CVE-2023-53400

ALSA: hda: Fix Oops by 9.1 surround channel names

State: Published
Severity: 5.5 Medium
Published: Sep 18, 2025
Updated: May 11, 2026
Reserved: Sep 17, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	247d85ee068610c50d66ee0cd3130e02c69f5f2e to before 082dcd51667b29097500c824c37f24da997a6a8aAffected 247d85ee068610c50d66ee0cd3130e02c69f5f2e to before b5694aae4c2d9a288bafce7d38f122769e0428e6Affected 247d85ee068610c50d66ee0cd3130e02c69f5f2e to before 4ef155ddf9578bf035964d58739fdcd7dd44b4a4Affected 247d85ee068610c50d66ee0cd3130e02c69f5f2e to before 546b1f5f45a355ae0d3a8041cdaca597dfcac825Affected 247d85ee068610c50d66ee0cd3130e02c69f5f2e to before e8c7d7c43d5edd20e518fe1dfb2371d1fe6e8bb8Affected 247d85ee068610c50d66ee0cd3130e02c69f5f2e to before dc8c569d59f17b17d7bca4f68c36bd571659921eAffected 247d85ee068610c50d66ee0cd3130e02c69f5f2e to before fcf637461019e9a5a0c12fc5c42a9db1779b0634Affected 247d85ee068610c50d66ee0cd3130e02c69f5f2e to before 3b44ec8c5c44790a82f07e90db45643c762878c6Affected
LinuxLinux	3.9Affected before 3.9Not affected 4.14.316 through 4.14.Not affected 4.19.284 through 4.19.Not affected 5.4.244 through 5.4.Not affected 5.10.181 through 5.10.Not affected 5.15.113 through 5.15.Not affected 6.1.30 through 6.1.Not affected 6.3.4 through 6.3.*Not affected 6.4 and laterNot affected

Product

Versions

LinuxLinux

247d85ee068610c50d66ee0cd3130e02c69f5f2e to before 082dcd51667b29097500c824c37f24da997a6a8aAffected
247d85ee068610c50d66ee0cd3130e02c69f5f2e to before b5694aae4c2d9a288bafce7d38f122769e0428e6Affected
247d85ee068610c50d66ee0cd3130e02c69f5f2e to before 4ef155ddf9578bf035964d58739fdcd7dd44b4a4Affected
247d85ee068610c50d66ee0cd3130e02c69f5f2e to before 546b1f5f45a355ae0d3a8041cdaca597dfcac825Affected
247d85ee068610c50d66ee0cd3130e02c69f5f2e to before e8c7d7c43d5edd20e518fe1dfb2371d1fe6e8bb8Affected
247d85ee068610c50d66ee0cd3130e02c69f5f2e to before dc8c569d59f17b17d7bca4f68c36bd571659921eAffected
247d85ee068610c50d66ee0cd3130e02c69f5f2e to before fcf637461019e9a5a0c12fc5c42a9db1779b0634Affected
247d85ee068610c50d66ee0cd3130e02c69f5f2e to before 3b44ec8c5c44790a82f07e90db45643c762878c6Affected

LinuxLinux

3.9Affected
before 3.9Not affected
4.14.316 through 4.14.*Not affected
4.19.284 through 4.19.*Not affected
5.4.244 through 5.4.*Not affected
5.10.181 through 5.10.*Not affected
5.15.113 through 5.15.*Not affected
6.1.30 through 6.1.*Not affected
6.3.4 through 6.3.*Not affected
6.4 and laterNot affected

References

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