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
------------[ cut here ]------------
WARNING: CPU: 3 PID: 76 at lib/ref_tracker.c:255 ref_tracker_free+0x61e/0x820 lib/ref_tracker.c:255
Modules linked in:
CPU: 3 UID: 0 PID: 76 Comm: kworker/u32:4 Not tainted 6.14.0-rc3-syzkaller-00180-ga3daad821514 #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 5d 06 c8 fc 45 85 ed 0f 85 a6 00 00 00 e8 4f 0b c8 fc 48 8b 34 24 48 89 ef e8 63 d2 65 06 90 <0f> 0b 90 bb ea ff ff ff e9 4e fd ff ff e8 30 0b c8 fc 4c 8d 6d 44
RSP: 0018:ffffc9000100f8b0 EFLAGS: 00010202
RAX: 0000000000000201 RBX: ffff8880517a0a40 RCX: 0000000000000000
RDX: 0000000000000202 RSI: ffffffff8b6ceca0 RDI: 0000000000000001
RBP: ffff888025890608 R08: 0000000000000001 R09: fffffbfff2dd79b4
R10: ffffffff96ebcda7 R11: 0000000000000005 R12: 1ffff92000201f18
R13: 0000000005d60542 R14: ffff8880517a0a58 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802b700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000080924000 CR3: 000000004f908000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 netdev_tracker_free include/linux/netdevice.h:4302 [inline]
 netdev_put include/linux/netdevice.h:4319 [inline]
 netdev_put include/linux/netdevice.h:4315 [inline]
 netdev_watchdog_down net/sched/sch_generic.c:571 [inline]
 dev_deactivate_many+0x287/0xc30 net/sched/sch_generic.c:1367
 dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1398
 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+0x9c5/0x1ba0 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>