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Vulnerability DatabaseCVE-2025-39761
CVE-2025-39761:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2025-39761 is a vulnerability discovered in the Linux kernel affecting the wifi ath12k component. The vulnerability was disclosed on September 11, 2025, and involves an issue where TID is not properly decremented before peer cleanup during error handling in the ath12kdprxpeerfrag_setup() function (NVD CVE).
Technical details
The vulnerability stems from a missing decrement operation for TID before peer cleanup in the error handling path of ath12kdprxpeerfragsetup(). This oversight could potentially lead to out-of-bounds access in the peer->rxtid[] array. The issue was identified during code review and has been compile tested (NVD CVE).
Impact
The vulnerability could result in out-of-bounds access issues when the RX peer frag setup fails, potentially affecting the stability and security of the wifi subsystem in the Linux kernel (NVD CVE).
Mitigation and workarounds
A fix has been implemented that adds a decrement operation for TID before peer cleanup to ensure proper cleanup and prevent out-of-bounds access issues (NVD CVE).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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