Linux · Linux Kernel · CVE-2021-47144
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
A refcount leak has been resolved in the Linux kernel, specifically in the drm/amd/amdgpu module. The issue occurs because the gem object `rfb->base.obj[0]` is retrieved according to `num planes` in `amdgpufb create`, but not released according to `num planes`. To fix this, the object is released in `amdgpu fbdev destroy` according to `num planes`.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.