PT-2026-39033 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-21 · CVE-2026-43372

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 net: dsa: microchip component where the ksz ptp irq setup() function fails to dispose of a newly created IRQ mapping if the request threaded irq() function fails during the PTP message IRQ setup. This occurs because the error path only frees mappings that were successfully established.

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

Related Identifiers

CVE-2026-43372

Affected Products

Linux Kernel

References · 16

• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43372 · Vendor Advisory
• https://git.kernel.org/stable/c/3704ac6a0d9a78f66a187515a8ca3faedaf01cc5 · Patch
• https://git.kernel.org/stable/c/6c58a9fdb0d0e1011aa02455d26d6ebea251979b · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-43372 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43372 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-43372 · Vendor Advisory
• https://git.kernel.org/stable/c/c2d1d41e0e8ec447d40a5752844fc5fb0b23db27 · Patch
• https://git.kernel.org/stable/c/e80fef36c676c947072dabeb5803ae59d92ba493 · Patch
• https://git.kernel.org/stable/c/99c8c16a4aad0b37293cae213e15957c573cf79b · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43372 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43372 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43372 · Security Note
• https://docs.bell-sw.com/security/cves/CVE-2026-43372 · Note
• https://twitter.com/CVEnew/status/2052810999254716790 · Twitter Post
• https://twitter.com/hetmehtaa/status/2055151398283837677 · Twitter Post