[ 2.724246] 8021q: 802.1Q VLAN Support v1.8 [ 2.850048] gre: GRE over IPv4 demultiplexer driver [ 2.852181] ip_gre: GRE over IPv4 tunneling driver [ 3.529520] GACT probability NOT on [ 3.530824] tc (375) used greatest stack depth: 11840 bytes left [ 13.295590] ------------[ cut here ]------------ [ 13.295739] refcount_t: underflow; use-after-free. [ 13.295809] WARNING: CPU: 3 PID: 652 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 13.295904] Modules linked in: act_gact cls_flower sch_ingress ip_gre gre 8021q vrf veth [ 13.295998] CPU: 3 UID: 0 PID: 652 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 13.296096] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.296154] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 13.296205] Code: 92 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 92 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 [ 13.296391] RSP: 0018:ffffb85680bab730 EFLAGS: 00010282 [ 13.296454] RAX: 0000000000000000 RBX: ffffb85680bab740 RCX: 00000000ffffdfff [ 13.296532] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 13.296619] RBP: ffffb85680bab248 R08: ffffffff93156a28 R09: 00000000ffffdfff [ 13.296709] R10: ffffffff93076a40 R11: ffffffff93126a40 R12: dead000000000122 [ 13.296786] R13: 00000000fffb9f91 R14: 0000000000000001 R15: ffff8e0a86c35000 [ 13.296865] FS: 00007efd225b1800(0000) GS:ffff8e0b2b559000(0000) knlGS:0000000000000000 [ 13.296948] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 13.297014] CR2: 00000000004e7438 CR3: 00000000035d8001 CR4: 0000000000772ef0 [ 13.297092] PKRU: 55555554 [ 13.297124] Call Trace: [ 13.297152] [ 13.297178] netdev_run_todo+0x21a/0x550 [ 13.297234] rtnl_dellink+0x15b/0x350 [ 13.297285] ? virtio_fs_enqueue_req+0x352/0x570 [ 13.297348] ? netdev_run_todo+0x63/0x550 [ 13.297393] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 13.297451] rtnetlink_rcv_msg+0x358/0x400 [ 13.297498] ? get_page_from_freelist+0x15b4/0x1770 [ 13.297565] ? rtnl_calcit.isra.0+0x110/0x110 [ 13.297622] netlink_rcv_skb+0x57/0x100 [ 13.297670] netlink_unicast+0x252/0x380 [ 13.297713] ? __alloc_skb+0xdb/0x190 [ 13.297761] netlink_sendmsg+0x1be/0x3e0 [ 13.297807] ____sys_sendmsg+0x132/0x260 [ 13.297852] ? copy_msghdr_from_user+0x6c/0xa0 [ 13.297911] ___sys_sendmsg+0x87/0xd0 [ 13.297956] ? do_wp_page+0x369/0xe90 [ 13.298008] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 13.298067] ? fsnotify_grab_connector+0x48/0x80 [ 13.298136] ? fsnotify_destroy_marks+0x29/0x150 [ 13.298195] __sys_sendmsg+0x71/0xd0 [ 13.298242] do_syscall_64+0xa4/0xfd0 [ 13.298293] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.298352] RIP: 0033:0x7efd2277f1d7 [ 13.298395] 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 [ 13.298585] RSP: 002b:00007ffea9c8ad18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 13.298668] RAX: ffffffffffffffda RBX: 00007ffea9c8b440 RCX: 00007efd2277f1d7 [ 13.298744] RDX: 0000000000000000 RSI: 00007ffea9c8ad80 RDI: 0000000000000005 [ 13.298827] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 13.298907] R10: 00007efd2267bf60 R11: 0000000000000246 R12: 0000000000000002 [ 13.298983] R13: 00000000690de7f9 R14: 0000000000499600 R15: 0000000000000000 [ 13.299061] [ 13.299085] ---[ end trace 0000000000000000 ]--- [ 13.299836] ip (652) used greatest stack depth: 11744 bytes left