[ 2.217626] ip (247) used greatest stack depth: 12368 bytes left [ 2.660813] 8021q: 802.1Q VLAN Support v1.8 [ 3.114089] br1: port 1(vx100) entered blocking state [ 3.114171] br1: port 1(vx100) entered disabled state [ 3.114257] vx100: entered allmulticast mode [ 3.114379] vx100: entered promiscuous mode [ 3.114437] br1: port 1(vx100) entered blocking state [ 3.114500] br1: port 1(vx100) entered forwarding state [ 3.137468] br1: port 2(veth1) entered blocking state [ 3.137558] br1: port 2(veth1) entered disabled state [ 3.137642] veth1: entered allmulticast mode [ 3.137762] veth1: entered promiscuous mode [ 3.149800] br1: port 2(veth1) entered blocking state [ 3.149904] br1: port 2(veth1) entered forwarding state [ 3.199974] br2: port 1(vx200) entered blocking state [ 3.200096] br2: port 1(vx200) entered disabled state [ 3.200179] vx200: entered allmulticast mode [ 3.200317] vx200: entered promiscuous mode [ 3.200434] br2: port 1(vx200) entered blocking state [ 3.200492] br2: port 1(vx200) entered forwarding state [ 3.240696] br2: port 2(veth2.20) entered blocking state [ 3.240830] br2: port 2(veth2.20) entered disabled state [ 3.240938] veth2.20: entered allmulticast mode [ 3.241017] veth2: entered allmulticast mode [ 3.241136] veth2.20: entered promiscuous mode [ 3.241208] veth2: entered promiscuous mode [ 3.252626] br2: port 2(veth2.20) entered blocking state [ 3.252699] br2: port 2(veth2.20) entered forwarding state [ 3.290366] ip (349) used greatest stack depth: 12168 bytes left [ 3.704076] br3: port 1(w1) entered blocking state [ 3.704151] br3: port 1(w1) entered disabled state [ 3.704237] w1: entered allmulticast mode [ 3.704328] w1: entered promiscuous mode [ 3.772584] br3: port 2(vx100) entered blocking state [ 3.772663] br3: port 2(vx100) entered disabled state [ 3.772729] vx100: entered allmulticast mode [ 3.772832] vx100: entered promiscuous mode [ 3.772898] br3: port 2(vx100) entered blocking state [ 3.772953] br3: port 2(vx100) entered forwarding state [ 3.866821] br3: port 1(w1) entered blocking state [ 3.866924] br3: port 1(w1) entered forwarding state [ 4.248905] br3: port 1(w1) entered blocking state [ 4.248970] br3: port 1(w1) entered disabled state [ 4.249028] w1: entered allmulticast mode [ 4.249104] w1: entered promiscuous mode [ 4.315689] br3: port 2(vx200) entered blocking state [ 4.315765] br3: port 2(vx200) entered disabled state [ 4.315822] vx200: entered allmulticast mode [ 4.315921] vx200: entered promiscuous mode [ 4.315997] br3: port 2(vx200) entered blocking state [ 4.316053] br3: port 2(vx200) entered forwarding state [ 4.405115] br3: port 1(w1) entered blocking state [ 4.405207] br3: port 1(w1) entered forwarding state [ 4.674662] br3: port 3(w1.20) entered blocking state [ 4.674778] br3: port 3(w1.20) entered disabled state [ 4.674883] w1.20: entered allmulticast mode [ 4.674997] w1.20: entered promiscuous mode [ 4.766908] br3: port 3(w1.20) entered blocking state [ 4.767017] br3: port 3(w1.20) entered forwarding state [ 4.829299] IPv6: w2: IPv6 duplicate address fe80::981f:1cff:fe5a:b887 used by 9a:1f:1c:5a:b8:87 detected! [ 12.110919] w1.20: left allmulticast mode [ 12.110988] w1.20: left promiscuous mode [ 12.111057] br3: port 3(w1.20) entered disabled state [ 12.111261] vx200: left allmulticast mode [ 12.111310] vx200: left promiscuous mode [ 12.111353] br3: port 2(vx200) entered disabled state [ 12.111656] w1: left allmulticast mode [ 12.111707] w1: left promiscuous mode [ 12.111748] br3: port 1(w1) entered disabled state [ 12.130238] ------------[ cut here ]------------ [ 12.130320] refcount_t: underflow; use-after-free. [ 12.130381] WARNING: CPU: 3 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 12.130468] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth [ 12.130563] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 12.130659] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.130720] Workqueue: netns cleanup_net [ 12.130766] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 12.130820] Code: b7 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 31 b7 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 [ 12.130990] RSP: 0018:ffffb76a00067d50 EFLAGS: 00010286 [ 12.131040] RAX: 0000000000000000 RBX: ffffb76a00067d60 RCX: 00000000ffffdfff [ 12.131113] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 12.131185] RBP: ffffb76a00067868 R08: ffffffffb7756a28 R09: 00000000ffffdfff [ 12.131262] R10: ffffffffb7676a40 R11: ffffffffb7726a40 R12: dead000000000122 [ 12.131343] R13: 00000000fffb9af5 R14: 0000000000000001 R15: ffff8f11095a6000 [ 12.131427] FS: 0000000000000000(0000) GS:ffff8f1186f59000(0000) knlGS:0000000000000000 [ 12.131501] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.131559] CR2: 000055a780358dec CR3: 000000000590e001 CR4: 0000000000772ef0 [ 12.131636] PKRU: 55555554 [ 12.131658] Call Trace: [ 12.131684] [ 12.131714] netdev_run_todo+0x21a/0x550 [ 12.131761] ops_undo_list+0x1e3/0x1f0 [ 12.131802] cleanup_net+0x1b7/0x2b0 [ 12.131836] process_one_work+0x162/0x380 [ 12.131880] worker_thread+0x299/0x3c0 [ 12.131915] ? rescuer_thread+0x4c0/0x4c0 [ 12.131952] kthread+0x101/0x1f0 [ 12.131989] ? kthreads_online_cpu+0x110/0x110 [ 12.132039] ? kthreads_online_cpu+0x110/0x110 [ 12.132087] ret_from_fork+0x11c/0x140 [ 12.132129] ? kthreads_online_cpu+0x110/0x110 [ 12.132179] ret_from_fork_asm+0x11/0x20 [ 12.132228] [ 12.132254] ---[ end trace 0000000000000000 ]--- [ 12.191645] vx100: left allmulticast mode [ 12.191714] vx100: left promiscuous mode [ 12.191771] br3: port 2(vx100) entered disabled state [ 12.191926] w1: left allmulticast mode [ 12.191972] w1: left promiscuous mode [ 12.192016] br3: port 1(w1) entered disabled state [ 12.458017] vx200: left allmulticast mode [ 12.458091] vx200: left promiscuous mode [ 12.458143] br2: port 1(vx200) entered disabled state [ 12.501837] br2: port 2(veth2.20) entered disabled state [ 12.502025] veth2.20 (unregistering): left allmulticast mode [ 12.502078] veth2: left allmulticast mode [ 12.502120] veth2.20 (unregistering): left promiscuous mode [ 12.502169] veth2: left promiscuous mode [ 12.502214] br2: port 2(veth2.20) entered disabled state [ 12.571235] br1: port 2(veth1) entered disabled state [ 12.583217] veth1: left allmulticast mode [ 12.583315] veth1: left promiscuous mode [ 12.583384] br1: port 2(veth1) entered disabled state [ 12.594651] vx100: left allmulticast mode [ 12.594721] vx100: left promiscuous mode [ 12.594767] br1: port 1(vx100) entered disabled state