{"id":"CVE-2023-53113","title":"wifi: nl80211: fix NULL-ptr deref in offchan check","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: fix NULL-ptr deref in offchan check\n\nIf, e.g. in AP mode, the link was already created by userspace\nbut not activated yet, it has a chandef but the chand…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 87e80ea4fbc9ce2f2005905fdbcd38baaa47463a","Linux >= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 201a836c2385fdd2b9d0a8e7737bba5b26f1863a","Linux >= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < f624bb6fad23df3270580b4fcef415c6e7bf7705","Linux 7a53ad13c09150076b7ddde96c2dfc5622c90b45","Linux >= 5.19.2 < 5.20","Linux 6.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:17:43.617434Z"},"published":"2025-05-02","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:21:02.019Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53113","references":[{"url":"https://git.kernel.org/stable/c/87e80ea4fbc9ce2f2005905fdbcd38baaa47463a"},{"url":"https://git.kernel.org/stable/c/201a836c2385fdd2b9d0a8e7737bba5b26f1863a"},{"url":"https://git.kernel.org/stable/c/f624bb6fad23df3270580b4fcef415c6e7bf7705"}],"tags":["cve.org"],"epss":0.00201,"epssPercentile":0.10026,"ingestedAt":"2026-11-05T22:38:31.771Z","slug":"CVE-2023-53113","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: fix NULL-ptr deref in offchan check\n\nIf, e.g. in AP mode, the link was already created by userspace\nbut not activated yet, it has a chandef but the chandef isn't\nvalid and has no channel. Check for this and ignore this link.\n\n## Affected\n\n- `Linux >= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 87e80ea4fbc9ce2f2005905fdbcd38baaa47463a`\n- `Linux >= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 201a836c2385fdd2b9d0a8e7737bba5b26f1863a`\n- `Linux >= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < f624bb6fad23df3270580b4fcef415c6e7bf7705`\n- `Linux 7a53ad13c09150076b7ddde96c2dfc5622c90b45`\n- `Linux >= 5.19.2 < 5.20`\n- `Linux 6.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}