Answer in brief
CVE-2024-49919 records a Medium severity (CVSS 5.5) vulnerability in drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <d11ae22a8beee9771d933c1e5c95e217edcdbd38 || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <16ce8fd94da8599bb6f0496895d392a69aead1c0 || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <390d757621f5f35d11a63ed7d9d3262ead240064 || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <8a1b1655a490a492a5a6987254c935ecce4eb9de || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <f22f4754aaa47d8c59f166ba3042182859e5dff7 | d11ae22a8beee9771d933c1e5c95e217edcdbd38, 16ce8fd94da8599bb6f0496895d392a69aead1c0, 390d757621f5f35d11a63ed7d9d3262ead240064, 8a1b1655a490a492a5a6987254c935ecce4eb9de, f22f4754aaa47d8c59f166ba3042182859e5dff7 |
| Linux/Linuxgeneric | 4.15 | Not reported |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 30, 2026
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_layer This commit addresses a potential null pointer dereference issue in the `dcn201_acquire_free_pipe_for_layer` function. The issue could occur when `head_pipe` is null. The fix adds a check to ensure `head_pipe` is not null before asserting it. If `head_pipe` is null, the function returns NULL to prevent a potential 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)
Quoted source text, attributed separately from HOL analysis.