perf/x86/amd/core: Always clear status for idx (Linux Linux)

CVE-2023-53073
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.20 % · centile 10 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/core: Always clear status for idx The variable 'status' (which contains the unhandled overflow bits) is not being properly masked in some cases, displaying the following warning: WARNING: CPU: 156 PID: 475601 at arch/x86/events/amd/core.c:972 amd_pmu_v2_handle_irq+0x216/0x270 This seems to be happening because the loop is being continued before the status bit being unset, in case x86_perf_event_set_period() returns 0. This is also causing an inconsistency because the "handled" counter is incremented, but the status bit is not cleaned. Move the bit cleaning together above, together when the "handled" counter is incremented.

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 7685665c390dc68c2d9a74e8445f41494cc8f6cf < ab33a8f7649b0324639a336e1081aaea51a4523e ; affected 7685665c390dc68c2d9a74e8445f41494cc8f6cf < 9d4c7b1f12e101d6d6253092588b127416ddfb6c ; affected 7685665c390dc68c2d9a74e8445f41494cc8f6cf < 263f5ecaf7080513efc248ec739b6d9e00f4129f
Linux · Linuxaffected 5.19 ; unaffected 0 < 5.19 ; unaffected 6.1.22 ≤ 6.1.* ; unaffected 6.2.9 ≤ 6.2.* ; unaffected 6.3 ≤ *

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