[ 3.459723] ------------[ cut here ]------------ [ 3.459815] refcount_t: underflow; use-after-free. [ 3.459891] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 3.459982] Modules linked in: ts_kmp ts_bm xt_string nft_compat nf_tables x_tables dummy [ 3.460076] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 3.460172] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 3.460240] Workqueue: netns cleanup_net [ 3.460286] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 3.460343] Code: 98 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 71 98 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 [ 3.460536] RSP: 0018:ffffb7e240067d50 EFLAGS: 00010286 [ 3.460595] RAX: 0000000000000000 RBX: ffffb7e240067d60 RCX: 00000000ffffdfff [ 3.460671] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 3.460752] RBP: ffffb7e240067868 R08: ffffffff98b56d28 R09: 00000000ffffdfff [ 3.460831] R10: ffffffff98a76d40 R11: ffffffff98b26d40 R12: dead000000000122 [ 3.460911] R13: 00000000fffb7905 R14: 0000000000000001 R15: ffff9995443f1000 [ 3.460991] FS: 0000000000000000(0000) GS:ffff9995e59d8000(0000) knlGS:0000000000000000 [ 3.461078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.461149] CR2: 0000562101672dec CR3: 0000000022241002 CR4: 0000000000772ef0 [ 3.461228] PKRU: 55555554 [ 3.461261] Call Trace: [ 3.461288] [ 3.461313] netdev_run_todo+0x21a/0x550 [ 3.461365] ops_undo_list+0x1e3/0x1f0 [ 3.461415] cleanup_net+0x1b7/0x2b0 [ 3.461461] process_one_work+0x162/0x380 [ 3.461510] worker_thread+0x299/0x3c0 [ 3.461555] ? rescuer_thread+0x4c0/0x4c0 [ 3.461601] kthread+0x101/0x1f0 [ 3.461649] ? kthreads_online_cpu+0x110/0x110 [ 3.461712] ? kthreads_online_cpu+0x110/0x110 [ 3.461765] ret_from_fork+0x11c/0x140 [ 3.461813] ? kthreads_online_cpu+0x110/0x110 [ 3.461872] ret_from_fork_asm+0x11/0x20 [ 3.461916] [ 3.461944] ---[ end trace 0000000000000000 ]---