Executive Summary

Informations
Name CVE-2025-21978 First vendor Publication 2025-04-01
Vendor Cve Last vendor Modification 2025-04-01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

drm/hyperv: Fix address space leak when Hyper-V DRM device is removed

When a Hyper-V DRM device is probed, the driver allocates MMIO space for the vram, and maps it cacheable. If the device removed, or in the error path for device probing, the MMIO space is released but no unmap is done. Consequently the kernel address space for the mapping is leaked.

Fix this by adding iounmap() calls in the device removal path, and in the error path during device probing.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21978

Sources (Detail)

https://git.kernel.org/stable/c/158242b56bf465a73e1edeac0fe828a8acad4499
https://git.kernel.org/stable/c/24f1bbfb2be77dad82489c1468bbb14312aab129
https://git.kernel.org/stable/c/ad27b4a51495490b815580d9b935e8eee14d1a9c
https://git.kernel.org/stable/c/aed709355fd05ef747e1af24a1d5d78cd7feb81e
https://git.kernel.org/stable/c/c40cd24bfb9bfbb315c118ca14ebe6cf52e2dd1e
Source Url

Alert History

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0
Date Informations
2025-05-27 02:53:55
  • First insertion