[ 2.209295] ip (249) used greatest stack depth: 12392 bytes left [ 2.505005] 8021q: 802.1Q VLAN Support v1.8 [ 2.680039] br0: port 1(veth1) entered blocking state [ 2.680157] br0: port 1(veth1) entered disabled state [ 2.680298] veth1: entered allmulticast mode [ 2.680415] veth1: entered promiscuous mode [ 2.692189] br0: port 2(veth2) entered blocking state [ 2.692318] br0: port 2(veth2) entered disabled state [ 2.692433] veth2: entered allmulticast mode [ 2.692570] veth2: entered promiscuous mode [ 2.717833] br0: port 1(veth1) entered blocking state [ 2.717934] br0: port 1(veth1) entered forwarding state [ 2.731337] br0: port 2(veth2) entered blocking state [ 2.731411] br0: port 2(veth2) entered forwarding state [ 28.238270] GACT probability NOT on [ 28.239515] tc (365) used greatest stack depth: 11840 bytes left [ 50.663970] br1: port 1(veth0) entered blocking state [ 50.664045] br1: port 1(veth0) entered disabled state [ 50.664091] veth0: entered allmulticast mode [ 50.664199] veth0: entered promiscuous mode [ 50.675228] br1: port 1(veth0) entered blocking state [ 50.675364] br1: port 1(veth0) entered forwarding state [ 52.722241] veth0: left allmulticast mode [ 52.722326] veth0: left promiscuous mode [ 52.722384] br1: port 1(veth0) entered disabled state [ 52.744207] ------------[ cut here ]------------ [ 52.744338] refcount_t: underflow; use-after-free. [ 52.744413] WARNING: CPU: 0 PID: 590 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 52.744497] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc 8021q vrf veth [ 52.744592] CPU: 0 UID: 0 PID: 590 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 52.744671] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 52.744733] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 52.744785] Code: ab 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 ab 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 [ 52.744933] RSP: 0018:ffffb40340b8f730 EFLAGS: 00010282 [ 52.744988] RAX: 0000000000000000 RBX: ffffb40340b8f740 RCX: 00000000ffffdfff [ 52.745055] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 52.745118] RBP: ffffb40340b8f248 R08: ffffffffabb56a28 R09: 00000000ffffdfff [ 52.745191] R10: ffffffffaba76a40 R11: ffffffffabb26a40 R12: dead000000000122 [ 52.745258] R13: 00000000fffc3993 R14: 0000000000000001 R15: ffff8ff042f61000 [ 52.745328] FS: 00007fce250a6800(0000) GS:ffff8ff0d29d9000(0000) knlGS:0000000000000000 [ 52.745402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.745465] CR2: 00000000004e68d0 CR3: 00000000030c1003 CR4: 0000000000772ef0 [ 52.745529] PKRU: 55555554 [ 52.745555] Call Trace: [ 52.745585] [ 52.745610] netdev_run_todo+0x21a/0x550 [ 52.745658] rtnl_dellink+0x15b/0x350 [ 52.745703] ? virtio_fs_enqueue_req+0x352/0x570 [ 52.745754] ? netdev_run_todo+0x63/0x550 [ 52.745791] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 52.745839] rtnetlink_rcv_msg+0x358/0x400 [ 52.745877] ? get_page_from_freelist+0x15b4/0x1770 [ 52.745928] ? rtnl_calcit.isra.0+0x110/0x110 [ 52.745979] netlink_rcv_skb+0x57/0x100 [ 52.746021] netlink_unicast+0x252/0x380 [ 52.746058] ? __alloc_skb+0xdb/0x190 [ 52.746099] netlink_sendmsg+0x1be/0x3e0 [ 52.746137] ____sys_sendmsg+0x132/0x260 [ 52.746182] ? copy_msghdr_from_user+0x6c/0xa0 [ 52.746232] ___sys_sendmsg+0x87/0xd0 [ 52.746270] ? do_wp_page+0x369/0xe90 [ 52.746311] ? ___pte_offset_map+0x1b/0xd0 [ 52.746349] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 52.746400] ? fsnotify_grab_connector+0x48/0x80 [ 52.746447] ? fsnotify_destroy_marks+0x29/0x150 [ 52.746495] __sys_sendmsg+0x71/0xd0 [ 52.746533] do_syscall_64+0xa4/0xfd0 [ 52.746575] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 52.746626] RIP: 0033:0x7fce252741d7 [ 52.746664] 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 [ 52.746810] RSP: 002b:00007fff2f6df108 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 52.746878] RAX: ffffffffffffffda RBX: 00007fff2f6df830 RCX: 00007fce252741d7 [ 52.746945] RDX: 0000000000000000 RSI: 00007fff2f6df170 RDI: 0000000000000005 [ 52.747006] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 52.747066] R10: 00007fce25170f60 R11: 0000000000000246 R12: 0000000000000002 [ 52.747134] R13: 00000000690de628 R14: 0000000000499600 R15: 0000000000000000 [ 52.747200] [ 52.747226] ---[ end trace 0000000000000000 ]--- [ 52.747951] ip (590) used greatest stack depth: 11744 bytes left [ 60.574516] br0: vlan filtering disabled, automatically disabling multicast vlan snooping [ 60.637208] br0: port 2(veth2) entered disabled state [ 60.648428] br0: port 1(veth1) entered disabled state [ 60.660317] veth2: left allmulticast mode [ 60.660391] veth2: left promiscuous mode [ 60.660434] br0: port 2(veth2) entered disabled state [ 60.660597] veth1: left allmulticast mode [ 60.660632] veth1: left promiscuous mode [ 60.660671] br0: port 1(veth1) entered disabled state