Warning: Permanently added '10.128.0.202' (ED25519) to the list of known hosts. executing program [ 572.690741][ T30] INFO: task kworker/u8:10:3871 blocked for more than 143 seconds. [ 572.698806][ T30] Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 [ 572.707174][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 572.716076][ T30] task:kworker/u8:10 state:D stack:19928 pid:3871 tgid:3871 ppid:2 flags:0x00004000 [ 572.726473][ T30] Workqueue: ipv6_addrconf addrconf_verify_work [ 572.732946][ T30] Call Trace: [ 572.736241][ T30] [ 572.739188][ T30] __schedule+0x17e8/0x4a20 [ 572.744048][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 572.749722][ T30] ? __pfx___schedule+0x10/0x10 [ 572.754837][ T30] ? __pfx_lock_release+0x10/0x10 [ 572.759894][ T30] ? __mutex_trylock_common+0x92/0x2e0 [ 572.765647][ T30] ? kthread_data+0x52/0xd0 [ 572.770178][ T30] ? schedule+0x90/0x320 [ 572.774854][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 572.780738][ T30] ? wq_worker_sleeping+0x66/0x240 [ 572.785875][ T30] ? schedule+0x90/0x320 [ 572.790137][ T30] schedule+0x14b/0x320 [ 572.794736][ T30] schedule_preempt_disabled+0x13/0x30 [ 572.800231][ T30] __mutex_lock+0x6a4/0xd70 [ 572.804997][ T30] ? __mutex_lock+0x527/0xd70 [ 572.809701][ T30] ? addrconf_verify_work+0x19/0x30 [ 572.815710][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 572.820958][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 572.826969][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 572.833579][ T30] ? process_scheduled_works+0x945/0x1830 [ 572.839320][ T30] addrconf_verify_work+0x19/0x30 [ 572.844617][ T30] process_scheduled_works+0xa2e/0x1830 [ 572.850226][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 572.856521][ T30] ? assign_work+0x364/0x3d0 [ 572.861334][ T30] worker_thread+0x86d/0xd70 [ 572.865970][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 572.871933][ T30] ? __kthread_parkme+0x169/0x1d0 [ 572.876977][ T30] ? __pfx_worker_thread+0x10/0x10 [ 572.882498][ T30] kthread+0x2f2/0x390 [ 572.886600][ T30] ? __pfx_worker_thread+0x10/0x10 [ 572.891953][ T30] ? __pfx_kthread+0x10/0x10 [ 572.896574][ T30] ret_from_fork+0x4d/0x80 [ 572.901255][ T30] ? __pfx_kthread+0x10/0x10 [ 572.905874][ T30] ret_from_fork_asm+0x1a/0x30 [ 572.920570][ T30] [ 572.923621][ T30] [ 572.923621][ T30] Showing all locks held in the system: [ 572.940531][ T30] 1 lock held by khungtaskd/30: [ 572.945391][ T30] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 572.970503][ T30] 6 locks held by kworker/1:2/782: [ 572.975648][ T30] 3 locks held by kworker/u8:10/3871: [ 572.990501][ T30] #0: ffff88802a11b948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 573.010516][ T30] #1: ffffc9000b8e7d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 573.040527][ T30] #2: ffffffff8f5e7a08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 [ 573.050111][ T30] 2 locks held by getty/4847: [ 573.070513][ T30] #0: ffff88802ac910a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 573.080355][ T30] #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 573.110505][ T30] 3 locks held by syz-executor410/5109: [ 573.116063][ T30] [ 573.118387][ T30] ============================================= [ 573.118387][ T30] [ 573.150511][ T30] NMI backtrace for cpu 0 [ 573.154849][ T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 [ 573.164747][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 573.174804][ T30] Call Trace: [ 573.178086][ T30] [ 573.181022][ T30] dump_stack_lvl+0x241/0x360 [ 573.185724][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 573.190936][ T30] ? __pfx__printk+0x10/0x10 [ 573.195533][ T30] ? vprintk_emit+0x631/0x770 [ 573.200230][ T30] ? __pfx_vprintk_emit+0x10/0x10 [ 573.205280][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 573.210248][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 573.215813][ T30] ? _printk+0xd5/0x120 [ 573.219978][ T30] ? __pfx__printk+0x10/0x10 [ 573.224581][ T30] ? __wake_up_klogd+0xcc/0x110 [ 573.229454][ T30] ? __pfx__printk+0x10/0x10 [ 573.234055][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.239718][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 573.244778][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 573.250775][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 573.256781][ T30] watchdog+0xfde/0x1020 [ 573.261134][ T30] ? watchdog+0x1ea/0x1020 [ 573.265570][ T30] ? __pfx_watchdog+0x10/0x10 [ 573.270257][ T30] kthread+0x2f2/0x390 [ 573.274341][ T30] ? __pfx_watchdog+0x10/0x10 [ 573.279029][ T30] ? __pfx_kthread+0x10/0x10 [ 573.283635][ T30] ret_from_fork+0x4d/0x80 [ 573.288068][ T30] ? __pfx_kthread+0x10/0x10 [ 573.292677][ T30] ret_from_fork_asm+0x1a/0x30 [ 573.297478][ T30] [ 573.300619][ T30] Sending NMI from CPU 0 to CPUs 1: [ 573.305916][ C1] NMI backtrace for cpu 1 [ 573.305928][ C1] CPU: 1 PID: 5109 Comm: syz-executor410 