PT-2026-36362 · Linux · Linux Kernel

CVE-2026-31727 · Published 2026-05-01 · Updated 2026-07-21

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 NULL pointer dereference occurs in the eth get drvinfo() function. This happens when a gadget device is reparented to /sys/devices/virtual during an unbind process, which clears the gadget pointer. If a userspace tool queries the surviving interface during this detached window, the system attempts to access the NULL pointer.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-31727

SUSE-SU-2026:3130-1

SUSE-SU-2026:3166-1

Affected Products

Linux Kernel

References · 1075

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31727.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2026-31727 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31727 · Vendor Advisory
• https://git.kernel.org/stable/c/0326429e8ba99892e1d1e115dc8e88e1a3b64e24 · Patch
• https://osv.dev/vulnerability/CVE-2026-31727 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31727 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:3166-1 · Vendor Advisory
• https://git.kernel.org/stable/c/e002e92e88e12457373ed096b18716d97e7bbb20 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:3130-1 · Vendor Advisory
• https://git.kernel.org/stable/c/a36e5e800b9c93e3e1ffa42f34d38b36775dbcee · Patch
• https://ubuntu.com/security/CVE-2026-31727 · Vendor Advisory
• https://git.kernel.org/stable/c/7de4d46be40738c7e48e64b5cc0a34aa1e047b0a · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31727 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31727 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31727 · Security Note