DUID 00:04:b0:7e:30:9f:4d:11:81:da:bf:2d:3d:77:4c:17:c1:ba
forked to background, child pid 4758
[ 45.618943][ T4759] 8021q: adding VLAN 0 to HW filter on device bond0
[ 45.636995][ T4759] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 86.968414][ T58] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.95' (ED25519) to the list of known hosts.
executing program
[ 716.726198][ T30] INFO: task kworker/u8:8:2852 blocked for more than 143 seconds.
[ 716.734338][ T30] Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0
[ 716.742477][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.751970][ T30] task:kworker/u8:8 state:D stack:21384 pid:2852 tgid:2852 ppid:2 flags:0x00004000
[ 716.762507][ T30] Workqueue: ipv6_addrconf addrconf_verify_work
[ 716.769095][ T30] Call Trace:
[ 716.772404][ T30]
[ 716.775357][ T30] __schedule+0x17e8/0x4a20
[ 716.780204][ T30] ? __pfx___schedule+0x10/0x10
[ 716.785101][ T30] ? __pfx_lock_release+0x10/0x10
[ 716.790775][ T30] ? __mutex_trylock_common+0x92/0x2e0
[ 716.796535][ T30] ? kthread_data+0x52/0xd0
[ 716.801064][ T30] ? schedule+0x90/0x320
[ 716.805325][ T30] ? wq_worker_sleeping+0x66/0x240
[ 716.811066][ T30] ? schedule+0x90/0x320
[ 716.815350][ T30] schedule+0x14b/0x320
[ 716.819965][ T30] schedule_preempt_disabled+0x13/0x30
[ 716.825547][ T30] __mutex_lock+0x6a4/0xd70
[ 716.830538][ T30] ? __mutex_lock+0x527/0xd70
[ 716.835255][ T30] ? addrconf_verify_work+0x19/0x30
[ 716.840945][ T30] ? __pfx___mutex_lock+0x10/0x10
[ 716.846534][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 716.852545][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 716.859643][ T30] ? process_scheduled_works+0x945/0x1830
[ 716.865395][ T30] addrconf_verify_work+0x19/0x30
[ 716.870831][ T30] process_scheduled_works+0xa2c/0x1830
[ 716.876786][ T30] ? __pfx_process_scheduled_works+0x10/0x10
[ 716.882825][ T30] ? assign_work+0x364/0x3d0
[ 716.888018][ T30] worker_thread+0x86d/0xd70
[ 716.892767][ T30] ? __kthread_parkme+0x169/0x1d0
[ 716.898150][ T30] ? __pfx_worker_thread+0x10/0x10
[ 716.903299][ T30] kthread+0x2f0/0x390
[ 716.907921][ T30] ? __pfx_worker_thread+0x10/0x10
[ 716.913101][ T30] ? __pfx_kthread+0x10/0x10
[ 716.918205][ T30] ret_from_fork+0x4b/0x80
[ 716.922669][ T30] ? __pfx_kthread+0x10/0x10
[ 716.927320][ T30] ret_from_fork_asm+0x1a/0x30
[ 716.932130][ T30]
[ 716.935184][ T30]
[ 716.935184][ T30] Showing all locks held in the system:
[ 716.943648][ T30] 1 lock held by khungtaskd/30:
[ 716.948783][ T30] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0
[ 716.959013][ T30] 3 locks held by kworker/u8:8/2852:
[ 716.964320][ T30] #0: ffff88802a7a1948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 716.976762][ T30] #1: ffffc90009d67d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 716.991054][ T30] #2: ffffffff8f5e7648 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30
[ 717.000975][ T30] 2 locks held by getty/4847:
[ 717.005675][ T30] #0: ffff88802b0170a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 717.016226][ T30] #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10
[ 717.026894][ T30] 1 lock held by syz-executor199/5120:
[ 717.032381][ T30]
