[ 2.380522] 8021q: 802.1Q VLAN Support v1.8 [ 2.779385] br1: port 1(veth1) entered blocking state [ 2.779491] br1: port 1(veth1) entered disabled state [ 2.779587] veth1: entered allmulticast mode [ 2.779748] veth1: entered promiscuous mode [ 2.791830] br1: port 1(veth1) entered blocking state [ 2.791975] br1: port 1(veth1) entered forwarding state [ 28.365219] br1: port 1(veth1) entered disabled state [ 28.376053] veth1: left allmulticast mode [ 28.376128] veth1: left promiscuous mode [ 28.376175] br1: port 1(veth1) entered disabled state [ 28.401782] ------------[ cut here ]------------ [ 28.401944] refcount_t: underflow; use-after-free. [ 28.402074] WARNING: CPU: 2 PID: 493 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 28.402204] Modules linked in: bridge stp llc 8021q vrf veth [ 28.402323] CPU: 2 UID: 0 PID: 493 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 28.402447] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.402542] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 28.402655] Code: ab 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 51 ab 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 [ 28.402865] RSP: 0018:ffffb99c8099f730 EFLAGS: 00010282 [ 28.402949] RAX: 0000000000000000 RBX: ffffb99c8099f740 RCX: 00000000ffffdfff [ 28.403064] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 28.403170] RBP: ffffb99c8099f248 R08: ffffffffab956a28 R09: 00000000ffffdfff [ 28.403277] R10: ffffffffab876a40 R11: ffffffffab926a40 R12: dead000000000122 [ 28.403382] R13: 00000000fffbda8e R14: 0000000000000001 R15: ffff8e70c4e61000 [ 28.403493] FS: 00007fe604562800(0000) GS:ffff8e7152cd9000(0000) knlGS:0000000000000000 [ 28.403601] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.403697] CR2: 00000000004e68d0 CR3: 000000000b1ef004 CR4: 0000000000772ef0 [ 28.403811] PKRU: 55555554 [ 28.403870] Call Trace: [ 28.403938] [ 28.403998] netdev_run_todo+0x21a/0x550 [ 28.404086] rtnl_dellink+0x15b/0x350 [ 28.404185] ? virtio_fs_enqueue_req+0x352/0x570 [ 28.404277] ? netdev_run_todo+0x63/0x550 [ 28.404347] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 28.404429] rtnetlink_rcv_msg+0x358/0x400 [ 28.404495] ? get_page_from_freelist+0x15b4/0x1770 [ 28.404601] ? rtnl_calcit.isra.0+0x110/0x110 [ 28.404684] netlink_rcv_skb+0x57/0x100 [ 28.404781] netlink_unicast+0x252/0x380 [ 28.404852] ? __alloc_skb+0xdb/0x190 [ 28.404929] netlink_sendmsg+0x1be/0x3e0 [ 28.405003] ____sys_sendmsg+0x132/0x260 [ 28.405089] ? copy_msghdr_from_user+0x6c/0xa0 [ 28.405177] ___sys_sendmsg+0x87/0xd0 [ 28.405256] ? do_wp_page+0x369/0xe90 [ 28.405333] ? ___pte_offset_map+0x1b/0xd0 [ 28.405407] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 28.405496] ? fsnotify_grab_connector+0x48/0x80 [ 28.405586] ? fsnotify_destroy_marks+0x29/0x150 [ 28.405671] __sys_sendmsg+0x71/0xd0 [ 28.405756] do_syscall_64+0xa4/0xfd0 [ 28.405838] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 28.405934] RIP: 0033:0x7fe6047301d7 [ 28.406005] 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 [ 28.406207] RSP: 002b:00007fff73c07b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 28.406310] RAX: ffffffffffffffda RBX: 00007fff73c08240 RCX: 00007fe6047301d7 [ 28.406412] RDX: 0000000000000000 RSI: 00007fff73c07b80 RDI: 0000000000000005 [ 28.406514] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 28.406615] R10: 00007fe60462cf60 R11: 0000000000000246 R12: 0000000000000002 [ 28.406716] R13: 00000000690dece4 R14: 0000000000499600 R15: 0000000000000000 [ 28.406823] [ 28.406875] ---[ end trace 0000000000000000 ]--- [ 28.407489] ip (493) used greatest stack depth: 11744 bytes left