Vulnerability in ceph: Fix Inode Leak on Getattr Error in __fh_to_dentry
Summary
GSD-2021-1000333: ceph: fix inode leak on getattr error in __fh_to_dentry. Affects Kernel versions >= 878dabb64117406abd40977b87544d05bb3031fc, < bf45c9fe99aa8003d2703f1bd353f956dea47e40. No fix is published. How to fix ↓
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Background
Ceph is a distributed storage system designed to provide excellent performance, reliability, and scalability. It is commonly used in cloud computing environments to store and manage large amounts of data. The vulnerability in ceph affects the Linux Kernel, which is the core component of the Linux operating system. The Linux Kernel is responsible for managing system resources and providing various services to applications running on the system.
Vulnerability Detail
The vulnerability in ceph is related to a potential inode leak when encountering an error during the getattr operation in the __fh_to_dentry function. This vulnerability was introduced in version v5.8 of the Linux Kernel and was fixed in version v5.10.38. When the getattr operation fails, the function may not properly release the inode, leading to a resource leak. This could potentially result in resource exhaustion and impact the stability and performance of the system. It is important to note that the actual impact and attack plausibility of this vulnerability have not yet been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the vulnerability in ceph that caused an inode leak on getattr error in the __fh_to_dentry function has been fixed in the Linux Kernel version v5.10.38. It is recommended to update the Linux Kernel to the patched version to mitigate the vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Ceph is a distributed storage system designed to provide excellent performance, reliability, and scalability. It is commonly used in cloud computing environments to store and manage large amounts of data.
The Linux Kernel is the core component of the Linux operating system. It is responsible for managing system resources and providing various services to applications running on the system.
An inode is a data structure in a file system that stores metadata about a file or directory, such as permissions, ownership, and timestamps.
The getattr operation is a file system operation that retrieves the attributes of a file or directory, such as size, permissions, and timestamps.
The potential ramifications of this vulnerability include resource exhaustion, impacting the stability and performance of the system. However, the actual impact and attack plausibility have not yet been proven.
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