CVE-2023-53500 xfrm: fix slab-use-after-free in decode_session6

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix slab-use-after-free in decodesession6 When the xfrm device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when the xfrm device sen...