CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of IPv6 extension headers, specifically during the processing of Hop-by-Hop Options (HAO). An attacker could exploit this flaw to manipulate network packet headers, potentially leading to denial of service or other malicious activities. Organizations using Linux systems, especially those relying on IPv6, should prioritize patching this critical vulnerability to safeguard their network infrastructure.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6_parse_tlv() caches skb_network_header(skb) in nh while walking IPv6 TLVs. ipv6_dest_hao() may call pskb_expand_head() for a cloned skb, which can move the skb head and invalidate the cached network header pointer. Refresh nh after ipv6_dest_hao() returns so any trailing padding or TLVs are parsed from the current skb head. This matches the existing pattern used in ip6_parse_tlv() after helpers that can modify skb header storage.