[ 2.502032] 8021q: 802.1Q VLAN Support v1.8 [ 2.931017] br1: port 1(veth1.100) entered blocking state [ 2.931088] br1: port 1(veth1.100) entered disabled state [ 2.931149] veth1.100: entered allmulticast mode [ 2.931192] veth1: entered allmulticast mode [ 2.931299] veth1.100: entered promiscuous mode [ 2.931342] veth1: entered promiscuous mode [ 2.963840] br1: port 1(veth1.100) entered blocking state [ 2.963918] br1: port 1(veth1.100) entered forwarding state [ 3.035056] br2: port 1(veth1.200) entered blocking state [ 3.035127] br2: port 1(veth1.200) entered disabled state [ 3.035187] veth1.200: entered allmulticast mode [ 3.035269] veth1.200: entered promiscuous mode [ 3.068016] br2: port 1(veth1.200) entered blocking state [ 3.068136] br2: port 1(veth1.200) entered forwarding state [ 12.190369] veth1.100: left allmulticast mode [ 12.190461] veth1.100: left promiscuous mode [ 12.190526] br1: port 1(veth1.100) entered disabled state [ 12.204264] veth1.200: left allmulticast mode [ 12.204395] veth1: left allmulticast mode [ 12.204474] veth1.200: left promiscuous mode [ 12.204548] veth1: left promiscuous mode [ 12.204633] br2: port 1(veth1.200) entered disabled state [ 14.226577] br2: port 1(veth1.200) entered blocking state [ 14.226674] br2: port 1(veth1.200) entered disabled state [ 14.226748] veth1.200: entered allmulticast mode [ 14.226817] veth1: entered allmulticast mode [ 14.226910] veth1.200: entered promiscuous mode [ 14.226978] veth1: entered promiscuous mode [ 14.227054] br2: port 1(veth1.200) entered blocking state [ 14.227116] br2: port 1(veth1.200) entered forwarding state [ 14.240711] br1: port 1(veth1.100) entered blocking state [ 14.240801] br1: port 1(veth1.100) entered disabled state [ 14.240867] veth1.100: entered allmulticast mode [ 14.240970] veth1.100: entered promiscuous mode [ 14.241084] br1: port 1(veth1.100) entered blocking state [ 14.241140] br1: port 1(veth1.100) entered forwarding state [ 18.336517] veth1.200: left allmulticast mode [ 18.336599] veth1.200: left promiscuous mode [ 18.336678] br2: port 1(veth1.200) entered disabled state [ 18.370502] ------------[ cut here ]------------ [ 18.370675] refcount_t: underflow; use-after-free. [ 18.370759] WARNING: CPU: 2 PID: 453 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 18.370880] Modules linked in: bridge stp llc 8021q vrf veth [ 18.371077] CPU: 2 UID: 0 PID: 453 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 18.371204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.371293] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 18.371370] Code: a5 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 a5 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 [ 18.371567] RSP: 0018:ffffc2d8408f7730 EFLAGS: 00010282 [ 18.371647] RAX: 0000000000000000 RBX: ffffc2d8408f7740 RCX: 00000000ffffdfff [ 18.371756] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 18.371864] RBP: ffffc2d8408f7248 R08: ffffffffa5956a28 R09: 00000000ffffdfff [ 18.371970] R10: ffffffffa5876a40 R11: ffffffffa5926a40 R12: dead000000000122 [ 18.372067] R13: 00000000fffbb358 R14: 0000000000000001 R15: ffffa0eec5da5000 [ 18.372167] FS: 00007f4f411a1800(0000) GS:ffffa0ef58cd9000(0000) knlGS:0000000000000000 [ 18.372272] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.372373] CR2: 00000000004e68d8 CR3: 00000000079c4004 CR4: 0000000000772ef0 [ 18.372479] PKRU: 55555554 [ 18.372533] Call Trace: [ 18.372596] [ 18.372650] netdev_run_todo+0x21a/0x550 [ 18.372721] rtnl_dellink+0x15b/0x350 [ 18.372790] ? virtio_fs_enqueue_req+0x352/0x570 [ 18.372876] ? netdev_run_todo+0x63/0x550 [ 18.372960] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 18.373041] rtnetlink_rcv_msg+0x358/0x400 [ 18.373105] ? get_page_from_freelist+0x15b4/0x1770 [ 18.373181] ? rtnl_calcit.isra.0+0x110/0x110 [ 18.373254] netlink_rcv_skb+0x57/0x100 [ 18.373328] netlink_unicast+0x252/0x380 [ 18.373394] ? __alloc_skb+0xdb/0x190 [ 18.373478] netlink_sendmsg+0x1be/0x3e0 [ 18.373545] ____sys_sendmsg+0x132/0x260 [ 18.373617] ? copy_msghdr_from_user+0x6c/0xa0 [ 18.373703] ___sys_sendmsg+0x87/0xd0 [ 18.373772] ? do_wp_page+0x369/0xe90 [ 18.373844] ? ___pte_offset_map+0x1b/0xd0 [ 18.373907] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 18.374004] ? fsnotify_grab_connector+0x48/0x80 [ 18.374086] ? fsnotify_destroy_marks+0x29/0x150 [ 18.374177] __sys_sendmsg+0x71/0xd0 [ 18.374245] do_syscall_64+0xa4/0xfd0 [ 18.374320] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.374401] RIP: 0033:0x7f4f4136f1d7 [ 18.374477] 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 [ 18.374675] RSP: 002b:00007ffdaabe26c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.374781] RAX: ffffffffffffffda RBX: 00007ffdaabe2df0 RCX: 00007f4f4136f1d7 [ 18.374881] RDX: 0000000000000000 RSI: 00007ffdaabe2730 RDI: 0000000000000005 [ 18.374996] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 18.375098] R10: 00007f4f4126bf60 R11: 0000000000000246 R12: 0000000000000002 [ 18.375217] R13: 00000000690de776 R14: 0000000000499600 R15: 0000000000000000 [ 18.375318] [ 18.375367] ---[ end trace 0000000000000000 ]--- [ 18.376113] ip (453) used greatest stack depth: 11744 bytes left [ 18.433375] veth1.100: left allmulticast mode [ 18.433478] veth1: left allmulticast mode [ 18.433516] veth1.100: left promiscuous mode [ 18.433558] veth1: left promiscuous mode [ 18.433613] br1: port 1(veth1.100) entered disabled state