Warning: Permanently added '10.128.0.61' (ECDSA) to the list of known hosts. syzkaller login: [ 483.637956][ T8412] IPVS: ftp: loaded support on port[0] = 21 [ 483.733229][ T8423] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 483.750430][ T8423] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 483.779300][ T3173] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 483.798597][ T8423] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 483.816787][ T8423] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 483.825788][ T3173] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 721.422901][ T1642] INFO: task kworker/1:0:20 blocked for more than 143 seconds. [ 721.430697][ T1642] Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 721.439822][ T1642] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.449461][ T1642] task:kworker/1:0 state:D stack:27528 pid: 20 ppid: 2 flags:0x00004000 [ 721.461014][ T1642] Workqueue: events linkwatch_event [ 721.467537][ T1642] Call Trace: [ 721.470887][ T1642] __schedule+0x911/0x2160 [ 721.476902][ T1642] ? io_schedule_timeout+0x140/0x140 [ 721.482218][ T1642] ? _raw_spin_unlock_irq+0x1f/0x40 [ 721.488869][ T1642] ? lockdep_hardirqs_on+0x79/0x100 [ 721.495014][ T1642] schedule+0xcf/0x270 [ 721.499108][ T1642] schedule_preempt_disabled+0xf/0x20 [ 721.505933][ T1642] __mutex_lock+0x81f/0x1120 [ 721.510644][ T1642] ? linkwatch_event+0xb/0x60 [ 721.516722][ T1642] ? mutex_lock_io_nested+0xf70/0xf70 [ 721.522124][ T1642] ? lock_release+0x720/0x720 [ 721.528281][ T1642] linkwatch_event+0xb/0x60 [ 721.533658][ T1642] process_one_work+0x98d/0x1600 [ 721.538920][ T1642] ? pwq_dec_nr_in_flight+0x320/0x320 [ 721.545692][ T1642] ? rwlock_bug.part.0+0x90/0x90 [ 721.550666][ T1642] ? _raw_spin_lock_irq+0x41/0x50 [ 721.556981][ T1642] worker_thread+0x64c/0x1120 [ 721.561696][ T1642] ? process_one_work+0x1600/0x1600 [ 721.568250][ T1642] kthread+0x3b1/0x4a0 [ 721.572348][ T1642] ? __kthread_bind_mask+0xc0/0xc0 [ 721.578740][ T1642] ret_from_fork+0x1f/0x30 [ 721.585582][ T1642] INFO: task kworker/0:4:3173 blocked for more than 143 seconds. [ 721.594337][ T1642] Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 721.601454][ T1642] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.612566][ T1642] task:kworker/0:4 state:D stack:27608 pid: 3173 ppid: 2 flags:0x00004000 [ 721.623267][ T1642] Workqueue: events disconnect_work [ 721.628568][ T1642] Call Trace: [ 721.631853][ T1642] __schedule+0x911/0x2160 [ 721.638190][ T1642] ? io_schedule_timeout+0x140/0x140 [ 721.644520][ T1642] ? _raw_spin_unlock_irq+0x1f/0x40 [ 721.649750][ T1642] ? lockdep_hardirqs_on+0x79/0x100 [ 721.656236][ T1642] schedule+0xcf/0x270 [ 721.660331][ T1642] schedule_preempt_disabled+0xf/0x20 [ 721.667170][ T1642] __mutex_lock+0x81f/0x1120 [ 721.671880][ T1642] ? disconnect_work+0x18/0x200 [ 721.678015][ T1642] ? mutex_lock_io_nested+0xf70/0xf70 [ 721.684254][ T1642] ? lock_downgrade+0x6e0/0x6e0 [ 721.689140][ T1642] disconnect_work+0x18/0x200 [ 721.695313][ T1642] process_one_work+0x98d/0x1600 [ 721.700293][ T1642] ? pwq_dec_nr_in_flight+0x320/0x320 [ 721.706991][ T1642] ? rwlock_bug.part.0+0x90/0x90 [ 721.711960][ T1642] ? _raw_spin_lock_irq+0x41/0x50 [ 721.719727][ T1642] worker_thread+0x64c/0x1120 [ 721.725455][ T1642] ? __kthread_parkme+0x13f/0x1e0 [ 721.730522][ T1642] ? process_one_work+0x1600/0x1600 [ 721.737314][ T1642] kthread+0x3b1/0x4a0 [ 721.741591][ T1642] ? __kthread_bind_mask+0xc0/0xc0 [ 721.748067][ T1642] ret_from_fork+0x1f/0x30 [ 721.752635][ T1642] INFO: task kworker/1:2:8434 blocked for more than 143 seconds. [ 721.761587][ T1642] Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 721.769886][ T1642] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.779447][ T1642] task:kworker/1:2 state:D stack:29112 pid: 8434 ppid: 2 flags:0x00004000 [ 721.789669][ T1642] Workqueue: ipv6_addrconf addrconf_verify_work [ 721.796961][ T1642] Call Trace: [ 721.800260][ T1642] __schedule+0x911/0x2160 [ 721.805917][ T1642] ? io_schedule_timeout+0x140/0x140 [ 721.811228][ T1642] ? _raw_spin_unlock_irq+0x1f/0x40 [ 721.817693][ T1642] ? lockdep_hardirqs_on+0x79/0x100 [ 721.823732][ T1642] schedule+0xcf/0x270 [ 721.827830][ T1642] schedule_preempt_disabled+0xf/0x20 [ 721.834529][ T1642] __mutex_lock+0x81f/0x1120 [ 721.839146][ T1642] ? addrconf_verify_work+0xa/0x20 [ 721.847759][ T1642] ? mutex_lock_io_nested+0xf70/0xf70 [ 721.854184][ T1642] ? lock_release+0x720/0x720 [ 721.858885][ T1642] ? lock_downgrade+0x6e0/0x6e0 [ 721.865200][ T1642] addrconf_verify_work+0xa/0x20 [ 721.870162][ T1642] process_one_work+0x98d/0x1600 [ 721.876367][ T1642] ? pwq_dec_nr_in_flight+0x320/0x320 [ 721.881856][ T1642] ? rwlock_bug.part.0+0x90/0x90 [ 721.888055][ T1642] ? _raw_spin_lock_irq+0x41/0x50 [ 721.893939][ T1642] worker_thread+0x64c/0x1120 [ 721.898652][ T1642] ? __kthread_parkme+0x13f/0x1e0 [ 721.904995][ T1642] ? process_one_work+0x1600/0x1600 [ 721.910309][ T1642] kthread+0x3b1/0x4a0 [ 721.915673][ T1642] ? __kthread_bind_mask+0xc0/0xc0 [ 721.920815][ T1642] ret_from_fork+0x1f/0x30 [ 721.926642][ T1642] INFO: task syz-executor144:8456 can't die for more than 143 seconds. [ 721.935832][ T1642] task:syz-executor144 state:R running task stack:26464 pid: 8456 ppid: 8412 flags:0x00004006 [ 721.947708][ T1642] Call Trace: [ 721.951014][ T1642] ? __schedule+0x919/0x2160 [ 721.957086][ T1642] ? mark_held_locks+0x9f/0xe0 [ 721.961893][ T1642] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 721.969594][ T1642] ? lockdep_hardirqs_on+0x79/0x100 [ 721.977175][ T1642] ? asm_sysvec_call_function_single+0x12/0x20 [ 721.984414][ T1642] ? ieee80211_chanctx_radar_detect+0x26a/0x420 [ 721.990779][ T1642] ? ieee80211_chanctx_radar_detect+0x23d/0x420 [ 721.998604][ T1642] ? ieee80211_chanctx_radar_detect+0x2c9/0x420 [ 722.005736][ T1642] ? __sanitizer_cov_trace_pc+0x37/0x60 [ 722.011392][ T1642] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 722.018938][ T1642] ? ieee80211_chanctx_radar_detect+0x23d/0x420 [ 722.026064][ T1642] ? ieee80211_check_combinations+0x3b9/0x890 [ 722.032230][ T1642] ? ieee80211_recalc_dtim+0x240/0x240 [ 722.039005][ T1642] ? ieee80211_check_concurrent_iface+0x454/0x620 [ 722.046496][ T1642] ? ieee80211_if_change_type+0x288/0x6e0 [ 722.052422][ T1642] ? ieee80211_change_iface+0x26/0x210 [ 722.059357][ T1642] ? cfg80211_change_iface+0x335/0xf30 [ 722.065762][ T1642] ? nl80211_set_interface+0x65c/0x8d0 [ 722.071269][ T1642] ? nl80211_notify_iface+0x180/0x180 [ 722.078128][ T1642] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 722.085780][ T1642] ? nl80211_pre_doit+0xa6/0x620 [ 722.090754][ T1642] ? genl_family_rcv_msg_doit+0x228/0x320 [ 722.098026][ T1642] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 722.107735][ T1642] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.115109][ T1642] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.121381][ T1642] ? ns_capable+0xde/0x100 [ 722.127411][ T1642] ? genl_rcv_msg+0x328/0x580 [ 722.132141][ T1642] ? genl_get_cmd+0x480/0x480 [ 722.138259][ T1642] ? nl80211_notify_iface+0x180/0x180 [ 722.144534][ T1642] ? lock_release+0x720/0x720 [ 722.149247][ T1642] ? netlink_rcv_skb+0x153/0x420 [ 722.155631][ T1642] ? genl_get_cmd+0x480/0x480 [ 722.160335][ T1642] ? netlink_ack+0xaa0/0xaa0 [ 722.166185][ T1642] ? genl_rcv+0x24/0x40 [ 722.170358][ T1642] ? netlink_unicast+0x533/0x7d0 [ 722.176602][ T1642] ? netlink_attachskb+0x870/0x870 [ 722.181734][ T1642] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.189329][ T1642] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.196456][ T1642] ? __phys_addr_symbol+0x2c/0x70 [ 722.201579][ T1642] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 722.208574][ T1642] ? __check_object_size+0x171/0x3f0 [ 722.214782][ T1642] ? netlink_sendmsg+0x856/0xd90 [ 722.219750][ T1642] ? netlink_unicast+0x7d0/0x7d0 [ 722.226179][ T1642] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.232456][ T1642] ? netlink_unicast+0x7d0/0x7d0 [ 722.240143][ T1642] ? sock_sendmsg+0xcf/0x120 [ 722.245832][ T1642] ? ____sys_sendmsg+0x6e8/0x810 [ 722.250801][ T1642] ? kernel_sendmsg+0x50/0x50 [ 722.257164][ T1642] ? do_recvmmsg+0x6d0/0x6d0 [ 722.261790][ T1642] ? fs_reclaim_release+0x9c/0xf0 [ 722.268205][ T1642] ? lock_chain_count+0x20/0x20 [ 722.273909][ T1642] ? ___sys_sendmsg+0xf3/0x170 [ 722.278697][ T1642] ? sendmsg_copy_msghdr+0x160/0x160 [ 722.285216][ T1642] ? __lock_acquire+0x16a7/0x5230 [ 722.290281][ T1642] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.297546][ T1642] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.304773][ T1642] ? __fget_light+0x215/0x280 [ 722.309560][ T1642] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.317651][ T1642] ? __sys_sendmsg+0xe5/0x1b0 [ 722.322362][ T1642] ? __sys_sendmsg_sock+0x30/0x30 [ 722.328738][ T1642] ? __context_tracking_enter+0xef/0x100 [ 722.335332][ T1642] ? syscall_enter_from_user_mode+0x27/0x70 [ 722.341259][ T1642] ? do_syscall_64+0x2d/0x70 [ 722.347105][ T1642] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 722.354053][ T1642] INFO: task kworker/0:1:8457 blocked for more than 144 seconds. [ 722.362003][ T1642] Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 722.372808][ T1642] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 722.381501][ T1642] task:kworker/0:1 state:D stack:29264 pid: 8457 ppid: 2 flags:0x00004000 [ 722.392438][ T1642] Workqueue: ipv6_addrconf addrconf_dad_work [ 722.399323][ T1642] Call Trace: [ 722.402955][ T1642] __schedule+0x911/0x2160 [ 722.407409][ T1642] ? io_schedule_timeout+0x140/0x140 [ 722.413132][ T1642] ? _raw_spin_unlock_irq+0x1f/0x40 [ 722.418360][ T1642] ? lockdep_hardirqs_on+0x79/0x100 [ 722.424013][ T1642] schedule+0xcf/0x270 [ 722.428107][ T1642] schedule_preempt_disabled+0xf/0x20 [ 722.433910][ T1642] __mutex_lock+0x81f/0x1120 [ 722.438536][ T1642] ? addrconf_dad_work+0xa3/0x12b0 [ 722.444132][ T1642] ? mutex_lock_io_nested+0xf70/0xf70 [ 722.449532][ T1642] ? debug_object_deactivate+0x264/0x300 [ 722.455666][ T1642] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.461874][ T1642] addrconf_dad_work+0xa3/0x12b0 [ 722.467280][ T1642] ? addrconf_dad_completed+0xce0/0xce0 [ 722.473427][ T1642] process_one_work+0x98d/0x1600 [ 722.478395][ T1642] ? pwq_dec_nr_in_flight+0x320/0x320 [ 722.484199][ T1642] ? rwlock_bug.part.0+0x90/0x90 [ 722.489168][ T1642] ? _raw_spin_lock_irq+0x41/0x50 [ 722.495105][ T1642] worker_thread+0x64c/0x1120 [ 722.499822][ T1642] ? __kthread_parkme+0x13f/0x1e0 [ 722.506433][ T1642] ? process_one_work+0x1600/0x1600 [ 722.511692][ T1642] kthread+0x3b1/0x4a0 [ 722.516186][ T1642] ? __kthread_bind_mask+0xc0/0xc0 [ 722.521330][ T1642] ret_from_fork+0x1f/0x30 [ 722.526293][ T1642] [ 722.526293][ T1642] Showing all locks held in the system: [ 722.534932][ T1642] 3 locks held by kworker/1:0/20: [ 722.539975][ T1642] #0: ffff888010864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 [ 722.552012][ T1642] #1: ffffc90000da7da8 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 [ 722.563029][ T1642] #2: ffffffff8d688de8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xb/0x60 [ 722.572586][ T1642] 1 lock held by khungtaskd/1642: [ 722.578127][ T1642] #0: ffffffff8bf753a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 722.588468][ T1642] 3 locks held by kworker/0:4/3173: [ 722.594422][ T1642] #0: ffff888010864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 [ 722.605729][ T1642] #1: ffffc900022dfda8 (cfg80211_disconnect_work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 [ 722.616930][ T1642] #2: ffffffff8d688de8 (rtnl_mutex){+.+.}-{3:3}, at: disconnect_work+0x18/0x200 [ 722.626636][ T1642] 1 lock held by in:imklog/8120: [ 722.631677][ T1642] #0: ffff88801943b4f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 722.642417][ T1642] 3 locks held by kworker/1:2/8434: [ 722.648040][ T1642] #0: ffff88802439e538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 [ 722.659444][ T1642] #1: ffffc900016ffda8 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 [ 722.670306][ T1642] #2: ffffffff8d688de8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 [ 722.680143][ T1642] 4 locks held by syz-executor144/8456: [ 722.686148][ T1642] 3 locks held by kworker/0:1/8457: [ 722.691353][ T1642] #0: ffff88802439e538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 [ 722.702798][ T1642] #1: ffffc900017cfda8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 [ 722.715775][ T1642] #2: ffffffff8d688de8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x12b0 [ 722.725710][ T1642] 2 locks held by kworker/0:5/8460: [ 722.730920][ T1642] #0: ffff888010864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 [ 722.742018][ T1642] #1: ffff8880b9c1f988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 [ 722.754025][ T1642] [ 722.756360][ T1642] ============================================= [ 722.756360][ T1642] [ 722.766476][ T1642] NMI backtrace for cpu 0 [ 722.770818][ T1642] CPU: 0 PID: 1642 Comm: khungtaskd Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 722.780637][ T1642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 722.790702][ T1642] Call Trace: [ 722.793981][ T1642] dump_stack+0x141/0x1d7 [ 722.798399][ T1642] nmi_cpu_backtrace.cold+0x44/0xd7 [ 722.803603][ T1642] ? lapic_can_unplug_cpu+0x80/0x80 [ 722.808847][ T1642] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 722.814901][ T1642] watchdog+0xd8e/0xf40 [ 722.819224][ T1642] ? trace_sched_process_hang+0x280/0x280 [ 722.824958][ T1642] kthread+0x3b1/0x4a0 [ 722.829500][ T1642] ? __kthread_bind_mask+0xc0/0xc0 [ 722.834648][ T1642] ret_from_fork+0x1f/0x30 [ 722.839275][ T1642] Sending NMI from CPU 0 to CPUs 1: [ 722.845527][ C1] NMI backtrace for cpu 1 [ 722.845538][ C1] CPU: 1 PID: 8456 Comm: syz-executor144 Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 722.845549][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 722.845559][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x60 [ 722.845570][ C1] Code: 81 e1 00 01 00 00 65 48 8b 14 25 00 f0 01 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 3c 15 00 00 85 c0 74 2b 8b 82 18 15 00 00 <83> f8 02 75 20 48 8b 8a 20 15 00 00 8b 92 1c 15 00 00 48 8b 01 48 [ 722.845586][ C1] RSP: 0018:ffffc9000195f2d8 EFLAGS: 00000246 [ 722.845598][ C1] RAX: 0000000000000000 RBX: ffff888018fccc00 RCX: 0000000000000000 [ 722.845606][ C1] RDX: ffff88801b119c80 RSI: ffffffff886cdf09 RDI: 0000000000000003 [ 722.845615][ C1] RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000000 [ 722.845623][ C1] R10: ffffffff886cdeaa R11: 0000000000000000 R12: 0000000000000000 [ 722.845631][ C1] R13: ffff8880136ec020 R14: dffffc0000000000 R15: 0000000000000000 [ 722.845641][ C1] FS: 0000000001f3e300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 722.845649][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 722.845657][ C1] CR2: 00007fb17485e000 CR3: 000000001e30f000 CR4: 00000000001506e0 [ 722.845665][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 722.845674][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 722.845681][ C1] Call Trace: [ 722.845686][ C1] ieee80211_chanctx_radar_detect+0x2c9/0x420 [ 722.845692][ C1] ieee80211_check_combinations+0x3b9/0x890 [ 722.845699][ C1] ? ieee80211_recalc_dtim+0x240/0x240 [ 722.845705][ C1] ieee80211_check_concurrent_iface+0x454/0x620 [ 722.845711][ C1] ieee80211_if_change_type+0x288/0x6e0 [ 722.845716][ C1] ieee80211_change_iface+0x26/0x210 [ 722.845720][ C1] cfg80211_change_iface+0x335/0xf30 [ 722.845725][ C1] nl80211_set_interface+0x65c/0x8d0 [ 722.845730][ C1] ? nl80211_notify_iface+0x180/0x180 [ 722.845735][ C1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 722.845741][ C1] ? nl80211_pre_doit+0xa6/0x620 [ 722.845746][ C1] genl_family_rcv_msg_doit+0x228/0x320 [ 722.845752][ C1] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 722.845758][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.845764][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.845770][ C1] ? ns_capable+0xde/0x100 [ 722.845774][ C1] genl_rcv_msg+0x328/0x580 [ 722.845779][ C1] ? genl_get_cmd+0x480/0x480 [ 722.845784][ C1] ? nl80211_notify_iface+0x180/0x180 [ 722.845789][ C1] ? lock_release+0x720/0x720 [ 722.845793][ C1] netlink_rcv_skb+0x153/0x420 [ 722.845798][ C1] ? genl_get_cmd+0x480/0x480 [ 722.845803][ C1] ? netlink_ack+0xaa0/0xaa0 [ 722.845807][ C1] genl_rcv+0x24/0x40 [ 722.845811][ C1] netlink_unicast+0x533/0x7d0 [ 722.845816][ C1] ? netlink_attachskb+0x870/0x870 [ 722.845821][ C1] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.845827][ C1] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.845833][ C1] ? __phys_addr_symbol+0x2c/0x70 [ 722.845838][ C1] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 722.845843][ C1] ? __check_object_size+0x171/0x3f0 [ 722.845848][ C1] netlink_sendmsg+0x856/0xd90 [ 722.845853][ C1] ? netlink_unicast+0x7d0/0x7d0 [ 722.845858][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.845864][ C1] ? netlink_unicast+0x7d0/0x7d0 [ 722.845868][ C1] sock_sendmsg+0xcf/0x120 [ 722.845873][ C1] ____sys_sendmsg+0x6e8/0x810 [ 722.845877][ C1] ? kernel_sendmsg+0x50/0x50 [ 722.845886][ C1] ? do_recvmmsg+0x6d0/0x6d0 [ 722.845890][ C1] ? fs_reclaim_release+0x9c/0xf0 [ 722.845893][ C1] ? lock_chain_count+0x20/0x20 [ 722.845897][ C1] ___sys_sendmsg+0xf3/0x170 [ 722.845901][ C1] ? sendmsg_copy_msghdr+0x160/0x160 [ 722.845905][ C1] ? __lock_acquire+0x16a7/0x5230 [ 722.845909][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.845914][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.845918][ C1] ? __fget_light+0x215/0x280 [ 722.845922][ C1] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.845929][ C1] __sys_sendmsg+0xe5/0x1b0 [ 722.845934][ C1] ? __sys_sendmsg_sock+0x30/0x30 [ 722.845939][ C1] ? __context_tracking_enter+0xef/0x100 [ 722.845944][ C1] ? syscall_enter_from_user_mode+0x27/0x70 [ 722.845949][ C1] do_syscall_64+0x2d/0x70 [ 722.845954][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 722.845959][ C1] RIP: 0033:0x4410f9 [ 722.845968][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 722.845982][ C1] RSP: 002b:00007fff21ead438 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 722.845994][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004410f9 [ 722.846002][ C1] RDX: 0000000004000004 RSI: 00000000200000c0 RDI: 0000000000000004 [ 722.846010][ C1] RBP: 0000000000000000 R08: 0000000c00000000 R09: 0000000c00000000 [ 722.846017][ C1] R10: 0000000c00000000 R11: 0000000000000246 R12: 000000000007622c [ 722.846025][ C1] R13: 00007fff21ead4a0 R14: 00007fff21ead490 R15: 00007fff21ead45c [ 723.346237][ T1642] Kernel panic - not syncing: hung_task: blocked tasks [ 723.353118][ T1642] CPU: 0 PID: 1642 Comm: khungtaskd Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 723.362758][ T1642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 723.372818][ T1642] Call Trace: [ 723.376102][ T1642] dump_stack+0x141/0x1d7 [ 723.380461][ T1642] panic+0x306/0x73d [ 723.384384][ T1642] ? __warn_printk+0xf3/0xf3 [ 723.388992][ T1642] ? lapic_can_unplug_cpu+0x80/0x80 [ 723.394199][ T1642] ? preempt_schedule_thunk+0x16/0x18 [ 723.399588][ T1642] ? nmi_trigger_cpumask_backtrace+0x196/0x230 [ 723.405760][ T1642] ? watchdog.cold+0x22d/0x248 [ 723.410635][ T1642] watchdog.cold+0x23e/0x248 [ 723.415236][ T1642] ? trace_sched_process_hang+0x280/0x280 [ 723.420976][ T1642] kthread+0x3b1/0x4a0 [ 723.425053][ T1642] ? __kthread_bind_mask+0xc0/0xc0 [ 723.430180][ T1642] ret_from_fork+0x1f/0x30 [ 723.435294][ T1642] Kernel Offset: disabled [ 723.439624][ T1642] Rebooting in 86400 seconds..