[ 2.181199] ip (248) used greatest stack depth: 12488 bytes left [ 2.230217] ip (256) used greatest stack depth: 12344 bytes left [ 2.331732] veth0: entered allmulticast mode [ 2.331825] veth1: entered allmulticast mode [ 2.331890] veth2: entered allmulticast mode [ 2.331949] veth3: entered allmulticast mode [ 10.025956] GACT probability NOT on [ 10.027431] tc (356) used greatest stack depth: 11840 bytes left [ 10.792132] tc (473) used greatest stack depth: 11640 bytes left [ 11.100970] ------------[ cut here ]------------ [ 11.101128] refcount_t: underflow; use-after-free. [ 11.101236] WARNING: CPU: 3 PID: 507 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 11.101350] Modules linked in: act_gact cls_flower sch_ingress vrf veth [ 11.101445] CPU: 3 UID: 0 PID: 507 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 11.101579] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.101647] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 11.101716] Code: 9d 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 9d 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 [ 11.101916] RSP: 0018:ffffb6b5c09af730 EFLAGS: 00010282 [ 11.101990] RAX: 0000000000000000 RBX: ffffb6b5c09af740 RCX: 00000000ffffdfff [ 11.102077] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 11.102156] RBP: ffffb6b5c09af248 R08: ffffffff9e156a28 R09: 00000000ffffdfff [ 11.102235] R10: ffffffff9e076a40 R11: ffffffff9e126a40 R12: dead000000000122 [ 11.102314] R13: 00000000fffb96fc R14: 0000000000000001 R15: ffff8f6a02e1d000 [ 11.102395] FS: 00007fc2aff11800(0000) GS:ffff8f6aa1559000(0000) knlGS:0000000000000000 [ 11.102487] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.102561] CR2: 00007fc5c51705f0 CR3: 000000000715e002 CR4: 0000000000772ef0 [ 11.102644] PKRU: 55555554 [ 11.102676] Call Trace: [ 11.102712] [ 11.102744] netdev_run_todo+0x21a/0x550 [ 11.102818] rtnl_dellink+0x15b/0x350 [ 11.102874] ? virtio_fs_enqueue_req+0x352/0x570 [ 11.102952] ? netdev_run_todo+0x63/0x550 [ 11.102999] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 11.103058] rtnetlink_rcv_msg+0x358/0x400 [ 11.103103] ? get_page_from_freelist+0x15b4/0x1770 [ 11.103173] ? rtnl_calcit.isra.0+0x110/0x110 [ 11.103233] netlink_rcv_skb+0x57/0x100 [ 11.103295] netlink_unicast+0x252/0x380 [ 11.103340] ? __alloc_skb+0xdb/0x190 [ 11.103393] netlink_sendmsg+0x1be/0x3e0 [ 11.103432] ____sys_sendmsg+0x132/0x260 [ 11.103491] ? copy_msghdr_from_user+0x6c/0xa0 [ 11.103549] ___sys_sendmsg+0x87/0xd0 [ 11.103600] ? do_wp_page+0x369/0xe90 [ 11.103653] ? ___pte_offset_map+0x1b/0xd0 [ 11.103699] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 11.103765] ? fsnotify_grab_connector+0x48/0x80 [ 11.103834] ? fsnotify_destroy_marks+0x29/0x150 [ 11.103894] __sys_sendmsg+0x71/0xd0 [ 11.103948] do_syscall_64+0xa4/0xfd0 [ 11.104005] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.104077] RIP: 0033:0x7fc2b00df1d7 [ 11.104127] 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 [ 11.104319] RSP: 002b:00007ffe21950f78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.104400] RAX: ffffffffffffffda RBX: 00007ffe219516a0 RCX: 00007fc2b00df1d7 [ 11.104477] RDX: 0000000000000000 RSI: 00007ffe21950fe0 RDI: 0000000000000005 [ 11.104552] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 11.104630] R10: 00007fc2affdbf60 R11: 0000000000000246 R12: 0000000000000002 [ 11.104708] R13: 00000000690de8ba R14: 0000000000499600 R15: 0000000000000000 [ 11.104789] [ 11.104821] ---[ end trace 0000000000000000 ]--- [ 11.296234] veth0: left allmulticast mode [ 11.296300] veth1: left allmulticast mode [ 11.296337] veth2: left allmulticast mode [ 11.296373] veth3: left allmulticast mode