CVE-2026-46018
kernel: ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 27, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's Advanced Linux Sound Architecture (ALSA) USB audio driver. A malicious Universal Serial Bus (USB) audio device could send a malformed Universal Audio Class 2 (UAC2) RANGE response. This could cause the system to repeatedly print error messages and potentially lead to a denial of service (DoS) by holding a mutex during the device probing process.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-606 · Unchecked Input for Loop Condition