powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw() (Linux Linux)

CVE-2025-38610
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 6 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw() The get_pd_power_uw() function can crash with a NULL pointer dereference when em_cpu_get() returns NULL. This occurs when a CPU becomes impossible during runtime, causing get_cpu_device() to return NULL, which propagates through em_cpu_get() and leads to a crash when em_span_cpus() dereferences the NULL pointer. Add a NULL check after em_cpu_get() and return 0 if unavailable, matching the existing fallback behavior in __dtpm_cpu_setup(). [ rjw: Drop an excess empty code line ]

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 eb82bace893169b319c563b7f813c58a0a5a9f76 < 27914f2b795e2b58e9506f281dcdd98fef09d3c2 ; affected eb82bace893169b319c563b7f813c58a0a5a9f76 < c6ec27091cf5ac05094c1fe3a6ce914cf711a37c ; affected eb82bace893169b319c563b7f813c58a0a5a9f76 < 8374ac7d69a57d737e701a851ffe980a0d27d3ad ; affected eb82bace893169b319c563b7f813c58a0a5a9f76 < 27e0318f0ea69fcfa32228847debc384ade14578 ; affected eb82bace893169b319c563b7f813c58a0a5a9f76 < 2fd001a0075ac01dc64a28a8e21226b3d989a91d ; affected eb82bace893169b319c563b7f813c58a0a5a9f76 < 46dc57406887dd02565cb264224194a6776d882b
Linux · Linuxaffected 5.16 ; unaffected 0 < 5.16 ; unaffected 6.1.148 ≤ 6.1.* ; unaffected 6.6.102 ≤ 6.6.* ; unaffected 6.12.42 ≤ 6.12.* ; unaffected 6.15.10 ≤ 6.15.*

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