------------[ cut here ]------------
WARNING: CPU: 1 PID: 2905 at lib/ref_tracker.c:179 ref_tracker_dir_exit+0x411/0x550 lib/ref_tracker.c:179
Modules linked in:
CPU: 1 PID: 2905 Comm: kworker/u4:12 Not tainted 6.8.0-rc4-syzkaller-00189-g97dde8402633 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: netns cleanup_net
RIP: 0010:ref_tracker_dir_exit+0x411/0x550 lib/ref_tracker.c:179
Code: 48 8b 1c 24 48 89 df 48 8b 74 24 20 e8 28 33 98 06 eb 1a e8 c1 30 ba fc 48 8b 1c 24 48 89 df 48 8b 74 24 20 e8 10 33 98 06 90 <0f> 0b 90 48 83 c3 44 48 89 df be 04 00 00 00 e8 6b 50 1c fd 48 89
RSP: 0000:ffffc9000aac7a40 EFLAGS: 00010246
RAX: 07f08f3bc3d1d400 RBX: ffff888050001ea0 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8baab5e0 RDI: 0000000000000001
RBP: ffffc9000aac7b10 R08: ffffffff92c8a52f R09: 1ffffffff25914a5
R10: dffffc0000000000 R11: fffffbfff25914a6 R12: 1ffff110036d6670
R13: dead000000000100 R14: ffff888050001ef0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4033656440 CR3: 00000000776fc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 net_free net/core/net_namespace.c:452 [inline]
 cleanup_net+0xacb/0xb90 net/core/net_namespace.c:639
 process_one_work kernel/workqueue.c:2633 [inline]
 process_scheduled_works+0x913/0x1420 kernel/workqueue.c:2706
 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
 kthread+0x2ef/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
 </TASK>