{"schema":"threatline.record/2","record":{"id":"CVE-2026-98183","aliases":[],"summary":"wifi: mac80211: avoid out-of-bounds read for empty PREQ elements","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: avoid out-of-bounds read for empty PREQ elements\n\nieee80211_mesh_preq_size_ok() derives the location of the PREQ bottom\nfields before checking whether the element contains even the fixed\nheader. ieee80211_mesh_hwmp_preq_get_bottom() reads the flags byte to\naccount for the optional Address Extension field. Consequently, an\nempty PREQ element causes a one-byte read beyond its declared payload.\n\nMove the helper call after both size checks, so the bottom fields are\nonly accessed when they are present.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98183","source_modified_at":"2026-10-19T09:15:14.410Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"8b40b1d24a6099fe9fac8e207d4cb04ab5e0baae","lessThan":"3beddbd56946577478fd5e649f556aaaebe15b0a","status":"affected","versionType":"git"},{"version":"8b40b1d24a6099fe9fac8e207d4cb04ab5e0baae","lessThan":"e6031f02269c0f51cf67886d177f02bc300b47cd","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98183","source_modified_at":"2026-10-19T09:15:14.410Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"7.2","status":"affected"},{"version":"0","lessThan":"7.2","status":"unaffected","versionType":"semver"},{"version":"7.2.8","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98183","source_modified_at":"2026-10-19T09:15:14.410Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3beddbd56946577478fd5e649f556aaaebe15b0a","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00162,"percentile":0.05097,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:44:26.024Z","modified_at":"2026-10-19T09:15:14.410Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98183","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:15:14.410Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98183","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/3beddbd56946577478fd5e649f556aaaebe15b0a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e6031f02269c0f51cf67886d177f02bc300b47cd"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:15:14.410Z","content_hash":"e92255c2b978cec2eb1341adf9a4ccce212299abc4f0068d0373f3ef63240d35"}}