Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-05-01T00:00:00 kernel: usb: dwc2: gadget: Fix spin_lock/unlock mismatch in dwc2_hsotg_udc_stop() 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CWE-832

A flaw was found in the Linux kernel's dwc2 USB gadget driver. A local user could trigger an incorrect locking sequence within the dwc2_hsotg_udc_stop() function. This issue, a spin_lock/unlock mismatch, can lead to a system deadlock, causing a Denial of Service (DoS) for the affected system.

DWC2 gadget stop path had a spinlock mismatch that could corrupt locking or crash. Red Hat advises gadget platforms using dwc2 to consume corrected kernels. Red Hat Enterprise Linux 10 Affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-31756 https://nvd.nist.gov/vuln/detail/CVE-2026-31756 https://lore.kernel.org/linux-cve-announce/2026050144-CVE-2026-31756-87ec@gregkh/T