drm/amd/display: Validate GPIO pin LUT table size before iterating (Linux Linux)

CVE-2026-64097
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.13 % · centile 3 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Validate GPIO pin LUT table size before iterating [Why&How] The GPIO pin table parsers in get_gpio_i2c_info() and bios_parser_get_gpio_pin_info() derive an element count from the VBIOS table_header.structuresize field, then iterate over gpio_pin[] entries. However, GET_IMAGE() only validates that the table header itself fits within the BIOS image. If the VBIOS reports a structuresize larger than the actual mapped data, the loop reads past the end of the BIOS image, causing an out-of-bounds read. Fix this by calling bios_get_image() to validate that the full claimed structuresize is accessible within the BIOS image before entering the loop in both functions. (cherry picked from commit ba5e95b43b773ae1bf1f66ee6b31eb774e65afe3)

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < 9900f6954be779011e7c2cd42addd87baf028bc5 ; affected ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < fb30a3890d62fd50a95aef684faf64a307592e42 ; affected ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < 67461e0c15335894cc5d3b84cda823bf8cbdc886 ; affected ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < 7ca695b3122297b06a3ed605bbe1cd32c85d9f5a ; affected ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < f2a4827e980ba07de4391fa84d9c39a12726bdd7 ; affected ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < 86d2b20644b11d21fe52c596e6e922b4590a3e3f
Linux · Linuxaffected 4.15 ; unaffected 0 < 4.15 ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.142 ≤ 6.6.* ; unaffected 6.12.92 ≤ 6.12.* ; unaffected 6.18.34 ≤ 6.18.*

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