[ 5.154352] ------------[ cut here ]------------ [ 5.154409] refcount_t: underflow; use-after-free. [ 5.154467] WARNING: CPU: 3 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 5.154530] Modules linked in: unix_diag [ 5.154562] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 5.154628] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 5.154691] Workqueue: netns cleanup_net [ 5.154726] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 5.154768] Code: 8b e8 e8 54 ba ff 90 0f 0b 90 90 c3 80 3d 00 e6 2b 01 00 75 89 c6 05 f7 e5 2b 01 01 90 48 c7 c7 f8 48 35 8b e8 c5 54 ba ff 90 <0f> 0b 90 90 c3 80 3d db e5 2b 01 00 0f 85 62 ff ff ff c6 05 ce e5 [ 5.154900] RSP: 0018:ffffc0204024fd50 EFLAGS: 00010286 [ 5.154933] RAX: 0000000000000000 RBX: ffffc0204024fd60 RCX: 00000000ffffdfff [ 5.154984] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 5.155031] RBP: ffffc0204024f858 R08: ffffffff8bb5ba28 R09: 00000000ffffdfff [ 5.155079] R10: ffffffff8ba7ba40 R11: ffffffff8bb2ba40 R12: dead000000000122 [ 5.155127] R13: 00000000fffb7fc2 R14: 0000000000000001 R15: ffff9d1b046ba000 [ 5.155181] FS: 0000000000000000(0000) GS:ffff9d1bb2b11000(0000) knlGS:0000000000000000 [ 5.155236] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.155285] CR2: 00007fedbc5ac270 CR3: 0000000003268005 CR4: 0000000000772ef0 [ 5.155339] PKRU: 55555554 [ 5.155361] Call Trace: [ 5.155386] [ 5.155407] netdev_run_todo+0x21a/0x550 [ 5.155445] ops_undo_list+0x1e3/0x1f0 [ 5.155479] cleanup_net+0x1b7/0x300 [ 5.155512] process_one_work+0x162/0x380 [ 5.155549] worker_thread+0x299/0x3c0 [ 5.155582] ? rescuer_thread+0x4c0/0x4c0 [ 5.155613] kthread+0x101/0x1f0 [ 5.155644] ? kthreads_online_cpu+0x110/0x110 [ 5.155684] ? kthreads_online_cpu+0x110/0x110 [ 5.155724] ret_from_fork+0x11c/0x140 [ 5.155758] ? kthreads_online_cpu+0x110/0x110 [ 5.155802] ret_from_fork_asm+0x11/0x20 [ 5.155845] [ 5.155870] ---[ end trace 0000000000000000 ]---