CVE-2023-53400

MEDIUM 5.5

ALSA: hda: Fix Oops by 9.1 surround channel names

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	linux
Product	linux
Ecosystems	Linux Kernel
Industries	Technology
Published	Sep 18, 2025
Last Updated	May 11, 2026

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Affected Versions

Linux / Linux

247d85ee068610c50d66ee0cd3130e02c69f5f2e < 082dcd51667b29097500c824c37f24da997a6a8a 247d85ee068610c50d66ee0cd3130e02c69f5f2e < b5694aae4c2d9a288bafce7d38f122769e0428e6 247d85ee068610c50d66ee0cd3130e02c69f5f2e < 4ef155ddf9578bf035964d58739fdcd7dd44b4a4 247d85ee068610c50d66ee0cd3130e02c69f5f2e < 546b1f5f45a355ae0d3a8041cdaca597dfcac825 247d85ee068610c50d66ee0cd3130e02c69f5f2e < e8c7d7c43d5edd20e518fe1dfb2371d1fe6e8bb8 247d85ee068610c50d66ee0cd3130e02c69f5f2e < dc8c569d59f17b17d7bca4f68c36bd571659921e 247d85ee068610c50d66ee0cd3130e02c69f5f2e < fcf637461019e9a5a0c12fc5c42a9db1779b0634 247d85ee068610c50d66ee0cd3130e02c69f5f2e < 3b44ec8c5c44790a82f07e90db45643c762878c6

Linux / Linux

3.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