------------[ cut here ]------------
WARNING: CPU: 0 PID: 36 at net/ipv6/xfrm6_tunnel.c:341 xfrm6_tunnel_net_exit+0x90/0xd0 net/ipv6/xfrm6_tunnel.c:341
Modules linked in:
CPU: 0 UID: 0 PID: 36 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: netns cleanup_net
RIP: 0010:xfrm6_tunnel_net_exit+0x90/0xd0 net/ipv6/xfrm6_tunnel.c:341
Code: df 31 f6 31 d2 b9 01 00 00 00 e8 8b 92 f6 ff e8 56 99 f6 ff 4b 83 3c e7 00 75 0e 49 ff c4 49 81 fc 00 01 00 00 75 ed eb 06 90 <0f> 0b 90 eb ec 31 c0 49 83 bc c7 00 08 00 00 00 75 0d 48 ff c0 48
RSP: 0018:ffffc90000137d28 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88810af34f80 RCX: d89a4dc3c848b700
RDX: dd0480f76140c1ee RSI: ffffffff83063d02 RDI: ffff888101e851c0
RBP: ffffc90000137db8 R08: 0000000000080000 R09: 000000000000004a
R10: 0000000000000000 R11: ffffffff826370f0 R12: 000000000000007e
R13: ffffffff835d2f80 R14: ffffffff82637111 R15: ffff88810ab30000
FS:  0000000000000000(0000) GS:ffff8882b3b3e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fab146aae9c CR3: 00000001063b4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ops_exit_list net/core/net_namespace.c:200 [inline]
 ops_undo_list+0x143/0x220 net/core/net_namespace.c:253
 cleanup_net+0x22c/0x380 net/core/net_namespace.c:686
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0x311/0x6b0 kernel/workqueue.c:3321
 worker_thread+0x1df/0x2f0 kernel/workqueue.c:3402
 kthread+0x23c/0x270 kernel/kthread.c:464
 ret_from_fork+0x9c/0x1b0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>