{"id":"CVE-2026-74532","state":"PUBLISHED","title":"Bluetooth: btintel: Validate length before parsing diagnostics TLV","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: Validate length before parsing diagnostics TLV\n\nbtintel_diagnostics() accesses tlv->val[0] without first validating\nthat the diagnostics VSE is long enough to contain that field, so\nmay cause reading data beyond the received frame.\n\nFix by validating the length before access.","publishedAt":"2026-08-15T12:27:46.597Z","updatedAt":"2026-08-17T05:21:15.978Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"c31be902ccbbb0b2c23159a1481dce80d1f9753d","versionType":"git"},{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"dd20e30bdbd707ea8ced581f3d7f9e9854634b17","versionType":"git"},{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"c618a9a5b08ea2e17bddf4e948be9f75d408fca4","versionType":"git"},{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"6ec9c3dc52302b891513f608f5fb478349b15ab3","versionType":"git"},{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"b640ff9af3c809ff5ea2077fbba17df1594ec1e4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/btintel.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.151","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.103","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.44","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.8","status":"unaffected","lessThanOrEqual":"7.1.*","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":["drivers/bluetooth/btintel.c"]}],"references":["https://git.kernel.org/stable/c/c31be902ccbbb0b2c23159a1481dce80d1f9753d","https://git.kernel.org/stable/c/dd20e30bdbd707ea8ced581f3d7f9e9854634b17","https://git.kernel.org/stable/c/c618a9a5b08ea2e17bddf4e948be9f75d408fca4","https://git.kernel.org/stable/c/6ec9c3dc52302b891513f608f5fb478349b15ab3","https://git.kernel.org/stable/c/b640ff9af3c809ff5ea2077fbba17df1594ec1e4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74532.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74532","state":"PUBLISHED","datePublished":"2026-08-15T12:27:46.597Z","dateUpdated":"2026-08-17T05:21:15.978Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.912Z"},"containers":{"cna":{"title":"Bluetooth: btintel: Validate length before parsing diagnostics TLV","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: Validate length before parsing diagnostics TLV\n\nbtintel_diagnostics() accesses tlv->val[0] without first validating\nthat the diagnostics VSE is long enough to contain that field, so\nmay cause reading data beyond the received frame.\n\nFix by validating the length before access."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"c31be902ccbbb0b2c23159a1481dce80d1f9753d","versionType":"git"},{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"dd20e30bdbd707ea8ced581f3d7f9e9854634b17","versionType":"git"},{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"c618a9a5b08ea2e17bddf4e948be9f75d408fca4","versionType":"git"},{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"6ec9c3dc52302b891513f608f5fb478349b15ab3","versionType":"git"},{"version":"af395330abed142a2685bf3d17a938544816bf3c","status":"affected","lessThan":"b640ff9af3c809ff5ea2077fbba17df1594ec1e4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/btintel.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.151","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.103","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.44","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.8","status":"unaffected","lessThanOrEqual":"7.1.*","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":["drivers/bluetooth/btintel.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c31be902ccbbb0b2c23159a1481dce80d1f9753d"},{"url":"https://git.kernel.org/stable/c/dd20e30bdbd707ea8ced581f3d7f9e9854634b17"},{"url":"https://git.kernel.org/stable/c/c618a9a5b08ea2e17bddf4e948be9f75d408fca4"},{"url":"https://git.kernel.org/stable/c/6ec9c3dc52302b891513f608f5fb478349b15ab3"},{"url":"https://git.kernel.org/stable/c/b640ff9af3c809ff5ea2077fbba17df1594ec1e4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:21:15.978Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.151"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.103"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.44"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.1.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}