[ 2.533711] ip (253) used greatest stack depth: 12136 bytes left [ 2.693229] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 2.696087] Bridge firewalling registered [ 2.903840] 8021q: 802.1Q VLAN Support v1.8 [ 2.994641] br0: port 1(vtep-host) entered blocking state [ 2.994710] br0: port 1(vtep-host) entered disabled state [ 2.994782] vtep-host: entered allmulticast mode [ 2.994874] vtep-host: entered promiscuous mode [ 3.085583] br0: port 2(vxd) entered blocking state [ 3.085651] br0: port 2(vxd) entered disabled state [ 3.085720] vxd: entered allmulticast mode [ 3.085811] vxd: entered promiscuous mode [ 3.200895] br0: port 2(vxd) entered blocking state [ 3.200951] br0: port 2(vxd) entered forwarding state [ 3.905480] br0: port 1(vtep-host) entered blocking state [ 3.905650] br0: port 1(vtep-host) entered forwarding state [ 4.883425] ------------[ cut here ]------------ [ 4.883514] refcount_t: underflow; use-after-free. [ 4.883593] WARNING: CPU: 0 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 4.883687] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel 8021q veth br_netfilter bridge stp llc [ 4.883807] CPU: 0 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 4.883902] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4.883965] Workqueue: netns cleanup_net [ 4.884010] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 4.884065] Code: 8c e8 18 ed b9 ff 90 0f 0b 90 90 c3 80 3d d9 ea ea 00 00 75 89 c6 05 d0 ea ea 00 01 90 48 c7 c7 78 de 51 8c e8 f5 ec b9 ff 90 <0f> 0b 90 90 c3 80 3d b4 ea ea 00 00 0f 85 62 ff ff ff c6 05 a7 ea [ 4.884244] RSP: 0018:ffffb3fb80257d50 EFLAGS: 00010286 [ 4.884300] RAX: 0000000000000000 RBX: ffffb3fb80257d60 RCX: 00000000ffffdfff [ 4.884384] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 4.884463] RBP: ffffb3fb80257868 R08: ffffffff8c956d28 R09: 00000000ffffdfff [ 4.884546] R10: ffffffff8c876d40 R11: ffffffff8c926d40 R12: dead000000000122 [ 4.884618] R13: 00000000fffb7e93 R14: 0000000000000001 R15: ffff8e1c855f9000 [ 4.884694] FS: 0000000000000000(0000) GS:ffff8e1d31bd8000(0000) knlGS:0000000000000000 [ 4.884776] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.884848] CR2: 00007f463f768a20 CR3: 000000000a641001 CR4: 0000000000772ef0 [ 4.884928] PKRU: 55555554 [ 4.884957] Call Trace: [ 4.884985] [ 4.885016] netdev_run_todo+0x21a/0x550 [ 4.885064] ops_undo_list+0x1e3/0x1f0 [ 4.885114] cleanup_net+0x1b7/0x2b0 [ 4.885161] process_one_work+0x162/0x380 [ 4.885212] worker_thread+0x299/0x3c0 [ 4.885252] ? rescuer_thread+0x4c0/0x4c0 [ 4.885296] kthread+0x101/0x1f0 [ 4.885341] ? kthreads_online_cpu+0x110/0x110 [ 4.885409] ? kthreads_online_cpu+0x110/0x110 [ 4.885466] ret_from_fork+0x11c/0x140 [ 4.885513] ? kthreads_online_cpu+0x110/0x110 [ 4.885570] ret_from_fork_asm+0x11/0x20 [ 4.885619] [ 4.885643] ---[ end trace 0000000000000000 ]--- [ 4.885906] br0: port 1(vtep-host) entered disabled state [ 4.886319] vtep-host (unregistering): left allmulticast mode [ 4.886406] vtep-host (unregistering): left promiscuous mode [ 4.886473] br0: port 1(vtep-host) entered disabled state [ 4.927395] vxd: left allmulticast mode [ 4.927463] vxd: left promiscuous mode [ 4.927514] br0: port 2(vxd) entered disabled state