Critical Security Flaw in Kernel Package: Important Kernel Security Update
Summary
ALSA-2026:1690: Important: kernel security update. Affects kernel versions < 6.12.0-124.31.1.el10_1. Fixed in 6.12.0-124.31.1.el10_1. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The kernel package is a fundamental component of any Linux operating system, serving as the core interface between the computer's hardware and its processes. It manages system resources, facilitates communication between software and hardware, and ensures system stability. The kernel is crucial for the overall performance and security of the operating system, making it a prime target for vulnerabilities.
Vulnerability Detail
The vulnerability identified in the kernel package is a series of critical security flaws, including a use-after-free vulnerability in irqchip/gic-v2m (CVE-2025-37819) and a potential memory corruption issue in vsock (CVE-2025-40248). These vulnerabilities can lead to privilege escalation, denial of service, and information disclosure, posing significant risks to system integrity and data security. The flaws stem from improper memory management and race conditions within the kernel's code, which could be exploited by malicious actors to gain unauthorized access or disrupt system operations.
How To Fix
Minimum fixed version
6.12.0-124.31.1.el10_1
This is the first release that contains the fix.
sudo dnf update kernelTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can limit access to the affected components or disable specific kernel features until the update is applied. However, this is not a long-term solution and should only be used to mitigate immediate risks.
Conclusion
The kernel package is a vital component of the Linux operating system, and the identified vulnerabilities pose serious risks to system security and stability. It is crucial to apply the available patches promptly to mitigate these risks and maintain the integrity of your system.
See every vulnerability recorded for kernel →
FAQ
A use-after-free vulnerability occurs when a program continues to use a pointer after the memory it points to has been freed, potentially leading to arbitrary code execution or crashes.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring any signup.
Exploitation of this vulnerability could lead to privilege escalation, allowing unauthorized users to gain elevated access to system resources, or cause denial of service, disrupting normal operations.
Yes, you can limit access to the affected components or disable specific kernel features as a temporary workaround until the patch is applied.
It is recommended to regularly check for updates and apply them promptly, especially when security vulnerabilities are disclosed, to ensure your system remains secure.
Related vulnerabilities
Recent vulnerabilities recorded for kernel.
