CVE-2026-46146: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: from 5.4.297, before 5.5 (fixed in 5.5); from 5.10.241, before 5.10.258 (fixed in 5.10.258); from 5.15.190, before 5.15.209 (fixed in 5.15.209); from 6.1.149, before 6.1.175 (fixed in 6.1.175); from 6.6.103, before 6.6.140 (fixed in 6.6.140); from 6.12.43, before 6.12.88 (fixed in 6.12.88); …

Published 2026-05-28. Last modified 2026-06-17.