CVE-2023-54123
Unknown Unknown - Not Provided
Memory Leak in Linux Kernel md/raid10 Component Fixed

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix memleak for 'conf->bio_split' In the error path of raid10_run(), 'conf' need be freed, however, 'conf->bio_split' is missed and memory will be leaked. Since there are 3 places to free 'conf', factor out a helper to fix the problem.
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Meta Information
Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-06-16
AI Q&A
2025-12-24
EPSS Evaluated
2026-06-14
NVD
CVE-2023-54123
EUVD
EUVD-2023-60322
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a memory leak in the Linux kernel's RAID10 implementation. Specifically, in the error handling path of the raid10_run() function, a structure called 'conf' is freed, but a member 'conf->bio_split' is not freed, causing memory to be leaked. The fix involved creating a helper function to properly free all parts of 'conf' to prevent the leak.

Impact Analysis

The memory leak can cause the system to consume more memory over time, potentially leading to degraded performance or system instability, especially on systems using RAID10 configurations. This could result in crashes or reduced availability if the leak is significant.

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