CVE-2024-49918
MEDIUM EPSS 14.3%
Published Oct 21, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago
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_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)
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
14.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-476 NULL Pointer Dereference Memory Safety
Affected Products 2
References 3
- git.kernel.org https://git.kernel.org/stable/c/4f47292f488fa7041284dca1f1244116c18721f1
- git.kernel.org https://git.kernel.org/stable/c/96d4c2ee18d732a248d053aae8c4a27cb1d68d1c
- git.kernel.org https://git.kernel.org/stable/c/ac2140449184a26eac99585b7f69814bd3ba8f2d
Remediation
- git.kernel.org https://git.kernel.org/stable/c/4f47292f488fa7041284dca1f1244116c18721f1
- git.kernel.org https://git.kernel.org/stable/c/96d4c2ee18d732a248d053aae8c4a27cb1d68d1c
- git.kernel.org https://git.kernel.org/stable/c/ac2140449184a26eac99585b7f69814bd3ba8f2d