DUID 00:04:70:54:fc:d0:2a:32:b7:62:cf:21:72:23:c9:95:e9:3f
forked to background, child pid 3173
[ 21.968032][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0
[ 21.982712][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 71.141559][ T1065] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.243' (ED25519) to the list of known hosts.
executing program
[ 716.258951][ T27] INFO: task kworker/1:0:21 blocked for more than 143 seconds.
[ 716.266634][ T27] Not tainted 5.15.160-syzkaller #0
[ 716.272382][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.281591][ T27] task:kworker/1:0 state:D stack:23672 pid: 21 ppid: 2 flags:0x00004000
[ 716.290894][ T27] Workqueue: ipv6_addrconf addrconf_verify_work
[ 716.297295][ T27] Call Trace:
[ 716.300643][ T27]
[ 716.303719][ T27] __schedule+0x12c4/0x45b0
[ 716.308240][ T27] ? mark_lock+0x98/0x340
[ 716.313018][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[ 716.319230][ T27] ? release_firmware_map_entry+0x190/0x190
[ 716.325123][ T27] ? __mutex_trylock_common+0x8d/0x2e0
[ 716.330669][ T27] ? do_raw_spin_unlock+0x137/0x8b0
[ 716.336040][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 716.341285][ T27] ? lockdep_hardirqs_on+0x94/0x130
[ 716.346602][ T27] schedule+0x11b/0x1f0
[ 716.350836][ T27] schedule_preempt_disabled+0xf/0x20
[ 716.356323][ T27] __mutex_lock_common+0xe34/0x25a0
[ 716.361576][ T27] ? addrconf_verify_work+0xa/0x20
[ 716.366870][ T27] ? mutex_lock_io_nested+0x60/0x60
[ 716.372143][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[ 716.378249][ T27] ? print_irqtrace_events+0x210/0x210
[ 716.383756][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130
[ 716.390107][ T27] ? do_raw_spin_unlock+0x137/0x8b0
[ 716.395321][ T27] mutex_lock_nested+0x17/0x20
[ 716.400399][ T27] addrconf_verify_work+0xa/0x20
[ 716.405340][ T27] process_one_work+0x8a1/0x10c0
[ 716.410365][ T27] ? worker_detach_from_pool+0x260/0x260
[ 716.416163][ T27] ? _raw_spin_lock_irqsave+0x120/0x120
[ 716.421755][ T27] ? kthread_data+0x4e/0xc0
[ 716.426382][ T27] ? wq_worker_running+0x97/0x170
[ 716.431497][ T27] worker_thread+0xaca/0x1280
[ 716.436328][ T27] kthread+0x3f6/0x4f0
[ 716.440453][ T27] ? rcu_lock_release+0x20/0x20
[ 716.445419][ T27] ? kthread_blkcg+0xd0/0xd0
[ 716.450082][ T27] ret_from_fork+0x1f/0x30
[ 716.454632][ T27]
[ 716.457778][ T27]
[ 716.457778][ T27] Showing all locks held in the system:
[ 716.465557][ T27] 3 locks held by kworker/1:0/21:
[ 716.470830][ T27] #0: ffff88814aa90938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0
[ 716.481849][ T27] #1: ffffc90000db7d20 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0
[ 716.492350][ T27] #2: ffffffff8d9e7e48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20
[ 716.501826][ T27] 1 lock held by khungtaskd/27:
[ 716.506815][ T27] #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 716.516197][ T27] 2 locks held by getty/3259:
[ 716.521023][ T27] #0: ffff888024b67098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 716.530811][ T27] #1: ffffc9000209b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0
[ 716.541092][ T27] 1 lock held by syz-executor479/3528:
