CVE-2026-31760
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Memory Leak in Linux Kernel GPIB Driver

Publication date: 2026-05-01

Last updated on: 2026-05-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: gpib: lpvo_usb: fix memory leak on disconnect The driver iterates over the registered USB interfaces during GPIB attach and takes a reference to their USB devices until a match is found. These references are never released which leads to a memory leak when devices are disconnected. Fix the leak by dropping the unnecessary references.
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Meta Information
Published
2026-05-01
Last Modified
2026-05-08
Generated
2026-06-16
AI Q&A
2026-05-02
EPSS Evaluated
2026-06-15
NVD
CVE-2026-31760
EUVD
EUVD-2026-26573
Affected Vendors & Products
Showing 8 associated CPEs
Vendor Product Version / Range
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel From 6.13 (inc) to 6.18.22 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.12 (exc)
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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Compliance Impact

The vulnerability described is a memory leak in the Linux kernel's gpib: lpvo_usb driver related to USB device references not being released on disconnect.

There is no information provided about any impact on data confidentiality, integrity, or availability that would relate to compliance with standards such as GDPR or HIPAA.

Therefore, based on the available information, this vulnerability does not have a direct or stated effect on compliance with common standards and regulations like GDPR or HIPAA.

Executive Summary

This vulnerability exists in the Linux kernel's gpib driver, specifically in the lpvo_usb component. The driver iterates over registered USB interfaces during the GPIB attach process and takes references to their USB devices until it finds a match. However, these references are never released, which causes a memory leak when devices are disconnected.

The issue was fixed by dropping the unnecessary references to prevent the memory leak.

Impact Analysis

This vulnerability can lead to a memory leak in the Linux kernel when USB devices are disconnected. Over time, this memory leak could cause increased memory usage, potentially degrading system performance or leading to system instability if the leak is significant and persistent.

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