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Vulnerability DatabaseCVE-2022-49924

CVE-2022-49924: 
Linux Kernel vulnerability analysis and mitigation

Overview

CVE-2022-49924 is a memory leak vulnerability discovered in the Linux kernel's NFC subsystem, specifically in the fdpncisend() function. The vulnerability was identified and disclosed on May 1, 2025, affecting various versions of the Linux kernel from 4.4 through 6.1-rc3 (NVD).

Technical details

The vulnerability occurs when fdpncisend() calls fdpncii2cwrite without properly freeing the skb (socket buffer) in the function. As a result, when fdpncii2cwrite() finishes execution, the skb memory leaks. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (MEDIUM) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (NVD, Wiz).

Impact

The memory leak vulnerability can lead to resource exhaustion over time as memory is not properly freed after use. This could potentially affect system stability and performance in systems utilizing the NFC subsystem (Wiz).

Mitigation and workarounds

The vulnerability has been addressed in the Linux kernel through a patch that ensures proper memory management by freeing the skb after fdpncii2c_write() completes. Users should update their Linux kernel to a version that includes this fix (Wiz).

Additional resources

Source: This report was generated using AI

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