{"id":"CVE-2023-53113","state":"PUBLISHED","title":"wifi: nl80211: fix NULL-ptr deref in offchan check","description":"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 chandef isn't\nvalid and has no channel. Check for this and ignore this link.","publishedAt":"2025-05-02T15:55:52.393Z","updatedAt":"2026-05-23T15:28:03.314Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7b0a0e3c3a88260b6fcb017e49f198463aa62ed1","status":"affected","lessThan":"87e80ea4fbc9ce2f2005905fdbcd38baaa47463a","versionType":"git"},{"version":"7b0a0e3c3a88260b6fcb017e49f198463aa62ed1","status":"affected","lessThan":"201a836c2385fdd2b9d0a8e7737bba5b26f1863a","versionType":"git"},{"version":"7b0a0e3c3a88260b6fcb017e49f198463aa62ed1","status":"affected","lessThan":"f624bb6fad23df3270580b4fcef415c6e7bf7705","versionType":"git"},{"version":"7a53ad13c09150076b7ddde96c2dfc5622c90b45","status":"affected","versionType":"git"},{"version":"5.19.2","status":"affected","lessThan":"5.20","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/nl80211.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.21","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.8","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/nl80211.c"]}],"references":["https://git.kernel.org/stable/c/87e80ea4fbc9ce2f2005905fdbcd38baaa47463a","https://git.kernel.org/stable/c/201a836c2385fdd2b9d0a8e7737bba5b26f1863a","https://git.kernel.org/stable/c/f624bb6fad23df3270580b4fcef415c6e7bf7705"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53113.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53113","state":"PUBLISHED","datePublished":"2025-05-02T15:55:52.393Z","dateUpdated":"2026-05-23T15:28:03.314Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-02T15:51:43.554Z"},"containers":{"cna":{"title":"wifi: nl80211: fix NULL-ptr deref in offchan check","descriptions":[{"lang":"en","value":"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 chandef isn't\nvalid and has no channel. Check for this and ignore this link."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7b0a0e3c3a88260b6fcb017e49f198463aa62ed1","status":"affected","lessThan":"87e80ea4fbc9ce2f2005905fdbcd38baaa47463a","versionType":"git"},{"version":"7b0a0e3c3a88260b6fcb017e49f198463aa62ed1","status":"affected","lessThan":"201a836c2385fdd2b9d0a8e7737bba5b26f1863a","versionType":"git"},{"version":"7b0a0e3c3a88260b6fcb017e49f198463aa62ed1","status":"affected","lessThan":"f624bb6fad23df3270580b4fcef415c6e7bf7705","versionType":"git"},{"version":"7a53ad13c09150076b7ddde96c2dfc5622c90b45","status":"affected","versionType":"git"},{"version":"5.19.2","status":"affected","lessThan":"5.20","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/nl80211.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.21","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.8","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/nl80211.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:28:03.314Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}