cve/2024/CVE-2024-49919.md

### [CVE-2024-49919](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49919)
![](https://img.shields.io/static/v1?label=Product&message=Linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.15%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=blue)

### Description

In the Linux kernel, the following vulnerability has been resolved:drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layerThis commit addresses a potential null pointer dereference issue in the`dcn201_acquire_free_pipe_for_layer` function. The issue could occurwhen `head_pipe` is null.The fix adds a check to ensure `head_pipe` is not null before assertingit. If `head_pipe` is null, the function returns NULL to prevent apotential null pointer dereference.Reported by smatch:drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn201/dcn201_resource.c:1016 dcn201_acquire_free_pipe_for_layer() error: we previously assumed 'head_pipe' could be null (see line 1010)

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds