------------[ cut here ]------------
WARNING: net/xfrm/xfrm_state.c:3306 at xfrm_state_fini+0x26d/0x2f0, CPU#0: kworker/u8:0/12
Modules linked in:
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:xfrm_state_fini+0x26d/0x2f0
Code: c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 8b c9 f6 f7 48 8b 3b 5b 41 5c 41 5d 41 5e 41 5f 5d e9 79 ba d6 f7 e8 d4 27 91 f7 90 <0f> 0b 90 e9 fd fd ff ff e8 c6 27 91 f7 90 0f 0b 90 e9 60 fe ff ff
RSP: 0018:ffffc900000f7878 EFLAGS: 00010293
RAX: ffffffff8a2f334c RBX: ffff888021f60000 RCX: ffff88801ce95700
RDX: 0000000000000000 RSI: ffffffff8dd8dd0e RDI: ffff88801ce95700
RBP: ffffc900000f7990 R08: ffffffff8fc35877 R09: 1ffffffff1f86b0e
R10: dffffc0000000000 R11: fffffbfff1f86b0f R12: ffffffff8f838640
R13: 1ffff9200001ef3c R14: ffff888021f614c0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b83fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f733a4e000 CR3: 000000010a504000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 xfrm_net_exit+0x2d/0x70
 ops_undo_list+0x49a/0x990
 cleanup_net+0x4d8/0x820
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
