kernel: erspan: make sure erspan_base_hdr is present in skb->head

In the Linux kernel, the following vulnerability has been resolved: erspan: make sure erspanbasehdr is present in skb-head The Linux kernel CVE team has assigned CVE-2024-35888 to this issue. Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024051947-CVE-2024-35888-1e04@gregkh/T...