tipc: TX() has been purged, node left!
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WARNING: CPU: 1 PID: 260 at kernel/softirq.c:175 __local_bh_enable_ip+0xdf/0x100 kernel/softirq.c:175
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 260 Comm: kworker/u4:3 Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x16e/0x25d lib/dump_stack.c:118
 panic+0x20c/0x69a kernel/panic.c:231
 __warn+0x211/0x240 kernel/panic.c:600
 report_bug+0x153/0x1d0 lib/bug.c:198
 handle_bug+0x4d/0x90 arch/x86/kernel/traps.c:235
 exc_invalid_op+0x16/0x70 arch/x86/kernel/traps.c:255
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:__local_bh_enable_ip+0xdf/0x100 kernel/softirq.c:175
Code: 00 00 65 8b 05 ae cd cf 7e 85 c0 75 05 e8 10 ae ce ff 5b 41 5e c3 0f 0b 83 3d 80 f2 2f 07 00 0f 85 49 ff ff ff e9 53 ff ff ff <0f> 0b e9 4c ff ff ff e8 15 00 00 00 eb aa 0f 0b 0f 0b 0f 1f 44 00
RSP: 0018:ffffc90000df7b20 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000201 RCX: 000000000000021b
RDX: 0000ffff880ba7b0 RSI: 0000000000000201 RDI: ffffffff856fee1f
RBP: ffff88812c02ea80 R08: 0000000000000000 R09: 0000ffff880ba7b7
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88811feb7568
R13: ffff88811feb7000 R14: ffffffff856fee1f R15: 0000000000000000
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline]
 _raw_spin_unlock_bh+0x2c/0x30 kernel/locking/spinlock.c:207
 spin_unlock_bh include/linux/spinlock.h:399 [inline]
 rt_flush_dev+0x14f/0x1a0 net/ipv4/route.c:1550
 fib_netdev_event+0x1a3/0x6c0 net/ipv4/fib_frontend.c:1454
 notifier_call_chain kernel/notifier.c:83 [inline]
 __raw_notifier_call_chain kernel/notifier.c:361 [inline]
 raw_notifier_call_chain+0x53/0xb0 kernel/notifier.c:368
 call_netdevice_notifiers_info net/core/dev.c:2027 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 rollback_registered_many+0x74f/0xce0 net/core/dev.c:8969
 unregister_netdevice_many net/core/dev.c:10114 [inline]
 default_device_exit_batch+0x260/0x3f0 net/core/dev.c:10597
 ops_exit_list net/core/net_namespace.c:189 [inline]
 cleanup_net+0x53c/0x7d0 net/core/net_namespace.c:603
 process_one_work+0x46d/0x920 kernel/workqueue.c:2269
 worker_thread+0x665/0xbe0 kernel/workqueue.c:2415
 kthread+0x216/0x230 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Kernel Offset: disabled
Rebooting in 86400 seconds..