powerpc/64: Fix the definition of the fixmap area (Linux Linux)

CVE-2021-47018
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.24 % · centile 15 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Fix the definition of the fixmap area At the time being, the fixmap area is defined at the top of the address space or just below KASAN. This definition is not valid for PPC64. For PPC64, use the top of the I/O space. Because of circular dependencies, it is not possible to include asm/fixmap.h in asm/book3s/64/pgtable.h , so define a fixed size AREA at the top of the I/O space for fixmap and ensure during build that the size is big enough.

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 265c3491c4bc8d40587996d6ee2f447a7ccfb4f3 < 4b9fb2c9039a206d37f215936a4d5bee7b1bf9cd ; affected 265c3491c4bc8d40587996d6ee2f447a7ccfb4f3 < abb07dc5e8b61ab7b1dde20dd73aa01a3aeb183f ; affected 265c3491c4bc8d40587996d6ee2f447a7ccfb4f3 < a84df7c80bdac598d6ac9268ae578da6928883e8 ; affected 265c3491c4bc8d40587996d6ee2f447a7ccfb4f3 < 9ccba66d4d2aff9a3909aa77d57ea8b7cc166f3c
Linux · Linuxaffected 5.5 ; unaffected 0 < 5.5 ; unaffected 5.10.37 ≤ 5.10.* ; unaffected 5.11.21 ≤ 5.11.* ; unaffected 5.12.4 ≤ 5.12.* ; unaffected 5.13 ≤ *

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