[ 717.034718][ T30] =============================================
[ 717.034718][ T30]
[ 717.043904][ T30] NMI backtrace for cpu 0
[ 717.048265][ T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0
[ 717.058175][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 717.068247][ T30] Call Trace:
[ 717.071541][ T30]
[ 717.074488][ T30] dump_stack_lvl+0x241/0x360
[ 717.079192][ T30] ? __pfx_dump_stack_lvl+0x10/0x10
[ 717.084445][ T30] ? __pfx__printk+0x10/0x10
[ 717.089060][ T30] ? vprintk_emit+0x631/0x770
[ 717.093768][ T30] ? __pfx_vprintk_emit+0x10/0x10
[ 717.098981][ T30] nmi_cpu_backtrace+0x49c/0x4d0
[ 717.103962][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 717.109446][ T30] ? _printk+0xd5/0x120
[ 717.113651][ T30] ? __pfx__printk+0x10/0x10
[ 717.118283][ T30] ? __wake_up_klogd+0xcc/0x110
[ 717.123171][ T30] ? __pfx__printk+0x10/0x10
[ 717.127810][ T30] ? __rcu_read_unlock+0xa1/0x110
[ 717.133030][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 717.139038][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320
[ 717.145046][ T30] watchdog+0xfde/0x1020
[ 717.149315][ T30] ? watchdog+0x1ea/0x1020
[ 717.153766][ T30] ? __pfx_watchdog+0x10/0x10
[ 717.158463][ T30] kthread+0x2f0/0x390
[ 717.162560][ T30] ? __pfx_watchdog+0x10/0x10
[ 717.167258][ T30] ? __pfx_kthread+0x10/0x10
[ 717.171869][ T30] ret_from_fork+0x4b/0x80
[ 717.176308][ T30] ? __pfx_kthread+0x10/0x10
[ 717.180932][ T30] ret_from_fork_asm+0x1a/0x30
[ 717.185761][ T30]
[ 717.188908][ T30] Sending NMI from CPU 0 to CPUs 1:
[ 717.194163][ C1] NMI backtrace for cpu 1
[ 717.194180][ C1] CPU: 1 PID: 5120 Comm: syz-executor199 Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0
[ 717.194199][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 717.194213][ C1] RIP: 0010:__kasan_check_read+0x0/0x20
[ 717.194240][ C1] Code: 8d 4c 89 fe e8 b1 db 88 09 31 db eb d0 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 89 f6 48 8b 0c 24 31 d2 e9 6f e6 ff ff 66 2e 0f 1f 84
[ 717.194254][ C1] RSP: 0018:ffffc900033fe4a8 EFLAGS: 00000003
[ 717.194269][ C1] RAX: 0000000000000001 RBX: 0000000000000077 RCX: 0000000000000001
[ 717.194280][ C1] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff92fb5588
[ 717.194292][ C1] RBP: 00000000ffffffff R08: ffffffff92fb5587 R09: 1ffffffff25f6ab0
[ 717.194304][ C1] R10: dffffc0000000000 R11: fffffbfff25f6ab1 R12: 0000000000000000
[ 717.194316][ C1] R13: ffff88802a008b00 R14: 0000000000000000 R15: ffff88802a008b00
[ 717.194328][ C1] FS: 000055557437b380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
[ 717.194342][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 717.194354][ C1] CR2: 00005604204df7f0 CR3: 0000000076108000 CR4: 00000000003506f0
[ 717.194369][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 717.194378][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 717.194389][ C1] Call Trace:
[ 717.194397][ C1]
[ 717.194403][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0
[ 717.194425][ C1] ? __pfx_lock_acquire+0x10/0x10
[ 717.194444][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 717.194473][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 717.194493][ C1] ? nmi_handle+0x14f/0x5a0
