CVE-2023-53400

MEDIUM

Linux Kernel < 4.14.316 - Denial of Service via ALSA HDA 9.1 Surround Channel Name Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix Oops by 9.1 surround channel names get_line_out_pfx() may trigger an Oops by overflowing the static array with more than 8 channels. This was reported for MacBookPro 12,1 with Cirrus codec. As a workaround, extend for the 9.1 channels and also fix the potential Oops by unifying the code paths accessing the same array with the proper size check.

References (8)

Core 8

Scores

CVSS v3 5.5
EPSS 0.0014
EPSS Percentile 3.5%
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 (27)
linux/Kernel 3.9.0 - 4.14.316linux
linux/Kernel 4.15.0 - 4.19.284linux
linux/Kernel 4.20.0 - 5.4.244linux
linux/Kernel 5.11.0 - 5.15.113linux
linux/Kernel 5.16.0 - 6.1.30linux
linux/Kernel 5.5.0 - 5.10.181linux
linux/Kernel 6.2.0 - 6.3.4linux
Linux/Linux < 3.9
Linux/Linux 247d85ee068610c50d66ee0cd3130e02c69f5f2e - 082dcd51667b29097500c824c37f24da997a6a8a
Linux/Linux 247d85ee068610c50d66ee0cd3130e02c69f5f2e - 3b44ec8c5c44790a82f07e90db45643c762878c6
... and 17 more
Published Sep 18, 2025
Tracked Since Feb 18, 2026