CVE-2023-52776

HighCVSS 8.8/10Last modified Aug 4, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath12k: fix dfs-radar and temperature event locking

The ath12k active pdevs are protected by RCU but the DFS-radar and temperature event handling code calling ath12k_mac_get_ar_by_pdev_id() was not marked as a read-side critical section.

Mark the code in question as RCU read-side critical sections to avoid any potential use-after-free issues.

Note that the temperature event handler looks like a place holder currently but would still trigger an RCU lockdep splat.

Compile tested only.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 774de37c147fea81f2c2e4be5082304f4f71d535; >= d889913205cf7ebda905b1e62c5867ed4e39f6c2, < d7a5f7f76568e48869916d769e28b9f3ca70c78e; >= d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 69bd216e049349886405b1c87a55dce3d35d1ba7
LinuxLinux6.3

References

Timeline

Published
May 21, 2024
Last modified
Aug 4, 2026
NVD status
Modified

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CVE-2023-52776: High severity, CVSS 8.8 | Vulnix