do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
     __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386
     do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
     entry_SYSENTER_compat_after_hwframe+0x84/0x8e
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15352 at lib/ref_tracker.c:179 ref_tracker_dir_exit+0x411/0x550 lib/ref_tracker.c:179
Modules linked in:
CPU: 0 PID: 15352 Comm: kworker/u8:9 Not tainted 6.10.0-rc7-syzkaller-00256-gd0d0cd380055 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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 c8 8b a8 06 eb 1a e8 31 7b ad fc 48 8b 1c 24 48 89 df 48 8b 74 24 20 e8 b0 8b a8 06 90 <0f> 0b 90 48 83 c3 44 48 89 df be 04 00 00 00 e8 6b 43 13 fd 48 89
RSP: 0018:ffffc9000379f9e0 EFLAGS: 00010246
RAX: bf744f3375a0b000 RBX: ffff888065399e98 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: 0000000000000001
RBP: ffffc9000379fab0 R08: ffffffff92fad69f R09: 1ffffffff25f5ad3
R10: dffffc0000000000 R11: fffffbfff25f5ad4 R12: 1ffff11004223ee0
R13: dead000000000100 R14: ffff888065399ee8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c5ad580158 CR3: 000000006063a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 net_free net/core/net_namespace.c:465 [inline]
 cleanup_net+0xbf3/0xcc0 net/core/net_namespace.c:661
 process_one_work kernel/workqueue.c:3248 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>