wifi: brcmfmac: pcie: handle randbuf allocation failure (Linux Linux)

CVE-2024-38575
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.22 % · centile 13 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: pcie: handle randbuf allocation failure The kzalloc() in brcmf_pcie_download_fw_nvram() will return null if the physical memory has run out. As a result, if we use get_random_bytes() to generate random bytes in the randbuf, the null pointer dereference bug will happen. In order to prevent allocation failure, this patch adds a separate function using buffer on kernel stack to generate random bytes in the randbuf, which could prevent the kernel stack from overflow.

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 c35105f375b530bc27e03ea9250b1c26dd4cae86 < 0eb2c0528e232b3c32cde9d5e1c9f80ba2996e49 ; affected 91918ce88d9fef408bb12c46a27c73d79b604c20 < c37466406f075476c2702ecc01917928af871f3b ; affected 91918ce88d9fef408bb12c46a27c73d79b604c20 < 7c15eb344b0d4d3468c9b2a7591ad2b859b29b88 ; affected 91918ce88d9fef408bb12c46a27c73d79b604c20 < 3729ca9e48d19a03ae049e2bde510e161c2f3720 ; affected 91918ce88d9fef408bb12c46a27c73d79b604c20 < 316f790ebcf94bdf59f794b7cdea4068dc676d4c ; affected ba72baed066f3bfa8b489e4b58f1fcaf51c04f83
Linux · Linuxaffected 6.4 ; unaffected 0 < 6.4 ; unaffected 6.1.93 ≤ 6.1.* ; unaffected 6.6.33 ≤ 6.6.* ; unaffected 6.8.12 ≤ 6.8.* ; unaffected 6.9.3 ≤ 6.9.*

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