[ 3.003800] 8021q: 802.1Q VLAN Support v1.8 [ 3.051024] gre: GRE over IPv4 demultiplexer driver [ 3.056005] ip6_gre: GRE over IPv6 tunneling driver [ 8.669457] GACT probability NOT on [ 8.670860] tc (405) used greatest stack depth: 11840 bytes left [ 11.611169] ------------[ cut here ]------------ [ 11.611257] refcount_t: underflow; use-after-free. [ 11.611319] WARNING: CPU: 0 PID: 625 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 11.611409] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth [ 11.611532] CPU: 0 UID: 0 PID: 625 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 11.611630] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.611690] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 11.611741] Code: b1 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 b1 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 [ 11.611912] RSP: 0018:ffff9b28c0cc7730 EFLAGS: 00010282 [ 11.611964] RAX: 0000000000000000 RBX: ffff9b28c0cc7740 RCX: 00000000ffffdfff [ 11.612037] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 11.612119] RBP: ffff9b28c0cc7248 R08: ffffffffb1b56a28 R09: 00000000ffffdfff [ 11.612197] R10: ffffffffb1a76a40 R11: ffffffffb1b26a40 R12: dead000000000122 [ 11.612271] R13: 00000000fffb98fb R14: 0000000000000001 R15: ffff8e6d86cd9000 [ 11.612348] FS: 00007f59817f4800(0000) GS:ffff8e6e0c9d9000(0000) knlGS:0000000000000000 [ 11.612427] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.612486] CR2: 00007f39f6d485f0 CR3: 0000000008044004 CR4: 0000000000772ef0 [ 11.612563] PKRU: 55555554 [ 11.612589] Call Trace: [ 11.612616] [ 11.612644] netdev_run_todo+0x21a/0x550 [ 11.612688] rtnl_dellink+0x15b/0x350 [ 11.612732] ? virtio_fs_enqueue_req+0x352/0x570 [ 11.612809] ? netdev_run_todo+0x63/0x550 [ 11.612848] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 11.612898] rtnetlink_rcv_msg+0x358/0x400 [ 11.612934] ? get_page_from_freelist+0x15b4/0x1770 [ 11.612993] ? rtnl_calcit.isra.0+0x110/0x110 [ 11.613039] netlink_rcv_skb+0x57/0x100 [ 11.613085] netlink_unicast+0x252/0x380 [ 11.613127] ? __alloc_skb+0xdb/0x190 [ 11.613176] netlink_sendmsg+0x1be/0x3e0 [ 11.613213] ____sys_sendmsg+0x132/0x260 [ 11.613258] ? copy_msghdr_from_user+0x6c/0xa0 [ 11.613311] ___sys_sendmsg+0x87/0xd0 [ 11.613350] ? do_wp_page+0x369/0xe90 [ 11.613396] ? ___pte_offset_map+0x1b/0xd0 [ 11.613441] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 11.613495] ? fsnotify_grab_connector+0x48/0x80 [ 11.613550] ? fsnotify_destroy_marks+0x29/0x150 [ 11.613604] __sys_sendmsg+0x71/0xd0 [ 11.613643] do_syscall_64+0xa4/0xfd0 [ 11.613684] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.613742] RIP: 0033:0x7f59819c21d7 [ 11.613780] 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 [ 11.613964] RSP: 002b:00007fff9d6f2368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.614036] RAX: ffffffffffffffda RBX: 00007fff9d6f2a90 RCX: 00007f59819c21d7 [ 11.614111] RDX: 0000000000000000 RSI: 00007fff9d6f23d0 RDI: 0000000000000005 [ 11.614191] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 11.614265] R10: 00007f59818bef60 R11: 0000000000000246 R12: 0000000000000002 [ 11.614338] R13: 00000000690dee89 R14: 0000000000499600 R15: 0000000000000000 [ 11.614417] [ 11.614450] ---[ end trace 0000000000000000 ]--- [ 11.615078] ip (625) used greatest stack depth: 11744 bytes left