PT-2026-30035 · Linux · Linux Kernel

Published 2026-04-03 · Updated 2026-04-03 · CVE-2026-23421

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 The Linux kernel contains a flaw within the drm/xe/configfs subsystem. Specifically, memory allocated for ctx restore mid bb is not fully freed during device removal, leading to a memory leak.

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

Related Identifiers

CVE-2026-23421

Affected Products

Linux Kernel

References · 13

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23421 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23421 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-23421 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-23421 · Vendor Advisory
• https://git.kernel.org/stable/c/e377182f0266f46f02d01838e6bde67b9dac0d66 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23421 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23421 · Security Note
• https://git.kernel.org/stable/c/7f971dfd48983074adc7bbcea3ee95ce7aad47cb · Patch
• https://git.kernel.org/stable/c/3557359ea3df32430ea7c30f7a708ca9a91d7e0e · Patch
• https://twitter.com/infoflowcloud/status/2040113580104733117 · Twitter Post
• https://git.kernel.org/linus/e377182f0266f46f02d01838e6bde67b9dac0d66 · Note
• https://twitter.com/VulmonFeeds/status/2040097176961921222 · Twitter Post
• https://twitter.com/CVEnew/status/2040111919168889228 · Twitter Post