CVE-2022-50871
Unknown Unknown - Not Provided

Out-of-Bounds Access in Linux ath11k QMI Handler Causes Infinite Loop

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Fix qmi_msg_handler data structure initialization qmi_msg_handler is required to be null terminated by QMI module. There might be a case where a handler for a msg id is not present in the handlers array which can lead to infinite loop while searching the handler and therefore out of bound access in qmi_invoke_handler(). Hence update the initialization in qmi_msg_handler data structure. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

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Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50871

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
linux kernel *
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is in the Linux kernel's wifi component, specifically the ath11k driver. The issue is that the qmi_msg_handler data structure was not properly null-terminated as required by the QMI module. If a handler for a specific message ID is missing in the handlers array, the code can enter an infinite loop while searching for the handler, which can lead to out-of-bounds memory access in the qmi_invoke_handler() function. The fix involved updating the initialization of the qmi_msg_handler data structure to ensure proper null termination.

Impact Analysis

This vulnerability can cause an infinite loop and out-of-bounds memory access in the Linux kernel's wifi driver. Such behavior can lead to system instability, crashes, or potentially allow an attacker to execute arbitrary code or cause denial of service by exploiting the memory corruption.

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