[ 2.786723] 8021q: 802.1Q VLAN Support v1.8 [ 2.842511] gre: GRE over IPv4 demultiplexer driver [ 2.844473] ip_gre: GRE over IPv4 tunneling driver [ 15.534824] ------------[ cut here ]------------ [ 15.535000] refcount_t: underflow; use-after-free. [ 15.535100] WARNING: CPU: 2 PID: 407 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 15.535204] Modules linked in: ip_gre gre 8021q vrf veth [ 15.535283] CPU: 2 UID: 0 PID: 407 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 15.535397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.535484] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 15.535562] Code: 8b 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 b1 8b 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 [ 15.535763] RSP: 0018:ffffb90d0092f730 EFLAGS: 00010282 [ 15.535841] RAX: 0000000000000000 RBX: ffffb90d0092f740 RCX: 00000000ffffdfff [ 15.535939] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 15.536033] RBP: ffffb90d0092f248 R08: ffffffff8bf56a28 R09: 00000000ffffdfff [ 15.536128] R10: ffffffff8be76a40 R11: ffffffff8bf26a40 R12: dead000000000122 [ 15.536222] R13: 00000000fffba84c R14: 0000000000000001 R15: ffff9e9985af9000 [ 15.536321] FS: 00007f7808879800(0000) GS:ffff9e9a326d9000(0000) knlGS:0000000000000000 [ 15.536421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 15.536504] CR2: 00000000004e7410 CR3: 0000000003f33003 CR4: 0000000000772ef0 [ 15.536599] PKRU: 55555554 [ 15.536646] Call Trace: [ 15.536696] [ 15.536743] netdev_run_todo+0x21a/0x550 [ 15.536808] rtnl_dellink+0x15b/0x350 [ 15.536880] ? virtio_fs_enqueue_req+0x352/0x570 [ 15.536956] ? netdev_run_todo+0x63/0x550 [ 15.537016] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 15.537087] rtnetlink_rcv_msg+0x358/0x400 [ 15.537151] ? get_page_from_freelist+0x15b4/0x1770 [ 15.537211] ? rtnl_calcit.isra.0+0x110/0x110 [ 15.537305] netlink_rcv_skb+0x57/0x100 [ 15.537354] netlink_unicast+0x252/0x380 [ 15.537393] ? __alloc_skb+0xdb/0x190 [ 15.537476] netlink_sendmsg+0x1be/0x3e0 [ 15.537537] ____sys_sendmsg+0x132/0x260 [ 15.537600] ? copy_msghdr_from_user+0x6c/0xa0 [ 15.537674] ___sys_sendmsg+0x87/0xd0 [ 15.537736] ? do_wp_page+0x369/0xe90 [ 15.537811] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 15.537888] ? fsnotify_grab_connector+0x48/0x80 [ 15.537964] ? fsnotify_destroy_marks+0x29/0x150 [ 15.538035] __sys_sendmsg+0x71/0xd0 [ 15.538097] do_syscall_64+0xa4/0xfd0 [ 15.538163] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.538236] RIP: 0033:0x7f7808a471d7 [ 15.538299] 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 [ 15.538482] RSP: 002b:00007ffcddfddcb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.538578] RAX: ffffffffffffffda RBX: 00007ffcddfde3e0 RCX: 00007f7808a471d7 [ 15.538674] RDX: 0000000000000000 RSI: 00007ffcddfddd20 RDI: 0000000000000005 [ 15.538774] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 15.538872] R10: 00007f7808943f60 R11: 0000000000000246 R12: 0000000000000002 [ 15.538963] R13: 00000000690de7db R14: 0000000000499600 R15: 0000000000000000 [ 15.539057] [ 15.539104] ---[ end trace 0000000000000000 ]--- [ 15.539690] ip (407) used greatest stack depth: 11744 bytes left