CVE-2022-50809
Unknown Unknown - Not Provided

Memory Leak in Linux Kernel xHCI DbC Component

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: xhci: dbc: Fix memory leak in xhci_alloc_dbc() If DbC is already in use, then the allocated memory for the xhci_dbc struct doesn't get freed before returning NULL, which leads to a memleak.

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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-2022-50809
EUVD
EUVD-2022-55889

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
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 a memory leak in the Linux kernel's xHCI driver related to the Debug Capability (DbC) feature. Specifically, if DbC is already in use, the allocated memory for the xhci_dbc structure is not freed properly before the function returns NULL, causing a memory leak.

Impact Analysis

The memory leak can lead to increased memory usage over time, potentially degrading system performance or causing resource exhaustion if the issue occurs repeatedly.

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