PT-2026-36359 · Linux · Linux Kernel

Published 2026-05-01 · Updated 2026-05-07 · CVE-2026-31724

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 eem 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 is not properly reparented during bind and unbind cycles.

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

Related Identifiers

CVE-2026-31724

ECHO-E37E-1B12-4526

Affected Products

Linux Kernel

References · 14

• https://git.kernel.org/stable/c/d9270c9a8118c1535409db926ac1e2545dc97b81 · Patch
• https://cve.org/CVERecord?id=CVE-2026-31724 · Security Note
• https://git.kernel.org/stable/c/a6b8bce01a30a8c05c034bbc36c34845d65d644f · Patch
• https://ubuntu.com/security/CVE-2026-31724 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31724 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31724 · Vendor Advisory
• https://git.kernel.org/stable/c/4ccdccff8febc5456aff684627f9a4c5c83b9346 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31724 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31724 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31724 · Security Note
• https://git.kernel.org/stable/c/14730506b9e2a09d10c963a57a72ed528482fc15 · Patch
• https://t.me/cveNotify/162580 · Telegram Post
• https://docs.bell-sw.com/security/cves/CVE-2026-31724 · Note
• https://git.kernel.org/linus/d9270c9a8118c1535409db926ac1e2545dc97b81 · Note