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CVE-2025-21978 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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Hyperlink Resource
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

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-21978
NVD Published Date:
04/01/2025
NVD Last Modified:
04/01/2025
Source:
kernel.org