags:0x00004000 [ 1003.186342][ T1644] Workqueue: events disconnect_work [ 1003.193484][ T1644] Call Trace: [ 1003.196802][ T1644] __schedule+0x999/0xe70 [ 1003.203116][ T1644] schedule+0x14b/0x200 [ 1003.207454][ T1644] schedule_preempt_disabled+0xf/0x20 [ 1003.214546][ T1644] __mutex_lock_common+0x124f/0x2f00 [ 1003.221755][ T1644] ? disconnect_work+0x15/0x1e0 [ 1003.226790][ T1644] mutex_lock_nested+0x1a/0x20 [ 1003.233720][ T1644] disconnect_work+0x15/0x1e0 [ 1003.238446][ T1644] process_one_work+0x789/0xfc0 [ 1003.244823][ T1644] worker_thread+0xac1/0x1300 [ 1003.251799][ T1644] ? rcu_lock_release+0x20/0x20 [ 1003.256800][ T1644] kthread+0x39a/0x3c0 [ 1003.262538][ T1644] ? rcu_lock_release+0x20/0x20 [ 1003.267817][ T1644] ? kthread_blkcg+0xd0/0xd0 [ 1003.274463][ T1644] ret_from_fork+0x1f/0x30 [ 1003.279305][ T1644] INFO: task kworker/0:2:8467 blocked for more than 143 seconds. [ 1003.289693][ T1644] Not tainted 5.11.0-rc6-syzkaller #0 [ 1003.297076][ T1644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.308404][ T1644] task:kworker/0:2 state:D stack:29056 pid: 8467 ppid: 2 flags:0x00004000 [ 1003.319986][ T1644] Workqueue: ipv6_addrconf addrconf_dad_work [ 1003.326242][ T1644] Call Trace: [ 1003.329633][ T1644] __schedule+0x999/0xe70 [ 1003.336083][ T1644] schedule+0x14b/0x200 [ 1003.341651][ T1644] schedule_preempt_disabled+0xf/0x20 [ 1003.347558][ T1644] __mutex_lock_common+0x124f/0x2f00 [ 1003.354904][ T1644] ? addrconf_dad_work+0x61/0x1d00 [ 1003.361259][ T1644] mutex_lock_nested+0x1a/0x20 [ 1003.366404][ T1644] addrconf_dad_work+0x61/0x1d00 [ 1003.373862][ T1644] ? rcu_read_lock_sched_held+0x41/0xb0 [ 1003.381048][ T1644] process_one_work+0x789/0xfc0 [ 1003.385957][ T1644] worker_thread+0xac1/0x1300 [ 1003.392608][ T1644] ? _raw_spin_unlock_irqrestore+0x2e/0x60 [ 1003.398926][ T1644] ? __kthread_parkme+0x148/0x190 [ 1003.405714][ T1644] ? rcu_lock_release+0x20/0x20 [ 1003.411946][ T1644] kthread+0x39a/0x3c0 [ 1003.416416][ T1644] ? rcu_lock_release+0x20/0x20 [ 1003.423488][ T1644] ? kthread_blkcg+0xd0/0xd0 [ 1003.428525][ T1644] ret_from_fork+0x1f/0x30 [ 1003.436159][ T1644] INFO: task kworker/1:0:8477 blocked for more than 143 seconds. [ 1003.445304][ T1644] Not tainted 5.11.0-rc6-syzkaller #0 [ 1003.452462][ T1644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.462616][ T1644] task:kworker/1:0 state:D stack:29320 pid: 8477 ppid: 2 flags:0x00004000 [ 1003.473966][ T1644] Workqueue: ipv6_addrconf addrconf_dad_work [ 1003.481249][ T1644] Call Trace: [ 1003.484935][ T1644] __schedule+0x999/0xe70 [ 1003.491327][ T1644] schedule+0x14b/0x200 [ 1003.495789][ T1644] schedule_preempt_disabled+0xf/0x20 [ 1003.502681][ T1644] __mutex_lock_common+0x124f/0x2f00 [ 1003.508662][ T1644] ? addrconf_dad_work+0x61/0x1d00 [ 1003.515924][ T1644] mutex_lock_nested+0x1a/0x20 [ 1003.522214][ T1644] addrconf_dad_work+0x61/0x1d00 [ 1003.528156][ T1644] ? rcu_read_lock_sched_held+0x41/0xb0 [ 1003.536142][ T1644] process_one_work+0x789/0xfc0 [ 1003.542969][ T1644] worker_thread+0xac1/0x1300 [ 1003.548054][ T1644] ? _raw_spin_unlock_irqrestore+0x2e/0x60 [ 1003.556049][ T1644] ? __kthread_parkme+0x148/0x190 [ 1003.563638][ T1644] ? rcu_lock_release+0x20/0x20 [ 1003.570843][ T1644] kthread+0x39a/0x3c0 [ 1003.575477][ T1644] ? rcu_lock_release+0x20/0x20 [ 1003.582572][ T1644] ? kthread_blkcg+0xd0/0xd0 [ 1003.587516][ T1644] ret_from_fork+0x1f/0x30 [ 1003.593896][ T1644] [ 1003.593896][ T1644] Showing all locks held in the system: [ 1003.604389][ T1644] 3 locks held by kworker/1:1/34: [ 1003.611001][ T1644] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 [ 1003.624312][ T1644] #1: ffffc90000e2fd78 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 [ 1003.637097][ T1644] #2: ffffffff8d6eeb48 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 [ 1003.648411][ T1644] 1 lock held by khungtaskd/1644: [ 1003.654989][ T1644] #0: ffffffff8c711740 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 1003.666746][ T1644] 1 lock held by in:imklog/8144: [ 1003.673132][ T1644] #0: ffff888022307c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 [ 1003.684001][ T1644] 3 locks held by kworker/0:3/8151: [ 1003.689454][ T1644] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 [ 1003.703247][ T1644] #1: ffffc9000d537d78 (cfg80211_disconnect_work){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 [ 1003.715315][ T1644] #2: ffffffff8d6eeb48 (rtnl_mutex){+.+.}-{3:3}, at: disconnect_work+0x15/0x1e0 [ 1003.726269][ T1644] 3 locks held by kworker/0:2/8467: [ 1003.733519][ T1644] #0: ffff888022a4ed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 [ 1003.746143][ T1644] #1: ffffc9000162fd78 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 [ 1003.759848][ T1644] #2: ffffffff8d6eeb48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0x61/0x1d00 [ 1003.771021][ T1644] 3 locks held by kworker/1:0/8477: [ 1003.776331][ T1644] #0: ffff888022a4ed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 [ 1003.788357][ T1644] #1: ffffc900016cfd78 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 [ 1003.801530][ T1644] #2: ffffffff8d6eeb48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0x61/0x1d00 [ 1003.811710][ T1644] 3 locks held by syz-executor005/8480: [ 1003.818071][ T1644] [ 1003.820634][ T1644] ============================================= [ 1003.820634][ T1644] [ 1003.831621][ T1644] NMI backtrace for cpu 1 [ 1003.836733][ T1644] CPU: 1 PID: 1644 Comm: khungtaskd Not tainted 5.11.0-rc6-syzkaller #0 [ 1003.845636][ T1644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1003.856029][ T1644] Call Trace: [ 1003.859506][ T1644] dump_stack+0x137/0x1be [ 1003.864338][ T1644] ? nmi_cpu_backtrace+0x94/0x190 [ 1003.869646][ T1644] ? asan.module_dtor+0x20/0x20 [ 1003.874750][ T1644] nmi_cpu_backtrace+0x16c/0x190 [ 1003.879787][ T1644] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1003.886339][ T1644] nmi_trigger_cpumask_backtrace+0x191/0x2f0 [ 1003.892650][ T1644] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1003.899501][ T1644] watchdog+0xce9/0xd30 [ 1003.904467][ T1644] ? hungtask_pm_notify+0x50/0x50 [ 1003.909839][ T1644] kthread+0x39a/0x3c0 [ 1003.913931][ T1644] ? hungtask_pm_notify+0x50/0x50 [ 1003.919326][ T1644] ? kthread_blkcg+0xd0/0xd0 [ 1003.924126][ T1644] ret_from_fork+0x1f/0x30 [ 1003.928942][ T1644] Sending NMI from CPU 1 to CPUs 0: [ 1003.934808][ C0] NMI backtrace for cpu 0 [ 1003.934816][ C0] CPU: 0 PID: 4875 Comm: systemd-journal Not tainted 5.11.0-rc6-syzkaller #0 [ 1003.934821][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1003.934826][ C0] RIP: 0010:__lock_acquire+0x3fe/0x5e90 [ 1003.934831][ C0] Code: 3c 30 00 74 17 4c 89 ff e8 0f ba 5f 00 44 8b 44 24 78 48 be 00 00 00 00 00 fc ff df 48 8b 45 10 49 89 07 65 8b 05 76 87 a6 7e <31> db 85 c0 0f 95 c3 01 db 49 8d bd 6c 09 00 00 48 89 f8 48 c1 e8 [ 1003.934837][ C0] RSP: 0018:ffffc900015cf950 EFLAGS: 00000046 [ 1003.934845][ C0] RAX: 0000000000000000 RBX: ffff888012215cd8 RCX: 0000000000000000 [ 1003.934849][ C0] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff888012215cd0 [ 1003.934853][ C0] RBP: ffffc900015cfb00 R08: 000000000000002c R09: 0000000000000000 [ 1003.934857][ C0] R10: fffffbfff1b672de R11: 0000000000000000 R12: ffff888012215340 [ 1003.934861][ C0] R13: ffff888012215340 R14: 0000000000000002 R15: ffff888012215ce0 [ 1003.934865][ C0] FS: 00007f5496d428c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 1003.934869][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1003.934873][ C0] CR2: 00007f549411a000 CR3: 0000000012f61000 CR4: 00000000001506f0 [ 1003.934877][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1003.934881][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1003.934884][ C0] Call Trace: [ 1003.934886][ C0] lock_acquire+0x114/0x5e0 [ 1003.934889][ C0] ? rcu_lock_acquire+0x5/0x30 [ 1003.934892][ C0] rcu_lock_acquire+0x2a/0x30 [ 1003.934894][ C0] ? rcu_lock_acquire+0x5/0x30 [ 1003.934897][ C0] __d_lookup+0x89/0x750 [ 1003.934899][ C0] lookup_fast+0x99/0x6f0 [ 1003.934902][ C0] walk_component+0x72/0x6b0 [ 1003.934905][ C0] path_lookupat+0x19d/0x970 [ 1003.934907][ C0] filename_lookup+0x1b0/0x5e0 [ 1003.934910][ C0] ? getname_flags+0x1fe/0x640 [ 1003.934913][ C0] do_faccessat+0x396/0x870 [ 1003.934915][ C0] do_syscall_64+0x2d/0x70 [ 1003.934918][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1003.934921][ C0] RIP: 0033:0x7f5495ffd9c7 [ 1003.934926][ C0] Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48 [ 1003.934933][ C0] RSP: 002b:00007fff71491438 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 1003.934940][ C0] RAX: ffffffffffffffda RBX: 00007fff71494350 RCX: 00007f5495ffd9c7 [ 1003.934943][ C0] RDX: 00007f5496a6ea00 RSI: 0000000000000000 RDI: 000055d233d109a3 [ 1003.934947][ C0] RBP: 00007fff71491470 R08: 0000000000000000 R09: 0000000000000000 [ 1003.934951][ C0] R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 [ 1003.934955][ C0] R13: 0000000000000000 R14: 00007fff71494350 R15: 00007fff71491960 [ 1003.935856][ T1644] Kernel panic - not syncing: hung_task: blocked tasks [ 1004.227217][ T1644] CPU: 1 PID: 1644 Comm: khungtaskd Not tainted 5.11.0-rc6-syzkaller #0 [ 1004.235994][ T1644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1004.246293][ T1644] Call Trace: [ 1004.249679][ T1644] dump_stack+0x137/0x1be [ 1004.254302][ T1644] ? panic+0x1f3/0x800 [ 1004.258575][ T1644] panic+0x291/0x800 [ 1004.262717][ T1644] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 1004.269004][ T1644] ? nmi_trigger_cpumask_backtrace+0x29b/0x2f0 [ 1004.275851][ T1644] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 1004.282343][ T1644] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2f0 [ 1004.288880][ T1644] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1004.295085][ T1644] watchdog+0xd29/0xd30 [ 1004.299387][ T1644] ? hungtask_pm_notify+0x50/0x50 [ 1004.304700][ T1644] kthread+0x39a/0x3c0 [ 1004.308967][ T1644] ? hungtask_pm_notify+0x50/0x50 [ 1004.314451][ T1644] ? kthread_blkcg+0xd0/0xd0 [ 1004.319253][ T1644] ret_from_fork+0x1f/0x30 [ 1004.325866][ T1644] Kernel Offset: disabled [ 1004.331004][ T1644] Rebooting in 86400 seconds..