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CVE-2024-49917

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
21/10/2024
Last modified:
03/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amd/display: Add NULL check for clk_mgr and clk_mgr-&gt;funcs in dcn30_init_hw<br /> <br /> This commit addresses a potential null pointer dereference issue in the<br /> `dcn30_init_hw` function. The issue could occur when `dc-&gt;clk_mgr` or<br /> `dc-&gt;clk_mgr-&gt;funcs` is null.<br /> <br /> The fix adds a check to ensure `dc-&gt;clk_mgr` and `dc-&gt;clk_mgr-&gt;funcs` is<br /> not null before accessing its functions. This prevents a potential null<br /> pointer dereference.<br /> <br /> Reported by smatch:<br /> drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:789 dcn30_init_hw() error: we previously assumed &amp;#39;dc-&gt;clk_mgr&amp;#39; could be null (see line 628)

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