drm/amdgpu/vce: fix integer overflow in image size

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-68108
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:19:55 UTC
Updated2026-08-10 13:19:55 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vce: fix integer overflow in image size Fix a security vulnerability where malicious VCE command streams with oversized dimensions (e.g. 65536×65536) cause 32-bit integer overflow, wrapping the calculated buffer size to 0. This bypasses validation and allows GPU firmware to perform out-of-bound memory access. The fix uses 64-bit arithmetic to detect overflow and rejects invalid dimensions before they reach the hardware. V2: remove redundant check V3: modify max height value V4: remove size64 (cherry picked from commit cbe408dba581755ad1279a487ec786d8927d778d)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 a07430abd556de3707adfcadcc60db3fa64e4b2b git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 a6d7065b91a14790980ce6f4960db0ca8c3c9940 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 7eebef042c12dfe0568593ee6a8926d16505925e git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 00c311a13d225266800c712f2b7db2711c6897de git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 186bfdc4e26d019b2e7570cb121964a1d89b2e5b git Not specified
CNA Linux Linux affected 6.6.148 semver Not specified
CNA Linux Linux affected 6.12.101 semver Not specified
CNA Linux Linux affected 6.18.42 semver Not specified
CNA Linux Linux affected 7.1.6 semver Not specified
CNA Linux Linux unaffected 6.6.148 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.101 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7eebef042c12dfe0568593ee6a8926d16505925e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a07430abd556de3707adfcadcc60db3fa64e4b2b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/186bfdc4e26d019b2e7570cb121964a1d89b2e5b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a6d7065b91a14790980ce6f4960db0ca8c3c9940 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/00c311a13d225266800c712f2b7db2711c6897de 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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