kho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES (Linux Linux)

CVE-2026-72169
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En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 11 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In 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().

Références

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 < b8271be34bce151597da5b5179e0648c281322a4 ; affected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 < 9fefab759f59bf891bef7be15aee4bc7caec7ec3 ; affected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 < 0e39380a7316122e1b00012b3f3cd3e318b3e7d3
Linux · Linuxaffected 6.16 ; unaffected 0 < 6.16 ; unaffected 6.18.42 ≤ 6.18.* ; unaffected 7.1.5 ≤ 7.1.* ; unaffected 7.2 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD