PT-2026-39134 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-21 · CVE-2026-43473

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 crash occurs in the mpi3mr driver during resource cleanup. This happens when the creation of reply or request queues fails, causing the driver to free the memory and subsequently attempt to perform a memory set operation on that freed memory because NULL pointer checks were missing for the reply and request queues.

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

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-43473

Affected Products

Linux Kernel

References · 21

• https://git.kernel.org/stable/c/e978a36f332ede78eb4de037b517db16265d420d · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43473 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-43473 · Vendor Advisory
• https://git.kernel.org/stable/c/fa96392ebebc8fade2b878acb14cce0f71016503 · Patch
• https://git.kernel.org/stable/c/7df0296ad4e9253d12c6dbe7f120044dddc95600 · Patch
• https://ubuntu.com/security/CVE-2026-43473 · Vendor Advisory
• https://git.kernel.org/stable/c/78d3f201f8b609928eade53cf03a52df5415aaf7 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43473 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43473 · Security Note
• https://git.kernel.org/stable/c/220d7ca70611a73d50ef8e9edac630ed1ececb7c · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-43473 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43473 · Vendor Advisory
• https://git.kernel.org/stable/c/7da755e0d02e9ca035065127e108d1fed8950dc8 · Patch
• https://t.me/cveNotify/162851 · Telegram Post
• https://twitter.com/hetmehtaa/status/2055151398283837677 · Twitter Post