__linkwatch_run_queue+0x2a3/0x7a0 net/core/link_watch.c:244 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:304 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x5b6/0x6c0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 11426 at lib/ref_tracker.c:323 ref_tracker_free+0x61a/0x830 lib/ref_tracker.c:323 Modules linked in: CPU: 1 UID: 0 PID: 11426 Comm: kworker/u8:1 Not tainted 6.16.0-syzkaller-12288-g2b38afce25c4 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: events_unbound linkwatch_event RIP: 0010:ref_tracker_free+0x61a/0x830 lib/ref_tracker.c:323 Code: 00 44 8b 73 18 31 ff 44 89 f6 e8 71 60 e1 fe 45 85 f6 0f 85 a6 00 00 00 e8 23 65 e1 fe 48 8b 34 24 48 89 ef e8 57 2b a3 04 90 <0f> 0b 90 bb ea ff ff ff e9 50 fd ff ff e8 04 65 e1 fe 4c 8d 6d 44 RSP: 0018:ffffc900020ef8a8 EFLAGS: 00010202 RAX: 0000000000000201 RBX: ffff888119f931c0 RCX: 0000000000000000 RDX: 0000000000000202 RSI: ffffffff88d267ba RDI: 0000000000000001 RBP: ffff88811d9745d0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8a9d63d7 R11: 000000000023c048 R12: 1ffff9200041df17 R13: ffffc900020ef8d8 R14: 00000000021c0398 R15: ffff888119f931d8 FS: 0000000000000000(0000) GS:ffff888268ffc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6e19c91000 CR3: 00000000090a4000 CR4: 00000000003506f0 Call Trace: netdev_tracker_free include/linux/netdevice.h:4366 [inline] netdev_put include/linux/netdevice.h:4383 [inline] netdev_put include/linux/netdevice.h:4379 [inline] netdev_watchdog_down net/sched/sch_generic.c:572 [inline] dev_deactivate_many+0x286/0xd30 net/sched/sch_generic.c:1370 dev_deactivate+0xf8/0x1c0 net/sched/sch_generic.c:1401 linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:184 __linkwatch_run_queue+0x2a3/0x7a0 net/core/link_watch.c:244 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:304 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x5b6/0x6c0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245