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CVE-2023-52829

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

HIGH
8.4
CVSS Score
Published: May 21, 2024 at 03:31 PM UTC
Updated: August 5, 2026 at 10:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.3 ≤ v < 6.5.136.3 ≤ v < 6.6.36.3 ≤ v < 6.76.6 ≤ v < 6.6.36.3d889913205cf7ebda905b1e62c5867ed4e39f6c2
Vendor states this is fixed in 4dd0547e8b45faf6f95373be5436b66cde326c0e (fixed)
Vendor states this is fixed in b302dce3d9edea5b93d1902a541684a967f3c63c (fixed)
Vendor states this is fixed in dfe13eaab043130f90dd3d57c7d88577c04adc97 (fixed)
Vendor states this is fixed in 6.3 (unaffected)
Vendor states this is fixed in 6.5.13 (unaffected)
Vendor states this is fixed in 6.6.3 (unaffected)
Vendor states this is fixed in 6.7 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4dd0547e8b45faf6f95373be5436b66cde326c0e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b302dce3d9edea5b93d1902a541684a967f3c63c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/dfe13eaab043130f90dd3d57c7d88577c04adc97

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.4HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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