CVE-2026-52999 | Linux Kernel up to 7.0.9 netfilter nf_osf_match optp out-of-bounds (WID-SEC-2026-2077)

A vulnerability was found in Linux Kernel up to 7.0.9. It has been classified as critical. Affected by this vulnerability is the function nf_osf_match of the component netfilter. This manipulation of the argument optp causes out-of-bounds read. This vulnerability appears as CVE-2026-52999. The attack requires local access. There is no available exploit. Upgrading the affected component is recommended.