CVE-2024-49905

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2) This commit adds a null check for the 'afb' variable in the amdgpu_dm_plane_handle_cursor_update function. Previously, 'afb' was assumed to be null, but was used later in the code without a null check. This could potentially lead to a null pointer dereference. Changes since v1: - Moved the null check for 'afb' to the line where 'afb' is used. (Alex) Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed 'afb' could be null (see line 1252)

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

V3 Legend

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/75839e2365b666ff4e1b9047e442cab138eac4f6	Patch
https://git.kernel.org/stable/c/9132882eaae4d21d2fc5843b3308379a481ebdf0	Patch
https://git.kernel.org/stable/c/bd0e24e5e608ccb9fdda300bb974496d6d8cf57d	Patch
https://git.kernel.org/stable/c/cd9e9e0852d501f169aa3bb34e4b413d2eb48c37	Patch
https://git.kernel.org/stable/c/e4e26cbe34d7c1c1db5fb7b3101573c29866439f	Patch

Configurations

Configuration 1 (hide)

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

History

24 Oct 2024, 03:43

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/75839e2365b666ff4e1b9047e442cab138eac4f6 -~~	() https://git.kernel.org/stable/c/75839e2365b666ff4e1b9047e442cab138eac4f6 - Patch
References	~~() https://git.kernel.org/stable/c/9132882eaae4d21d2fc5843b3308379a481ebdf0 -~~	() https://git.kernel.org/stable/c/9132882eaae4d21d2fc5843b3308379a481ebdf0 - Patch
References	~~() https://git.kernel.org/stable/c/bd0e24e5e608ccb9fdda300bb974496d6d8cf57d -~~	() https://git.kernel.org/stable/c/bd0e24e5e608ccb9fdda300bb974496d6d8cf57d - Patch
References	~~() https://git.kernel.org/stable/c/cd9e9e0852d501f169aa3bb34e4b413d2eb48c37 -~~	() https://git.kernel.org/stable/c/cd9e9e0852d501f169aa3bb34e4b413d2eb48c37 - Patch
References	~~() https://git.kernel.org/stable/c/e4e26cbe34d7c1c1db5fb7b3101573c29866439f -~~	() https://git.kernel.org/stable/c/e4e26cbe34d7c1c1db5fb7b3101573c29866439f - Patch
First Time		Linux linux Kernel Linux
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CWE		CWE-476
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5

23 Oct 2024, 15:13

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Agregar comprobación NULL para 'afb' en amdgpu_dm_plane_handle_cursor_update (v2) Esta confirmación agrega una comprobación NULL para la variable 'afb' en la función amdgpu_dm_plane_handle_cursor_update. Anteriormente, se suponía que 'afb' era nulo, pero se usó más adelante en el código sin una comprobación NULL. Esto podría conducir potencialmente a una desreferencia de puntero nulo. Cambios desde v1: - Se movió la comprobación NULL para 'afb' a la línea donde se usa 'afb'. (Alex) Corrige lo siguiente: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 Error amdgpu_dm_plane_handle_cursor_update(): anteriormente asumimos que 'afb' podía ser nulo (ver línea 1252)

21 Oct 2024, 18:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-10-21 18:15

Updated : 2024-10-24 03:43

NVD link : CVE-2024-49905

Mitre link : CVE-2024-49905

CVE.ORG link : CVE-2024-49905

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

5.5 /10