PT-2026-34347 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-05-07 · CVE-2026-31442

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 An issue exists in the dmaengine idxd component where an invalid memory access can occur. This happens if a first Function Level Reset (FLR) completes successfully, but a subsequent second FLR fails to allocate the scratch area for the saved configuration.

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

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-31442

Affected Products

Linux Kernel

References · 13

• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31442 · Vendor Advisory
• https://git.kernel.org/stable/c/867d0c801f21370d561420fa32f2ea1a7dc3a22d · Patch
• https://ubuntu.com/security/CVE-2026-31442 · Vendor Advisory
• https://git.kernel.org/stable/c/d6077df7b75d26e4edf98983836c05d00ebabd8d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31442 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-31442 · Security Note
• https://git.kernel.org/stable/c/504c0e6751001ac46917c73e703f2b1b92cfc026 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31442 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31442 · Vendor Advisory
• https://twitter.com/infoflowcloud/status/2046982016269234184 · Twitter Post
• https://twitter.com/CVEnew/status/2046980050918977781 · Twitter Post
• https://git.kernel.org/linus/d6077df7b75d26e4edf98983836c05d00ebabd8d · Note
• https://t.me/cveNotify/162622 · Telegram Post