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Vulnerability DatabaseCVE-2022-50557
CVE-2022-50557:
Linux Debian vulnerability analysis and mitigation
Overview
In the Linux kernel, a memory leak vulnerability (CVE-2022-50557) was identified in the thunderbaybuildfunctions() function of the pinctrl thunderbay driver. The vulnerability was published on October 22, 2025 (NVD).
Technical details
The vulnerability occurs when thunderbayaddfunctions() fails, as it does not properly free the thunderbayfuncs memory allocation. While thunderbayaddfunctions() frees the memory when operations complete successfully, the memory is not freed in failure scenarios, resulting in a memory leak. The fix involves adding kfree() when thunderbayaddfunctions() fails and reorganizing the code to move kfree(funcs) from thunderbayaddfunctions() to thunderbaybuild_functions() (NVD).
Impact
The vulnerability results in a memory leak in the Linux kernel's pinctrl thunderbay driver, which could potentially lead to system resource exhaustion over time (NVD).
Mitigation and workarounds
The vulnerability has been resolved through a patch that properly implements memory cleanup in failure scenarios and reorganizes the memory deallocation code (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Debian vulnerabilities:
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