[ 2.288346] br0: port 1(veth1) entered blocking state [ 2.288422] br0: port 1(veth1) entered disabled state [ 2.288513] veth1: entered allmulticast mode [ 2.288606] veth1: entered promiscuous mode [ 2.311783] br0: port 1(veth1) entered blocking state [ 2.311871] br0: port 1(veth1) entered forwarding state [ 7.539931] br0: port 1(veth1) entered disabled state [ 7.552548] veth1: left allmulticast mode [ 7.552613] veth1: left promiscuous mode [ 7.552664] br0: port 1(veth1) entered disabled state [ 7.568845] ------------[ cut here ]------------ [ 7.568958] refcount_t: underflow; use-after-free. [ 7.569040] WARNING: CPU: 3 PID: 316 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 7.569124] Modules linked in: bridge stp llc vrf veth [ 7.569197] CPU: 3 UID: 0 PID: 316 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 7.569277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 7.569334] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 7.569386] Code: b4 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 b4 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 [ 7.569555] RSP: 0018:ffffa016c04d7730 EFLAGS: 00010282 [ 7.569607] RAX: 0000000000000000 RBX: ffffa016c04d7740 RCX: 00000000ffffdfff [ 7.569669] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 7.569729] RBP: ffffa016c04d7248 R08: ffffffffb4d56a28 R09: 00000000ffffdfff [ 7.569790] R10: ffffffffb4c76a40 R11: ffffffffb4d26a40 R12: dead000000000122 [ 7.569857] R13: 00000000fffb8924 R14: 0000000000000001 R15: ffff8fe38335b000 [ 7.569929] FS: 00007f093b97c800(0000) GS:ffff8fe409959000(0000) knlGS:0000000000000000 [ 7.569997] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.570058] CR2: 00000000004e68c8 CR3: 0000000005533004 CR4: 0000000000772ef0 [ 7.570132] PKRU: 55555554 [ 7.570162] Call Trace: [ 7.570188] [ 7.570212] netdev_run_todo+0x21a/0x550 [ 7.570262] rtnl_dellink+0x15b/0x350 [ 7.570304] ? virtio_fs_enqueue_req+0x352/0x570 [ 7.570361] ? netdev_run_todo+0x63/0x550 [ 7.570407] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 7.570462] rtnetlink_rcv_msg+0x358/0x400 [ 7.570501] ? get_page_from_freelist+0x15b4/0x1770 [ 7.570552] ? rtnl_calcit.isra.0+0x110/0x110 [ 7.570603] netlink_rcv_skb+0x57/0x100 [ 7.570644] netlink_unicast+0x252/0x380 [ 7.570677] ? __alloc_skb+0xdb/0x190 [ 7.570715] netlink_sendmsg+0x1be/0x3e0 [ 7.570750] ____sys_sendmsg+0x132/0x260 [ 7.570797] ? copy_msghdr_from_user+0x6c/0xa0 [ 7.570850] ___sys_sendmsg+0x87/0xd0 [ 7.570885] ? do_wp_page+0x369/0xe90 [ 7.570923] ? ___pte_offset_map+0x1b/0xd0 [ 7.570966] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 7.571021] ? fsnotify_grab_connector+0x48/0x80 [ 7.571067] ? fsnotify_destroy_marks+0x29/0x150 [ 7.571120] __sys_sendmsg+0x71/0xd0 [ 7.571161] do_syscall_64+0xa4/0xfd0 [ 7.571206] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 7.571249] RIP: 0033:0x7f093bb4a1d7 [ 7.571291] 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 [ 7.571448] RSP: 002b:00007ffc3daa4098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 7.571503] RAX: ffffffffffffffda RBX: 00007ffc3daa47c0 RCX: 00007f093bb4a1d7 [ 7.571567] RDX: 0000000000000000 RSI: 00007ffc3daa4100 RDI: 0000000000000005 [ 7.571629] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 7.571689] R10: 00007f093ba46f60 R11: 0000000000000246 R12: 0000000000000002 [ 7.571749] R13: 00000000690deefa R14: 0000000000499600 R15: 0000000000000000 [ 7.571826] [ 7.571853] ---[ end trace 0000000000000000 ]--- [ 7.572479] ip (316) used greatest stack depth: 11744 bytes left