drm/komeda: fix integer overflow in AFBC framebuffer size check (Linux Linux)

CVE-2026-53068
HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 6 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: drm/komeda: fix integer overflow in AFBC framebuffer size check The AFBC framebuffer size validation calculates the minimum required buffer size by adding the AFBC payload size to the framebuffer offset. This addition is performed without checking for integer overflow. If the addition oveflows, the size check may incorrectly succed and allow userspace to provide an undersized drm_gem_object, potentially leading to out-of-bounds memory access. Add usage of check_add_overflow() to safely compute the minimum required size and reject the framebuffer if an overflow is detected. This makes the AFBC size validation more robust against malformed. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HLinux
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 65ad2392dd6d1691db93e82b08d3311298b9d64a < a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7 ; affected 65ad2392dd6d1691db93e82b08d3311298b9d64a < e27b58095d7d3ac72f230e318838dee956258460 ; affected 65ad2392dd6d1691db93e82b08d3311298b9d64a < 02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583 ; affected 65ad2392dd6d1691db93e82b08d3311298b9d64a < d8a541906860aa3519b1874780d933c766918a7c ; affected 65ad2392dd6d1691db93e82b08d3311298b9d64a < 8165e8b28fdf392c2c7412518d602b4f193812a8 ; affected 65ad2392dd6d1691db93e82b08d3311298b9d64a < fe1f80f8f6e8611ac6349b9d464e8750443390cf
Linux · Linuxaffected 5.3 ; unaffected 0 < 5.3 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.141 ≤ 6.6.*

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