INFO: task kworker/1:1:7720 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:30696 pid:7720 tgid:7720 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1821/0x5740 kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x164/0x360 kernel/sched/core.c:7283 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340 kthread+0x260/0x470 kernel/kthread.c:420 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Showing all locks held in the system: 1 lock held by kworker/R-rcu_g/4: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x2e/0x3a0 kernel/workqueue.c:2729 1 lock held by kworker/R-mm_pe/14: 8 locks held by kworker/1:0/24: 1 lock held by khungtaskd/30: #0: ffffffff8e95cce0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline] #0: ffffffff8e95cce0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e95cce0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775 4 locks held by kworker/u8:3/48: #0: ffff88801be86140 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff88801be86140 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3397 #1: ffffc90000b87c40 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3290 [inline] #1: ffffc90000b87c40 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3397 #2: ffffffff8fdb9128 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf4/0x800 net/core/net_namespace.c:673 #3: ffff8880786c5590 (&wg->device_update_lock){+.+.}-{4:4}, at: wg_destruct+0x116/0x310 drivers/net/wireguard/device.c:249 1 lock held by kworker/R-mld/3199: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x2e/0x3a0 kernel/workqueue.c:2729 2 locks held by getty/5386: #0: ffff8880368500a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000323b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0 drivers/tty/n_tty.c:2211 2 locks held by kworker/1:3/5642: 3 locks held by kworker/0:4/5730: #0: ffff88813fe43140 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff88813fe43140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3397 #1: ffffc900050a7c40 (rx_mode_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3290 [inline] #1: ffffc900050a7c40 (rx_mode_work){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3397 #2: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: netdev_rx_mode_work+0x19/0x3c0 net/core/dev_addr_lists.c:1312 2 locks held by kworker/1:5/5760: 2 locks held by kworker/1:6/5762: 3 locks held by kworker/u8:10/5928: #0: ffff88801ae84140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff88801ae84140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3397 #1: ffffc9000577fc40 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3290 [inline] #1: ffffc9000577fc40 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3397 #2: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: idle_cull_fn+0xd2/0x740 kernel/workqueue.c:3011 1 lock held by kworker/R-wg-cr/17923: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x105b/0x1130 kernel/workqueue.c:3664 1 lock held by kworker/0:3/19086: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x2e/0x3a0 kernel/workqueue.c:2729 1 lock held by kworker/1:2/20446: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x2e/0x3a0 kernel/workqueue.c:2729 2 locks held by kworker/1:7/20447: 3 locks held by kworker/1:8/20449: 2 locks held by kworker/1:9/20450: 4 locks held by kworker/0:10/20453: #0: ffff888034758540 ((wq_completion)wg-kex-wg1#24){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff888034758540 ((wq_completion)wg-kex-wg1#24){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3397 #1: ffffc90005437c40 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3290 [inline] #1: ffffc90005437c40 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3397 #2: ffff8880341853c0 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x1a1/0x9a0 drivers/net/wireguard/noise.c:598 #3: ffff88805335c888 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x58b/0x9a0 drivers/net/wireguard/noise.c:632 1 lock held by kworker/u9:0/27778: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x2e/0x3a0 kernel/workqueue.c:2729 3 locks held by kworker/u8:2/3826: #0: ffff88801ae84140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff88801ae84140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3397 #1: ffffc90004f6fc40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3290 [inline] #1: ffffc90004f6fc40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3397 #2: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:313 1 lock held by kworker/R-wg-cr/6430: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2787 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xc4d/0x1130 kernel/workqueue.c:3649 1 lock held by kworker/R-wg-cr/6431: 1 lock held by kworker/R-wg-cr/6432: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2787 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xc4d/0x1130 kernel/workqueue.c:3649 5 locks held by kworker/u8:24/7415: 3 locks held by kworker/u8:29/7420: #0: ffff8880320f4940 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff8880320f4940 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3397 #1: ffffc900064efc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3290 [inline] #1: ffffc900064efc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3397 #2: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #2: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x11e/0x14c0 net/ipv6/addrconf.c:4206 1 lock held by syz-executor/7729: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978 1 lock held by syz-executor/7762: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978 1 lock held by syz-executor/7769: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978 1 lock held by kworker/R-bond0/7793: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7797: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7798: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7799: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-bond0/7800: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7805: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7806: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7807: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-bond0/7808: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-bond0/7813: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7814: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7816: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7818: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-bond0/7820: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7823: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7824: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7825: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7826: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7827: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 