ALSA: hda: Fix Oops by 9.1 surround channel names
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/082dcd51667b29097500c824c37f24da997a6a8a
- https://git.kernel.org/stable/c/3b44ec8c5c44790a82f07e90db45643c762878c6
- https://git.kernel.org/stable/c/4ef155ddf9578bf035964d58739fdcd7dd44b4a4
- https://git.kernel.org/stable/c/546b1f5f45a355ae0d3a8041cdaca597dfcac825
- https://git.kernel.org/stable/c/b5694aae4c2d9a288bafce7d38f122769e0428e6
- https://git.kernel.org/stable/c/dc8c569d59f17b17d7bca4f68c36bd571659921e
- https://git.kernel.org/stable/c/e8c7d7c43d5edd20e518fe1dfb2371d1fe6e8bb8
- https://git.kernel.org/stable/c/fcf637461019e9a5a0c12fc5c42a9db1779b0634
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53400.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53400