What’s Vulnerable › Vulnerabilities

CVE-2023-52769: wifi: ath12k: fix htt mlo-offset event locking

• Severity: high (CVSS 7.8 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-416

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix htt mlo-offset event locking The ath12k active pdevs are protected by RCU but the htt mlo-offset 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 an RCU read-side critical section to avoid any potential use-after-free issues. 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/6afc57ea315e0f660b1f870a681737bb7b71faef
• https://git.kernel.org/stable/c/afd3425bd69610f318403084fe491e24a1357fb9
• https://git.kernel.org/stable/c/d908ca431e20b0e4bfc5d911d1744910ed779bdb
• https://git.kernel.org/stable/c/6afc57ea315e0f660b1f870a681737bb7b71faef
• https://git.kernel.org/stable/c/afd3425bd69610f318403084fe491e24a1357fb9
• https://git.kernel.org/stable/c/d908ca431e20b0e4bfc5d911d1744910ed779bdb

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