[ 2.177571] ip (248) used greatest stack depth: 12408 bytes left [ 2.271835] ip (262) used greatest stack depth: 12296 bytes left [ 2.779847] br1: port 1(veth1) entered blocking state [ 2.779924] br1: port 1(veth1) entered disabled state [ 2.780004] veth1: entered allmulticast mode [ 2.780097] veth1: entered promiscuous mode [ 2.791632] br1: port 1(veth1) entered blocking state [ 2.791721] br1: port 1(veth1) entered forwarding state [ 2.803144] br1: port 2(veth2) entered blocking state [ 2.803210] br1: port 2(veth2) entered disabled state [ 2.803284] veth2: entered allmulticast mode [ 2.803386] veth2: entered promiscuous mode [ 2.815327] br1: port 2(veth2) entered blocking state [ 2.815394] br1: port 2(veth2) entered forwarding state [ 2.857813] 8021q: 802.1Q VLAN Support v1.8 [ 2.967458] GACT probability NOT on [ 2.968839] tc (323) used greatest stack depth: 12000 bytes left [ 8.281691] Mirror/redirect action on [ 34.058347] ------------[ cut here ]------------ [ 34.058452] refcount_t: underflow; use-after-free. [ 34.058536] WARNING: CPU: 3 PID: 544 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 34.058660] Modules linked in: act_mirred cls_flower act_gact cls_matchall 8021q bridge stp llc sch_ingress vrf veth [ 34.058814] CPU: 3 UID: 0 PID: 544 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 34.058927] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.059010] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 34.059059] Code: bd 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 bd 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 [ 34.059294] RSP: 0018:ffffb29840ab7730 EFLAGS: 00010282 [ 34.059345] RAX: 0000000000000000 RBX: ffffb29840ab7740 RCX: 00000000ffffdfff [ 34.059446] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 34.059521] RBP: ffffb29840ab7248 R08: ffffffffbdd56a28 R09: 00000000ffffdfff [ 34.059596] R10: ffffffffbdc76a40 R11: ffffffffbdd26a40 R12: dead000000000122 [ 34.059691] R13: 00000000fffbf0a0 R14: 0000000000000001 R15: ffff8d46451a0000 [ 34.059768] FS: 00007f0c4ff5e800(0000) GS:ffff8d46c0959000(0000) knlGS:0000000000000000 [ 34.059859] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.059929] CR2: 00000000004e5a00 CR3: 00000000090d7002 CR4: 0000000000772ef0 [ 34.060004] PKRU: 55555554 [ 34.060028] Call Trace: [ 34.060071] [ 34.060113] netdev_run_todo+0x21a/0x550 [ 34.060166] rtnl_dellink+0x15b/0x350 [ 34.060245] ? virtio_fs_enqueue_req+0x352/0x570 [ 34.060317] ? netdev_run_todo+0x63/0x550 [ 34.060357] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 34.060411] rtnetlink_rcv_msg+0x358/0x400 [ 34.060446] ? get_page_from_freelist+0x15b4/0x1770 [ 34.060500] ? rtnl_calcit.isra.0+0x110/0x110 [ 34.060549] netlink_rcv_skb+0x57/0x100 [ 34.060612] netlink_unicast+0x252/0x380 [ 34.060649] ? __alloc_skb+0xdb/0x190 [ 34.060689] netlink_sendmsg+0x1be/0x3e0 [ 34.060725] ____sys_sendmsg+0x132/0x260 [ 34.060772] ? copy_msghdr_from_user+0x6c/0xa0 [ 34.060822] ___sys_sendmsg+0x87/0xd0 [ 34.060857] ? do_wp_page+0x369/0xe90 [ 34.060896] ? ___pte_offset_map+0x1b/0xd0 [ 34.060933] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 34.060978] ? fsnotify_grab_connector+0x48/0x80 [ 34.061027] ? fsnotify_destroy_marks+0x29/0x150 [ 34.061073] __sys_sendmsg+0x71/0xd0 [ 34.061118] do_syscall_64+0xa4/0xfd0 [ 34.061166] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 34.061216] RIP: 0033:0x7f0c5012c1d7 [ 34.061259] 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 [ 34.061409] RSP: 002b:00007ffd3e6bc488 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.061470] RAX: ffffffffffffffda RBX: 00007ffd3e6bcbb0 RCX: 00007f0c5012c1d7 [ 34.061554] RDX: 0000000000000000 RSI: 00007ffd3e6bc4f0 RDI: 0000000000000005 [ 34.061616] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 34.061679] R10: 00007f0c50028f60 R11: 0000000000000246 R12: 0000000000000002 [ 34.061753] R13: 00000000690decd9 R14: 0000000000499600 R15: 0000000000000000 [ 34.061816] [ 34.061840] ---[ end trace 0000000000000000 ]--- [ 34.062571] ip (544) used greatest stack depth: 11744 bytes left [ 34.154736] br1: port 1(veth1) entered disabled state [ 34.167208] br1: port 2(veth2) entered disabled state [ 34.180368] veth2: left allmulticast mode [ 34.180444] veth2: left promiscuous mode [ 34.180505] br1: port 2(veth2) entered disabled state [ 34.180654] veth1: left allmulticast mode [ 34.180695] veth1: left promiscuous mode [ 34.180737] br1: port 1(veth1) entered disabled state