[ 2.642702] 8021q: 802.1Q VLAN Support v1.8 [ 3.051366] br1: port 1(vx100) entered blocking state [ 3.051438] br1: port 1(vx100) entered disabled state [ 3.051510] vx100: entered allmulticast mode [ 3.051613] vx100: entered promiscuous mode [ 3.051667] br1: port 1(vx100) entered blocking state [ 3.051731] br1: port 1(vx100) entered forwarding state [ 3.072169] br1: port 2(veth1) entered blocking state [ 3.072233] br1: port 2(veth1) entered disabled state [ 3.072289] veth1: entered allmulticast mode [ 3.072364] veth1: entered promiscuous mode [ 3.082926] br1: port 2(veth1) entered blocking state [ 3.082992] br1: port 2(veth1) entered forwarding state [ 3.103946] br1: port 3(veth2) entered blocking state [ 3.104061] br1: port 3(veth2) entered disabled state [ 3.104155] veth2: entered allmulticast mode [ 3.104282] veth2: entered promiscuous mode [ 3.115203] br1: port 3(veth2) entered blocking state [ 3.115324] br1: port 3(veth2) entered forwarding state [ 3.520689] br2: port 1(w1) entered blocking state [ 3.520790] br2: port 1(w1) entered disabled state [ 3.520882] w1: entered allmulticast mode [ 3.520987] w1: entered promiscuous mode [ 3.598456] br2: port 2(vx100) entered blocking state [ 3.598570] br2: port 2(vx100) entered disabled state [ 3.598654] vx100: entered allmulticast mode [ 3.598766] vx100: entered promiscuous mode [ 3.598831] br2: port 2(vx100) entered blocking state [ 3.598899] br2: port 2(vx100) entered forwarding state [ 3.695973] br2: port 1(w1) entered blocking state [ 3.696094] br2: port 1(w1) entered forwarding state [ 3.992119] br2: port 1(w1) entered blocking state [ 3.992231] br2: port 1(w1) entered disabled state [ 3.992312] w1: entered allmulticast mode [ 3.992404] w1: entered promiscuous mode [ 4.072092] br2: port 2(vx100) entered blocking state [ 4.072167] br2: port 2(vx100) entered disabled state [ 4.072219] vx100: entered allmulticast mode [ 4.072308] vx100: entered promiscuous mode [ 4.072365] br2: port 2(vx100) entered blocking state [ 4.072406] br2: port 2(vx100) entered forwarding state [ 4.072935] ip (438) used greatest stack depth: 12088 bytes left [ 4.173094] br2: port 1(w1) entered blocking state [ 4.173184] br2: port 1(w1) entered forwarding state [ 12.613781] vx100: left allmulticast mode [ 12.613857] vx100: left promiscuous mode [ 12.613916] br2: port 2(vx100) entered disabled state [ 12.614129] w1: left allmulticast mode [ 12.614171] w1: left promiscuous mode [ 12.614220] br2: port 1(w1) entered disabled state [ 12.630883] ------------[ cut here ]------------ [ 12.630968] refcount_t: underflow; use-after-free. [ 12.631056] WARNING: CPU: 3 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 12.631153] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth [ 12.631267] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 12.631365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.631433] Workqueue: netns cleanup_net [ 12.631481] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 12.631542] Code: a9 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 91 a9 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 [ 12.631735] RSP: 0000:ffffc12c0024fd50 EFLAGS: 00010286 [ 12.631795] RAX: 0000000000000000 RBX: ffffc12c0024fd60 RCX: 00000000ffffdfff [ 12.631880] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 12.631960] RBP: ffffc12c0024f868 R08: ffffffffa9d56a28 R09: 00000000ffffdfff [ 12.632039] R10: ffffffffa9c76a40 R11: ffffffffa9d26a40 R12: dead000000000122 [ 12.632116] R13: 00000000fffb9cf4 R14: 0000000000000001 R15: ffff9b3f49596000 [ 12.632187] FS: 0000000000000000(0000) GS:ffff9b3fd4959000(0000) knlGS:0000000000000000 [ 12.632273] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.632345] CR2: 00007efcacdac3f0 CR3: 00000000038dc005 CR4: 0000000000772ef0 [ 12.632428] PKRU: 55555554 [ 12.632459] Call Trace: [ 12.632488] [ 12.632526] netdev_run_todo+0x21a/0x550 [ 12.632576] ops_undo_list+0x1e3/0x1f0 [ 12.632621] cleanup_net+0x1b7/0x2b0 [ 12.632662] process_one_work+0x162/0x380 [ 12.632710] worker_thread+0x299/0x3c0 [ 12.632758] ? rescuer_thread+0x4c0/0x4c0 [ 12.632805] kthread+0x101/0x1f0 [ 12.632859] ? kthreads_online_cpu+0x110/0x110 [ 12.632916] ? kthreads_online_cpu+0x110/0x110 [ 12.632969] ret_from_fork+0x11c/0x140 [ 12.633018] ? kthreads_online_cpu+0x110/0x110 [ 12.633080] ret_from_fork_asm+0x11/0x20 [ 12.633129] [ 12.633162] ---[ end trace 0000000000000000 ]--- [ 12.671956] vx100: left allmulticast mode [ 12.672032] vx100: left promiscuous mode [ 12.672085] br2: port 2(vx100) entered disabled state [ 12.672280] w1: left allmulticast mode [ 12.672326] w1: left promiscuous mode [ 12.672371] br2: port 1(w1) entered disabled state [ 12.946047] br1: port 3(veth2) entered disabled state [ 12.955822] veth2: left allmulticast mode [ 12.955891] veth2: left promiscuous mode [ 12.955941] br1: port 3(veth2) entered disabled state [ 12.975150] br1: port 2(veth1) entered disabled state [ 12.984579] veth1: left allmulticast mode [ 12.984634] veth1: left promiscuous mode [ 12.984674] br1: port 2(veth1) entered disabled state [ 12.994473] vx100: left allmulticast mode [ 12.994570] vx100: left promiscuous mode [ 12.994657] br1: port 1(vx100) entered disabled state