[ 2.189744] ip (248) used greatest stack depth: 12408 bytes left [ 2.234710] ip (255) used greatest stack depth: 12360 bytes left [ 2.285510] ip (261) used greatest stack depth: 12344 bytes left [ 2.963824] GACT probability NOT on [ 3.306725] br: port 1(veth1) entered blocking state [ 3.306817] br: port 1(veth1) entered disabled state [ 3.306874] veth1: entered allmulticast mode [ 3.306969] veth1: entered promiscuous mode [ 3.307012] br: port 1(veth1) entered blocking state [ 3.307053] br: port 1(veth1) entered forwarding state [ 3.375613] br: port 2(veth2) entered blocking state [ 3.375743] br: port 2(veth2) entered disabled state [ 3.375841] veth2: entered allmulticast mode [ 3.375962] veth2: entered promiscuous mode [ 3.376032] br: port 2(veth2) entered blocking state [ 3.376107] br: port 2(veth2) entered forwarding state [ 13.769780] ------------[ cut here ]------------ [ 13.769908] refcount_t: underflow; use-after-free. [ 13.769971] WARNING: CPU: 1 PID: 734 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 13.770055] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress vrf veth [ 13.770139] CPU: 1 UID: 0 PID: 734 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 13.770228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.770287] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 13.770343] 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 71 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 [ 13.770523] RSP: 0018:ffffbc1b80c07730 EFLAGS: 00010282 [ 13.770572] RAX: 0000000000000000 RBX: ffffbc1b80c07740 RCX: 00000000ffffdfff [ 13.770655] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 13.770736] RBP: ffffbc1b80c07248 R08: ffffffff92b56a28 R09: 00000000ffffdfff [ 13.770817] R10: ffffffff92a76a40 R11: ffffffff92b26a40 R12: dead000000000122 [ 13.770891] R13: 00000000fffba166 R14: 0000000000000001 R15: ffff995d44d1f000 [ 13.770964] FS: 00007f6695960800(0000) GS:ffff995deba59000(0000) knlGS:0000000000000000 [ 13.771036] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 13.771093] CR2: 000055789dd74db0 CR3: 000000000602b004 CR4: 0000000000772ef0 [ 13.771142] PKRU: 55555554 [ 13.771163] Call Trace: [ 13.771182] [ 13.771202] netdev_run_todo+0x21a/0x550 [ 13.771245] rtnl_dellink+0x15b/0x350 [ 13.771283] ? virtio_fs_enqueue_req+0x352/0x570 [ 13.771327] ? netdev_run_todo+0x63/0x550 [ 13.771358] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 13.771397] rtnetlink_rcv_msg+0x358/0x400 [ 13.771428] ? get_page_from_freelist+0x15b4/0x1770 [ 13.771471] ? rtnl_calcit.isra.0+0x110/0x110 [ 13.771509] netlink_rcv_skb+0x57/0x100 [ 13.771544] netlink_unicast+0x252/0x380 [ 13.771575] ? __alloc_skb+0xdb/0x190 [ 13.771612] netlink_sendmsg+0x1be/0x3e0 [ 13.771643] ____sys_sendmsg+0x132/0x260 [ 13.771679] ? copy_msghdr_from_user+0x6c/0xa0 [ 13.771722] ___sys_sendmsg+0x87/0xd0 [ 13.771763] ? set_next_entity+0xc8/0x240 [ 13.771799] ? finish_task_switch.isra.0+0x8d/0x270 [ 13.771850] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 13.771890] ? fsnotify_grab_connector+0x48/0x80 [ 13.771932] ? fsnotify_destroy_marks+0x29/0x150 [ 13.771971] __sys_sendmsg+0x71/0xd0 [ 13.772005] do_syscall_64+0xa4/0xfd0 [ 13.772037] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.772085] RIP: 0033:0x7f6695b2e1d7 [ 13.772121] 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 [ 13.772237] RSP: 002b:00007ffe7b0f5f28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 13.772292] RAX: ffffffffffffffda RBX: 00007ffe7b0f6650 RCX: 00007f6695b2e1d7 [ 13.772338] RDX: 0000000000000000 RSI: 00007ffe7b0f5f90 RDI: 0000000000000005 [ 13.772384] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 13.772432] R10: 00007f6695a2af60 R11: 0000000000000246 R12: 0000000000000002 [ 13.772478] R13: 00000000690de5f0 R14: 0000000000499600 R15: 0000000000000000 [ 13.772525] [ 13.772547] ---[ end trace 0000000000000000 ]--- [ 13.773066] ip (734) used