{"id":"CVE-2026-68270","state":"PUBLISHED","title":"drm/sysfb: Avoid possible truncation with calculating visible size","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sysfb: Avoid possible truncation with calculating visible size\n\nCalculating the visible size of the system framebuffer can result in\ntruncation of the result. The calculation uses 32-bit arithmetics,\nwhich can overflow if the values for height and stride are large. Fix\nthe issue by multiplying with mul_u32_u32().","publishedAt":"2026-08-10T12:01:45.569Z","updatedAt":"2026-08-17T05:02:03.584Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"32ae90c66fb62e4f6ae859422f733dfb249f10cf","status":"affected","lessThan":"154795885e8f0033c918c815aece543168bee670","versionType":"git"},{"version":"32ae90c66fb62e4f6ae859422f733dfb249f10cf","status":"affected","lessThan":"9d58a811739a365cd693192f4b5344d736967a88","versionType":"git"},{"version":"32ae90c66fb62e4f6ae859422f733dfb249f10cf","status":"affected","lessThan":"b771974988ec7ce077a7246fa0fa588c246fe581","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","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/gpu/drm/sysfb/drm_sysfb_screen_info.c"]}],"references":["https://git.kernel.org/stable/c/154795885e8f0033c918c815aece543168bee670","https://git.kernel.org/stable/c/9d58a811739a365cd693192f4b5344d736967a88","https://git.kernel.org/stable/c/b771974988ec7ce077a7246fa0fa588c246fe581"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68270.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68270","state":"PUBLISHED","datePublished":"2026-08-10T12:01:45.569Z","dateUpdated":"2026-08-17T05:02:03.584Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.378Z"},"containers":{"cna":{"title":"drm/sysfb: Avoid possible truncation with calculating visible size","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sysfb: Avoid possible truncation with calculating visible size\n\nCalculating the visible size of the system framebuffer can result in\ntruncation of the result. The calculation uses 32-bit arithmetics,\nwhich can overflow if the values for height and stride are large. Fix\nthe issue by multiplying with mul_u32_u32()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"32ae90c66fb62e4f6ae859422f733dfb249f10cf","status":"affected","lessThan":"154795885e8f0033c918c815aece543168bee670","versionType":"git"},{"version":"32ae90c66fb62e4f6ae859422f733dfb249f10cf","status":"affected","lessThan":"9d58a811739a365cd693192f4b5344d736967a88","versionType":"git"},{"version":"32ae90c66fb62e4f6ae859422f733dfb249f10cf","status":"affected","lessThan":"b771974988ec7ce077a7246fa0fa588c246fe581","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","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/gpu/drm/sysfb/drm_sysfb_screen_info.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/154795885e8f0033c918c815aece543168bee670"},{"url":"https://git.kernel.org/stable/c/9d58a811739a365cd693192f4b5344d736967a88"},{"url":"https://git.kernel.org/stable/c/b771974988ec7ce077a7246fa0fa588c246fe581"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:02:03.584Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}