PT-2026-34384 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-04-23 · CVE-2026-31479

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 drm/xe component where the system fails to maintain proper tracking of remap prev/next during 3D workloads. This occurs when a rebind is performed in the middle of a virtual memory area (VMA) and mapped ends are compatible, leading to the skipping of rebinds and the setting of next/prev to NULL. If an unwind path is triggered, it can result in overlapping VMAs, causing the system to enter a bad state and triggering warnings in the vm bind ioctl ops unwind() function.

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

Related Identifiers

CVE-2026-31479

Affected Products

Linux Kernel

References · 14

• https://cve.org/CVERecord?id=CVE-2026-31479 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31479 · Security Note
• https://git.kernel.org/stable/c/bfe9e314d7574d1c5c851972e7aee342733819d2 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-31479 · Vendor Advisory
• https://git.kernel.org/stable/c/ccd41f110c608b3cc347b9be881c3e72cd634b2b · Patch
• https://git.kernel.org/stable/c/5eda8001ebb5269755608d678dd1f3928ab077c9 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31479 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31479 · Vendor Advisory
• https://git.kernel.org/stable/c/e6ba1749549e87b83c0c4885d84b543687c3740e · Patch
• https://ubuntu.com/security/CVE-2026-31479 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31479 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2026-31479 · Note
• https://twitter.com/CVEnew/status/2046980003422715957 · Twitter Post
• https://git.kernel.org/linus/bfe9e314d7574d1c5c851972e7aee342733819d2 · Note