[ 2.178946] ip (250) used greatest stack depth: 12408 bytes left [ 2.227961] ip (257) used greatest stack depth: 12360 bytes left [ 2.275240] ip (263) used greatest stack depth: 12296 bytes left [ 8.035352] GACT probability NOT on [ 48.980766] Mirror/redirect action on [ 110.801997] ------------[ cut here ]------------ [ 110.802091] refcount_t: underflow; use-after-free. [ 110.802155] WARNING: CPU: 2 PID: 933 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 110.802226] Modules linked in: act_mirred act_gact act_police cls_flower sch_ingress vrf veth [ 110.802310] CPU: 2 UID: 0 PID: 933 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 110.802385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 110.802434] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 110.802481] Code: 86 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 86 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 [ 110.802628] RSP: 0018:ffffa77180b1f730 EFLAGS: 00010282 [ 110.802674] RAX: 0000000000000000 RBX: ffffa77180b1f740 RCX: 00000000ffffdfff [ 110.802740] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 110.802800] RBP: ffffa77180b1f248 R08: ffffffff86f56a28 R09: 00000000ffffdfff [ 110.802866] R10: ffffffff86e76a40 R11: ffffffff86f26a40 R12: dead000000000122 [ 110.802925] R13: 00000000fffd1c6e R14: 0000000000000001 R15: ffff936081fea000 [ 110.802993] FS: 00007f775612b800(0000) GS:ffff9361376d9000(0000) knlGS:0000000000000000 [ 110.803061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.803116] CR2: 00000000004e73d8 CR3: 00000000074fd001 CR4: 0000000000772ef0 [ 110.803177] PKRU: 55555554 [ 110.803202] Call Trace: [ 110.803224] [ 110.803248] netdev_run_todo+0x21a/0x550 [ 110.803291] rtnl_dellink+0x15b/0x350 [ 110.803335] ? virtio_fs_enqueue_req+0x352/0x570 [ 110.803385] ? netdev_run_todo+0x63/0x550 [ 110.803421] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 110.803468] rtnetlink_rcv_msg+0x358/0x400 [ 110.803505] ? get_page_from_freelist+0x15b4/0x1770 [ 110.803552] ? rtnl_calcit.isra.0+0x110/0x110 [ 110.803598] netlink_rcv_skb+0x57/0x100 [ 110.803642] netlink_unicast+0x252/0x380 [ 110.803680] ? __alloc_skb+0xdb/0x190 [ 110.803717] netlink_sendmsg+0x1be/0x3e0 [ 110.803754] ____sys_sendmsg+0x132/0x260 [ 110.803794] ? copy_msghdr_from_user+0x6c/0xa0 [ 110.803843] ___sys_sendmsg+0x87/0xd0 [ 110.803881] ? do_wp_page+0x369/0xe90 [ 110.803920] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 110.803973] ? fsnotify_grab_connector+0x48/0x80 [ 110.804062] ? fsnotify_destroy_marks+0x29/0x150 [ 110.804109] __sys_sendmsg+0x71/0xd0 [ 110.804147] do_syscall_64+0xa4/0xfd0 [ 110.804183] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 110.804230] RIP: 0033:0x7f77562f91d7 [ 110.804266] 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 [ 110.804409] RSP: 002b:00007ffd78c42f58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 110.804500] RAX: ffffffffffffffda RBX: 00007ffd78c43680 RCX: 00007f77562f91d7 [ 110.804570] RDX: 0000000000000000 RSI: 00007ffd78c42fc0 RDI: 0000000000000005 [ 110.804636] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 110.804695] R10: 00007f77561f5f60 R11: 0000000000000246 R12: 0000000000000002 [ 110.804761] R13: 00000000690debcb R14: 0000000000499600 R15: 0000000000000000 [ 110.804850] [ 110.804877] ---[ end trace 0000000000000000 ]--- [ 110.805357] ip (933) used greatest stack depth: 11744 bytes left