CVE-2024-35952

CVE Details

Release Date:

2024-05-20

Description

In the Linux kernel, the following vulnerability has been resolved:\ndrm/ast: Fix soft lockup\nThere is a while-loop in ast_dp_set_on_off() that could lead to\ninfinite-loop. This is because the register, VGACRI-Dx, checked in\nthis API is a scratch register actually controlled by a MCU, named\nDPMCU, in BMC.\nThese scratch registers are protected by scu-lock. If suc-lock is not\noff, DPMCU can not update these registers and then host will have soft\nlockup due to never updated status.\nDPMCU is used to control DP and relative registers to handshake with\nhost's VGA driver. Even the most time-consuming task, DP's link\ntraining, is less than 100ms. 200ms should be enough.

See more information about CVE-2024-35952 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel)	ELSA-2024-5101	2024-08-08
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14