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Unscored USN-7489-1 1 CVE

linux, linux-aws, linux-gcp, linux-gcp-6.11, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oracle, linux-raspi vulnerability

Published May 6, 2025 · Updated Feb 10, 2026

Ecosystem: Ubuntu

Summary

One security issue was discovered in the Linux kernel.
An attacker could possibly use this to compromise the system.
This update corrects flaws in the following subsystems:
- Timer subsystem;
(CVE-2025-21813)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 24.04 LTS 24.04:LTS linux-gcp-6.11 6.11.0-1014.14~24.04.1
Ubuntu · 24.04 LTS 24.04:LTS linux-hwe-6.11 6.11.0-25.25~24.04.1
Ubuntu · 24.04 LTS 24.04:LTS linux-lowlatency-hwe-6.11 6.11.0-1013.14~24.04.1

Vulnerabilities 1

  • Unscored —
    CVE-2025-21813

    timers/migration: Fix off-by-one root mis-connection

    In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix off-by-one root mis-connection Before attaching a new root to the old root, the children counter of the new root is checked to verify that only the upcoming CPU's top gr…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • report
    https://ubuntu.com/security/CVE-2025-21813