CVE-2024-49909 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func

This commit adds a null check for the set_output_gamma function pointer in the dcn32_set_output_transfer_func function. Previously set_output_gamma was being checked for null but then it was being dereferenced without any null check. This could lead to a null pointer dereference if set_output_gamma is null.

To fix this we now ensure that set_output_gamma is not null before dereferencing it. We do this by adding a null check for set_output_gamma before the call to set_output_gamma.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://git.kernel.org/stable/c/496486950c3d2aebf46a3be300296ac091da7a2d https://git.kernel.org/stable/c/5298270bdabe97be5b8236e544c9e936415fe1f2 https://git.kernel.org/stable/c/28574b08c70e56d34d6f6379326a860b96749051

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5