ip6_tunnel: ip6gre1 xmit: Local address not yet configured!
ip6_tunnel: ip6gre1 xmit: Local address not yet configured!
ip6_tunnel: ip6gre1 xmit: Local address not yet configured!
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P15866/1:b.el
rcu: 	(detected by 1, t=10502 jiffies, g=66641, q=1923 ncpus=2)
task:kworker/0:1     state:R  running task     stack:22328 pid:15866 tgid:15866 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_power_efficient gc_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x8b0 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rcu_preempt_read_exit kernel/rcu/tree_plugin.h:396 [inline]
RIP: 0010:__rcu_read_unlock+0x32/0xe0 kernel/rcu/tree_plugin.h:435
Code: 41 55 41 54 53 49 bf 00 00 00 00 00 fc ff df 65 48 8b 3d 49 9c 8c 11 48 8d 9f c4 04 00 00 49 89 dc 49 c1 ec 03 43 0f b6 04 3c <84> c0 75 4f ff 0b 75 1d 4c 8d b7 c8 04 00 00 4c 89 f0 48 c1 e8 03
RSP: 0018:ffffc90003c5f950 EFLAGS: 00000a03
RAX: 0000000000000000 RBX: ffff88802ebae1c4 RCX: 0000000000000046
RDX: 0000000000000002 RSI: ffffffff8e216082 RDI: ffff88802ebadd00
RBP: ffffc90003c5fad0 R08: ffffffff903022f7 R09: 1ffffffff206045e
R10: dffffc0000000000 R11: fffffbfff206045f R12: 1ffff11005d75c38
R13: ffffffff9a93e8c0 R14: 0000000000000001 R15: dffffc0000000000
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 gc_worker+0xb51/0x1290 net/netfilter/nf_conntrack_core.c:1621
 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
 </TASK>
rcu: rcu_preempt kthread starved for 5013 jiffies! g66641 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:26880 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 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_timeout+0x158/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x312/0x11d0 kernel/rcu/tree.c:2095
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
 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
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 1120 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: netns cleanup_net
RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline]
RIP: 0010:smp_call_function_single+0x39f/0x5b0 kernel/smp.c:702
Code: 27 44 89 e6 83 e6 01 31 ff e8 5d 20 0c 00 41 83 e4 01 75 11 e8 12 1c 0c 00 4d 89 ec eb 41 e8 08 1c 0c 00 eb 3a 4d 89 ec f3 90 <42> 0f b6 04 33 84 c0 75 10 41 f7 07 01 00 00 00 74 1e e8 ea 1b 0c
RSP: 0018:ffffc90005677520 EFLAGS: 00000293
RAX: ffffffff81b99be6 RBX: 1ffff92000aceeb1 RCX: ffff8880293e9f00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90005677618 R08: ffffffff903022f7 R09: 1ffffffff206045e
R10: dffffc0000000000 R11: ffffffff81745300 R12: 1ffff92000aceeac
R13: 1ffff92000aceeac R14: dffffc0000000000 R15: ffffc90005677588
FS:  0000000000000000(0000) GS:ffff88812539e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd8e9788080 CR3: 0000000063d52000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rcu_barrier+0x360/0x580 kernel/rcu/tree.c:3880
 wg_destruct+0x21e/0x310 drivers/net/wireguard/device.c:261
 netdev_run_todo+0xc1f/0xde0 net/core/dev.c:11723
 default_device_exit_batch+0x967/0x9e0 net/core/dev.c:13077
 ops_exit_list net/core/net_namespace.c:205 [inline]
 ops_undo_list+0x52b/0x940 net/core/net_namespace.c:252
 cleanup_net+0x56b/0x800 net/core/net_namespace.c:702
 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
 </TASK>