DUID 00:04:f2:7f:36:b6:03:80:f9:c3:71:03:f9:5e:f9:cf:ad:4a
forked to background, child pid 3189
[ 26.456504][ T3190] 8021q: adding VLAN 0 to HW filter on device bond0
[ 26.460596][ T3190] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 76.326633][ T146] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.126' (ECDSA) to the list of known hosts.
executing program
[ 716.323899][ T29] INFO: task kworker/0:2:146 blocked for more than 143 seconds.
[ 716.331676][ T29] Not tainted 5.19.0-rc3-syzkaller-00175-g0a18d802d65c #0
[ 716.339499][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.348374][ T29] task:kworker/0:2 state:D stack:26848 pid: 146 ppid: 2 flags:0x00004000
[ 716.357771][ T29] Workqueue: ipv6_addrconf addrconf_verify_work
[ 716.364208][ T29] Call Trace:
[ 716.367584][ T29]
[ 716.370540][ T29] __schedule+0xa00/0x4b50
[ 716.375184][ T29] ? find_held_lock+0x2d/0x110
[ 716.379997][ T29] ? wq_worker_sleeping+0x1e5/0x250
[ 716.385397][ T29] ? mark_held_locks+0x9f/0xe0
[ 716.390203][ T29] ? rwlock_bug.part.0+0x90/0x90
[ 716.395311][ T29] ? io_schedule_timeout+0x140/0x140
[ 716.400628][ T29] ? lockdep_hardirqs_on+0x79/0x100
[ 716.405971][ T29] schedule+0xd2/0x1f0
[ 716.410170][ T29] schedule_preempt_disabled+0xf/0x20
[ 716.415680][ T29] __mutex_lock+0xa70/0x1350
[ 716.420294][ T29] ? addrconf_verify_work+0xe/0x20
[ 716.425550][ T29] ? mutex_lock_io_nested+0x1190/0x1190
[ 716.431119][ T29] ? lock_release+0x780/0x780
[ 716.436235][ T29] addrconf_verify_work+0xe/0x20
[ 716.441197][ T29] process_one_work+0x996/0x1610
[ 716.446302][ T29] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 716.451712][ T29] ? rwlock_bug.part.0+0x90/0x90
[ 716.456766][ T29] ? _raw_spin_lock_irq+0x41/0x50
[ 716.461890][ T29] worker_thread+0x665/0x1080
[ 716.466708][ T29] ? __kthread_parkme+0x15f/0x220
[ 716.471755][ T29] ? process_one_work+0x1610/0x1610
[ 716.477082][ T29] kthread+0x2e9/0x3a0
[ 716.481183][ T29] ? kthread_complete_and_exit+0x40/0x40
[ 716.487029][ T29] ret_from_fork+0x1f/0x30
[ 716.491490][ T29]
[ 716.494711][ T29] INFO: task dhcpcd:3190 blocked for more than 143 seconds.
[ 716.501999][ T29] Not tainted 5.19.0-rc3-syzkaller-00175-g0a18d802d65c #0
[ 716.509867][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.518660][ T29] task:dhcpcd state:D stack:22976 pid: 3190 ppid: 3189 flags:0x00000000
[ 716.528035][ T29] Call Trace:
[ 716.531340][ T29]
[ 716.534373][ T29] __schedule+0xa00/0x4b50
[ 716.538849][ T29] ? __mutex_lock+0xa6b/0x1350
[ 716.543653][ T29] ? io_schedule_timeout+0x140/0x140
[ 716.549084][ T29] schedule+0xd2/0x1f0
[ 716.553176][ T29] schedule_preempt_disabled+0xf/0x20
[ 716.558779][ T29] __mutex_lock+0xa70/0x1350
[ 716.563412][ T29] ? __rhashtable_lookup.constprop.0+0x317/0x5e0
[ 716.570094][ T29] ? __netlink_dump_start+0x16a/0x900
[ 716.575575][ T29] ? mutex_lock_io_nested+0x1190/0x1190
[ 716.581154][ T29] ? __rhashtable_lookup.constprop.0+0x5e0/0x5e0
[ 716.587584][ T29] ? lock_downgrade+0x6e0/0x6e0
[ 716.592478][ T29] __netlink_dump_start+0x16a/0x900
[ 716.597795][ T29] rtnetlink_rcv_msg+0x73e/0xc90
[ 716.602846][ T29] ? rtnl_fill_ifinfo+0x4470/0x4470
[ 716.608156][ T29] ? rtnl_fdb_dump+0x9a0/0x9a0
[ 716.612949][ T29] ? rtnl_fill_ifinfo+0x4470/0x4470
[ 716.618270][ T29] netlink_rcv_skb+0x153/0x420
[ 716.623065][ T29] ? rtnl_fdb_dump+0x9a0/0x9a0
[ 716.627948][ T29] ? netlink_ack+0xa80/0xa80
