PT-2026-30158 · Linux+1 · Linux Kernel+1

Published 2026-04-03 · Updated 2026-04-20 · CVE-2026-23464

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 memory leak was identified in the mpfs sys controller probe() function within the Microchip MPFS driver for the Linux kernel. Specifically, if of get mtd device by node() fails, the allocated memory for sys controller is not freed, resulting in a memory leak. The fix involves adding a jump to the out free label to ensure proper memory deallocation and consolidating error handling for mbox request channel() failures to the same label.

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-2026-23464

Affected Products

Linux Kernel

Microchip Mpfs

References · 15

• https://cve.org/CVERecord?id=CVE-2026-23464 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-23464 · Vendor Advisory
• https://git.kernel.org/stable/c/5a741f8cc6fe62542f955cd8d24933a1b6589cbd · Patch
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-23464 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-23464 · Vendor Advisory
• https://git.kernel.org/stable/c/17c84fb7cf3971cc621646185d785670e9530ca1 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23464 · Vendor Advisory
• https://git.kernel.org/stable/c/e3dd5cffba07de6574165a72851471cd42cc6d15 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23464 · Vendor Advisory
• https://git.kernel.org/stable/c/da4b44c42f40501db35f5d0a6243708a061490a0 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-23464 · Security Note
• https://ubuntu.com/security/CVE-2026-23464 · Vendor Advisory
• https://git.kernel.org/linus/5a741f8cc6fe62542f955cd8d24933a1b6589cbd · Note
• https://docs.bell-sw.com/security/cves/CVE-2026-23464 · Note
• https://twitter.com/VulmonFeeds/status/2040202123212730768 · Twitter Post