CVE-2025-21978
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2025-04-01
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Weakness Classification (1)
Affected Software (13)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | a0ab5abced550ddeefddb06055ed60779a54eb79 < c40cd24bfb9bfbb315c118ca14ebe6cf52e2dd1e |
| Linux | Linux | a0ab5abced550ddeefddb06055ed60779a54eb79 < ad27b4a51495490b815580d9b935e8eee14d1a9c |
| Linux | Linux | a0ab5abced550ddeefddb06055ed60779a54eb79 < 24f1bbfb2be77dad82489c1468bbb14312aab129 |
| Linux | Linux | a0ab5abced550ddeefddb06055ed60779a54eb79 < 158242b56bf465a73e1edeac0fe828a8acad4499 |
| Linux | Linux | a0ab5abced550ddeefddb06055ed60779a54eb79 < aed709355fd05ef747e1af24a1d5d78cd7feb81e |
| Linux | Linux | 6.0 |
| linux | linux_kernel | 6.0 – 6.1.132 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |