CVE-2023-52634

MEDIUM

Linux Kernel < 6.7.4 - Denial of Service via DRM AMD Display OTG/FIFO Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix disable_otg_wa logic [Why] When switching to another HDMI mode, we are unnecesarilly disabling/enabling FIFO causing both HPO and DIG registers to be set at the same time when only HPO is supposed to be set. This can lead to a system hang the next time we change refresh rates as there are cases when we don't disable OTG/FIFO but FIFO is enabled when it isn't supposed to be. [How] Removing the enable/disable FIFO entirely.

Scores

CVSS v3 5.5
EPSS 0.0019
EPSS Percentile 9.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (8)
linux/Kernel 6.7.0 - 6.7.4linux
Linux/Linux < 6.7
Linux/Linux 6.7
Linux/Linux 6.7.4 - 6.7.*
Linux/Linux 6.8
Linux/Linux 8774029f76b9806f2f3586bb0502408076767fd5 - 2ce156482a6fef349d2eba98e5070c412d3af662
Linux/Linux 8774029f76b9806f2f3586bb0502408076767fd5 - ce29728ef6485a367934cc100249c66dd3cde5b6
linux/linux_kernel < 6.7.4
Published Apr 02, 2024
Tracked Since Feb 18, 2026