cve/2024/CVE-2024-49918.md

CVE-2024-49918

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 thedcn32_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