pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config() (Linux Linux)

CVE-2025-37850
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.30 % · centile 23 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config() With CONFIG_COMPILE_TEST && !CONFIG_HAVE_CLK, pwm_mediatek_config() has a divide-by-zero in the following line: do_div(resolution, clk_get_rate(pc->clk_pwms[pwm->hwpwm])); due to the fact that the !CONFIG_HAVE_CLK version of clk_get_rate() returns zero. This is presumably just a theoretical problem: COMPILE_TEST overrides the dependency on RALINK which would select COMMON_CLK. Regardless it's a good idea to check for the error explicitly to avoid divide-by-zero. Fixes the following warning: drivers/pwm/pwm-mediatek.o: warning: objtool: .text: unexpected end of section [ukleinek: s/CONFIG_CLK/CONFIG_HAVE_CLK/]

Faiblesses (CWE)

  • CWE-369 — Division par zéro

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 caf065f8fd583b43a3f95d84c8a0a0d07597963b < 8b9f60725d74b72c238e4437c957d0217746b506 ; affected caf065f8fd583b43a3f95d84c8a0a0d07597963b < e1206d8e1651c9f62e5640b69b14d925b1a0a00a ; affected caf065f8fd583b43a3f95d84c8a0a0d07597963b < e3cf0c38d3ce754ad63005102fcfeb0b7ff3290b ; affected caf065f8fd583b43a3f95d84c8a0a0d07597963b < f3e9cf266c2c103cf071e15d7a17e2c699fff3c5 ; affected caf065f8fd583b43a3f95d84c8a0a0d07597963b < 8ddbec73ea2598d8414e8f7103241b55cf877010 ; affected caf065f8fd583b43a3f95d84c8a0a0d07597963b < 4cb15042b5f3ec0474e91cf379120cc597625dbb
Linux · Linuxaffected 4.12 ; unaffected 0 < 4.12 ; unaffected 5.4.293 ≤ 5.4.* ; unaffected 5.10.237 ≤ 5.10.* ; unaffected 5.15.181 ≤ 5.15.* ; unaffected 6.1.135 ≤ 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