PT-2026-35022 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-26 · CVE-2026-31670

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 flaw in the net: rfkill subsystem allows userspace to create an unlimited number of rfkill events if the system is configured to do so and the events are not consumed from the rfkill file descriptor. This can lead to an out of memory situation, resulting in a denial of service.

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

Related Identifiers

CVE-2026-31670

ECHO-E41E-00CF-07F3

Affected Products

Linux Kernel

References · 20

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31670 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-31670 · Vendor Advisory
• https://git.kernel.org/stable/c/a8c26800e0220e1550af012f5a20e50f5c78864d · Patch
• https://git.kernel.org/stable/c/b1e0c8d3ab58a0161db487bf5fc47adfcaf5d5ca · Patch
• https://git.kernel.org/stable/c/4bcd1615a4e2a185ae9edd27b4143d7dfa7134f4 · Patch
• https://cve.org/CVERecord?id=CVE-2026-31670 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-31670 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31670 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31670 · Vendor Advisory
• https://git.kernel.org/stable/c/80ce4cb026f0a4c4532b6cad827b44debda6256a · Patch
• https://git.kernel.org/stable/c/ea245d78dec594372e27d8c79616baf49e98a4a1 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31670 · Security Note
• https://git.kernel.org/stable/c/e3842779547c83150569071d9980517cc9029fc0 · Patch
• https://git.kernel.org/stable/c/82843afc19012a29ba863961ef494165aa1a88f4 · Patch
• https://git.kernel.org/stable/c/673d2a3eef6e0ee9736501a150c9e4024a4e60a6 · Patch