https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 02 Nov 2026 23:53:13 +0000 https://db.gcve.eu/vuln/cve-2026-98631 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>xsk: Use a 32-bit compare in xsk_map_gen_lookup</p> <p>xsk_map_gen_lookup() loads a u32 key and compares it with max_entries using BPF_JMP_IMM. BPF immediates are sign-extended to 64 bits, so a max_entries value of 0x80000000 or higher becomes a threshold larger than every zero-extended 32-bit key. An out-of-range index then skips the bounds check and the generated lookup reads past xsk_map[].</p> <p>Compare with BPF_JMP32_IMM so the check stays in 32-bit unsigned range.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>xsk: Use a 32-bit compare in xsk_map_gen_lookup</p> <p>xsk_map_gen_lookup() loads a u32 key and compares it with max_entries using BPF_JMP_IMM. BPF immediates are sign-extended to 64 bits, so a max_entries value of 0x80000000 or higher becomes a threshold larger than every zero-extended 32-bit key. An out-of-range index then skips the bounds check and the generated lookup reads past xsk_map[].</p> <p>Compare with BPF_JMP32_IMM so the check stays in 32-bit unsigned range.</p> https://db.gcve.eu/vuln/cve-2026-98631