PT-2026-34911 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-03 · CVE-2026-31559

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 potential kernel oops can occur during early boot in LoongArch architectures when memory allocation fails while parsing the CPU model from the device tree. This is caused by missing NULL checks for the kstrdup() function.

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

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-31559

Affected Products

Linux Kernel

References · 14

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31559 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31559 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31559 · Vendor Advisory
• https://git.kernel.org/stable/c/3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1 · Patch
• https://cve.org/CVERecord?id=CVE-2026-31559 · Security Note
• https://git.kernel.org/stable/c/a1da957c25cf751a2dce8fb7777f82ccbac0cb3e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31559 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31559 · Vendor Advisory
• https://git.kernel.org/stable/c/5e7fde2c551f86e6c3de3fd7a9b1f52806ac8db0 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31559 · Vendor Advisory
• https://git.kernel.org/stable/c/b61a309743322fb57fb9afa9aa3495ac758e4f5e · Patch
• https://twitter.com/CVEnew/status/2047798626668470582 · Twitter Post
• https://git.kernel.org/linus/3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1 · Note
• https://docs.bell-sw.com/security/cves/CVE-2026-31559 · Note