xhci: Fix null pointer dereference in remove if xHC has only one roothub (Linux Linux)

CVE-2022-49962
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 12 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference in remove if xHC has only one roothub The remove path in xhci platform driver tries to remove and put both main and shared hcds even if only a main hcd exists (one roothub) This causes a null pointer dereference in reboot for those controllers. Check that the shared_hcd exists before trying to remove it.

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 e0fe986972f5b6b12086c73569206dd29c520be9 < 7081b2f34ff291ada012bd6abacaf7d51c4cf73f ; affected e0fe986972f5b6b12086c73569206dd29c520be9 < 4a593a62a9e3a25ab4bc37f612e4edec144f7f43
Linux · Linuxaffected 5.19 ; unaffected 0 < 5.19 ; unaffected 5.19.8 ≤ 5.19.* ; unaffected 6.0 ≤ *

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