PT-2026-36451 · Linux · Linux Kernel

Published 2026-03-29 · Updated 2026-05-02 · CVE-2026-43034

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 bnxt hwrm func backing store qcaps v2() function where resp->type from a firmware response is stored in ctxm->type. This value is subsequently used to index fixed backing-store metadata arrays, including ctx arr[] and bnxt bstore to trace[]. To resolve this, ctxm->type should be set from the current loop variable rather than relying on resp->type.

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

Weakness Enumeration

CWE-823

Related Identifiers

BDU:2026-06504

CVE-2026-43034

Affected Products

Linux Kernel

References · 16

• https://git.kernel.org/stable/c/29732b68a6816a815d58e9ab229844c23617e1e0 · Patch
• https://cve.org/CVERecord?id=CVE-2026-43034 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43034 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43034 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43034 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-43034 · Vendor Advisory
• https://git.kernel.org/stable/c/c8d53b70166d1dc463ef42adb7293e1a770822c7 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43034 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06504 · Security Note
• https://ubuntu.com/security/CVE-2026-43034 · Vendor Advisory
• https://git.kernel.org/stable/c/4ee937107d52f9e5c350e4b5e629760e328b3d9f · Patch
• https://access.redhat.com/security/cve/cve-2026-43034 · Note
• https://docs.bell-sw.com/security/cves/CVE-2026-43034 · Note
• https://feedly.com/cve/CVE-2026-43034 · Note
• https://lore.kernel.org/linux-cve-announce/2026050102-CVE-2026-43034-f539@gregkh · Note