CVE-2025-21978
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/hyperv: Fix address space leak when Hyper-V DRM device is removed
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| a0ab5abced550ddeefddb06055ed60779a54eb79 | affected | git | c40cd24bfb9bfbb315c118ca14ebe6cf52e2dd1e | Unavailable | None listed |
| a0ab5abced550ddeefddb06055ed60779a54eb79 | affected | git | ad27b4a51495490b815580d9b935e8eee14d1a9c | Unavailable | None listed |
| a0ab5abced550ddeefddb06055ed60779a54eb79 | affected | git | 24f1bbfb2be77dad82489c1468bbb14312aab129 | Unavailable | None listed |
| a0ab5abced550ddeefddb06055ed60779a54eb79 | affected | git | 158242b56bf465a73e1edeac0fe828a8acad4499 | Unavailable | None listed |
| a0ab5abced550ddeefddb06055ed60779a54eb79 | affected | git | aed709355fd05ef747e1af24a1d5d78cd7feb81e | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.0 | Unavailable | None listed |
| 6.1.132 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.84 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.20 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13.8 | unaffected | semver | Unavailable | 6.13.* | None listed |
| 6.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |