CVE-2024-26914

HIGH

Linux Kernel < 6.7.6 - Out-of-Bounds Write in AMD Display MPC Combine Array

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix incorrect mpc_combine array size [why] MAX_SURFACES is per stream, while MAX_PLANES is per asic. The mpc_combine is an array that records all the planes per asic. Therefore MAX_PLANES should be used as the array size. Using MAX_SURFACES causes array overflow when there are more than 3 planes. [how] Use the MAX_PLANES for the mpc_combine array size.

References (2)

Core 2

Core References

Patch

https://git.kernel.org/stable/c/0bd8ef618a42d7e6ea3f701065264e15678025e3

Patch

https://git.kernel.org/stable/c/39079fe8e660851abbafa90cd55cbf029210661f

Scores

CVSS v3 7.8

EPSS 0.0022

EPSS Percentile 11.9%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-129

Status published

Products (9)

linux/Kernel 4.15.0 - 6.7.6linux

Linux/Linux < 4.15

Linux/Linux 4.15

Linux/Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - 0bd8ef618a42d7e6ea3f701065264e15678025e3

Linux/Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - 39079fe8e660851abbafa90cd55cbf029210661f

Linux/Linux 6.7.6 - 6.7.*

Linux/Linux 6.8

linux/linux_kernel 6.8 rc1 (2 CPE variants)

linux/linux_kernel 6.7 - 6.7.6

Published Apr 17, 2024

Tracked Since Feb 18, 2026