drm/panfrost: Fix GEM handle creation ref-counting (Linux Linux)

CVE-2022-50417
HIGH 7.8

En bref

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

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix GEM handle creation ref-counting panfrost_gem_create_with_handle() previously returned a BO but with the only reference being from the handle, which user space could in theory guess and release, causing a use-after-free. Additionally if the call to panfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then a(nother) reference on the BO was dropped. The _create_with_handle() is a problematic pattern, so ditch it and instead create the handle in panfrost_ioctl_create_bo(). If the call to panfrost_gem_mapping_get() fails then this means that user space has indeed gone behind our back and freed the handle. In which case just return an error code.

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

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:HCISA-ADP
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected f3ba91228e8e917e5bd6c4b72bfe846933d17370 < 0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c ; affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 < 4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a ; affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 < 3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2 ; affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 < ba3d2c2380e7129b525a787489c0b7e819a3b898 ; affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 < 4217c6ac817451d5116687f3cc6286220dc43d49
Linux · Linuxaffected 5.2 ; unaffected 0 < 5.2 ; unaffected 5.10.163 ≤ 5.10.* ; unaffected 5.15.87 ≤ 5.15.* ; unaffected 6.0.19 ≤ 6.0.* ; unaffected 6.1.5 ≤ 6.1.*

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