[ 717.194518][ C1] ? nmi_handle+0x2a/0x5a0
[ 717.194543][ C1] ? __pfx___kasan_check_read+0x10/0x10
[ 717.194561][ C1] ? default_do_nmi+0x63/0x160
[ 717.194582][ C1] ? exc_nmi+0x123/0x1f0
[ 717.194602][ C1] ? end_repeat_nmi+0xf/0x53
[ 717.194628][ C1] ? __pfx___kasan_check_read+0x10/0x10
[ 717.194646][ C1] ? __pfx___kasan_check_read+0x10/0x10
[ 717.194666][ C1] ? __pfx___kasan_check_read+0x10/0x10
[ 717.194684][ C1]
[ 717.194689][ C1]
[ 717.194694][ C1] __lock_acquire+0x86e/0x1fd0
[ 717.194720][ C1] lock_acquire+0x1ed/0x550
[ 717.194737][ C1] ? tcf_idr_check_alloc+0x110/0x900
[ 717.194761][ C1] ? __pfx_lock_acquire+0x10/0x10
[ 717.194778][ C1] ? tcf_idr_check_alloc+0x110/0x900
[ 717.194797][ C1] ? __pfx_lock_release+0x10/0x10
[ 717.194815][ C1] ? radix_tree_lookup+0xa6/0x290
[ 717.194838][ C1] ? radix_tree_lookup+0xa6/0x290
[ 717.194861][ C1] ? tcf_idr_check_alloc+0x110/0x900
[ 717.194880][ C1] tcf_idr_check_alloc+0x12d/0x900
[ 717.194898][ C1] ? tcf_idr_check_alloc+0x110/0x900
[ 717.194919][ C1] ? __pfx_tcf_idr_check_alloc+0x10/0x10
[ 717.194940][ C1] ? __nla_parse+0x40/0x60
[ 717.194966][ C1] tcf_police_init+0x29b/0x17c0
[ 717.194986][ C1] ? __sock_sendmsg+0x221/0x270
[ 717.195008][ C1] ? ____sys_sendmsg+0x525/0x7d0
[ 717.195033][ C1] ? __pfx_tcf_police_init+0x10/0x10
[ 717.195066][ C1] ? nla_memcpy+0x5d/0xc0
[ 717.195089][ C1] ? __asan_memcpy+0x40/0x70
[ 717.195108][ C1] ? __pfx_tcf_police_init+0x10/0x10
[ 717.195129][ C1] tcf_action_init_1+0x5d7/0x890
[ 717.195164][ C1] ? __pfx_tcf_action_init_1+0x10/0x10
[ 717.195200][ C1] ? tcf_action_fill_size+0x1e/0x2d0
[ 717.195221][ C1] tcf_action_init+0x2e4/0x940
[ 717.195245][ C1] ? __pfx_tcf_action_init+0x10/0x10
[ 717.195289][ C1] ? apparmor_capable+0x138/0x1b0
[ 717.195316][ C1] tc_ctl_action+0x47d/0xcf0
[ 717.195336][ C1] ? is_bpf_text_address+0x26/0x2a0
[ 717.195358][ C1] ? __pfx_tc_ctl_action+0x10/0x10
[ 717.195390][ C1] ? trace_contention_end+0x3c/0x120
[ 717.195411][ C1] ? __mutex_lock+0x2ef/0xd70
[ 717.195437][ C1] ? __pfx___mutex_lock+0x10/0x10
[ 717.195465][ C1] ? __pfx_tc_ctl_action+0x10/0x10
[ 717.195484][ C1] rtnetlink_rcv_msg+0x89b/0x1180
[ 717.195507][ C1] ? rtnetlink_rcv_msg+0x208/0x1180
[ 717.195529][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 717.195549][ C1] ? is_bpf_text_address+0x285/0x2a0
[ 717.195569][ C1] ? __pfx_validate_chain+0x10/0x10
[ 717.195589][ C1] ? __pfx_validate_chain+0x10/0x10
[ 717.195610][ C1] ? arch_stack_walk+0x16d/0x1b0
[ 717.195639][ C1] ? mark_lock+0x9a/0x350
[ 717.195656][ C1] ? __pfx_validate_chain+0x10/0x10
[ 717.195677][ C1] ? __lock_acquire+0x1346/0x1fd0
[ 717.195700][ C1] ? mark_lock+0x9a/0x350
[ 717.195719][ C1] ? __lock_acquire+0x1346/0x1fd0
[ 717.195744][ C1] netlink_rcv_skb+0x1e3/0x430
[ 717.195767][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 717.195788][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10
[ 717.195819][ C1] ? netlink_deliver_tap+0x2e/0x1b0
[ 717.195842][ C1] netlink_unicast+0x7ea/0x980
[ 717.195865][ C1] ? __pfx_netlink_unicast+0x10/0x10
[ 717.195883][ C1] ? __virt_addr_valid+0x183/0x520
[ 717.195911][ C1] ? __check_object_size+0x49c/0x900
[ 717.195927][ C1] ? bpf_lsm_netlink_send+0x9/0x10