[ 716.546551][ T27]
[ 716.548905][ T27] =============================================
[ 716.548905][ T27]
[ 716.557527][ T27] NMI backtrace for cpu 0
[ 716.561851][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.160-syzkaller #0
[ 716.569816][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 716.579857][ T27] Call Trace:
[ 716.583126][ T27]
[ 716.586044][ T27] dump_stack_lvl+0x1e3/0x2d0
[ 716.590716][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[ 716.596343][ T27] ? panic+0x860/0x860
[ 716.600406][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0
[ 716.605510][ T27] nmi_cpu_backtrace+0x46a/0x4a0
[ 716.610436][ T27] ? __wake_up_klogd+0xd5/0x100
[ 716.615281][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[ 716.621419][ T27] ? _printk+0xd1/0x120
[ 716.625563][ T27] ? panic+0x860/0x860
[ 716.629707][ T27] ? __wake_up_klogd+0xcc/0x100
[ 716.634550][ T27] ? panic+0x860/0x860
[ 716.638610][ T27] ? __rcu_read_unlock+0x92/0x100
[ 716.643622][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 716.649680][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0
[ 716.655655][ T27] watchdog+0xe72/0xeb0
[ 716.659810][ T27] kthread+0x3f6/0x4f0
[ 716.663868][ T27] ? hungtask_pm_notify+0x50/0x50
[ 716.668879][ T27] ? kthread_blkcg+0xd0/0xd0
[ 716.673470][ T27] ret_from_fork+0x1f/0x30
[ 716.677889][ T27]
[ 716.681008][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 716.686209][ C1] NMI backtrace for cpu 1
[ 716.686217][ C1] CPU: 1 PID: 3528 Comm: syz-executor479 Not tainted 5.15.160-syzkaller #0
[ 716.686232][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 716.686240][ C1] RIP: 0010:check_preemption_disabled+0x20/0x110
[ 716.686260][ C1] Code: 8a 48 c7 c6 a0 f6 d8 8a eb 00 41 57 41 56 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d c8 13 e4 75 <65> 8b 05 31 6e e4 75 a9 ff ff ff 7f 74 22 65 48 8b 04 25 28 00 00
[ 716.686272][ C1] RSP: 0018:ffffc90003206520 EFLAGS: 00000082
[ 716.686284][ C1] RAX: e079a1c0e37e7400 RBX: 0000000000000001 RCX: ffff888020ee1dc0
[ 716.686294][ C1] RDX: 0000000000000000 RSI: ffffffff8a8b3780 RDI: ffffffff8ad8f6c0
[ 716.686304][ C1] RBP: 00000000ffffffff R08: dffffc0000000000 R09: ffffc90003206780
[ 716.686314][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246
[ 716.686323][ C1] R13: ffff888020ee1dc0 R14: 00000000ffffffff R15: ffffffff8c91fa60
[ 716.686333][ C1] FS: 00005555565b0380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[ 716.686346][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 716.686356][ C1] CR2: 00005555565b0ca8 CR3: 0000000070f0a000 CR4: 00000000003506e0
[ 716.686367][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 716.686375][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 716.686384][ C1] Call Trace:
[ 716.686388][ C1]
[ 716.686392][ C1] ? nmi_cpu_backtrace+0x39f/0x4a0
[ 716.686408][ C1] ? read_lock_is_recursive+0x10/0x10
[ 716.686423][ C1] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[ 716.686438][ C1] ? unknown_nmi_error+0xd0/0xd0
[ 716.686459][ C1] ? nmi_cpu_backtrace_handler+0x8/0x10
[ 716.686472][ C1] ? nmi_handle+0xf7/0x370
