CVE-2022-50247
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-11-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: usb: xhci-mtk: fix leakage of shared hcd when fail to set wakeup irq Can not set the @shared_hcd to NULL before decrease the usage count by usb_put_hcd(), this will cause the shared hcd not released.
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Meta Information
Published
2025-09-15
Last Modified
2025-11-24
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-14
NVD
CVE-2022-50247
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
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Executive Summary

This vulnerability is in the Linux kernel's usb subsystem, specifically in the xhci-mtk driver. It involves a failure to set the shared host controller driver (shared_hcd) pointer to NULL before decreasing its usage count with usb_put_hcd(). Because of this, the shared host controller driver is not properly released, leading to a resource leakage.

Impact Analysis

The impact of this vulnerability is a leakage of the shared host controller driver resource. This could potentially lead to resource exhaustion or instability in the USB subsystem of the Linux kernel, possibly affecting system reliability or causing unexpected behavior when managing USB devices.

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