[ 2.169566] ip (248) used greatest stack depth: 12344 bytes left [ 2.213804] ip (257) used greatest stack depth: 12296 bytes left [ 2.411544] 8021q: 802.1Q VLAN Support v1.8 [ 2.836305] br1: port 1(veth1.100) entered blocking state [ 2.836443] br1: port 1(veth1.100) entered disabled state [ 2.836546] veth1.100: entered allmulticast mode [ 2.836624] veth1: entered allmulticast mode [ 2.836764] veth1.100: entered promiscuous mode [ 2.836844] veth1: entered promiscuous mode [ 2.870602] br1: port 1(veth1.100) entered blocking state [ 2.870734] br1: port 1(veth1.100) entered forwarding state [ 2.945790] br2: port 1(veth1.200) entered blocking state [ 2.945919] br2: port 1(veth1.200) entered disabled state [ 2.946019] veth1.200: entered allmulticast mode [ 2.946154] veth1.200: entered promiscuous mode [ 2.980963] br2: port 1(veth1.200) entered blocking state [ 2.981040] br2: port 1(veth1.200) entered forwarding state [ 12.120278] veth1.100: left allmulticast mode [ 12.120372] veth1.100: left promiscuous mode [ 12.120456] br1: port 1(veth1.100) entered disabled state [ 12.131589] veth1.200: left allmulticast mode [ 12.131667] veth1: left allmulticast mode [ 12.131715] veth1.200: left promiscuous mode [ 12.131768] veth1: left promiscuous mode [ 12.131821] br2: port 1(veth1.200) entered disabled state [ 14.152138] br2: port 1(veth1.200) entered blocking state [ 14.152210] br2: port 1(veth1.200) entered disabled state [ 14.152280] veth1.200: entered allmulticast mode [ 14.152328] veth1: entered allmulticast mode [ 14.152417] veth1.200: entered promiscuous mode [ 14.152471] veth1: entered promiscuous mode [ 14.152521] br2: port 1(veth1.200) entered blocking state [ 14.152567] br2: port 1(veth1.200) entered forwarding state [ 14.164320] br1: port 1(veth1.100) entered blocking state [ 14.164429] br1: port 1(veth1.100) entered disabled state [ 14.164510] veth1.100: entered allmulticast mode [ 14.164614] veth1.100: entered promiscuous mode [ 14.164688] br1: port 1(veth1.100) entered blocking state [ 14.164746] br1: port 1(veth1.100) entered forwarding state [ 18.229454] veth1.200: left allmulticast mode [ 18.229535] veth1.200: left promiscuous mode [ 18.229613] br2: port 1(veth1.200) entered disabled state [ 18.258389] ------------[ cut here ]------------ [ 18.258534] refcount_t: underflow; use-after-free. [ 18.258614] WARNING: CPU: 2 PID: 455 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 18.258694] Modules linked in: bridge stp llc 8021q vrf veth [ 18.258767] CPU: 2 UID: 0 PID: 455 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 18.258858] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.258927] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 18.258992] Code: 92 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 11 92 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 [ 18.259148] RSP: 0018:ffffc198808ef730 EFLAGS: 00010282 [ 18.259207] RAX: 0000000000000000 RBX: ffffc198808ef740 RCX: 00000000ffffdfff [ 18.259283] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 18.259360] RBP: ffffc198808ef248 R08: ffffffff92556a28 R09: 00000000ffffdfff [ 18.259445] R10: ffffffff92476a40 R11: ffffffff92526a40 R12: dead000000000122 [ 18.259525] R13: 00000000fffbb2f2 R14: 0000000000000001 R15: ffff9c4ec30d1000 [ 18.259600] FS: 00007fcea0408800(0000) GS:ffff9c4f6c0d9000(0000) knlGS:0000000000000000 [ 18.259673] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.259741] CR2: 00000000004e68d8 CR3: 0000000002f30004 CR4: 0000000000772ef0 [ 18.259816] PKRU: 55555554 [ 18.259855] Call Trace: [ 18.259897] [ 18.259941] netdev_run_todo+0x21a/0x550 [ 18.260004] rtnl_dellink+0x15b/0x350 [ 18.260060] ? virtio_fs_enqueue_req+0x352/0x570 [ 18.260168] ? netdev_run_todo+0x63/0x550 [ 18.260239] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 18.260313] rtnetlink_rcv_msg+0x358/0x400 [ 18.260378] ? get_page_from_freelist+0x15b4/0x1770 [ 18.260459] ? rtnl_calcit.isra.0+0x110/0x110 [ 18.260535] netlink_rcv_skb+0x57/0x100 [ 18.260610] netlink_unicast+0x252/0x380 [ 18.260670] ? __alloc_skb+0xdb/0x190 [ 18.260733] netlink_sendmsg+0x1be/0x3e0 [ 18.260797] ____sys_sendmsg+0x132/0x260 [ 18.260862] ? copy_msghdr_from_user+0x6c/0xa0 [ 18.260943] ___sys_sendmsg+0x87/0xd0 [ 18.261010] ? do_wp_page+0x369/0xe90 [ 18.261084] ? ___pte_offset_map+0x1b/0xd0 [ 18.261152] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 18.261230] ? fsnotify_grab_connector+0x48/0x80 [ 18.261305] ? fsnotify_destroy_marks+0x29/0x150 [ 18.261383] __sys_sendmsg+0x71/0xd0 [ 18.261451] do_syscall_64+0xa4/0xfd0 [ 18.261522] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.261598] RIP: 0033:0x7fcea05d61d7 [ 18.261661] 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 [ 18.261849] RSP: 002b:00007ffcdfedaee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.261948] RAX: ffffffffffffffda RBX: 00007ffcdfedb610 RCX: 00007fcea05d61d7 [ 18.262049] RDX: 0000000000000000 RSI: 00007ffcdfedaf50 RDI: 0000000000000005 [ 18.262148] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 18.262247] R10: 00007fcea04d2f60 R11: 0000000000000246 R12: 0000000000000002 [ 18.262339] R13: 00000000690ded6c R14: 0000000000499600 R15: 0000000000000000 [ 18.262450] [ 18.262482] ---[ end trace 0000000000000000 ]--- [ 18.263098] ip (455) used greatest stack depth: 11744 bytes left [ 18.313685] veth1.100: left allmulticast mode [ 18.313785] veth1: left allmulticast mode [ 18.313851] veth1.100: left promiscuous mode [ 18.313921] veth1: left promiscuous mode [ 18.313990] br1: port 1(veth1.100) entered disabled state