PT-2026-34997 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-03 · CVE-2026-31645

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 page pool leak occurs in the net: lan966x component during error paths. Specifically, the function lan966x fdma rx alloc() creates a page pool but fails to destroy it if the subsequent fdma alloc coherent() call fails. Additionally, lan966x fdma init() frees coherent DMA memory when lan966x fdma tx alloc() fails but does not destroy the page pool previously created by lan966x fdma rx alloc().

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

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2026-31645

Affected Products

Linux Kernel

References · 14

• https://osv.dev/vulnerability/BELL-CVE-2026-31645 · Vendor Advisory
• https://git.kernel.org/stable/c/4941e234cfd67ac911fb259642b453f9f76aac41 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31645 · Security Note
• https://git.kernel.org/stable/c/22e1ee9f22b5c3bb702bb6d4167d770002a85b2b · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31645 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31645 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31645 · Vendor Advisory
• https://git.kernel.org/stable/c/73e940c4249dc5ec6422d1fae535d192fb125955 · Patch
• https://git.kernel.org/stable/c/076344a6ad9d1308faaed1402fdcfdda68b604ab · Patch
• https://cve.org/CVERecord?id=CVE-2026-31645 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31645 · Vendor Advisory
• https://git.kernel.org/linus/076344a6ad9d1308faaed1402fdcfdda68b604ab · Note
• https://docs.bell-sw.com/security/cves/CVE-2026-31645 · Note
• https://twitter.com/CVEnew/status/2047731937066750124 · Twitter Post