PT-2026-38938 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-15 · CVE-2026-43296

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/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 octeontx2-af component where the NIX SQ manager sticky mode can cause stalls when multiple SQs share an SMQ and transmit concurrently. Furthermore, the PSE may deadlock during transitions between sticky and non-sticky transmissions, and credit drops may occur when specific condition clocks are gated. These issues are addressed via the NIX AF SQM DBG CTL STATUS register to ensure forward progress under load, although this disables sticky optimizations.

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

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

CVE-2026-43296

Affected Products

Linux Kernel

References · 21

• https://cve.org/CVERecord?id=CVE-2026-43296 · Security Note
• https://git.kernel.org/stable/c/8052d0587fb14b85539c3a14a226586c0c3d6b4c · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43296 · Vendor Advisory
• https://git.kernel.org/stable/c/36cc5a5e0178d5fb79e04173b8aa623b0108819a · Patch
• https://git.kernel.org/stable/c/9a3fd301329474f449e75f86d8a4f6b9c603fd6c · Patch
• https://git.kernel.org/stable/c/d9b549b6951ba178ec14339a031cae65f4e43fe1 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43296 · Vendor Advisory
• https://git.kernel.org/stable/c/70e9a5760abfb6338d63994d4de6b0778ec795d6 · Patch
• https://git.kernel.org/stable/c/cec2ceb35ce7bc874c43812bb39200d6cf691b87 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-43296 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43296 · Security Note
• https://git.kernel.org/stable/c/b7eba260a34e854e2487b8363c11976f082df00d · Patch
• https://git.kernel.org/stable/c/d0b3c8a80336029d9356f429151eb27922d80a3c · Patch
• https://ubuntu.com/security/CVE-2026-43296 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43296 · Vendor Advisory