[ 2.030780] ------------[ cut here ]------------ [ 2.030868] refcount_t: underflow; use-after-free. [ 2.030924] WARNING: CPU: 0 PID: 68 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 2.030985] Modules linked in: veth [ 2.031018] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 2.031080] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.031141] Workqueue: netns cleanup_net [ 2.031188] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 2.031246] Code: b2 e8 f8 c3 ba ff 90 0f 0b 90 90 c3 80 3d 39 c1 eb 00 00 75 89 c6 05 30 c1 eb 00 01 90 48 c7 c7 30 a0 51 b2 e8 d5 c3 ba ff 90 <0f> 0b 90 90 c3 80 3d 14 c1 eb 00 00 0f 85 62 ff ff ff c6 05 07 c1 [ 2.031400] RSP: 0018:ffffa27e8025fd50 EFLAGS: 00010286 [ 2.031439] RAX: 0000000000000000 RBX: ffffa27e8025fd60 RCX: 00000000ffffdfff [ 2.031493] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 2.031558] RBP: ffffa27e8025f880 R08: ffffffffb2956a28 R09: 00000000ffffdfff [ 2.031608] R10: ffffffffb2876a40 R11: ffffffffb2926a40 R12: dead000000000122 [ 2.031658] R13: 00000000fffb7382 R14: 0000000000000001 R15: ffff8d3484dc1000 [ 2.031714] FS: 0000000000000000(0000) GS:ffff8d350bbe2000(0000) knlGS:0000000000000000 [ 2.031775] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.031843] CR2: 00005585eb7bb3b8 CR3: 00000000033db004 CR4: 0000000000772ef0 [ 2.031926] PKRU: 55555554 [ 2.031953] Call Trace: [ 2.031980] [ 2.032007] netdev_run_todo+0x21a/0x550 [ 2.032049] ops_undo_list+0x1e3/0x1f0 [ 2.032079] cleanup_net+0x1b7/0x2b0 [ 2.032117] process_one_work+0x162/0x380 [ 2.032154] worker_thread+0x299/0x3c0 [ 2.032185] ? rescuer_thread+0x4c0/0x4c0 [ 2.032214] kthread+0x101/0x1f0 [ 2.032300] ? kthreads_online_cpu+0x110/0x110 [ 2.032368] ? kthreads_online_cpu+0x110/0x110 [ 2.033381] ret_from_fork+0x11c/0x140 [ 2.035008] ? kthreads_online_cpu+0x110/0x110 [ 2.035056] ret_from_fork_asm+0x11/0x20 [ 2.035087] [ 2.035115] ---[ end trace 0000000000000000 ]---