PT-2026-36360 · Linux · Linux Kernel

Published 2026-05-01 · Updated 2026-05-07 · CVE-2026-31725

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 usb gadget f ecm component where the net device is allocated during function instance creation and registered during the bind phase. When the function unbinds, the parent device is destroyed while the net device survives, leading to dangling sysfs symlinks. This occurs because the net device remains linked to a non-existent directory in the sysfs topology.

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

Related Identifiers

CVE-2026-31725

ECHO-21A7-FE72-9030

Affected Products

Linux Kernel

References · 14

• https://ubuntu.com/security/CVE-2026-31725 · Vendor Advisory
• https://git.kernel.org/stable/c/b2cc4fae67a51f60d81d6af2678696accb07c656 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31725 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31725 · Vendor Advisory
• https://git.kernel.org/stable/c/4e34f3f491fd731809b57ddb5329ec763bd39553 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31725 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-31725 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31725 · Vendor Advisory
• https://git.kernel.org/stable/c/5eaeac22240d965d24c3bd0c54ded64efd8f6ca1 · Patch
• https://git.kernel.org/stable/c/9b1e5589593293c78a2ab8bb118a41e2271a2af8 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31725 · Vendor Advisory
• https://t.me/cveNotify/162581 · Telegram Post
• https://docs.bell-sw.com/security/cves/CVE-2026-31725 · Note
• https://git.kernel.org/linus/b2cc4fae67a51f60d81d6af2678696accb07c656 · Note