1 lock held by kworker/R-wg-cr/7829: #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: set_pf_worker kernel/workqueue.c:3403 [inline] #0: ffffffff8e7faf40 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x81/0x1130 kernel/workqueue.c:3586 2 locks held by syz.7.9051/7955: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:634 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0 drivers/net/tun.c:3441 #1: ffffffff8e7eb690 (cpu_hotplug_lock){++++}-{0:0}, at: flush_all_backlogs net/core/dev.c:6576 [inline] #1: ffffffff8e7eb690 (cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0xc7f/0x22c0 net/core/dev.c:12400 2 locks held by syz.6.9055/7979: #0: ffffffff8fe37748 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1217 #1: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: nl80211_pre_doit+0x5e/0x8a0 net/wireless/nl80211.c:18897 1 lock held by syz-executor/7985: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978 1 lock held by syz-executor/7993: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978 1 lock held by syz-executor/7998: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978 1 lock held by syz-executor/8008: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978 1 lock held by syz-executor/8016: #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fdc7e00 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline] watchdog+0xfd3/0x1030 kernel/hung_task.c:561 kthread+0x389/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 20449 Comm: kworker/1:8 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker RIP: 0010:hlock_class kernel/locking/lockdep.c:246 [inline] RIP: 0010:mark_lock+0x45/0x190 kernel/locking/lockdep.c:4731 Code: 00 00 83 db 00 83 fa 08 0f 45 da bd 01 00 00 00 89 d9 d3 e5 25 ff 1f 00 00 48 0f a3 05 a4 ff 9d 12 73 10 48 69 c0 c8 00 00 00 <48> 8d 88 70 f3 e0 93 eb 42 83 3d 6b 8f a1 18 00 74 04 31 c9 eb 35 RSP: 0018:ffffc90000a07140 EFLAGS: 00000006 RAX: 0000000000005aa0 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88802b3c4aa8 RDI: ffff88802b3c3e00 RBP: 0000000000000001 R08: ffffffff81b27ffa R09: ffff8880b8728298 R10: dffffc0000000000 R11: fffffbfff206041f R12: 0000000000000002 R13: ffff88802b3c4aa8 R14: ffff88802b3c3e00 R15: 0000000000000006 FS: 0000000000000000(0000) GS:ffff88812539e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2f1767 CR3: 000000000e74a000 CR4: 00000000003526f0 Call Trace: mark_usage kernel/locking/lockdep.c:4639 [inline] __lock_acquire+0x661/0x2cf0 kernel/locking/lockdep.c:5191 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock_irq+0x3d/0x50 kernel/locking/spinlock.c:174 __run_hrtimer kernel/time/hrtimer.c:1934 [inline] __hrtimer_run_queues+0x46a/0xa20 kernel/time/hrtimer.c:1994 hrtimer_interrupt+0x44b/0x950 kernel/time/hrtimer.c:2113 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1067 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:eth_skb_pkt_type include/linux/etherdevice.h:628 [inline] RIP: 0010:eth_type_trans+0x233/0x7e0 net/ethernet/eth.c:165 Code: 36 0f b6 04 2b 84 c0 0f 85 eb 02 00 00 48 8b 44 24 20 0f b7 00 49 01 c6 49 8d 9d b0 04 00 00 48 89 d8 48 c1 e8 03 80 3c 28 00 <74> 08 48 89 df e8 73 a6 93 f8 4c 8b 23 4c 89 f0 48 c1 e8 03 80 3c RSP: 0018:ffffc90000a07658 EFLAGS: 00000246 RAX: 1ffff110102fc896 RBX: ffff8880817e44b0 RCX: ffff88802b3c3e00 RDX: 0000000000000100 RSI: 0000000000000002 RDI: 000000000000ffff RBP: dffffc0000000000 R08: ffffffff86877d20 R09: ffffffff8e95cce0 R10: dffffc0000000000 R11: ffffffff86877cc0 R12: 0000000000000046 R13: ffff8880817e4000 R14: ffff888022f05382 R15: ffff888022f05390 __dev_forward_skb2+0x2c9/0x740 net/core/dev.c:2443 veth_forward_skb drivers/net/veth.c:323 [inline] veth_xmit+0x469/0xdb0 drivers/net/veth.c:379 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] br_dev_queue_push_xmit+0x370/0x4b0 net/bridge/br_forward.c:53 NF_HOOK+0x64e/0x6e0 include/linux/netfilter.h:318 br_nf_post_routing+0xb66/0xfe0 net/bridge/br_netfilter_hooks.c:964 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook include/linux/netfilter.h:273 [inline] NF_HOOK+0x23e/0x3f0 include/linux/netfilter.h:316 br_forward_finish+0xd3/0x130 net/bridge/br_forward.c:66 br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:1165 [inline] br_nf_forward_finish+0xa5e/0xe90 net/bridge/br_netfilter_hooks.c:667 NF_HOOK+0x64e/0x6e0 include/linux/netfilter.h:318 br_nf_forward_ip+0x7ef/0xa30 net/bridge/br_netfilter_hooks.c:721 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook include/linux/netfilter.h:273 [inline] NF_HOOK+0x23e/0x3f0 include/linux/netfilter.h:316 __br_forward+0x397/0x540 net/bridge/br_forward.c:115 br_handle_frame_finish+0x1521/0x1c80 net/bridge/br_input.c:229 br_nf_hook_thresh+0x3dd/0x4c0 net/bridge/br_netfilter_hooks.c:-1 br_nf_pre_routing_finish_ipv6+0x91f/0xc30 net/bridge/br_netfilter_ipv6.c:-1 NF_HOOK include/linux/netfilter.h:318 [inline] br_nf_pre_routing_ipv6+0x374/0x6f0 net/bridge/br_netfilter_ipv6.c:183 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_bridge_pre net/bridge/br_input.c:291 [inline] br_handle_frame+0x1277/0x1510 net/bridge/br_input.c:442 __netif_receive_skb_core+0x98f/0x3170 net/core/dev.c:6089 __netif_receive_skb_one_core net/core/dev.c:6200 [inline] __netif_receive_skb net/core/dev.c:6315 [inline] process_backlog+0x76d/0x1950 net/core/dev.c:6666 __napi_poll+0xae/0x340 net/core/dev.c:7733 napi_poll net/core/dev.c:7796 [inline] net_rx_action+0x627/0xf70 net/core/dev.c:7953 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 do_softirq+0x76/0xd0 kernel/softirq.c:523 __local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:377 [inline] wg_packet_encrypt_worker+0x2d2/0x1740 drivers/net/wireguard/send.c:293 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3478 kthread+0x389/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 net_ratelimit: 3816 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)