{"id":"CVE-2026-31779","title":"wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()\n\nThe memcpy function assumes the dynamic array notif->matches is at least\nas lar…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < f6abac936a0dfd31d6c3e49205ec0ee75a8f887f","Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < ffbed27ba15ef80d1c622eeedbfef03e501ae134","Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < e67d8c626ace80b0fa2b48c8ec0a46b508c93442","Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < dd90880eb5ec5442b37eb2b95688f4a63f4883e3","Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2","Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < 744fabc338e87b95c4d1ff7c95bc8c0f834c6d99","Linux 6.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-16T15:13:14.151530Z"},"published":"2026-05-01","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:20:27.015Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31779","references":[{"url":"https://git.kernel.org/stable/c/f6abac936a0dfd31d6c3e49205ec0ee75a8f887f"},{"url":"https://git.kernel.org/stable/c/ffbed27ba15ef80d1c622eeedbfef03e501ae134"},{"url":"https://git.kernel.org/stable/c/e67d8c626ace80b0fa2b48c8ec0a46b508c93442"},{"url":"https://git.kernel.org/stable/c/dd90880eb5ec5442b37eb2b95688f4a63f4883e3"},{"url":"https://git.kernel.org/stable/c/ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2"},{"url":"https://git.kernel.org/stable/c/744fabc338e87b95c4d1ff7c95bc8c0f834c6d99"}],"tags":["cve.org"],"epss":0.00409,"epssPercentile":0.3364,"ingestedAt":"2026-10-16T17:24:46.675Z","slug":"CVE-2026-31779","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()\n\nThe memcpy function assumes the dynamic array notif->matches is at least\nas large as the number of bytes to copy. Otherwise, results->matches may\ncontain unwanted data. To guarantee safety, extend the validation in one\nof the checks to ensure sufficient packet length.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n## Affected\n\n- `Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < f6abac936a0dfd31d6c3e49205ec0ee75a8f887f`\n- `Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < ffbed27ba15ef80d1c622eeedbfef03e501ae134`\n- `Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < e67d8c626ace80b0fa2b48c8ec0a46b508c93442`\n- `Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < dd90880eb5ec5442b37eb2b95688f4a63f4883e3`\n- `Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2`\n- `Linux >= 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c < 744fabc338e87b95c4d1ff7c95bc8c0f834c6d99`\n- `Linux 6.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}