{"id":"CVE-2023-52649","state":"PUBLISHED","title":"drm/vkms: Avoid reading beyond LUT array","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vkms: Avoid reading beyond LUT array\n\nWhen the floor LUT index (drm_fixp2int(lut_index) is the last\nindex of the array the ceil LUT index will point to an entry\nbeyond the array. Make sure we guard against it and use the\nvalue of the floor LUT index.\n\nv3:\n - Drop bits from commit description that didn't contribute\n   anything of value","publishedAt":"2024-05-01T12:53:08.534Z","updatedAt":"2026-05-11T19:31:02.980Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"db1f254f2cfaf0510ae34fa2311a8d749e95179a","status":"affected","lessThan":"9556c167673057d48ce4a0da675026fe046654c1","versionType":"git"},{"version":"db1f254f2cfaf0510ae34fa2311a8d749e95179a","status":"affected","lessThan":"046c1184ce60b0a37d48134f17ddbc1f32ce02bd","versionType":"git"},{"version":"db1f254f2cfaf0510ae34fa2311a8d749e95179a","status":"affected","lessThan":"92800aaeff51b8358d1e0a7eb74daf8aa2d7ce9d","versionType":"git"},{"version":"db1f254f2cfaf0510ae34fa2311a8d749e95179a","status":"affected","lessThan":"2fee84030d12d9fddfa874e4562d71761a129277","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vkms/vkms_composer.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.23","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.11","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8.2","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vkms/vkms_composer.c"]}],"references":["https://git.kernel.org/stable/c/9556c167673057d48ce4a0da675026fe046654c1","https://git.kernel.org/stable/c/046c1184ce60b0a37d48134f17ddbc1f32ce02bd","https://git.kernel.org/stable/c/92800aaeff51b8358d1e0a7eb74daf8aa2d7ce9d","https://git.kernel.org/stable/c/2fee84030d12d9fddfa874e4562d71761a129277"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52649.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52649","state":"PUBLISHED","datePublished":"2024-05-01T12:53:08.534Z","dateUpdated":"2026-05-11T19:31:02.980Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-03-06T09:52:12.096Z"},"containers":{"cna":{"title":"drm/vkms: Avoid reading beyond LUT array","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vkms: Avoid reading beyond LUT array\n\nWhen the floor LUT index (drm_fixp2int(lut_index) is the last\nindex of the array the ceil LUT index will point to an entry\nbeyond the array. Make sure we guard against it and use the\nvalue of the floor LUT index.\n\nv3:\n - Drop bits from commit description that didn't contribute\n   anything of value"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"db1f254f2cfaf0510ae34fa2311a8d749e95179a","status":"affected","lessThan":"9556c167673057d48ce4a0da675026fe046654c1","versionType":"git"},{"version":"db1f254f2cfaf0510ae34fa2311a8d749e95179a","status":"affected","lessThan":"046c1184ce60b0a37d48134f17ddbc1f32ce02bd","versionType":"git"},{"version":"db1f254f2cfaf0510ae34fa2311a8d749e95179a","status":"affected","lessThan":"92800aaeff51b8358d1e0a7eb74daf8aa2d7ce9d","versionType":"git"},{"version":"db1f254f2cfaf0510ae34fa2311a8d749e95179a","status":"affected","lessThan":"2fee84030d12d9fddfa874e4562d71761a129277","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vkms/vkms_composer.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.23","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.11","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8.2","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vkms/vkms_composer.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/9556c167673057d48ce4a0da675026fe046654c1"},{"url":"https://git.kernel.org/stable/c/046c1184ce60b0a37d48134f17ddbc1f32ce02bd"},{"url":"https://git.kernel.org/stable/c/92800aaeff51b8358d1e0a7eb74daf8aa2d7ce9d"},{"url":"https://git.kernel.org/stable/c/2fee84030d12d9fddfa874e4562d71761a129277"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:31:02.980Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.7.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.8.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.9"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-14T18:55:01.102324Z","id":"CVE-2023-52649","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-14T18:55:20.144Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/9556c167673057d48ce4a0da675026fe046654c1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/046c1184ce60b0a37d48134f17ddbc1f32ce02bd","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/92800aaeff51b8358d1e0a7eb74daf8aa2d7ce9d","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/2fee84030d12d9fddfa874e4562d71761a129277","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T23:03:21.234Z"}}]}}}