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CVE-2025-39757

ALSA: usb-audio: Validate UAC3 cluster segment descriptors

EPSS 0.2%
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 cluster segment descriptors UAC3 class segment descriptors need to be verified whether their sizes match with the declared lengths and whether they fit with the allocated buffer sizes, too. Otherwise malicious firmware may lead to the unexpected OOB accesses.
Affected products
Linux · Linux

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References
https://cert-portal.siemens.com/productcert/html/ssa-032379.htmlhttps://git.kernel.org/stable/c/1034719fdefd26caeec0a44a868bb5a412c2c1a5https://git.kernel.org/stable/c/275e37532e8ebe25e8a4069b2d9f955bfd202a46https://git.kernel.org/stable/c/47ab3d820cb0a502bd0074f83bb3cf7ab5d79902https://git.kernel.org/stable/c/786571b10b1ae6d90e1242848ce78ee7e1d493c4https://git.kernel.org/stable/c/799c06ad4c9c790c265e8b6b94947213f1fb389chttps://git.kernel.org/stable/c/7ef3fd250f84494fb2f7871f357808edaa1fc6cehttps://git.kernel.org/stable/c/ae17b3b5e753efc239421d186cd1ff06e5ac296ehttps://git.kernel.org/stable/c/dfdcbcde5c20df878178245d4449feada7d5b201https://git.kernel.org/stable/c/ecfd41166b72b67d3bdeb88d224ff445f6163869https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html