net: phy: leds: fix memory leak (Linux Linux)

CVE-2025-37989
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: net: phy: leds: fix memory leak A network restart test on a router led to an out-of-memory condition, which was traced to a memory leak in the PHY LED trigger code. The root cause is misuse of the devm API. The registration function (phy_led_triggers_register) is called from phy_attach_direct, not phy_probe, and the unregister function (phy_led_triggers_unregister) is called from phy_detach, not phy_remove. This means the register and unregister functions can be called multiple times for the same PHY device, but devm-allocated memory is not freed until the driver is unbound. This also prevents kmemleak from detecting the leak, as the devm API internally stores the allocated pointer. Fix this by replacing devm_kzalloc/devm_kcalloc with standard kzalloc/kcalloc, and add the corresponding kfree calls in the unregister path.

Faiblesses (CWE)

  • CWE-401 — Mémoire non libérée après sa durée de vie utile

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 2e0bc452f4721520502575362a9cd3c1248d2337 < 966d6494e2ed9be9052fcd9815afba830896aaf8 ; affected 2e0bc452f4721520502575362a9cd3c1248d2337 < 95bed65cc0eb2a610550abf849a8b94374da80a7 ; affected 2e0bc452f4721520502575362a9cd3c1248d2337 < 663c3da86e807c6c07ed48f911c7526fad6fe1ff ; affected 2e0bc452f4721520502575362a9cd3c1248d2337 < f41f097f68a33d392579885426d0734a81219501 ; affected 2e0bc452f4721520502575362a9cd3c1248d2337 < 618541a6cc1511064dfa58c89b3445e21844092f ; affected 2e0bc452f4721520502575362a9cd3c1248d2337 < 41143e71052a00d654c15dc924fda50c1e7357d0
Linux · Linuxaffected 4.10 ; unaffected 0 < 4.10 ; unaffected 5.4.293 ≤ 5.4.* ; unaffected 5.10.237 ≤ 5.10.* ; unaffected 5.15.181 ≤ 5.15.* ; unaffected 6.1.136 ≤ 6.1.*

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