PT-2026-44269 · Linux · Linux

Published 2026-05-28 · Updated 2026-05-28 · CVE-2026-46146

Mitre

In the Linux kernel, the following vulnerability has been resolved:

ALSA: usb-audio: Avoid potential endless loop in convert chmap v3()

The convert chmap v3() has a loop with its increment size of cs desc->wLength, but we forgot to validate cs desc->wLength itself, which may lead to potential endless loop by a malformed descriptor.

Add a proper size check to abort the loop for plugging the hole.

Related Identifiers

CVE-2026-46146

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-46146 · Security Note
• https://git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96d · Note
• https://git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3 · Note
• https://git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483d · Note
• https://git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8 · Note
• https://git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cd · Note