hsr_slave_0: left promiscuous mode
pimreg3 (unregistering): left allmulticast mode
pim6reg (unregistering): left allmulticast mode
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5848 at net/ipv6/xfrm6_tunnel.c:341 xfrm6_tunnel_net_exit+0x7e/0x100
Modules linked in:
CPU: 0 UID: 0 PID: 5848 Comm: kworker/u8:2 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:xfrm6_tunnel_net_exit+0x7e/0x100
Code: a8 f8 de f7 4b 83 3c 2c 00 75 19 e8 cc 8c 7b f7 49 81 fd f8 07 00 00 74 1d e8 be 8c 7b f7 49 83 c5 08 eb c9 e8 b3 8c 7b f7 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:ffffc9000387f8b0 EFLAGS: 00010293
RAX: ffffffff8a441e7d RBX: ffff888110878000 RCX: ffff888022e59cc0
RDX: 0000000000000000 RSI: ffffffff8be33660 RDI: ffff888110878000
RBP: ffffc9000387f9b0 R08: ffffffff8fa38537 R09: 1ffffffff1f470a6
R10: dffffc0000000000 R11: fffffbfff1f470a7 R12: ffff888110878000
R13: 0000000000000000 R14: ffff88810851a440 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b861a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f921e84c580 CR3: 000000000df36000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ops_undo_list+0x49a/0x990
 cleanup_net+0x4c5/0x800
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
