drm/gma500/oaktrail_lvds: fix hang on init failure (Linux Linux)

CVE-2026-53279
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.16 % · centile 5 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: drm/gma500/oaktrail_lvds: fix hang on init failure The LVDS init code looks up an I2C adapter using i2c_get_adapter() and tries to read the EDID before falling back to allocating and registering its own adapter. The error handling does not separate these cases so on a late init failure it will try to deregister and free also an adapter that had previously been registered. Since i2c_get_adapter() takes another reference to the adapter, deregistration hangs indefinitely while waiting for the reference to be released. Fix this by only destroying adapters allocated during LVDS init on errors.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 < 5fe9f505d8578852c30668567bc3ce52e776e8c7 ; affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 < 4e04b564c005c9900643c56656d751ad677889be ; affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 < 7877f7e231a8bd5c817af1491276550a5e195cd7 ; affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 < ab9256936b58eb178caddcf5b5b1638f079909d2 ; affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 < f6fc44af3bbd5ab0fb6bdec6f47decca11b38425 ; affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 < 657a091ab6d01d0091b77660c75cfed573c9a53e
Linux · Linuxaffected 6.0 ; unaffected 0 < 6.0 ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.141 ≤ 6.6.* ; unaffected 6.12.91 ≤ 6.12.* ; unaffected 6.18.33 ≤ 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