kho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72169
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:21:34 UTC
Updated2026-08-17 06:18:17 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: kho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES When using scratch_scale, the scratch sizes are rounded up to CMA_MIN_ALIGNMENT_BYTES since they will be released as MIGRATE_CMA. This is not done when using fixed scratch sizes via command line. This can result in user specifying a size which is not aligned, and thus kernel releasing a pageblock that is only partially scratch. Do the rounding up for both cases in scratch_size_update().

Risk And Classification

EPSS: 0.001980000 probability, percentile 0.099070000 (date 2026-08-17)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 b8271be34bce151597da5b5179e0648c281322a4 git Not specified
CNA Linux Linux affected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 9fefab759f59bf891bef7be15aee4bc7caec7ec3 git Not specified
CNA Linux Linux affected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 0e39380a7316122e1b00012b3f3cd3e318b3e7d3 git Not specified
CNA Linux Linux affected 6.16 Not specified
CNA Linux Linux unaffected 6.16 semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b8271be34bce151597da5b5179e0648c281322a4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9fefab759f59bf891bef7be15aee4bc7caec7ec3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0e39380a7316122e1b00012b3f3cd3e318b3e7d3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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