Vulnerability in btrfs Kernel Package: promote debugging asserts to full-fledged checks in validate_super
Summary
GSD-2021-1000951: btrfs: promote debugging asserts to full-fledged checks in validate_super. Affects Kernel versions < 31fe243a6376e81f69ffab3853c35a6c4f3be5fc. No fix is published. How to fix ↓
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Background
The btrfs package is a part of the Linux Kernel ecosystem and is responsible for providing support for the B-tree file system. It offers advanced features like snapshots, pooling, and checksums, making it suitable for use in modern storage systems. The validate_super function in btrfs is responsible for validating the superblock of the file system. However, prior to the fix, certain checks in this function were implemented as debugging asserts, which were not enforced in production builds.
Vulnerability Detail
The vulnerability in the btrfs package arises from the promotion of debugging asserts to full-fledged checks in the validate_super function. These checks were originally intended for debugging purposes and were not meant to be enforced in production builds. By promoting these asserts, potential security vulnerabilities can be discovered and addressed. The impact and attack plausibility of this vulnerability have not been proven yet. However, it is important to note that this vulnerability has been fixed in Linux Kernel version v5.10.44 by commit 31fe243a6376e81f69ffab3853c35a6c4f3be5fc.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
In conclusion, the btrfs package in the Linux Kernel was found to have a vulnerability where debugging asserts were promoted to full-fledged checks in the validate_super function. This vulnerability has been fixed in Linux Kernel version v5.10.44 by commit 31fe243a6376e81f69ffab3853c35a6c4f3be5fc. It is recommended to update the btrfs package to the latest version to ensure the fix is applied. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The btrfs package is a part of the Linux Kernel ecosystem and provides support for the B-tree file system. It offers advanced features like snapshots, pooling, and checksums.
The validate_super function in btrfs is responsible for validating the superblock of the file system.
The checks in the validate_super function were originally implemented as debugging asserts.
The impact of this vulnerability is currently unknown as the attack plausibility has not been proven. However, by promoting debugging asserts to full-fledged checks, potential security vulnerabilities can be discovered and addressed.
Yes, this vulnerability has been fixed in Linux Kernel version v5.10.44 by commit 31fe243a6376e81f69ffab3853c35a6c4f3be5fc.
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