PT-2026-30184 · Linux · Linux Kernel

Published 2026-03-13 · Updated 2026-04-04 · CVE-2026-31401

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux Kernel (affected versions not specified)

Description The Linux kernel contains a flaw within the HID subsystem's BPF functionality. Specifically, the hid hw request function does not adequately validate the return value from dispatch hid bpf raw requests(), which utilizes struct operations. This can lead to a buffer overflow if the return value is unexpectedly large, potentially occurring when interacting with HID-BPF.

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

Weakness Enumeration

CWE-131

Related Identifiers

BDU:2026-05765

CVE-2026-31401

Affected Products

Linux Kernel

References · 21

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31401 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31401 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31401 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-05765 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-31401 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31401 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31401 · Security Note
• https://ubuntu.com/security/CVE-2026-31401 · Vendor Advisory
• https://git.kernel.org/linus/2b658c1c442ec1cd9eec5ead98d68662c40fe645 · Note
• https://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510 · Note
• https://access.redhat.com/security/cve/cve-2026-31401 · Note
• https://twitter.com/vuldb/status/2040114129072230825 · Twitter Post
• https://docs.bell-sw.com/security/cves/CVE-2026-31401 · Note
• https://twitter.com/VulmonFeeds/status/2040133010947723406 · Twitter Post
• https://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7 · Note