CVE-2026-93122

kernel: usb: gadget: uac: validate rate list length before storing

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 30, 2026

Description

A flaw was found in the Linux kernel's USB Audio Class (UAC) gadget driver. This vulnerability occurs when processing a list of sampling rates, where the driver fails to properly validate the length of the input list. An attacker could provide an overly long list, causing the system to write data beyond its intended memory area. This out-of-bounds write can lead to a system crash, resulting in a denial of service.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')