Memory Ordering Vulnerability in btrfs Kernel Package
Summary
GSD-2021-1002257: btrfs: fix memory ordering between normal and ordered work functions. Affects Kernel versions >= 08a9ff3264181986d1d692a4e6fce3669700c9f8, < 670f6b3867c8f0f11e5097f353b164cecfec6179. No fix is published. How to fix ↓
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Background
The btrfs package is a file system for Linux Kernel that provides advanced features such as snapshots, pooling, and data integrity. It is widely used in various Linux distributions. However, a vulnerability has been discovered in the btrfs package that affects the memory ordering between normal and ordered work functions.
Vulnerability Detail
The vulnerability in the btrfs package arises from a memory ordering issue between normal and ordered work functions. This can potentially lead to memory corruption or data inconsistency. An attacker may be able to exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition. The vulnerability was introduced in version v3.15 of the Linux Kernel and has been fixed in version v5.4.162.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround available for this vulnerability. It is strongly advised to apply the fix by updating the Linux Kernel to the patched version.
Conclusion
The memory ordering vulnerability in the btrfs package can have serious security implications. It is crucial to update the Linux Kernel to the patched version to mitigate the risk. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
btrfs is a file system for Linux Kernel that provides advanced features such as snapshots, pooling, and data integrity.
The vulnerability can lead to memory corruption or data inconsistency, potentially allowing an attacker to execute arbitrary code or cause a denial-of-service condition.
To fix this vulnerability, update the Linux Kernel to version v5.4.162 or later.
No, there is no specific workaround available. It is recommended to apply the fix by updating the Linux Kernel.
For more information, refer to the vulnerability details in the Open Source Vulnerability database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/GSD-2021-1002257.json
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