cve/2024/CVE-2024-49918.md

### [CVE-2024-49918](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49918)
![](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 dcn32_acquire_idle_pipe_for_head_pipe_in_layerThis commit addresses a potential null pointer dereference issue in the`dcn32_acquire_idle_pipe_for_head_pipe_in_layer` function. The issuecould occur when `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/dcn32/dcn32_resource.c:2690 dcn32_acquire_idle_pipe_for_head_pipe_in_layer() error: we previously assumed 'head_pipe' could be null (see line 2681)

### POC

#### Reference
No PoCs from references.

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