CVE-2024-49919

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)

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/16ce8fd94da8599bb6f0496895d392a69aead1c0
https://git.kernel.org/stable/c/390d757621f5f35d11a63ed7d9d3262ead240064	Patch
https://git.kernel.org/stable/c/8a1b1655a490a492a5a6987254c935ecce4eb9de	Patch
https://git.kernel.org/stable/c/f22f4754aaa47d8c59f166ba3042182859e5dff7	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

21 Feb 2025, 14:15

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/16ce8fd94da8599bb6f0496895d392a69aead1c0 -

Information

Published : 2024-10-21 18:15

Updated : 2025-02-21 14:15

NVD link : CVE-2024-49919

Mitre link : CVE-2024-49919

CVE.ORG link : CVE-2024-49919

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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