wifi: mwifiex: Initialize the chan_stats array to zero (Linux Linux)

CVE-2025-39891
HIGH 7.1

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: wifi: mwifiex: Initialize the chan_stats array to zero The adapter->chan_stats[] array is initialized in mwifiex_init_channel_scan_gap() with vmalloc(), which doesn't zero out memory. The array is filled in mwifiex_update_chan_statistics() and then the user can query the data in mwifiex_cfg80211_dump_survey(). There are two potential issues here. What if the user calls mwifiex_cfg80211_dump_survey() before the data has been filled in. Also the mwifiex_update_chan_statistics() function doesn't necessarily initialize the whole array. Since the array was not initialized at the start that could result in an information leak. Also this array is pretty small. It's a maximum of 900 bytes so it's more appropriate to use kcalloc() instead vmalloc().

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected bf35443314acb43fa8a3f9f8046e14cbe178762b < 9eb0118b3470b4d2e4e3bbb1fc088b30c0285d65 ; affected bf35443314acb43fa8a3f9f8046e14cbe178762b < 05daef0442d28350a1a0d6d0e2cab4a7a91df475 ; affected bf35443314acb43fa8a3f9f8046e14cbe178762b < acdf26a912190fc6746e2a890d7d0338190527b4 ; affected bf35443314acb43fa8a3f9f8046e14cbe178762b < 32c124c9c03aa755cbaf60ef7f76afd918d47659 ; affected bf35443314acb43fa8a3f9f8046e14cbe178762b < 9df29aa5637d94d24f7c5f054ef4feaa7b766111 ; affected bf35443314acb43fa8a3f9f8046e14cbe178762b < 06616410a3e5e6cd1de5b7cbc668f1a7edeedad9
Linux · Linuxaffected 3.19 ; unaffected 0 < 3.19 ; unaffected 5.4.299 ≤ 5.4.* ; unaffected 5.10.243 ≤ 5.10.* ; unaffected 5.15.192 ≤ 5.15.* ; unaffected 6.1.151 ≤ 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