{"id":"CVE-2023-53077","state":"PUBLISHED","title":"drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes\n\n[WHY]\nWhen PTEBufferSizeInRequests is zero, UBSAN reports the following\nwarning because dml_log2 returns an unexpected negative value:\n\n  shift exponent 4294966273 is too large for 32-bit type 'int'\n\n[HOW]\n\nIn the case PTEBufferSizeInRequests is zero, skip the dml_log2() and\nassign the result directly.","publishedAt":"2025-05-02T15:55:27.613Z","updatedAt":"2026-05-11T19:38:05.066Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"7257070be70e19a9138f39009c1a26c83a8a7cfa","versionType":"git"},{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"bec1bea2fa974e63f6059c33edde669c7894d0bc","versionType":"git"},{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"a16394b5d661afec9a264fecac3abd87aea439ea","versionType":"git"},{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"e12b95680821b9880cd9992c0f3555389363604f","versionType":"git"},{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"031f196d1b1b6d5dfcb0533b431e3ab1750e6189","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.9","versionType":"semver"},{"version":"5.10.176","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.104","status":"unaffected","lessThanOrEqual":"5.15.*","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":["drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c"]}],"references":["https://git.kernel.org/stable/c/7257070be70e19a9138f39009c1a26c83a8a7cfa","https://git.kernel.org/stable/c/bec1bea2fa974e63f6059c33edde669c7894d0bc","https://git.kernel.org/stable/c/a16394b5d661afec9a264fecac3abd87aea439ea","https://git.kernel.org/stable/c/e12b95680821b9880cd9992c0f3555389363604f","https://git.kernel.org/stable/c/031f196d1b1b6d5dfcb0533b431e3ab1750e6189"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53077.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53077","state":"PUBLISHED","datePublished":"2025-05-02T15:55:27.613Z","dateUpdated":"2026-05-11T19:38:05.066Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-02T15:51:43.549Z"},"containers":{"cna":{"title":"drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes\n\n[WHY]\nWhen PTEBufferSizeInRequests is zero, UBSAN reports the following\nwarning because dml_log2 returns an unexpected negative value:\n\n  shift exponent 4294966273 is too large for 32-bit type 'int'\n\n[HOW]\n\nIn the case PTEBufferSizeInRequests is zero, skip the dml_log2() and\nassign the result directly."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"7257070be70e19a9138f39009c1a26c83a8a7cfa","versionType":"git"},{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"bec1bea2fa974e63f6059c33edde669c7894d0bc","versionType":"git"},{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"a16394b5d661afec9a264fecac3abd87aea439ea","versionType":"git"},{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"e12b95680821b9880cd9992c0f3555389363604f","versionType":"git"},{"version":"6725a88f88a7e922e91c45bf83d320487810c192","status":"affected","lessThan":"031f196d1b1b6d5dfcb0533b431e3ab1750e6189","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.9","versionType":"semver"},{"version":"5.10.176","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.104","status":"unaffected","lessThanOrEqual":"5.15.*","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":["drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7257070be70e19a9138f39009c1a26c83a8a7cfa"},{"url":"https://git.kernel.org/stable/c/bec1bea2fa974e63f6059c33edde669c7894d0bc"},{"url":"https://git.kernel.org/stable/c/a16394b5d661afec9a264fecac3abd87aea439ea"},{"url":"https://git.kernel.org/stable/c/e12b95680821b9880cd9992c0f3555389363604f"},{"url":"https://git.kernel.org/stable/c/031f196d1b1b6d5dfcb0533b431e3ab1750e6189"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:38:05.066Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"5.10.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"5.15.104"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.1.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}