PT-2026-34926 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-06 · CVE-2026-31574

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 flaw in the clockevents prevention mechanism against timer interrupt starvation occurs because the next event forced flag is not reset in certain scenarios. This failure happens when the clock event state changes, when a non-forced event is armed, or within the suspend wakeup handler. These conditions can lead to stale flags during shutdown/startup sequences or missed timer interrupts if an event is scheduled far in the future, resulting in system stalls.

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

Related Identifiers

CVE-2026-31574

OPENSUSE-SU-2026:10703-1

Affected Products

Linux Kernel

References · 71

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31574 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31574 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31574 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10703-1 · Vendor Advisory
• https://git.kernel.org/stable/c/9401b593fa48218d2667df1610b0ebc518554880 · Patch
• https://ubuntu.com/security/CVE-2026-31574 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31574 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-31574 · Vendor Advisory
• https://git.kernel.org/stable/c/4096fd0e8eaea13ebe5206700b33f49635ae18e5 · Patch
• https://suse.com/security/cve/CVE-2026-31622 · Note
• https://suse.com/security/cve/CVE-2026-31627 · Note
• https://suse.com/security/cve/CVE-2026-31593 · Note
• https://suse.com/security/cve/CVE-2026-31610 · Note
• https://suse.com/security/cve/CVE-2026-31615 · Note
• https://suse.com/security/cve/CVE-2026-31629 · Note