drm/radeon: fix integer overflow in radeon_align_pitch()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74417
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:43 UTC
Updated2026-08-15 06:22:43 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix integer overflow in radeon_align_pitch() radeon_align_pitch() has the same kind of overflow issue as the old amdgpu helper: both the alignment round-up add and the final 'aligned * cpp' calculation can overflow signed int. If that wraps, radeon_mode_dumb_create() can end up returning an invalid pitch or creating a zero-sized dumb buffer. Fix this by using check_add_overflow() for the alignment round-up and check_mul_overflow() for the final pitch calculation, returning 0 on overflow. Also reject zero pitch and size in radeon_mode_dumb_create(). Found via AST-based call-graph analysis using sqry.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ff72145badb834e8051719ea66e024784d000cb4 b7b44937c548c2c987fcdd129f8896741004bed6 git Not specified
CNA Linux Linux affected ff72145badb834e8051719ea66e024784d000cb4 415bb9893e249e46aa5159f7363a11512cf06fa9 git Not specified
CNA Linux Linux affected ff72145badb834e8051719ea66e024784d000cb4 d9dfa176899d488e48bb7342d2c43ddd36e66318 git Not specified
CNA Linux Linux affected ff72145badb834e8051719ea66e024784d000cb4 dfc7b5b5599472277e71e5bd2712740651c7c5be git Not specified
CNA Linux Linux affected ff72145badb834e8051719ea66e024784d000cb4 ce3b24eb3ee8f82de851535f516bf21f83e82259 git Not specified
CNA Linux Linux affected 2.6.39 Not specified
CNA Linux Linux unaffected 2.6.39 semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/415bb9893e249e46aa5159f7363a11512cf06fa9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b7b44937c548c2c987fcdd129f8896741004bed6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dfc7b5b5599472277e71e5bd2712740651c7c5be 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ce3b24eb3ee8f82de851535f516bf21f83e82259 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d9dfa176899d488e48bb7342d2c43ddd36e66318 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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