[ 2.383208] 8021q: 802.1Q VLAN Support v1.8 [ 9.898089] ------------[ cut here ]------------ [ 9.898197] refcount_t: underflow; use-after-free. [ 9.898254] WARNING: CPU: 3 PID: 354 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 9.898329] Modules linked in: 8021q vrf veth [ 9.898421] CPU: 3 UID: 0 PID: 354 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 9.898504] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.898553] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 9.898597] Code: 90 e8 18 df ba ff 90 0f 0b 90 90 c3 80 3d f9 da eb 00 00 75 89 c6 05 f0 da eb 00 01 90 48 c7 c7 28 e0 71 90 e8 f5 de ba ff 90 <0f> 0b 90 90 c3 80 3d d4 da eb 00 00 0f 85 62 ff ff ff c6 05 c7 da [ 9.898746] RSP: 0018:ffffb4f84050f730 EFLAGS: 00010282 [ 9.898787] RAX: 0000000000000000 RBX: ffffb4f84050f740 RCX: 00000000ffffdfff [ 9.898870] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 9.898933] RBP: ffffb4f84050f248 R08: ffffffff90b56a28 R09: 00000000ffffdfff [ 9.898988] R10: ffffffff90a76a40 R11: ffffffff90b26a40 R12: dead000000000122 [ 9.899069] R13: 00000000fffb9248 R14: 0000000000000001 R15: ffff925dc44e6000 [ 9.899166] FS: 00007fe0042b0800(0000) GS:ffff925e6db59000(0000) knlGS:0000000000000000 [ 9.899232] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.899291] CR2: 00000000004e67e8 CR3: 0000000003187004 CR4: 0000000000772ef0 [ 9.899361] PKRU: 55555554 [ 9.899392] Call Trace: [ 9.899413] [ 9.899433] netdev_run_todo+0x21a/0x550 [ 9.899486] rtnl_dellink+0x15b/0x350 [ 9.899527] ? virtio_fs_enqueue_req+0x352/0x570 [ 9.899573] ? netdev_run_todo+0x63/0x550 [ 9.899612] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 9.899665] rtnetlink_rcv_msg+0x358/0x400 [ 9.899708] ? get_page_from_freelist+0x15b4/0x1770 [ 9.899761] ? rtnl_calcit.isra.0+0x110/0x110 [ 9.899802] netlink_rcv_skb+0x57/0x100 [ 9.899844] netlink_unicast+0x252/0x380 [ 9.899880] ? __alloc_skb+0xdb/0x190 [ 9.899926] netlink_sendmsg+0x1be/0x3e0 [ 9.899957] ____sys_sendmsg+0x132/0x260 [ 9.899994] ? copy_msghdr_from_user+0x6c/0xa0 [ 9.900051] ___sys_sendmsg+0x87/0xd0 [ 9.900093] ? do_wp_page+0x369/0xe90 [ 9.900131] ? ___pte_offset_map+0x1b/0xd0 [ 9.900169] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 9.900214] ? fsnotify_grab_connector+0x48/0x80 [ 9.900257] ? fsnotify_destroy_marks+0x29/0x150 [ 9.900310] __sys_sendmsg+0x71/0xd0 [ 9.900352] do_syscall_64+0xa4/0xfd0 [ 9.900398] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.900441] RIP: 0033:0x7fe00447e1d7 [ 9.900483] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 9.900623] RSP: 002b:00007ffc269ac9e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 9.900681] RAX: ffffffffffffffda RBX: 00007ffc269ad110 RCX: 00007fe00447e1d7 [ 9.900747] RDX: 0000000000000000 RSI: 00007ffc269aca50 RDI: 0000000000000005 [ 9.900811] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 9.900878] R10: 00007fe00437af60 R11: 0000000000000246 R12: 0000000000000002 [ 9.900943] R13: 00000000690de8cd R14: 0000000000499600 R15: 0000000000000000 [ 9.901002] [ 9.901033] ---[ end trace 0000000000000000 ]--- [ 9.901550] ip (354) used greatest stack depth: 11744 bytes left