[ 716.632549][ T29] ? netlink_deliver_tap+0x1a2/0xc40
[ 716.637954][ T29] ? netlink_deliver_tap+0x1b1/0xc40
[ 716.643257][ T29] netlink_unicast+0x543/0x7f0
[ 716.648220][ T29] ? netlink_attachskb+0x880/0x880
[ 716.653354][ T29] ? __virt_addr_valid+0x5d/0x2d0
[ 716.658481][ T29] ? __phys_addr_symbol+0x2c/0x70
[ 716.663535][ T29] ? __check_object_size+0x2de/0x700
[ 716.668935][ T29] netlink_sendmsg+0x917/0xe10
[ 716.673795][ T29] ? netlink_unicast+0x7f0/0x7f0
[ 716.678760][ T29] ? bpf_lsm_socket_sendmsg+0x5/0x10
[ 716.684144][ T29] ? netlink_unicast+0x7f0/0x7f0
[ 716.689109][ T29] sock_sendmsg+0xcf/0x120
[ 716.693580][ T29] __sys_sendto+0x21a/0x320
[ 716.698221][ T29] ? __ia32_sys_getpeername+0xb0/0xb0
[ 716.703629][ T29] ? __context_tracking_exit+0xb8/0xe0
[ 716.709214][ T29] __x64_sys_sendto+0xdd/0x1b0
[ 716.714050][ T29] ? lockdep_hardirqs_on+0x79/0x100
[ 716.719270][ T29] ? syscall_enter_from_user_mode+0x21/0x70
[ 716.725352][ T29] do_syscall_64+0x35/0xb0
[ 716.729836][ T29] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 716.735841][ T29] RIP: 0033:0x7f2bfaf0f206
[ 716.740275][ T29] RSP: 002b:00007ffe2691a358 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 716.748808][ T29] RAX: ffffffffffffffda RBX: 00007ffe2691b490 RCX: 00007f2bfaf0f206
[ 716.756871][ T29] RDX: 0000000000000014 RSI: 00007ffe2691b3b0 RDI: 0000000000000018
[ 716.764947][ T29] RBP: 00007ffe2691b420 R08: 00007ffe2691b394 R09: 000000000000000c
[ 716.772943][ T29] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2691b3b0
[ 716.780996][ T29] R13: 00007ffe2691b394 R14: 0000000000000000 R15: 00007ffe2691a360
[ 716.789098][ T29]
[ 716.792161][ T29]
[ 716.792161][ T29] Showing all locks held in the system:
[ 716.799928][ T29] 1 lock held by khungtaskd/29:
[ 716.804887][ T29] #0: ffffffff8bd86ba0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 716.814881][ T29] 3 locks held by kworker/0:2/146:
[ 716.819999][ T29] #0: ffff888026879138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610
[ 716.831136][ T29] #1: ffffc9000297fda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610
[ 716.844346][ T29] #2: ffffffff8d58e828 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20
[ 716.853882][ T29] 1 lock held by dhcpcd/3190:
[ 716.858570][ T29] #0: ffffffff8d58e828 (rtnl_mutex){+.+.}-{3:3}, at: __netlink_dump_start+0x16a/0x900
[ 716.868376][ T29] 2 locks held by getty/3295:
[ 716.873058][ T29] #0: ffff88814ada8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 716.883001][ T29] #1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0
[ 716.893370][ T29] 1 lock held by syz-executor355/3648:
[ 716.898919][ T29]
[ 716.901290][ T29] =============================================
[ 716.901290][ T29]
[ 716.909934][ T29] NMI backtrace for cpu 0
[ 716.914285][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc3-syzkaller-00175-g0a18d802d65c #0
[ 716.924286][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2022
[ 716.934366][ T29] Call Trace:
[ 716.937661][ T29]
[ 716.940594][ T29] dump_stack_lvl+0xcd/0x134
[ 716.945254][ T29] nmi_cpu_backtrace.cold+0x47/0x144
[ 716.950557][ T29] ? lapic_can_unplug_cpu+0x80/0x80
[ 716.955779][ T29] nmi_trigger_cpumask_backtrace+0x1e6/0x230
[ 716.961847][ T29] watchdog+0xc22/0xf90
[ 716.966026][ T29] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 716.972032][ T29] kthread+0x2e9/0x3a0
[ 716.976104][ T29] ? kthread_complete_and_exit+0x40/0x40
