Linux · Linux Kernel · CVE-2021-47142
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
A use-after-free vulnerability has been resolved in the Linux kernel, specifically in the drm/amdgpu component. The issue occurs when the `ttm->sg` variable is not set to NULL, leading to a general protection fault. The vulnerability is related to the `sg free table` function and the `amdgpu ttm backend unbind` and `amdgpu ttm backend destroy` functions. The estimated number of potentially affected devices worldwide is not available. There is no information about real-world incidents where this issue was exploited.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.