[ 2.843873] Initializing XFRM netlink socket [ 167.153796] ------------[ cut here ]------------ [ 167.153966] refcount_t: underflow; use-after-free. [ 167.154087] WARNING: CPU: 2 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 167.154204] Modules linked in: xfrm_user xt_policy nft_compat nf_tables [ 167.154302] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 167.154449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 167.154538] Workqueue: netns cleanup_net [ 167.154608] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 167.154690] Code: 85 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 85 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 [ 167.154891] RSP: 0018:ffff9fc480067d50 EFLAGS: 00010286 [ 167.154990] RAX: 0000000000000000 RBX: ffff9fc480067d60 RCX: 00000000ffffdfff [ 167.155088] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 167.155164] RBP: ffff9fc480067858 R08: ffffffff85b5ba28 R09: 00000000ffffdfff [ 167.155240] R10: ffffffff85a7ba40 R11: ffffffff85b2ba40 R12: dead000000000122 [ 167.155316] R13: 00000000fffdf893 R14: 0000000000000001 R15: ffff947f4601d000 [ 167.155395] FS: 0000000000000000(0000) GS:ffff947ff8a91000(0000) knlGS:0000000000000000 [ 167.155473] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 167.155536] CR2: 00007ffe33dce4f8 CR3: 0000000003232006 CR4: 0000000000772ef0 [ 167.155614] PKRU: 55555554 [ 167.155658] Call Trace: [ 167.155705] [ 167.155757] netdev_run_todo+0x21a/0x550 [ 167.155818] ops_undo_list+0x1e3/0x1f0 [ 167.155875] cleanup_net+0x1b7/0x300 [ 167.155930] process_one_work+0x162/0x380 [ 167.155990] worker_thread+0x299/0x3c0 [ 167.156057] ? rescuer_thread+0x4c0/0x4c0 [ 167.156126] kthread+0x101/0x1f0 [ 167.156204] ? kthreads_online_cpu+0x110/0x110 [ 167.156287] ? kthreads_online_cpu+0x110/0x110 [ 167.156365] ret_from_fork+0x11c/0x140 [ 167.156436] ? kthreads_online_cpu+0x110/0x110 [ 167.156508] ret_from_fork_asm+0x11/0x20 [ 167.156594] [ 167.156627] ---[ end trace 0000000000000000 ]---