CVE-2023-53400

MEDIUM

Linux kernel - Buffer Overflow

Title source: llm

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)

[Patch] https://git.kernel.org/stable/c/082dcd51667b29097500c824c37f24da997a6a8a

[Patch] https://git.kernel.org/stable/c/3b44ec8c5c44790a82f07e90db45643c762878c6

[Patch] https://git.kernel.org/stable/c/4ef155ddf9578bf035964d58739fdcd7dd44b4a4

[Patch] https://git.kernel.org/stable/c/546b1f5f45a355ae0d3a8041cdaca597dfcac825

[Patch] https://git.kernel.org/stable/c/b5694aae4c2d9a288bafce7d38f122769e0428e6

[Patch] https://git.kernel.org/stable/c/dc8c569d59f17b17d7bca4f68c36bd571659921e

[Patch] https://git.kernel.org/stable/c/e8c7d7c43d5edd20e518fe1dfb2371d1fe6e8bb8

[Patch] https://git.kernel.org/stable/c/fcf637461019e9a5a0c12fc5c42a9db1779b0634

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 2.3%

Attack Vector LOCAL

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

Classification

Status published

Affected Products (3)

linux/linux_kernel < 4.14.316

linux/linux_kernel

linux/linux_kernel

Timeline

Published Sep 18, 2025

Tracked Since Feb 18, 2026