[ 2.296387] ip (250) used greatest stack depth: 12424 bytes left [ 7.740500] GACT probability NOT on [ 7.741796] tc (296) used greatest stack depth: 11840 bytes left [ 17.120321] 8021q: 802.1Q VLAN Support v1.8 [ 17.371896] ------------[ cut here ]------------ [ 17.372048] refcount_t: underflow; use-after-free. [ 17.372122] WARNING: CPU: 2 PID: 2061 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 17.372216] Modules linked in: 8021q act_gact cls_flower sch_ingress vrf veth [ 17.372303] CPU: 2 UID: 0 PID: 2061 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 17.372386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.372469] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 17.372527] Code: ba 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 d1 ba 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 [ 17.372665] RSP: 0018:ffffa880c031b730 EFLAGS: 00010282 [ 17.372729] RAX: 0000000000000000 RBX: ffffa880c031b740 RCX: 00000000ffffdfff [ 17.372809] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 17.372889] RBP: ffffa880c031b248 R08: ffffffffbb156a28 R09: 00000000ffffdfff [ 17.372961] R10: ffffffffbb076a40 R11: ffffffffbb126a40 R12: dead000000000122 [ 17.373038] R13: 00000000fffbaf66 R14: 0000000000000001 R15: ffff9a17830c4000 [ 17.373111] FS: 00007f3be8778800(0000) GS:ffff9a18034d9000(0000) knlGS:0000000000000000 [ 17.373192] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.373260] CR2: 000055fa92b5c860 CR3: 0000000008439001 CR4: 0000000000772ef0 [ 17.373337] PKRU: 55555554 [ 17.373395] Call Trace: [ 17.373448] [ 17.373495] netdev_run_todo+0x21a/0x550 [ 17.373556] rtnl_dellink+0x15b/0x350 [ 17.373609] ? virtio_fs_enqueue_req+0x352/0x570 [ 17.373678] ? netdev_run_todo+0x63/0x550 [ 17.373735] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 17.373797] rtnetlink_rcv_msg+0x358/0x400 [ 17.373855] ? get_page_from_freelist+0x15b4/0x1770 [ 17.373921] ? rtnl_calcit.isra.0+0x110/0x110 [ 17.373977] netlink_rcv_skb+0x57/0x100 [ 17.374040] netlink_unicast+0x252/0x380 [ 17.374089] ? __alloc_skb+0xdb/0x190 [ 17.374142] netlink_sendmsg+0x1be/0x3e0 [ 17.374198] ____sys_sendmsg+0x132/0x260 [ 17.374255] ? copy_msghdr_from_user+0x6c/0xa0 [ 17.374318] ___sys_sendmsg+0x87/0xd0 [ 17.374370] ? do_wp_page+0x369/0xe90 [ 17.374438] ? ___pte_offset_map+0x1b/0xd0 [ 17.374496] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 17.374557] ? fsnotify_grab_connector+0x48/0x80 [ 17.374619] ? fsnotify_destroy_marks+0x29/0x150 [ 17.374684] __sys_sendmsg+0x71/0xd0 [ 17.374739] do_syscall_64+0xa4/0xfd0 [ 17.374803] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.374871] RIP: 0033:0x7f3be89461d7 [ 17.374923] 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 [ 17.375069] RSP: 002b:00007ffd7759ce78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 17.375140] RAX: ffffffffffffffda RBX: 00007ffd7759d5a0 RCX: 00007f3be89461d7 [ 17.375218] RDX: 0000000000000000 RSI: 00007ffd7759cee0 RDI: 0000000000000005 [ 17.375297] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 17.375369] R10: 00007f3be8842f60 R11: 0000000000000246 R12: 0000000000000002 [ 17.375466] R13: 00000000690decd6 R14: 0000000000499600 R15: 0000000000000000 [ 17.375540] [ 17.375584] ---[ end trace 0000000000000000 ]--- [ 17.376208] ip (2061) used greatest stack depth: 11744 bytes left [ 33.568686] gre: GRE over IPv4 demultiplexer driver [ 33.570491] ip_gre: GRE over IPv4 tunneling driver