[ 716.686487][ C1] ? check_preemption_disabled+0x20/0x110
[ 716.686503][ C1] ? default_do_nmi+0x62/0x150
[ 716.686517][ C1] ? exc_nmi+0xa8/0x100
[ 716.686531][ C1] ? end_repeat_nmi+0x16/0x31
[ 716.686549][ C1] ? check_preemption_disabled+0x20/0x110
[ 716.686565][ C1] ? check_preemption_disabled+0x20/0x110
[ 716.686582][ C1] ? check_preemption_disabled+0x20/0x110
[ 716.686598][ C1]
[ 716.686602][ C1]
[ 716.686607][ C1] lock_is_held_type+0x76/0x180
[ 716.686624][ C1] ___might_sleep+0xf1/0x6a0
[ 716.686641][ C1] ? __might_sleep+0xc0/0xc0
[ 716.686656][ C1] ? rcu_lock_release+0x20/0x20
[ 716.686671][ C1] ? tcf_idr_check_alloc+0x97/0x380
[ 716.686686][ C1] ? __lock_acquire+0x1ff0/0x1ff0
[ 716.686701][ C1] __mutex_lock_common+0xd4/0x25a0
[ 716.686733][ C1] ? __mutex_unlock_slowpath+0x218/0x750
[ 716.686747][ C1] ? tcf_idr_check_alloc+0xa1/0x380
[ 716.686761][ C1] ? mutex_lock_io_nested+0x60/0x60
[ 716.686777][ C1] ? radix_tree_lookup+0x14a/0x280
[ 716.686792][ C1] ? radix_tree_lookup+0x14a/0x280
[ 716.686806][ C1] ? radix_tree_lookup+0x234/0x280
[ 716.686821][ C1] mutex_lock_nested+0x17/0x20
[ 716.686835][ C1] tcf_idr_check_alloc+0xa1/0x380
[ 716.686851][ C1] tcf_police_init+0x294/0x17c0
[ 716.686864][ C1] ? netlink_rcv_skb+0x1cf/0x410
[ 716.686876][ C1] ? netlink_unicast+0x7b6/0x980
[ 716.686892][ C1] ? __se_sys_sendmsg+0x19a/0x260
[ 716.686913][ C1] ? tcf_police_search+0x40/0x40
[ 716.686936][ C1] ? tcf_action_init_1+0x226/0x7f0
[ 716.686950][ C1] ? nla_memcpy+0x56/0xb0
[ 716.686969][ C1] ? memcpy+0x3c/0x60
[ 716.686984][ C1] ? tcf_police_search+0x40/0x40
[ 716.686997][ C1] tcf_action_init_1+0x50f/0x7f0
[ 716.687015][ C1] ? tc_action_load_ops+0x550/0x550
[ 716.687029][ C1] ? read_lock_is_recursive+0x10/0x10
[ 716.687043][ C1] ? rcu_lock_release+0x5/0x20
[ 716.687066][ C1] tcf_action_init+0x2f3/0x750
[ 716.687083][ C1] ? tcf_action_init_1+0x7f0/0x7f0
[ 716.687108][ C1] ? reacquire_held_locks+0x660/0x660
[ 716.687134][ C1] ? apparmor_capable+0x12e/0x190
[ 716.687150][ C1] ? __nla_parse+0x3c/0x50
[ 716.687165][ C1] tc_ctl_action+0x49b/0xd00
[ 716.687184][ C1] ? tcf_free_cookie_rcu+0x40/0x40
[ 716.687198][ C1] ? read_lock_is_recursive+0x10/0x10
[ 716.687236][ C1] ? tcf_free_cookie_rcu+0x40/0x40
[ 716.687251][ C1] rtnetlink_rcv_msg+0x993/0xee0
[ 716.687267][ C1] ? reacquire_held_locks+0x660/0x660
[ 716.687283][ C1] ? rtnetlink_bind+0x80/0x80
[ 716.687298][ C1] ? stack_trace_save+0x1c0/0x1c0
[ 716.687313][ C1] ? __kernel_text_address+0x94/0x100
[ 716.687330][ C1] ? unwind_get_return_address+0x49/0x80
[ 716.687346][ C1] ? reacquire_held_locks+0x660/0x660
[ 716.687359][ C1] ? arch_stack_walk+0xf3/0x140
[ 716.687375][ C1] ? mark_lock+0x98/0x340
[ 716.687390][ C1] ? mark_lock+0x98/0x340
[ 716.687404][ C1] ? __lock_acquire+0x1295/0x1ff0
[ 716.687429][ C1] netlink_rcv_skb+0x1cf/0x410
[ 716.687443][ C1] ? rtnetlink_bind+0x80/0x80
[ 716.687458][ C1] ? netlink_ack+0xb10/0xb10
[ 716.687477][ C1] netlink_unicast+0x7b6/0x980
[ 716.687497][ C1] ? netlink_detachskb+0x90/0x90
[ 716.687512][ C1] ? __virt_addr_valid+0x39e/0x450
[ 716.687525][ C1] ? 0xffffffff81000000
[ 716.687534][ C1] ? __check_object_size+0x300/0x410
