kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
------------[ cut here ]------------
WARNING: CPU: 2 PID: 1167 at lib/ref_tracker.c:255 ref_tracker_free+0x61e/0x820 lib/ref_tracker.c:255
Modules linked in:
CPU: 2 UID: 0 PID: 1167 Comm: kworker/u32:10 Not tainted 6.13.0-syzkaller-02526-gc4b9570cfb63 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events_unbound linkwatch_event
RIP: 0010:ref_tracker_free+0x61e/0x820 lib/ref_tracker.c:255
Code: 00 44 8b 6b 18 31 ff 44 89 ee e8 fd e5 cd fc 45 85 ed 0f 85 a6 00 00 00 e8 ef ea cd fc 48 8b 34 24 48 89 ef e8 03 5a 57 06 90 <0f> 0b 90 bb ea ff ff ff e9 4e fd ff ff e8 d0 ea cd fc 4c 8d 6d 44
RSP: 0018:ffffc90006e87920 EFLAGS: 00010202
RAX: 0000000000000201 RBX: ffff888026474900 RCX: 0000000000000000
RDX: 0000000000000202 RSI: ffffffff8b6cd2e0 RDI: 0000000000000001
RBP: ffff888045528608 R08: 0000000000000001 R09: fffffbfff2dbe3b4
R10: ffffffff96df1da7 R11: 0000000000000005 R12: 1ffff92000dd0f26
R13: 00000000011c0562 R14: ffff888026474918 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802b600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f503fda4 CR3: 0000000064082000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 netdev_tracker_free include/linux/netdevice.h:4156 [inline]
 netdev_put include/linux/netdevice.h:4173 [inline]
 netdev_put include/linux/netdevice.h:4169 [inline]
 dev_watchdog_down net/sched/sch_generic.c:576 [inline]
 dev_deactivate_many+0x215/0xb20 net/sched/sch_generic.c:1369
 dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
 linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:184
 __linkwatch_run_queue+0x233/0x690 net/core/link_watch.c:243
 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:286
 process_one_work+0x958/0x1b30 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3317 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>