[ 22.544234] ------------[ cut here ]------------ [ 22.544325] refcount_t: underflow; use-after-free. [ 22.544407] WARNING: CPU: 0 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 22.544499] Modules linked in: inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth [ 22.544629] CPU: 0 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 22.544723] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.544784] Workqueue: netns cleanup_net [ 22.544831] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 22.544883] Code: 94 e8 18 ed b9 ff 90 0f 0b 90 90 c3 80 3d d9 ea ea 00 00 75 89 c6 05 d0 ea ea 00 01 90 48 c7 c7 78 de d1 94 e8 f5 ec b9 ff 90 <0f> 0b 90 90 c3 80 3d b4 ea ea 00 00 0f 85 62 ff ff ff c6 05 a7 ea [ 22.545062] RSP: 0018:ffffb9e540257d50 EFLAGS: 00010286 [ 22.545123] RAX: 0000000000000000 RBX: ffffb9e540257d60 RCX: 00000000ffffdfff [ 22.545205] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 22.545290] RBP: ffffb9e540257868 R08: ffffffff95156d28 R09: 00000000ffffdfff [ 22.545378] R10: ffffffff95076d40 R11: ffffffff95126d40 R12: dead000000000122 [ 22.545460] R13: 00000000fffbc3a1 R14: 0000000000000001 R15: ffff9f5dc3ea1000 [ 22.545537] FS: 0000000000000000(0000) GS:ffff9f5e693d8000(0000) knlGS:0000000000000000 [ 22.545618] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.545690] CR2: 0000561f93c85dec CR3: 000000000320a003 CR4: 0000000000772ef0 [ 22.545765] PKRU: 55555554 [ 22.545796] Call Trace: [ 22.545821] [ 22.545849] netdev_run_todo+0x21a/0x550 [ 22.545893] ops_undo_list+0x1e3/0x1f0 [ 22.545942] cleanup_net+0x1b7/0x2b0 [ 22.545982] process_one_work+0x162/0x380 [ 22.546041] worker_thread+0x299/0x3c0 [ 22.546085] ? rescuer_thread+0x4c0/0x4c0 [ 22.546133] kthread+0x101/0x1f0 [ 22.546189] ? kthreads_online_cpu+0x110/0x110 [ 22.546245] ? kthreads_online_cpu+0x110/0x110 [ 22.546304] ret_from_fork+0x11c/0x140 [ 22.546354] ? kthreads_online_cpu+0x110/0x110 [ 22.546408] ret_from_fork_asm+0x11/0x20 [ 22.546458] [ 22.546485] ---[ end trace 0000000000000000 ]---