CVE-2026-46221
Analyzed Analyzed - Analysis Complete
EDAC/versalnet Memory Leak Fix in Linux Kernel

Publication date: 2026-05-28

Last updated on: 2026-06-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: EDAC/versalnet: Fix device name memory leak The device name allocated via kzalloc() in init_one_mc() is assigned to dev->init_name but never freed on the normal removal path. device_register() copies init_name and then sets dev->init_name to NULL, so the name pointer becomes unreachable from the device. Thus leaking memory. Use a stack-local char array instead of using kzalloc() for name.
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Meta Information
Published
2026-05-28
Last Modified
2026-06-10
Generated
2026-06-17
AI Q&A
2026-05-28
EPSS Evaluated
2026-06-16
NVD
CVE-2026-46221
EUVD
EUVD-2026-32848
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
linux linux_kernel 7.1
linux linux_kernel 7.1
linux linux_kernel From 6.18 (inc) to 6.18.32 (exc)
linux linux_kernel From 6.19 (inc) to 7.0.9 (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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Mitigation Strategies

The vulnerability involves a memory leak in the Linux kernel's EDAC/versalnet driver due to improper freeing of device name memory.

To mitigate this vulnerability, update your Linux kernel to a version where this issue is fixed, as the fix involves changing the allocation method for the device name from kzalloc() to a stack-local char array.

Compliance Impact

The vulnerability described is a memory leak in the Linux kernel related to device name allocation and freeing. There is no information provided about any impact on data privacy, data protection, or regulatory compliance such as GDPR or HIPAA.

Memory leaks typically affect system stability and resource usage rather than compliance with data protection standards.

Executive Summary

This vulnerability is a memory leak in the Linux kernel related to the EDAC/versalnet driver. Specifically, the device name allocated using kzalloc() in the function init_one_mc() is assigned to dev->init_name but is never freed during the normal device removal process. Since device_register() copies the init_name and then sets dev->init_name to NULL, the original allocated memory becomes unreachable and is therefore leaked.

The fix involves using a stack-local character array instead of dynamically allocating memory with kzalloc() for the device name, preventing the memory leak.

Impact Analysis

This vulnerability can lead to a memory leak in the Linux kernel, which means that memory allocated for device names is not properly freed when devices are removed. Over time, this can cause increased memory usage and potentially degrade system performance or stability, especially on systems where devices are frequently added and removed.

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