CVE-2022-50462
Analyzed Analyzed - Analysis Complete
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().
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Meta Information
Published
2025-10-01
Last Modified
2026-01-16
Generated
2026-06-16
AI Q&A
2025-10-01
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50462
Affected Vendors & Products
Showing 8 associated CPEs
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)
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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 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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