------------[ cut here ]------------ refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 0 PID: 7848 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31 Modules linked in: CPU: 0 PID: 7848 Comm: kworker/0:6 Not tainted 5.16.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events linkwatch_event RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31 Code: 1d 18 f7 a1 09 31 ff 89 de e8 1d f6 9c fd 84 db 75 e0 e8 34 f2 9c fd 48 c7 c7 e0 d4 04 8a c6 05 f8 f6 a1 09 01 e8 5b 99 25 05 <0f> 0b eb c4 e8 18 f2 9c fd 0f b6 1d e7 f6 a1 09 31 ff 89 de e8 e8 RSP: 0018:ffffc9000b077c28 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880766d5700 RSI: ffffffff815f0c28 RDI: fffff5200160ef77 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815ea9ce R11: 0000000000000000 R12: ffff8880325605b0 R13: 0000000000000040 R14: 0000000000000000 R15: ffff888032560000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000056de9efc CR3: 0000000019070000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __refcount_dec include/linux/refcount.h:344 [inline] refcount_dec include/linux/refcount.h:359 [inline] dev_put include/linux/netdevice.h:4166 [inline] linkwatch_do_dev+0x134/0x150 net/core/link_watch.c:169 __linkwatch_run_queue+0x233/0x6a0 net/core/link_watch.c:213 linkwatch_event+0x4a/0x60 net/core/link_watch.c:252 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295