{"id":"CVE-2026-53182","summary":"wifi: nl80211: reject oversized EMA RNR lists","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: reject oversized EMA RNR lists\n\nnl80211_parse_rnr_elems() stores the parsed element count in a\nu8-backed cfg80211_rnr_elems::cnt field and uses that count to size\nthe flexible array allocation.\n\nReject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches\n255, before incrementing it again. This keeps the parser aligned with\nthe data structure it fills and matches the existing bound check used\nby nl80211_parse_mbssid_elems().","modified":"2026-07-09T10:14:35.217716773Z","published":"2026-06-25T08:38:56.654Z","related":["CGA-wgxw-gh4v-8876","SUSE-SU-2026:2799-1","SUSE-SU-2026:2800-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53182.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05"},{"type":"WEB","url":"https://git.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53182.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53182"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"56189d7bc30531def6b999f27940ee43c6ff2569"},{"fixed":"fc0ec2fc02dfe52c5821f36fbccf6a45df43f508"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"dbbb27e183b1568d5a907ace1cd144b0709ea52a"},{"fixed":"688fcac7054abc680c0eef753f2bb772cfaf8cf7"},{"fixed":"30c3fa80f423613efdda3deca4af52ff7d20e4e2"},{"fixed":"265c07c09c837621730d35f02975207a1224bf05"},{"fixed":"ecbf3c45add30a0857414e156bdb9c79906f0ff6"},{"fixed":"4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.1.160"},{"fixed":"6.1.176"}]}],"versions":["v6.1.175","v6.1.174","v6.1.173","v6.1.172","v6.1.171","v6.1.170","v6.1.169","v6.1.168","v6.1.167","v6.1.166","v6.1.165","v6.1.164","v6.1.163","v6.1.162","v6.1.161","v6.1.160"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53182.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.176"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.143"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.4.0"},{"fixed":"6.12.94"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.18.36"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"7.0.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53182.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}