CVE-2026-93056
kernel: usb: gadget: f_uac1_legacy: remove broken string configfs attributes
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · September 30, 2026
Description
A flaw was found in the Linux kernel. Specifically, within the USB gadget audio class 1 (UAC1) legacy driver, a programming error related to handling string attributes could lead to a critical system failure. A local attacker could trigger this vulnerability by attempting to write to certain configuration settings, causing the system to crash and resulting in a denial of service.
Statement
This Moderate flaw in the Linux kernel's USB gadget audio class 1 (UAC1) legacy function does not affect Red Hat supported products. The vulnerable code related to broken string configfs attributes is not present in Red Hat Enterprise Linux, OpenShift Container Platform, or Red Hat In-Vehicle OS.
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-476 · NULL Pointer Dereference