Answer in brief
CVE-2024-49918 records a Unknown severity vulnerability in drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <180280f3c4621d699d903773bb84bf7f0bc6a891 || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <4f47292f488fa7041284dca1f1244116c18721f1 || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <96d4c2ee18d732a248d053aae8c4a27cb1d68d1c || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <ac2140449184a26eac99585b7f69814bd3ba8f2d | 180280f3c4621d699d903773bb84bf7f0bc6a891, 4f47292f488fa7041284dca1f1244116c18721f1, 96d4c2ee18d732a248d053aae8c4a27cb1d68d1c, ac2140449184a26eac99585b7f69814bd3ba8f2d |
| Linux/Linuxgeneric | 4.15 | Not reported |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 21, 2026
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_layer This commit addresses a potential null pointer dereference issue in the `dcn32_acquire_idle_pipe_for_head_pipe_in_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/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)
Quoted source text, attributed separately from HOL analysis.