PT-2026-34995 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-04-28 · CVE-2026-31643

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 occurs in the rxrpc key parsing process. Specifically, in the rxrpc preparse xdr yfs rxgk() function, memory attached to the token->rxgk variable can be leaked in several error paths after allocation.

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-2026-31643

Affected Products

Linux Kernel

References · 12

• https://cve.org/CVERecord?id=CVE-2026-31643 · Security Note
• https://git.kernel.org/stable/c/b555912b9b21075e8298015f888ffe3ff60b1a97 · Patch
• https://ubuntu.com/security/CVE-2026-31643 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31643 · Vendor Advisory
• https://git.kernel.org/stable/c/d5f76f812d2c0ea6dd651b0586be49e85ecca085 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31643 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31643 · Vendor Advisory
• https://git.kernel.org/stable/c/01f51318feb626deee1d0c8a190198cd7857d599 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31643 · Vendor Advisory
• https://git.kernel.org/linus/b555912b9b21075e8298015f888ffe3ff60b1a97 · Note
• https://twitter.com/CVEnew/status/2047731939650506916 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2047800459436421140 · Twitter Post