------------[ cut here ]------------
WARNING: CPU: 0 PID: 50 at lib/ref_tracker.c:179 ref_tracker_dir_exit+0x3e3/0x680 lib/ref_tracker.c:179
Modules linked in:
CPU: 0 PID: 50 Comm: kworker/u8:3 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: netns cleanup_net
RIP: 0010:ref_tracker_dir_exit+0x3e3/0x680 lib/ref_tracker.c:179
Code: 11 02 00 00 4d 39 f5 49 8b 06 4d 89 f7 0f 85 0e ff ff ff 48 8b 2c 24 e8 eb ef e3 fc 48 8b 74 24 18 48 89 ef e8 ce f9 2c 06 90 <0f> 0b 90 e8 d5 ef e3 fc 48 8d 5d 44 be 04 00 00 00 48 89 df e8 94
RSP: 0018:ffffc90000ba7b38 EFLAGS: 00010246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8b0cb740 RDI: 0000000000000001
RBP: ffff888060f581d8 R08: 0000000000000001 R09: fffffbfff27b4e4b
R10: ffffffff93da725f R11: ffffffff81004ffa R12: ffff888060f58228
R13: ffff888060f58228 R14: ffff888060f58228 R15: ffff888060f58228
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb74b2d66e4 CR3: 000000007c4b4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 net_free net/core/net_namespace.c:462 [inline]
 net_free net/core/net_namespace.c:456 [inline]
 cleanup_net+0x986/0xbf0 net/core/net_namespace.c:658
 process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
 process_scheduled_works kernel/workqueue.c:3335 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>