{"id":"CVE-2023-53077","title":"drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes","summary":"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 ret…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < 7257070be70e19a9138f39009c1a26c83a8a7cfa","Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < bec1bea2fa974e63f6059c33edde669c7894d0bc","Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < a16394b5d661afec9a264fecac3abd87aea439ea","Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < e12b95680821b9880cd9992c0f3555389363604f","Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < 031f196d1b1b6d5dfcb0533b431e3ab1750e6189","Linux 5.9"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:16:33.876863Z"},"published":"2025-05-02","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:20:59.137Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53077","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"}],"tags":["cve.org"],"epss":0.00212,"epssPercentile":0.11574,"ingestedAt":"2026-11-05T22:38:31.765Z","slug":"CVE-2023-53077","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < 7257070be70e19a9138f39009c1a26c83a8a7cfa`\n- `Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < bec1bea2fa974e63f6059c33edde669c7894d0bc`\n- `Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < a16394b5d661afec9a264fecac3abd87aea439ea`\n- `Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < e12b95680821b9880cd9992c0f3555389363604f`\n- `Linux >= 6725a88f88a7e922e91c45bf83d320487810c192 < 031f196d1b1b6d5dfcb0533b431e3ab1750e6189`\n- `Linux 5.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}