{"id":"CVE-2026-97518","state":"PUBLISHED","title":"wifi: cfg80211: reject duplicate wiphy cipher suite entries","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: reject duplicate wiphy cipher suite entries\n\nDuplicate entries in wiphy->cipher_suites do not describe any\nadditional capability, but cfg80211 currently accepts them and leaves\nindividual consumers to deal with them.\n\nOne such consumer is the WEXT compatibility code, which appends a WEP\nkey length for each WEP cipher entry it sees. Repeated WEP entries can\ntherefore overflow the fixed iw_range::encoding_size array returned by\nSIOCGIWRANGE.\n\nReject duplicate cipher suite entries in wiphy_register() instead.\nThis keeps the cipher suite invariant in one place and makes malformed\nwiphy descriptions fail early with -EINVAL, rather than relying on a\nsingle cfg80211 user to handle duplicates correctly.","publishedAt":"2026-09-24T16:05:18.072Z","updatedAt":"2026-10-30T12:37:09.335Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"539d7f795bf0c41fb533c99e6010cdfaf5a1b6a6","versionType":"git"},{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"d12e92e72db914e1ea777c6f246f6be75985438e","versionType":"git"},{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"1305f8b925fe92edf5fec183588dfc7db719180b","versionType":"git"},{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"4cbb2360f4d8c29e67bc7a8bf6ba0ae096583923","versionType":"git"},{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"7187d145d9042b037e4f10538f70cf95e380219f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/core.c"]}],"references":["https://git.kernel.org/stable/c/539d7f795bf0c41fb533c99e6010cdfaf5a1b6a6","https://git.kernel.org/stable/c/d12e92e72db914e1ea777c6f246f6be75985438e","https://git.kernel.org/stable/c/1305f8b925fe92edf5fec183588dfc7db719180b","https://git.kernel.org/stable/c/4cbb2360f4d8c29e67bc7a8bf6ba0ae096583923","https://git.kernel.org/stable/c/7187d145d9042b037e4f10538f70cf95e380219f"],"weaknesses":[],"ingestedAt":"2026-10-30T12:56:04.490Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97518.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97518","state":"PUBLISHED","datePublished":"2026-09-24T16:05:18.072Z","dateUpdated":"2026-10-30T12:37:09.335Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-24T16:01:01.152Z"},"containers":{"cna":{"title":"wifi: cfg80211: reject duplicate wiphy cipher suite entries","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: reject duplicate wiphy cipher suite entries\n\nDuplicate entries in wiphy->cipher_suites do not describe any\nadditional capability, but cfg80211 currently accepts them and leaves\nindividual consumers to deal with them.\n\nOne such consumer is the WEXT compatibility code, which appends a WEP\nkey length for each WEP cipher entry it sees. Repeated WEP entries can\ntherefore overflow the fixed iw_range::encoding_size array returned by\nSIOCGIWRANGE.\n\nReject duplicate cipher suite entries in wiphy_register() instead.\nThis keeps the cipher suite invariant in one place and makes malformed\nwiphy descriptions fail early with -EINVAL, rather than relying on a\nsingle cfg80211 user to handle duplicates correctly."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"539d7f795bf0c41fb533c99e6010cdfaf5a1b6a6","versionType":"git"},{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"d12e92e72db914e1ea777c6f246f6be75985438e","versionType":"git"},{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"1305f8b925fe92edf5fec183588dfc7db719180b","versionType":"git"},{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"4cbb2360f4d8c29e67bc7a8bf6ba0ae096583923","versionType":"git"},{"version":"2ab658f9ce218ae93b3d2db2b3fe68bfefb81196","status":"affected","lessThan":"7187d145d9042b037e4f10538f70cf95e380219f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/539d7f795bf0c41fb533c99e6010cdfaf5a1b6a6"},{"url":"https://git.kernel.org/stable/c/d12e92e72db914e1ea777c6f246f6be75985438e"},{"url":"https://git.kernel.org/stable/c/1305f8b925fe92edf5fec183588dfc7db719180b"},{"url":"https://git.kernel.org/stable/c/4cbb2360f4d8c29e67bc7a8bf6ba0ae096583923"},{"url":"https://git.kernel.org/stable/c/7187d145d9042b037e4f10538f70cf95e380219f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:37:09.335Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}