PT-2026-30164 · Linux+1 · Linux Kernel+1

Published 2026-04-03 · Updated 2026-04-20 · CVE-2026-23470

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 deadlock issue existed within the soft reset sequence in the drm/imagination module of the Linux kernel. The soft reset sequence was executed from a threaded IRQ handler, which attempted to call disable irq(). This function internally waits for IRQ handlers, including itself, to complete, leading to a deadlock. The issue was resolved by using disable irq nosync() during the soft reset sequence.

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

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

CVE-2026-23470

Affected Products

Linux Kernel

Drm/Imagination

References · 16

• https://git.kernel.org/stable/c/9497b1f309436971726e229aa6026954ea7c28e9 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23470 · Vendor Advisory
• https://git.kernel.org/stable/c/f99e8b813ae5ce8ffd62c33f5753bf0a008af4b1 · Patch
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-23470 · Vendor Advisory
• https://git.kernel.org/stable/c/a55c2a5c8d680156495b7b1e2a9f5a3e313ba524 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23470 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23470 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2026-23470 · Vendor Advisory
• https://git.kernel.org/stable/c/6f39b48a2d3b1fe83f99477250cd0cd67ca1e1c6 · Patch
• https://cve.org/CVERecord?id=CVE-2026-23470 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-23470 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23470 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2026-23470 · Note
• https://twitter.com/CVEnew/status/2040111856275312726 · Twitter Post
• https://git.kernel.org/linus/a55c2a5c8d680156495b7b1e2a9f5a3e313ba524 · Note