PT-2026-34432 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-05-22 · CVE-2026-31527

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A Use-After-Free (UAF) issue exists in the driver core platform. This occurs when a driver is probed through the driver attach() function, causing the bus match callback to be called without the device lock held. Consequently, the driver override field is accessed without proper locking.

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

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2026-31527

ECHO-99C7-3699-2554

OESA-2026-2415

OESA-2026-2416

Affected Products

Linux Kernel

References · 50

• https://git.kernel.org/stable/c/9a6086d2a828dd2ff74cf9abcae456670febd71f · Patch
• https://osv.dev/vulnerability/OESA-2026-2415 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-68185 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-40324 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-46333 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-31527 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31447 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31527 · Vendor Advisory
• https://git.kernel.org/stable/c/edee7ee5a14c3b33f6d54641f5af5c5e9180992d · Patch
• https://ubuntu.com/security/CVE-2026-31527 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2416 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43047 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43488 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31527 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31527 · Security Note