CVE-2025-68195
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BaseFortify

Publication date: 2025-12-16

Last updated on: 2025-12-18

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode Running x86_match_min_microcode_rev() on a Zen5 CPU trips up KASAN for an out of bounds access.
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Meta Information
Published
2025-12-16
Last Modified
2025-12-18
Generated
2026-06-16
AI Q&A
2025-12-16
EPSS Evaluated
2026-06-14
NVD
CVE-2025-68195
EUVD
EUVD-2025-203701
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel involves the x86/CPU/AMD code, specifically a missing terminator for zen5_rdseed_microcode. When the function x86_match_min_microcode_rev() runs on a Zen5 CPU, it causes the Kernel Address Sanitizer (KASAN) to detect an out-of-bounds memory access, which indicates improper handling of microcode data.

Impact Analysis

The vulnerability can lead to out-of-bounds memory access in the Linux kernel when running on a Zen5 CPU. This could potentially cause system instability, crashes, or security issues related to memory corruption.

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