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 [ 573.305951][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 573.305963][ C1] RIP: 0010:check_preemption_disabled+0x19/0x120 [ 573.305997][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 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 7c 1f 7d 74 65 8b 05 71 1f 7d 74 a9 ff ff ff 7f 74 26 65 [ 573.306014][ C1] RSP: 0018:ffffc9000309e568 EFLAGS: 00000082 [ 573.306033][ C1] RAX: 829d0309df8ed900 RBX: ffffc9000309e600 RCX: 0000000000000001 [ 573.306048][ C1] RDX: dffffc0000000000 RSI: ffffffff8bcacd00 RDI: ffffffff8c1ff840 [ 573.306065][ C1] RBP: ffffc9000309e6e8 R08: ffffffff92fab587 R09: 1ffffffff25f56b0 [ 573.306081][ C1] R10: dffffc0000000000 R11: fffffbfff25f56b1 R12: 1ffff92000613cbc [ 573.306097][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000246 [ 573.306115][ C1] FS: 0000555575284380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 573.306134][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 573.306149][ C1] CR2: 00007f3efdebf580 CR3: 000000002211a000 CR4: 0000000000350ef0 [ 573.306166][ C1] Call Trace: [ 573.306176][ C1] [ 573.306184][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 573.306216][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 573.306242][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 573.306285][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 573.306312][ C1] ? nmi_handle+0x151/0x5a0 [ 573.306350][ C1] ? nmi_handle+0x2a/0x5a0 [ 573.306385][ C1] ? check_preemption_disabled+0x19/0x120 [ 573.306413][ C1] ? default_do_nmi+0x63/0x160 [ 573.306446][ C1] ? exc_nmi+0x123/0x1f0 [ 573.306477][ C1] ? end_repeat_nmi+0xf/0x53 [ 573.306513][ C1] ? check_preemption_disabled+0x19/0x120 [ 573.306542][ C1] ? check_preemption_disabled+0x19/0x120 [ 573.306571][ C1] ? check_preemption_disabled+0x19/0x120 [ 573.306600][ C1] [ 573.306607][ C1] [ 573.306614][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.306648][ C1] lock_acquire+0x1fd/0x550 [ 573.306671][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.306705][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 573.306728][ C1] ? tcf_idr_check_alloc+0x110/0x900 [ 573.306764][ C1] ? __pfx_lock_release+0x10/0x10 [ 573.306788][ C1] ? radix_tree_lookup+0xa6/0x290 [ 573.306822][ C1] ? radix_tree_lookup+0xab/0x290 [ 573.306855][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.306888][ C1] ? tcf_idr_check_alloc+0x110/0x900 [ 573.306922][ C1] tcf_idr_check_alloc+0x12d/0x900 [ 573.306955][ C1] ? tcf_idr_check_alloc+0x110/0x900 [ 573.306993][ C1] ? __pfx_tcf_idr_check_alloc+0x10/0x10 [ 573.307029][ C1] ? __nla_parse+0x40/0x60 [ 573.307062][ C1] tcf_police_init+0x29b/0x17c0 [ 573.307084][ C1] ? __sock_sendmsg+0x223/0x270 [ 573.307113][ C1] ? ____sys_sendmsg+0x525/0x7d0 [ 573.307144][ C1] ? __pfx_tcf_police_init+0x10/0x10 [ 573.307182][ C1] ? nla_memcpy+0x5d/0xc0 [ 573.307211][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.307242][ C1] ? __asan_memcpy+0x40/0x70 [ 573.307266][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.307297][ C1] ? __pfx_tcf_police_init+0x10/0x10 [ 573.307320][ C1] tcf_action_init_1+0x5d9/0x890 [ 573.307351][ C1] ? __pfx_tcf_action_init_1+0x10/0x10 [ 573.307385][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.307418][ C1] ? tcf_action_fill_size+0x1e/0x2d0 [ 573.307441][ C1] tcf_action_init+0x2e4/0x940 [ 573.307471][ C1] ? __pfx_tcf_action_init+0x10/0x10 [ 573.307527][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.307557][ C1] ? apparmor_capable+0x138/0x1b0 [ 573.307593][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.307626][ C1] tc_ctl_action+0x47d/0xcf0 [ 573.307649][ C1] ? is_bpf_text_address+0x26/0x2a0 [ 573.307681][ C1] ? __pfx_tc_ctl_action+0x10/0x10 [ 573.307720][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.307750][ C1] ? trace_contention_end+0x3c/0x120 [ 573.307780][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.307810][ C1] ? __mutex_lock+0x2ef/0xd70 [ 573.307839][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 573.307863][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.307898][ C1] ? __pfx_tc_ctl_action+0x10/0x10 [ 573.307920][ C1] rtnetlink_rcv_msg+0x89d/0x1180 [ 573.307953][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 573.307983][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 573.308011][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 573.308038][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308070][ C1] ? __pfx_validate_chain+0x10/0x10 [ 573.308097][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308129][ C1] ? __pfx_validate_chain+0x10/0x10 [ 573.308157][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308188][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 573.308229][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308259][ C1] ? mark_lock+0x9a/0x350 [ 573.308284][ C1] ? __pfx_validate_chain+0x10/0x10 [ 