Critical Security Update for Real Time Linux Kernel: kernel-rt Vulnerability
Summary
ALSA-2025:0066: Important: kernel-rt security update. Affects kernel-rt versions < 4.18.0-553.34.1.rt7.375.el8_10. Fixed in 4.18.0-553.34.1.rt7.375.el8_10. How to fix ↓
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Background
The kernel-rt package provides the Real Time Linux Kernel, designed for systems requiring high determinism. It enables fine-tuning of system performance for real-time applications, making it essential for industries where timing is critical. This package is part of the AlmaLinux ecosystem, which aims to provide a stable and secure operating environment. However, like any software, it is susceptible to vulnerabilities that can compromise system integrity and performance.
Vulnerability Detail
The vulnerability stems from a race condition in the kernel-rt package, specifically affecting the i40e driver and the MultiPath TCP (MPTCP) implementation. The issues identified as CVE-2024-53088 and CVE-2024-53122 can lead to unexpected behavior in network operations, potentially allowing an attacker to exploit these conditions to disrupt service or gain unauthorized access. The ramifications of these vulnerabilities could be severe, impacting system reliability and security.
How To Fix
Minimum fixed version
4.18.0-553.34.1.rt7.375.el8_10
This is the first release that contains the fix.
sudo dnf update kernel-rtTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the security update as soon as it is available.
Conclusion
The kernel-rt package is critical for real-time applications, but it is currently affected by significant vulnerabilities. Updating to the patched version is essential to maintain system security and reliability. Users are encouraged to stay informed about updates and utilize tools like Vulert for ongoing monitoring.
See every vulnerability recorded for kernel-rt →
FAQ
The kernel-rt package provides a Real Time Linux Kernel optimized for high determinism, suitable for real-time applications.
These are identifiers for specific vulnerabilities affecting the kernel-rt package, related to race conditions in network operations.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without signup.
While there are no specific workarounds, it is advisable to monitor your system closely for any unusual behavior until the update can be applied.
Regularly check for updates, especially after a vulnerability announcement, to ensure your system remains secure.
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