Critical Security Update for kernel-rt: Addressing Multiple Vulnerabilities
Summary
ALSA-2026:67469: Important: kernel-rt security update. Affects kernel-rt versions < 4.18.0-553.163.1.rt7.504.el8_10. Fixed in 4.18.0-553.163.1.rt7.504.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 is crucial for applications that demand precise timing and responsiveness, such as industrial automation and real-time data processing. However, this package has been found vulnerable to several security issues that could compromise system integrity and performance.
Vulnerability Detail
The kernel-rt package has multiple vulnerabilities, including potential integer overflows, use-after-free issues, and buffer overflows. These vulnerabilities can lead to system crashes, unauthorized access, or data corruption. Specifically, vulnerabilities like CVE-2024-53161 and CVE-2026-68363 highlight the risks associated with improper memory management and network handling, which can be exploited by attackers to disrupt system operations.
How To Fix
Minimum fixed version
4.18.0-553.163.1.rt7.504.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
As a temporary measure, you can restrict access to the affected components or disable specific features that utilize the vulnerable functionalities until the package is updated. However, this is not a long-term solution and should only be used until the patch is applied.
Conclusion
The kernel-rt package has been identified with critical vulnerabilities that require immediate attention. Updating to the latest patched version is essential to maintain system integrity and security. Users are encouraged to monitor their systems and apply necessary updates promptly.
See every vulnerability recorded for kernel-rt →
FAQ
kernel-rt is a Real Time Linux Kernel package that provides enhanced performance for applications requiring high determinism.
The vulnerabilities can lead to system crashes, unauthorized access, and potential data corruption, impacting system reliability.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by these vulnerabilities without requiring any signup.
If immediate updates are not possible, consider implementing workarounds such as restricting access to vulnerable components.
Detailed information about the vulnerabilities can be found on the respective CVE pages linked in the advisory.
Related vulnerabilities
Recent vulnerabilities recorded for kernel-rt.
