perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler (Linux Linux)

CVE-2026-53114
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.11 % · centile 1 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler Calling perf_allow_kernel() from the NMI context is unsafe and could be fatal. Capture the permission at event-initialization time by storing it in event->hw.flags, and have the NMI handler rely on that cached flag instead of making the call directly.

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 50a53b60e141d7e31368a87e222e4dd5597bd4ae < 2783ed2442ce69ae240b787aee6dae801cef7aec ; affected 50a53b60e141d7e31368a87e222e4dd5597bd4ae < 0584e74fa2b27e9e722cfb5b579f79263df20040 ; affected 50a53b60e141d7e31368a87e222e4dd5597bd4ae < b0a09142622a994c4f4088c3f61db5da87cfc711
Linux · Linuxaffected 6.14 ; unaffected 0 < 6.14 ; unaffected 6.18.33 ≤ 6.18.* ; unaffected 7.0.10 ≤ 7.0.* ; unaffected 7.1 ≤ *

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