------------[ cut here ]------------
WARNING: CPU: 0 PID: 1203 at net/ipv6/xfrm6_tunnel.c:341 xfrm6_tunnel_net_exit+0x7e/0x100 net/ipv6/xfrm6_tunnel.c:341
Modules linked in:
CPU: 0 UID: 0 PID: 1203 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: netns cleanup_net
RIP: 0010:xfrm6_tunnel_net_exit+0x7e/0x100 net/ipv6/xfrm6_tunnel.c:341
Code: 58 6f 96 f8 4b 83 3c 2c 00 75 19 e8 7c b0 34 f8 49 81 fd f8 07 00 00 74 1d e8 6e b0 34 f8 49 83 c5 08 eb c9 e8 63 b0 34 f8 90 <0f> 0b 90 49 81 fd f8 07 00 00 75 e3 48 81 c3 00 08 00 00 45 31 f6
RSP: 0018:ffffc900050ff890 EFLAGS: 00010293
RAX: ffffffff8989fced RBX: ffff8880334d8000 RCX: ffff8880267c5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900050ff990 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1dac84f R12: ffff8880334d8000
R13: 0000000000000050 R14: ffff88803dd2a8c0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126df7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e5cfecf98 CR3: 000000004fa02000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ops_exit_list net/core/net_namespace.c:199 [inline]
 ops_undo_list+0x49a/0x990 net/core/net_namespace.c:252
 cleanup_net+0x4de/0x820 net/core/net_namespace.c:695
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>