What’s Vulnerable › Vulnerabilities

CVE-2023-52829: wifi: ath12k: fix possible out-of-bound write in ath12k_wmi_ext_hal_reg_caps()

• Severity: high (CVSS 8.4 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: 2024-05-21 · updated 2026-08-04
• Weakness: CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix possible out-of-bound write in ath12k_wmi_ext_hal_reg_caps() reg_cap.phy_id is extracted from WMI event and could be an unexpected value in case some errors happen. As a result out-of-bound write may occur to soc->hal_reg_cap. Fix it by validating reg_cap.phy_id before using it. This is found during code review. Compile tested only.

Affected products

• Linux kernel: from 6.3 before 6.5.13; from 6.6 before 6.6.3 — fixed in 6.5.13, 6.6.3

How to fix

Upgrade to a fixed version: Linux kernel 6.5.13, 6.6.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4dd0547e8b45faf6f95373be5436b66cde326c0e
• https://git.kernel.org/stable/c/b302dce3d9edea5b93d1902a541684a967f3c63c
• https://git.kernel.org/stable/c/dfe13eaab043130f90dd3d57c7d88577c04adc97
• https://git.kernel.org/stable/c/4dd0547e8b45faf6f95373be5436b66cde326c0e
• https://git.kernel.org/stable/c/b302dce3d9edea5b93d1902a541684a967f3c63c
• https://git.kernel.org/stable/c/dfe13eaab043130f90dd3d57c7d88577c04adc97

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