What’s Vulnerable › Vulnerabilities

CVE-2024-57997: wifi: wcn36xx: fix channel survey memory allocation size

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-27 · updated 2026-08-04
• Weakness: CWE-908

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wcn36xx: fix channel survey memory allocation size KASAN reported a memory allocation issue in wcn->chan_survey due to incorrect size calculation. This commit uses kcalloc to allocate memory for wcn->chan_survey, ensuring proper initialization and preventing the use of uninitialized values when there are no frames on the channel.

Affected products

• Linux kernel: from 5.18 before 6.1.129; from 6.2 before 6.6.76; from 6.7 before 6.12.13; from 6.13 before 6.13.2 — fixed in 6.1.129, 6.12.13, 6.13.2, 6.6.76

How to fix

Upgrade to a fixed version: Linux kernel 6.1.129, 6.12.13, 6.13.2, 6.6.76. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/34cd2817708aec51ef1a6c007e0d6d5342a025d7
• https://git.kernel.org/stable/c/6200d947f050efdba4090dfefd8a01981363d954
• https://git.kernel.org/stable/c/64c4dcaeac1dc1030e47883b04a617ca9a4f164e
• https://git.kernel.org/stable/c/ae68efdff7a7a42ab251cac79d8713de6f0dbaa0
• https://git.kernel.org/stable/c/e95f9c408ff8311f75eeabc8acf34a66670d8815
• https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html

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