Critical Kernel Security Update for AlmaLinux: Addressing Multiple Vulnerabilities
Summary
ALSA-2026:0453: Important: kernel security update. Affects kernel versions < 6.12.0-124.27.1.el10_1. Fixed in 6.12.0-124.27.1.el10_1. How to fix ↓
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Background
The kernel is the core component of any Linux operating system, responsible for managing system resources and facilitating communication between hardware and software. AlmaLinux, a community-driven enterprise-grade Linux distribution, relies on a robust kernel to ensure system stability and security. Recent vulnerabilities have been identified in the kernel packages, necessitating immediate attention to maintain system integrity and protect against potential exploits.
Vulnerability Detail
The vulnerabilities identified in the kernel packages include several critical issues such as out-of-bounds access, race conditions, and NULL dereferences. These vulnerabilities can lead to system crashes, unauthorized access, and potential data breaches. Specifically, issues like the slab out-of-bounds access in mt_report_fixup() (CVE-2025-39806) and the race condition in concurrent dwc3_remove_requests() (CVE-2025-68287) pose significant risks to system security and stability.
How To Fix
Minimum fixed version
6.12.0-124.27.1.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 workaround, users may consider disabling specific kernel features or modules that are known to be vulnerable until the system can be updated. However, this is not a recommended long-term solution and should only be used if absolutely necessary.
Conclusion
In summary, the recent kernel vulnerabilities in AlmaLinux highlight the importance of maintaining up-to-date software to safeguard against potential exploits. Users are strongly encouraged to update their kernel packages to the latest patched version to ensure system security and stability.
See every vulnerability recorded for kernel →
FAQ
The update addresses multiple vulnerabilities including out-of-bounds access, race conditions, and NULL dereferences that could lead to system instability and security breaches.
You can use Vulert 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.
If you cannot update your kernel immediately, consider disabling vulnerable features or modules as a temporary workaround, but ensure to plan for an update as soon as possible.
Continuing to use your system without applying this update poses significant risks, including potential data breaches and system crashes. It is highly recommended to apply the update as soon as possible.
It is advisable to check for kernel updates regularly, ideally as part of your routine system maintenance, to ensure you are protected against the latest vulnerabilities.
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