Vulnerability in Kernel: mm, compaction: fast_find_migrateblock() should return pfn in the target zone
Summary
GSD-2022-1003744: mm, compaction: fast_find_migrateblock() should return pfn in the target zone. Affects Kernel versions >= 70b44595eafe9c7c235f076d653a268ca1ab9fdb, < f160e7b4b02a7369ac306c07a18102739d3415b8. No fix is published. 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 is a crucial component of the Linux operating system that manages system resources and provides an interface for software applications. It is responsible for memory management, process scheduling, device drivers, and other essential functions. The mm subsystem within the Kernel handles memory management, including memory allocation and deallocation. One of the features of the mm subsystem is compaction, which aims to reduce memory fragmentation by moving memory pages around. However, a vulnerability has been discovered in the compaction feature that can lead to potential security issues.
Vulnerability Detail
The vulnerability, identified as GSD-2022-1003744, exists in the fast_find_migrateblock() function within the mm compaction code. This function is responsible for finding a suitable memory block to migrate pages during compaction. However, it fails to return the correct page frame number (pfn) in the target zone. This flaw can potentially lead to memory corruption or privilege escalation attacks. Although the impact and attack plausibility have not been proven, it is essential to address this vulnerability to ensure the security and stability of the system.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
No specific workaround has been mentioned for this vulnerability. It is advised to apply the fix by updating the Kernel to the latest version.
Conclusion
In conclusion, the vulnerability in the Kernel's mm compaction feature can potentially lead to security issues. It is crucial to update the Kernel to the latest version to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The Kernel is a critical component of the Linux operating system that manages system resources and provides an interface for software applications.
The mm subsystem in the Kernel handles memory management, including memory allocation and deallocation.
Compaction is a feature in the mm subsystem that aims to reduce memory fragmentation by moving memory pages around.
fast_find_migrateblock() is a function within the mm compaction code that is responsible for finding a suitable memory block to migrate pages during compaction.
The impact of this vulnerability can include memory corruption or privilege escalation attacks.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
