BaseFortify

Publication date: 2025-10-01

Last updated on: 2026-01-16

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: MIPS: vpe-mt: fix possible memory leak while module exiting Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, it need be freed when module exiting, call put_device() to give up reference, so that it can be freed in kobject_cleanup() when the refcount hit to 0. The vpe_device is static, so remove kfree() from vpe_device_release().

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-01

Last Modified

2026-01-16

Generated

2026-07-06

AI Q&A

2025-10-01

EPSS Evaluated

2026-07-05

NVD

CVE-2022-50462

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 2.6.30 (inc) to 4.9.337 (exc)
linux	linux_kernel	From 4.10 (inc) to 4.14.303 (exc)
linux	linux_kernel	From 4.15 (inc) to 4.19.270 (exc)
linux	linux_kernel	From 4.20 (inc) to 5.4.229 (exc)
linux	linux_kernel	From 5.5 (inc) to 5.10.163 (exc)
linux	linux_kernel	From 5.11 (inc) to 5.15.86 (exc)
linux	linux_kernel	From 5.16 (inc) to 6.0.16 (exc)
linux	linux_kernel	From 6.1 (inc) to 6.1.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

This vulnerability involves a possible memory leak in the Linux kernel's MIPS vpe-mt module when the module is exiting. After a certain commit, the device name is allocated dynamically and needs to be freed properly by calling put_device() to release the reference. The vpe_device is static, so the previous method of freeing memory (kfree()) was removed from vpe_device_release(). The fix ensures that memory is correctly freed to prevent leaks.

Impact Analysis

The vulnerability can cause a memory leak in the Linux kernel module, which may lead to increased memory usage and potentially degrade system performance or stability over time if the module is frequently loaded and unloaded.

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