[ 717.195953][ C1] netlink_sendmsg+0x8db/0xcb0
[ 717.195981][ C1] ? __pfx_netlink_sendmsg+0x10/0x10
[ 717.196004][ C1] ? __import_iovec+0x536/0x820
[ 717.196026][ C1] ? aa_sock_msg_perm+0x91/0x160
[ 717.196045][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10
[ 717.196060][ C1] ? security_socket_sendmsg+0x87/0xb0
[ 717.196085][ C1] ? __pfx_netlink_sendmsg+0x10/0x10
[ 717.196106][ C1] __sock_sendmsg+0x221/0x270
[ 717.196129][ C1] ____sys_sendmsg+0x525/0x7d0
[ 717.196150][ C1] ? __pfx_____sys_sendmsg+0x10/0x10
[ 717.196179][ C1] __sys_sendmsg+0x2b0/0x3a0
[ 717.196197][ C1] ? __pfx___sys_sendmsg+0x10/0x10
[ 717.196228][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 717.196249][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 717.196277][ C1] ? exc_page_fault+0x590/0x8c0
[ 717.196299][ C1] ? do_syscall_64+0xb6/0x230
[ 717.196315][ C1] do_syscall_64+0xf3/0x230
[ 717.196330][ C1] ? clear_bhb_loop+0x35/0x90
[ 717.196348][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 717.196364][ C1] RIP: 0033:0x7f3b88beedf9
[ 717.196383][ 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
[ 717.196394][ C1] RSP: 002b:00007ffd9a223988 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 717.196409][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3b88beedf9
[ 717.196419][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003
[ 717.196428][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006
[ 717.196436][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 717.196445][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[ 717.196461][ C1]
[ 717.196467][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.303 msecs
[ 717.862358][ T30] Kernel panic - not syncing: hung_task: blocked tasks
[ 717.869230][ T30] CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0
[ 717.879151][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 717.889222][ T30] Call Trace:
[ 717.892503][ T30]
[ 717.895437][ T30] dump_stack_lvl+0x241/0x360
[ 717.900126][ T30] ? __pfx_dump_stack_lvl+0x10/0x10
[ 717.905338][ T30] ? __pfx__printk+0x10/0x10
[ 717.909942][ T30] ? vscnprintf+0x5d/0x90
[ 717.914372][ T30] panic+0x349/0x860
[ 717.918288][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320
[ 717.924453][ T30] ? __pfx_panic+0x10/0x10
[ 717.928878][ T30] ? tick_nohz_tick_stopped+0x82/0xb0
[ 717.934264][ T30] ? __irq_work_queue_local+0x137/0x410
[ 717.939813][ T30] ? preempt_schedule_thunk+0x1a/0x30
[ 717.945186][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320
[ 717.951343][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320
[ 717.957530][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320
[ 717.963691][ T30] watchdog+0x101d/0x1020
[ 717.968029][ T30] ? watchdog+0x1ea/0x1020
[ 717.972458][ T30] ? __pfx_watchdog+0x10/0x10
[ 717.977143][ T30] kthread+0x2f0/0x390
[ 717.981221][ T30] ? __pfx_watchdog+0x10/0x10
[ 717.985905][ T30] ? __pfx_kthread+0x10/0x10
[ 717.990510][ T30] ret_from_fork+0x4b/0x80
[ 717.994936][ T30] ? __pfx_kthread+0x10/0x10
[ 717.999566][ T30] ret_from_fork_asm+0x1a/0x30
[ 718.004349][ T30]
[ 718.007739][ T30] Kernel Offset: disabled
[ 718.012071][ T30] Rebooting in 86400 seconds..