[ 2.013361] ip (248) used greatest stack depth: 12344 bytes left [ 2.175652] br0: port 1(veth1) entered blocking state [ 2.175739] br0: port 1(veth1) entered disabled state [ 2.175793] veth1: entered allmulticast mode [ 2.175892] veth1: entered promiscuous mode [ 2.185719] br0: port 2(veth3) entered blocking state [ 2.185786] br0: port 2(veth3) entered disabled state [ 2.185845] veth3: entered allmulticast mode [ 2.185945] veth3: entered promiscuous mode [ 2.218458] br0: port 1(veth1) entered blocking state [ 2.218535] br0: port 1(veth1) entered forwarding state [ 2.241057] br0: port 2(veth3) entered blocking state [ 2.241121] br0: port 2(veth3) entered forwarding state [ 7.404632] br0: port 2(veth3) entered disabled state [ 7.425590] br0: port 1(veth1) entered disabled state [ 7.446078] veth3: left allmulticast mode [ 7.446137] veth3: left promiscuous mode [ 7.446182] br0: port 2(veth3) entered disabled state [ 7.446284] veth1: left allmulticast mode [ 7.446317] veth1: left promiscuous mode [ 7.446354] br0: port 1(veth1) entered disabled state [ 7.472564] ------------[ cut here ]------------ [ 7.472676] refcount_t: underflow; use-after-free. [ 7.472733] WARNING: CPU: 3 PID: 305 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 7.472811] Modules linked in: bridge stp llc veth [ 7.472861] CPU: 3 UID: 0 PID: 305 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 7.472939] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 7.472995] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 7.473039] Code: 98 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 51 98 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 [ 7.473201] RSP: 0018:ffffb2fbc039b730 EFLAGS: 00010282 [ 7.473244] RAX: 0000000000000000 RBX: ffffb2fbc039b740 RCX: 00000000ffffdfff [ 7.473311] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 7.473377] RBP: ffffb2fbc039b248 R08: ffffffff98956a28 R09: 00000000ffffdfff [ 7.473446] R10: ffffffff98876a40 R11: ffffffff98926a40 R12: dead000000000122 [ 7.473506] R13: 00000000fffb88d1 R14: 0000000000000001 R15: ffff92f303b9e000 [ 7.473572] FS: 00007f1ff5753800(0000) GS:ffff92f3a5d59000(0000) knlGS:0000000000000000 [ 7.473641] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.473691] CR2: 00000000004e68c8 CR3: 0000000005c6f004 CR4: 0000000000772ef0 [ 7.473753] PKRU: 55555554 [ 7.473778] Call Trace: [ 7.473797] [ 7.473825] netdev_run_todo+0x21a/0x550 [ 7.473863] rtnl_dellink+0x15b/0x350 [ 7.473905] ? virtio_fs_enqueue_req+0x352/0x570 [ 7.473959] ? netdev_run_todo+0x63/0x550 [ 7.474000] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 7.474043] rtnetlink_rcv_msg+0x358/0x400 [ 7.474072] ? get_page_from_freelist+0x15b4/0x1770 [ 7.474125] ? rtnl_calcit.isra.0+0x110/0x110 [ 7.474174] netlink_rcv_skb+0x57/0x100 [ 7.474206] netlink_unicast+0x252/0x380 [ 7.474243] ? __alloc_skb+0xdb/0x190 [ 7.474283] netlink_sendmsg+0x1be/0x3e0 [ 7.474310] ____sys_sendmsg+0x132/0x260 [ 7.474343] ? copy_msghdr_from_user+0x6c/0xa0 [ 7.474383] ___sys_sendmsg+0x87/0xd0 [ 7.474414] ? do_wp_page+0x369/0xe90 [ 7.474453] ? ___pte_offset_map+0x1b/0xd0 [ 7.474486] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 7.474532] ? fsnotify_grab_connector+0x48/0x80 [ 7.474585] ? fsnotify_destroy_marks+0x29/0x150 [ 7.474630] __sys_sendmsg+0x71/0xd0 [ 7.474662] do_syscall_64+0xa4/0xfd0 [ 7.474693] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 7.474733] RIP: 0033:0x7f1ff59211d7 [ 7.474773] 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 [ 7.474909] RSP: 002b:00007ffd33b324f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 7.474986] RAX: ffffffffffffffda RBX: 00007ffd33b32c20 RCX: 00007f1ff59211d7 [ 7.475052] RDX: 0000000000000000 RSI: 00007ffd33b32560 RDI: 0000000000000005 [ 7.475104] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 7.475150] R10: 00007f1ff581df60 R11: 0000000000000246 R12: 0000000000000002 [ 7.475209] R13: 00000000690de91b R14: 0000000000499600 R15: 0000000000000000 [ 7.475261] [ 7.475285] ---[ end trace 0000000000000000 ]--- [ 7.475787] ip (305) used greatest stack depth: 11744 bytes left