Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-49919

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
21/10/2024
Last modified:
21/02/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer<br /> <br /> This commit addresses a potential null pointer dereference issue in the<br /> `dcn201_acquire_free_pipe_for_layer` function. The issue could occur<br /> when `head_pipe` is null.<br /> <br /> The fix adds a check to ensure `head_pipe` is not null before asserting<br /> it. If `head_pipe` is null, the function returns NULL to prevent a<br /> potential null pointer dereference.<br /> <br /> Reported by smatch:<br /> drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn201/dcn201_resource.c:1016 dcn201_acquire_free_pipe_for_layer() error: we previously assumed &amp;#39;head_pipe&amp;#39; could be null (see line 1010)

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.10.14 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.11 (including) 6.11.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools