Vulnerability in btrfs: do not BUG_ON in link_to_fixup_dir
Summary
GSD-2021-1000670: btrfs: do not BUG_ON in link_to_fixup_dir. Affects Kernel versions < 0eaf383c6a4a83c09f60fd07a1bea9f1a9181611. No fix is published. How to fix ↓
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Background
The btrfs package is a file system for Linux that provides advanced features such as snapshots, pooling, and checksums. It is widely used in various Linux distributions. However, a vulnerability has been discovered in the package that can lead to a denial of service (DoS) attack or potential security breaches.
Vulnerability Detail
The vulnerability in btrfs occurs in the link_to_fixup_dir function. It was introduced in an unknown version and fixed in Linux Kernel version v4.14.235 by commit 0eaf383c6a4a83c09f60fd07a1bea9f1a9181611. The vulnerability allows an attacker to trigger a BUG_ON assertion failure, leading to a system crash or potential privilege escalation. The impact and attack plausibility have not been proven yet, but it is crucial to address this vulnerability to ensure the security and stability of systems using the btrfs package.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the fix mentioned in the 'how_to_fix' section to mitigate the risk of exploitation.
Conclusion
The vulnerability in btrfs can lead to system crashes or potential privilege escalation. It is crucial to update the Linux Kernel to version v4.14.235 or later to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
btrfs is a file system for Linux that provides advanced features such as snapshots, pooling, and checksums.
The vulnerability can lead to a denial of service (DoS) attack or potential security breaches.
To fix this vulnerability, update the Linux Kernel to version v4.14.235 or later.
There is no known workaround for this vulnerability. Applying the fix is the recommended solution.
For more information, refer to the provided references link in the vulnerability details.
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