[ 716.687550][ C1] ? bpf_lsm_netlink_send+0x5/0x10
[ 716.687566][ C1] netlink_sendmsg+0xa30/0xd60
[ 716.687583][ C1] ? netlink_getsockopt+0x5b0/0x5b0
[ 716.687598][ C1] ? aa_sock_msg_perm+0x91/0x150
[ 716.687613][ C1] ? bpf_lsm_socket_sendmsg+0x5/0x10
[ 716.687625][ C1] ? security_socket_sendmsg+0x7d/0xa0
[ 716.687638][ C1] ? netlink_getsockopt+0x5b0/0x5b0
[ 716.687652][ C1] ____sys_sendmsg+0x59e/0x8f0
[ 716.687667][ C1] ? iovec_from_user+0x300/0x390
[ 716.687685][ C1] ? __sys_sendmsg_sock+0x30/0x30
[ 716.687707][ C1] ___sys_sendmsg+0x252/0x2e0
[ 716.687725][ C1] ? __sys_sendmsg+0x260/0x260
[ 716.687741][ C1] ? __lock_acquire+0x1295/0x1ff0
[ 716.687767][ C1] ? __context_tracking_enter+0x5f/0x90
[ 716.687782][ C1] ? __context_tracking_exit+0x4c/0x80
[ 716.687798][ C1] ? __fdget+0x158/0x220
[ 716.687814][ C1] __se_sys_sendmsg+0x19a/0x260
[ 716.687830][ C1] ? __x64_sys_sendmsg+0x80/0x80
[ 716.687850][ C1] ? syscall_enter_from_user_mode+0x2e/0x240
[ 716.687865][ C1] ? lockdep_hardirqs_on+0x94/0x130
[ 716.687880][ C1] ? syscall_enter_from_user_mode+0x2e/0x240
[ 716.687897][ C1] do_syscall_64+0x3b/0xb0
[ 716.687910][ C1] ? clear_bhb_loop+0x15/0x70
[ 716.687923][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 716.687937][ C1] RIP: 0033:0x7f022be23df9
[ 716.687949][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48
[ 716.687963][ C1] RSP: 002b:00007ffca0c314c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 716.687976][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f022be23df9
[ 716.687986][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003
[ 716.687994][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006
[ 716.688002][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 716.688010][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[ 716.688024][ C1]
[ 716.688030][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.820 msecs
[ 716.698551][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 716.698562][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.160-syzkaller #0
[ 716.698580][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 716.698590][ T27] Call Trace:
[ 716.698595][ T27]
[ 716.698602][ T27] dump_stack_lvl+0x1e3/0x2d0
[ 716.698624][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[ 716.698642][ T27] ? panic+0x860/0x860
[ 716.698670][ T27] panic+0x318/0x860
[ 716.698687][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 716.698706][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 716.698731][ T27] ? fb_is_primary_device+0xd0/0xd0
[ 716.698750][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 716.698771][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 716.698787][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0
[ 716.698807][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0
[ 716.698827][ T27] watchdog+0xeb0/0xeb0
[ 716.698858][ T27] kthread+0x3f6/0x4f0
[ 716.698874][ T27] ? hungtask_pm_notify+0x50/0x50
[ 716.698891][ T27] ? kthread_blkcg+0xd0/0xd0
[ 716.698908][ T27] ret_from_fork+0x1f/0x30
[ 716.698938][ T27]
[ 716.699127][ T27] Kernel Offset: disabled
[ 717.507707][ T27] Rebooting in 86400 seconds..