netdevsim netdevsim1 netdevsim3 (unregistering): unset [0, 0] type 1 family 0 port 8472 - 0
netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 48601 - 0
netdevsim netdevsim1 netdevsim2 (unregistering): unset [0, 0] type 1 family 0 port 8472 - 0
netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 48601 - 0
netdevsim netdevsim1 netdevsim1 (unregistering): unset [0, 0] type 1 family 0 port 8472 - 0
netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 48601 - 0
bond0 (unregistering): Released all slaves
bond1 (unregistering): Released all slaves
bond2 (unregistering): Released all slaves
hsr_slave_0: left promiscuous mode
hsr_slave_1: left promiscuous mode
IPVS: stop unused estimator thread 0...
------------[ cut here ]------------
WARNING: CPU: 0 PID: 12 at net/xfrm/xfrm_state.c:3303 xfrm_state_fini+0x26d/0x2f0
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 78 00 f8 48 8b 3b 5b 41 5c 41 5d 41 5e 41 5f 5d e9 09 33 e1 f7 e8 d4 05 9d f7 90 <0f> 0b 90 e9 fd fd ff ff e8 c6 05 9d f7 90 0f 0b 90 e9 60 fe ff ff
RSP: 0018:ffffc900000f7898 EFLAGS: 00010293
RAX: ffffffff8a22b92c RBX: ffff8881066d8000 RCX: ffff88801c2f5640
RDX: 0000000000000000 RSI: ffffffff8dba91a8 RDI: ffff88801c2f5640
RBP: ffffc900000f79b0 R08: ffffffff8fa3a637 R09: 1ffffffff1f474c6
R10: dffffc0000000000 R11: fffffbfff1f474c7 R12: ffffffff8f632d80
R13: 1ffff9200001ef40 R14: ffff8881066d9480 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32713ff8 CR3: 000000000df36000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 xfrm_net_exit+0x2d/0x70
 ops_undo_list+0x49a/0x990
 cleanup_net+0x4c5/0x800
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