greatest stack depth: 11744 bytes left [ 16.351326] veth2: left allmulticast mode [ 16.351432] veth2: left promiscuous mode [ 16.351481] br: port 2(veth2) entered disabled state [ 16.411515] veth1: left allmulticast mode [ 16.411604] veth1: left promiscuous mode [ 16.411673] br: port 1(veth1) entered disabled state [ 16.725377] br: port 1(veth1) entered blocking state [ 16.725464] br: port 1(veth1) entered disabled state [ 16.725533] veth1: entered allmulticast mode [ 16.725634] veth1: entered promiscuous mode [ 16.725684] br: port 1(veth1) entered blocking state [ 16.725750] br: port 1(veth1) entered forwarding state [ 16.792875] br: port 2(veth2) entered blocking state [ 16.793028] br: port 2(veth2) entered disabled state [ 16.793142] veth2: entered allmulticast mode [ 16.793286] veth2: entered promiscuous mode [ 16.793380] br: port 2(veth2) entered blocking state [ 16.793466] br: port 2(veth2) entered forwarding state [ 31.946521] veth2: left allmulticast mode [ 31.946628] veth2: left promiscuous mode [ 31.946697] br: port 2(veth2) entered disabled state [ 32.000228] veth1: left allmulticast mode [ 32.000295] veth1: left promiscuous mode [ 32.000341] br: port 1(veth1) entered disabled state [ 32.240879] br: port 1(veth1) entered blocking state [ 32.240985] br: port 1(veth1) entered disabled state [ 32.241061] veth1: entered allmulticast mode [ 32.241182] veth1: entered promiscuous mode [ 32.241246] br: port 1(veth1) entered blocking state [ 32.241306] br: port 1(veth1) entered forwarding state [ 32.306907] br: port 2(veth2) entered blocking state [ 32.306991] br: port 2(veth2) entered disabled state [ 32.307065] veth2: entered allmulticast mode [ 32.307173] veth2: entered promiscuous mode [ 32.307266] br: port 2(veth2) entered blocking state [ 32.307331] br: port 2(veth2) entered forwarding state [ 45.236957] veth2: left allmulticast mode [ 45.237061] veth2: left promiscuous mode [ 45.237137] br: port 2(veth2) entered disabled state [ 45.292621] veth1: left allmulticast mode [ 45.292697] veth1: left promiscuous mode [ 45.292797] br: port 1(veth1) entered disabled state [ 45.591008] br: port 1(veth1) entered blocking state [ 45.591099] br: port 1(veth1) entered disabled state [ 45.591158] veth1: entered allmulticast mode [ 45.591257] veth1: entered promiscuous mode [ 45.591302] br: port 1(veth1) entered blocking state [ 45.591352] br: port 1(veth1) entered forwarding state [ 45.653797] br: port 2(veth2) entered blocking state [ 45.653874] br: port 2(veth2) entered disabled state [ 45.653947] veth2: entered allmulticast mode [ 45.654050] veth2: entered promiscuous mode [ 45.654092] br: port 2(veth2) entered blocking state [ 45.654132] br: port 2(veth2) entered forwarding state [ 60.660383] veth2: left allmulticast mode [ 60.660446] veth2: left promiscuous mode [ 60.660494] br: port 2(veth2) entered disabled state [ 60.714950] veth1: left allmulticast mode [ 60.715067] veth1: left promiscuous mode [ 60.715146] br: port 1(veth1) entered disabled state [ 60.969368] br: port 1(veth1) entered blocking state [ 60.969483] br: port 1(veth1) entered disabled state [ 60.969566] veth1: entered allmulticast mode [ 60.969690] veth1: entered promiscuous mode [ 60.969773] br: port 1(veth1) entered blocking state [ 60.969844] br: port 1(veth1) entered forwarding state [ 61.032333] br: port 2(veth2) entered blocking state [ 61.032418] br: port 2(veth2) entered disabled state [ 61.032482] veth2: entered allmulticast mode [ 61.032590] veth2: entered promiscuous mode [ 61.032653] br: port 2(veth2) entered blocking state [ 61.032711] br: port 2(veth2) entered forwarding state [ 67.366480] veth2: left allmulticast mode [ 67.366574] veth2: left promiscuous mode [ 67.366626] br: port 2(veth2) entered disabled state [ 67.423865] veth1: left allmulticast mode [ 67.423939] veth1: left promiscuous mode [ 67.423987] br: port 1(veth1) entered disabled state