CVE-2026-31758 HIGH

CVE-2026-31758: usb: usbtmc: Flush anchored URBs in usbtmc_release

Vendor Linux
Product Linux
Published May 1, 2026
Last update May 11, 2026

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

In the Linux kernel, the following vulnerability has been resolved: usb: usbtmc: Flush anchored URBs in usbtmc_release When calling usbtmc_release, pending anchored URBs must be flushed or killed to prevent use-after-free errors (e.g. in the HCD giveback path). Call usbtmc_draw_down() to allow anchored URBs to be completed.

Key dates

02Disclosure timeline

May 1, 2026 CVE published
May 11, 2026 Record updated