net/sched: cls_u32: use skb_header_pointer_careful()

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-23204 · Microsoft / collected KEV context

cve-program · CVE-2026-23204

• https://git.kernel.org/stable/c/66e4b63d61c15de6ca5332d9ca6db59a404d7136
• https://git.kernel.org/stable/c/29681ed51e737be14d18ecd1c304c57002e4b72c
• https://git.kernel.org/stable/c/cfa745830e45ecb75c061aa34330ee0cac941cc7
• https://git.kernel.org/stable/c/13336a6239b9d7c6e61483017bb8bdfe3ceb10a5
• https://git.kernel.org/stable/c/e41a23e61259f5526af875c3b86b3d42a9bae0e5
• https://git.kernel.org/stable/c/8a672f177ebe19c93d795fbe967846084fbc7943
• https://git.kernel.org/stable/c/cabd1a976375780dabab888784e356f574bbaed8

No related operational record is retained in the current change model.