PT-2026-35024 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-26 · CVE-2026-31672

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 An issue exists in the rt2x00usb driver where device managed resources are tied to the parent USB device instead of the USB interface. This can lead to memory leaks when drivers are unbound without the physical disconnection of devices, such as during configuration changes or probe deferral. The fix ensures the USB anchor lifetime is released upon driver unbind.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2026-31672

ECHO-9E74-1F6F-75AB

Affected Products

Linux Kernel

References · 20

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31672 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31672 · Security Note
• https://git.kernel.org/stable/c/64a457f6afbf15f984d95201a9a1e71eed3f9dd1 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31672 · Vendor Advisory
• https://git.kernel.org/stable/c/e360d15fcb1e819eef49e3d4434d8050542eed16 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31672 · Security Note
• https://git.kernel.org/stable/c/c99f198841b41735796e2ddfcd573783fb552eb9 · Patch
• https://git.kernel.org/stable/c/65518a6965d527c53013947031f26754f6a4f6af · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31672 · Vendor Advisory
• https://git.kernel.org/stable/c/1de5c76bf40e9cdeebf54662f63011fb10fa452f · Patch
• https://ubuntu.com/security/CVE-2026-31672 · Vendor Advisory
• https://git.kernel.org/stable/c/15b233e33b35b927bd8d0044c15325564ea1ba24 · Patch
• https://git.kernel.org/stable/c/25369b22223d1c56e42a0cd4ac9137349d5a898e · Patch
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-31672 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31672 · Vendor Advisory