CVE-2022-49490

drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected

MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.27 % · centile 19 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected mdp5_get_global_state runs the risk of hitting a -EDEADLK when acquiring the modeset lock, but currently mdp5_pipe_release doesn't check for if an error is returned. Because of this, there is a possibility of mdp5_pipe_release hitting a NULL dereference error. To avoid this, let's have mdp5_pipe_release check if mdp5_get_global_state returns an error and propogate that error. Changes since v1: - Separated declaration and initialization of *new_state to avoid compiler warning - Fixed some spelling mistakes in commit message Changes since v2: - Return 0 in case where hwpipe is NULL as this is considered normal behavior - Added 2nd patch in series to fix a similar NULL dereference issue in mdp5_mixer_release Patchwork: https://patchwork.freedesktop.org/patch/485179/

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

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 7907a0d77cb461f58045763c205a5830be72e97c < 776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b ; affected 7907a0d77cb461f58045763c205a5830be72e97c < b2aa2c4efe93e2580d6a8774b04fe2b99756a322 ; affected 7907a0d77cb461f58045763c205a5830be72e97c < 49dc28b4b2e28ef7564e355c91487996c1cbebd7 ; affected 7907a0d77cb461f58045763c205a5830be72e97c < 04bef5f1ba8ea6d7c1c8f5f65e0395c62db59cb8 ; affected 7907a0d77cb461f58045763c205a5830be72e97c < 19964dfb39bda4d7716a71009488f0668ecbcf52 ; affected 7907a0d77cb461f58045763c205a5830be72e97c < 33dc5aac46e0fad8f5eb193e5906ed0eb6b66ceb
Linux · Linuxaffected 4.18 ; unaffected 0 < 4.18 ; unaffected 4.19.247 ≤ 4.19.* ; unaffected 5.4.198 ≤ 5.4.* ; unaffected 5.10.121 ≤ 5.10.* ; unaffected 5.15.46 ≤ 5.15.*

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