[ 716.981739][ T29] ret_from_fork+0x1f/0x30
[ 716.986185][ T29]
[ 716.989319][ T29] Sending NMI from CPU 0 to CPUs 1:
[ 716.994621][ C1] NMI backtrace for cpu 1
[ 716.994631][ C1] CPU: 1 PID: 33 Comm: kcompactd1 Not tainted 5.19.0-rc3-syzkaller-00175-g0a18d802d65c #0
[ 716.994652][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2022
[ 716.994662][ C1] RIP: 0010:static_obj+0x59/0xc0
[ 716.994689][ C1] Code: 3d cb 87 5c 0a 00 75 2a 48 c7 c0 00 e9 b9 8b 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 5a 48 3b 2d 67 87 5c 0a <72> 06 31 c0 84 db 75 12 48 81 fd 00 00 00 81 72 0c 84 db 74 08 b8
[ 716.994707][ C1] RSP: 0018:ffffc90000a9fc90 EFLAGS: 00000287
[ 716.994725][ C1] RAX: 1ffffffff1773d20 RBX: ffffffff8dbbb901 RCX: 0000000000000000
[ 716.994738][ C1] RDX: dffffc0000000000 RSI: ffffffff89cec240 RDI: ffffffff90f525a0
[ 716.994750][ C1] RBP: ffffffff90f525a0 R08: 0000000000000000 R09: 0000000000000000
[ 716.994762][ C1] R10: fffffbfff222c29f R11: 0000000000000001 R12: ffffffff90f525a0
[ 716.994780][ C1] R13: 0000000000000000 R14: ffffffff90f4f980 R15: 000000000000005a
[ 716.994792][ C1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[ 716.994810][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 716.994823][ C1] CR2: 0000555556a492b8 CR3: 0000000020d73000 CR4: 00000000003506e0
[ 716.994835][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 716.994846][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 716.994858][ C1] Call Trace:
[ 716.994863][ C1]
[ 716.994870][ C1] lockdep_init_map_type+0x21a/0x7f0
[ 716.994891][ C1] schedule_timeout+0x135/0x2a0
[ 716.994912][ C1] ? usleep_range_state+0x1b0/0x1b0
[ 716.994932][ C1] ? destroy_timer_on_stack+0x20/0x20
[ 716.994953][ C1] ? _raw_spin_unlock_irqrestore+0x3d/0x70
[ 716.994974][ C1] ? prepare_to_wait_event+0xc8/0x690
[ 716.994994][ C1] kcompactd+0xa5d/0xf30
[ 716.995015][ C1] ? kcompactd_do_work+0x730/0x730
[ 716.995033][ C1] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 716.995055][ C1] ? prepare_to_wait_exclusive+0x2b0/0x2b0
[ 716.995081][ C1] ? __kthread_parkme+0x15f/0x220
[ 716.995099][ C1] ? kcompactd_do_work+0x730/0x730
[ 716.995117][ C1] kthread+0x2e9/0x3a0
[ 716.995133][ C1] ? kthread_complete_and_exit+0x40/0x40
[ 716.995153][ C1] ret_from_fork+0x1f/0x30
[ 716.995181][ C1]
[ 716.995614][ T29] Kernel panic - not syncing: hung_task: blocked tasks
[ 717.222490][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc3-syzkaller-00175-g0a18d802d65c #0
[ 717.232386][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2022
[ 717.242445][ T29] Call Trace:
[ 717.245724][ T29]
[ 717.248657][ T29] dump_stack_lvl+0xcd/0x134
[ 717.253265][ T29] panic+0x2d7/0x64a
[ 717.257165][ T29] ? panic_print_sys_info.part.0+0x10b/0x10b
[ 717.263158][ T29] ? irq_work_claim+0x76/0x90
[ 717.267854][ T29] ? lapic_can_unplug_cpu+0x80/0x80
[ 717.273058][ T29] ? irq_work_queue+0x29/0x80
[ 717.277764][ T29] ? __wake_up_klogd.part.0+0x99/0xf0
[ 717.283145][ T29] ? watchdog.cold+0x5/0x143
[ 717.287793][ T29] watchdog.cold+0x16/0x143
[ 717.292334][ T29] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 717.298337][ T29] kthread+0x2e9/0x3a0
[ 717.302421][ T29] ? kthread_complete_and_exit+0x40/0x40
[ 717.308064][ T29] ret_from_fork+0x1f/0x30
[ 717.312505][ T29]
[ 717.315830][ T29] Kernel Offset: disabled
[ 717.320160][ T29] Rebooting in 86400 seconds..