Vulnerability in Linux Kernel: filemap Serialization
Summary
GSD-2022-1004260: filemap: Fix serialization adding transparent huge pages to page cache. Affects Kernel versions >= 793917d997df2e432f3e9ac126e4482d68256d01, < 28e016f00c67c03a1081a090a620f67aeef48044. 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 Linux Kernel is a critical component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software. It is a widely used open-source package that forms the foundation of numerous Linux distributions. The filemap subsystem within the Kernel is responsible for managing the page cache, which stores frequently accessed data from files in memory for faster access. This vulnerability specifically affects the serialization process when adding transparent huge pages to the page cache.
Vulnerability Detail
The vulnerability arises from a flaw in the filemap subsystem's serialization mechanism when transparent huge pages are added to the page cache. This flaw could potentially lead to security breaches, although the exact impact and likelihood of exploitation have not been proven. The vulnerability was introduced in version v5.18 of the Linux Kernel and has been fixed in version v5.18.8 by commit 28e016f00c67c03a1081a090a620f67aeef48044. For more technical details, please refer to the references link provided.
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.
Conclusion
In conclusion, a vulnerability has been identified in the Linux Kernel's filemap subsystem, specifically related to the serialization process when adding transparent huge pages to the page cache. It is crucial to update the Linux Kernel to version v5.18.8 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The Linux Kernel is a critical component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software.
The filemap subsystem within the Linux Kernel is responsible for managing the page cache, which stores frequently accessed data from files in memory for faster access.
The exact impact of this vulnerability is not yet proven. However, it could potentially lead to security breaches if exploited.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.18.8 or later.
For more technical details, please refer to the references link provided.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
