[ 2.446222] 8021q: 802.1Q VLAN Support v1.8 [ 2.863973] br1: port 1(veth1) entered blocking state [ 2.864048] br1: port 1(veth1) entered disabled state [ 2.864127] veth1: entered allmulticast mode [ 2.864217] veth1: entered promiscuous mode [ 2.875348] br1: port 1(veth1) entered blocking state [ 2.875440] br1: port 1(veth1) entered forwarding state [ 28.423856] br1: port 1(veth1) entered disabled state [ 28.434360] veth1: left allmulticast mode [ 28.434429] veth1: left promiscuous mode [ 28.434473] br1: port 1(veth1) entered disabled state [ 28.461971] ------------[ cut here ]------------ [ 28.462128] refcount_t: underflow; use-after-free. [ 28.462218] WARNING: CPU: 2 PID: 494 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 28.462307] Modules linked in: bridge stp llc 8021q vrf veth [ 28.462388] CPU: 2 UID: 0 PID: 494 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 28.462500] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.462584] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 28.462651] Code: 97 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 f1 97 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 [ 28.462802] RSP: 0018:ffffab5e809ef730 EFLAGS: 00010282 [ 28.462877] RAX: 0000000000000000 RBX: ffffab5e809ef740 RCX: 00000000ffffdfff [ 28.462967] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 28.463051] RBP: ffffab5e809ef248 R08: ffffffff98356a28 R09: 00000000ffffdfff [ 28.463141] R10: ffffffff98276a40 R11: ffffffff98326a40 R12: dead000000000122 [ 28.463220] R13: 00000000fffbdacb R14: 0000000000000001 R15: ffff9c3a44286000 [ 28.463302] FS: 00007f034d198800(0000) GS:ffff9c3ae62d9000(0000) knlGS:0000000000000000 [ 28.463385] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.463475] CR2: 00000000004e68d0 CR3: 0000000007b64006 CR4: 0000000000772ef0 [ 28.463566] PKRU: 55555554 [ 28.463611] Call Trace: [ 28.463658] [ 28.463704] netdev_run_todo+0x21a/0x550 [ 28.463774] rtnl_dellink+0x15b/0x350 [ 28.463842] ? virtio_fs_enqueue_req+0x352/0x570 [ 28.463910] ? netdev_run_todo+0x63/0x550 [ 28.463971] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 28.464037] rtnetlink_rcv_msg+0x358/0x400 [ 28.464108] ? get_page_from_freelist+0x15b4/0x1770 [ 28.464180] ? rtnl_calcit.isra.0+0x110/0x110 [ 28.464245] netlink_rcv_skb+0x57/0x100 [ 28.464307] netlink_unicast+0x252/0x380 [ 28.464362] ? __alloc_skb+0xdb/0x190 [ 28.464430] netlink_sendmsg+0x1be/0x3e0 [ 28.464496] ____sys_sendmsg+0x132/0x260 [ 28.464560] ? copy_msghdr_from_user+0x6c/0xa0 [ 28.464627] ___sys_sendmsg+0x87/0xd0 [ 28.464684] ? do_wp_page+0x369/0xe90 [ 28.464747] ? ___pte_offset_map+0x1b/0xd0 [ 28.464813] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 28.464881] ? fsnotify_grab_connector+0x48/0x80 [ 28.464958] ? fsnotify_destroy_marks+0x29/0x150 [ 28.465058] __sys_sendmsg+0x71/0xd0 [ 28.465202] do_syscall_64+0xa4/0xfd0 [ 28.465278] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 28.465351] RIP: 0033:0x7f034d3661d7 [ 28.465411] 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 [ 28.465587] RSP: 002b:00007ffd48716428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 28.465694] RAX: ffffffffffffffda RBX: 00007ffd48716b50 RCX: 00007f034d3661d7 [ 28.465789] RDX: 0000000000000000 RSI: 00007ffd48716490 RDI: 0000000000000005 [ 28.465884] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 28.465986] R10: 00007f034d262f60 R11: 0000000000000246 R12: 0000000000000002 [ 28.466086] R13: 00000000690de6f5 R14: 0000000000499600 R15: 0000000000000000 [ 28.466167] [ 28.466208] ---[ end trace 0000000000000000 ]--- [ 28.466884] ip (494) used greatest stack depth: 11744 bytes left