573.308313][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308348][ C1] ? __lock_acquire+0x1346/0x1fd0 [ 573.308380][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308411][ C1] ? mark_lock+0x9a/0x350 [ 573.308438][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308468][ C1] ? __lock_acquire+0x1346/0x1fd0 [ 573.308504][ C1] netlink_rcv_skb+0x1e5/0x430 [ 573.308531][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 573.308561][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 573.308600][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 573.308626][ C1] netlink_unicast+0x7ec/0x980 [ 573.308654][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 573.308675][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308706][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308737][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308768][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308798][ C1] ? __check_object_size+0x49c/0x900 [ 573.308832][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308862][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308895][ C1] netlink_sendmsg+0x8db/0xcb0 [ 573.308929][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 573.308957][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.308987][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 573.309013][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.309043][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.309074][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 573.309109][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 573.309134][ C1] __sock_sendmsg+0x223/0x270 [ 573.309165][ C1] ____sys_sendmsg+0x525/0x7d0 [ 573.309188][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.309224][ C1] ? __pfx_____sys_sendmsg+0x10/0x10 [ 573.309257][ C1] __sys_sendmsg+0x2b0/0x3a0 [ 573.309282][ C1] ? __pfx___sys_sendmsg+0x10/0x10 [ 573.309323][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.309358][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 573.309388][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 573.309412][ C1] ? exc_page_fault+0x590/0x8c0 [ 573.309434][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 573.309468][ C1] ? do_syscall_64+0xb6/0x230 [ 573.309496][ C1] do_syscall_64+0xf3/0x230 [ 573.309525][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 573.309553][ C1] RIP: 0033:0x7f95af58fdf9 [ 573.309571][ 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 [ 573.309588][ C1] RSP: 002b:00007ffe2acb1ab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 573.309609][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f95af58fdf9 [ 573.309624][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 573.309637][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 573.309650][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 573.309663][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 573.309686][ C1] [ 573.309695][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 3.778 msecs [ 574.095112][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 574.101965][ T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 [ 574.111860][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 574.121916][ T30] Call Trace: [ 574.125194][ T30] [ 574.128130][ T30] dump_stack_lvl+0x241/0x360 [ 574.132835][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 574.138048][ T30] ? __pfx__printk+0x10/0x10 [ 574.142650][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 574.148648][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 574.154302][ T30] ? vscnprintf+0x5d/0x90 [ 574.158657][ T30] panic+0x349/0x860 [ 574.162561][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 574.168241][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 574.174419][ T30] ? __pfx_panic+0x10/0x10 [ 574.178843][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 574.184260][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 574.189909][ T30] ? __irq_work_queue_local+0x137/0x410 [ 574.195466][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 574.201138][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 574.206525][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 574.212700][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 574.218878][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 574.224529][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 574.230730][ T30] watchdog+0x101d/0x1020 [ 574.235076][ T30] ? watchdog+0x1ea/0x1020 [ 574.239515][ T30] ? __pfx_watchdog+0x10/0x10 [ 574.244206][ T30] kthread+0x2f2/0x390 [ 574.248298][ T30] ? __pfx_watchdog+0x10/0x10 [ 574.252996][ T30] ? __pfx_kthread+0x10/0x10 [ 574.257610][ T30] ret_from_fork+0x4d/0x80 [ 574.262055][ T30] ? __pfx_kthread+0x10/0x10 [ 574.266695][ T30] ret_from_fork_asm+0x1a/0x30 [ 574.271518][ T30] [ 574.274750][ T30] Kernel Offset: disabled [ 574.279069][ T30] Rebooting in 86400 seconds..