Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode Running… (CVE-2025-68195)
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.
AI Analysis
Technical Summary
The Linux kernel contained a vulnerability identified as CVE-2025-68195, where the function x86_match_min_microcode_rev() on AMD Zen5 CPUs caused an out-of-bounds memory access due to a missing terminator in the zen5_rdseed_microcode data. This flaw was detected by the Kernel Address Sanitizer (KASAN) and could lead to a high-severity issue affecting confidentiality and availability of the system. The vulnerability has been resolved in the Linux kernel, though specific affected versions or patch details were not provided in the source data.
Potential Impact
The vulnerability allows an out-of-bounds memory access when running kernel code on AMD Zen5 CPUs, potentially leading to a high impact on system confidentiality and availability. There is no indication of integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. However, specific patch versions or updates were not provided in the available data. Users should monitor official Linux kernel advisories and update to the latest kernel versions that include this fix. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode Running… (CVE-2025-68195)
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.
CVSS v3.1
Score 7.1high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel contained a vulnerability identified as CVE-2025-68195, where the function x86_match_min_microcode_rev() on AMD Zen5 CPUs caused an out-of-bounds memory access due to a missing terminator in the zen5_rdseed_microcode data. This flaw was detected by the Kernel Address Sanitizer (KASAN) and could lead to a high-severity issue affecting confidentiality and availability of the system. The vulnerability has been resolved in the Linux kernel, though specific affected versions or patch details were not provided in the source data.
Potential Impact
The vulnerability allows an out-of-bounds memory access when running kernel code on AMD Zen5 CPUs, potentially leading to a high impact on system confidentiality and availability. There is no indication of integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. However, specific patch versions or updates were not provided in the available data. Users should monitor official Linux kernel advisories and update to the latest kernel versions that include this fix. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-4cvr-6334-4837
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-68195"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a6b72d39c2644c7f8478912
Added to database: 07/30/2026, 15:50:43 UTC
Last enriched: 07/30/2026, 18:09:02 UTC
Last updated: 09/10/2026, 19:24:57 UTC
Views: 11
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