CVE-2026-23318 in Linux Kernel

요약 (영어)

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Use correct version for UAC3 header validation The entry of the validators table for UAC3 AC header descriptor is defined with the wrong protocol version UAC_VERSION_2, while it should have been UAC_VERSION_3. This results in the validator never matching for actual UAC3 devices (protocol == UAC_VERSION_3), causing their header descriptors to bypass validation entirely. A malicious USB device presenting a truncated UAC3 header could exploit this to cause out-of-bounds reads when the driver later accesses unvalidated descriptor fields. The bug was introduced in the same commit as the recently fixed UAC3 feature unit sub-type typo, and appears to be from the same copy-paste error when the UAC3 section was created from the UAC2 section.

책임이 있는

Linux

예약하다

2026. 01. 13.

공개

2026. 03. 25.

엔트리

VulDB provides additional information and datapoints for this CVE:

아이디	취약성	CWE	악용	대책	CVE
353033	Linux Kernel UAC3 Section UAC_VERSION_2 정보 공개	125	정의되지 않음	공식 수정	CVE-2026-23318