PT-2026-36389 · Linux · Linux Kernel

Published 2026-05-01 · Updated 2026-05-22 · CVE-2026-31754

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A state inconsistency occurs in the cdns3 USB driver when cdns3 gadget start() fails. In this scenario, the Dual-Role Device (DRD) hardware remains in gadget mode while the software state is marked as INACTIVE. If a user attempts to switch to host mode via the sysfs endpoint '/sys/class/usb role/13180000.usb-role-switch/role', the cdns role stop() function skips the necessary cleanup because the state is still INACTIVE. This violation of the DRD controller design specification can lead to a synchronous external abort in the xhci gen setup() function during host controller setup.

Recommendations Apply the fix that implements a call to the cdns drd gadget off() function in the error path to ensure the DRD gadget state is properly cleaned up.

Fix

Related Identifiers

CVE-2026-31754

ECHO-8321-D172-CE83

OESA-2026-2416

Affected Products

Linux Kernel

References · 46

• https://nvd.nist.gov/vuln/detail/CVE-2025-68185 · Security Note
• https://git.kernel.org/stable/c/b490f0e477d26d29ed51e5dc47e3b9bd31bcb49f · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-40324 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-46333 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31447 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2416 · Vendor Advisory
• https://git.kernel.org/stable/c/5a85599ca4d2584d89dc69f4fc49303b75a42338 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-43047 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43488 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-31754 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43261 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31755 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31527 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-68820 · Security Note
• https://git.kernel.org/stable/c/c7e475ae3a5593c5db21b3b7dca4ba8bdac9b47f · Patch