f2fs: quota: fix loop condition at f2fs_quota_sync()
Summary
GSD-2022-1001622: f2fs: quota: fix loop condition at f2fs_quota_sync(). Affects Kernel versions >= 9de71ede81e6d1a111fdd868b2d78d459fa77f80, < e9ebf1e8fc50b6a9336f9aea1082d7845e568d0e. 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 f2fs package is a file system designed for flash-based storage devices in the Linux Kernel. It provides efficient and reliable storage management for devices such as solid-state drives (SSDs). The f2fs_quota_sync() function is responsible for synchronizing quota information with the file system. However, a loop condition in this function has been identified as a vulnerability.
Vulnerability Detail
The vulnerability in f2fs_quota_sync() arises from a loop condition that is not properly handled. This can lead to an infinite loop, causing the system to become unresponsive or crash. An attacker could potentially exploit this vulnerability to launch a denial-of-service attack, disrupting the availability of the affected system. The vulnerability was introduced in Linux Kernel version v5.15 and is fixed in version v5.16.19.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.16.19 or later. This can be done by downloading the updated kernel source code from the official Linux Kernel repository and compiling it for the target system. Alternatively, users can wait for their Linux distribution to release an updated package containing the fix.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a workaround, users can disable quota functionality in the f2fs file system. This can be achieved by removing the quota mount option from the file system configuration. However, it is important to note that this workaround will disable quota management for the entire file system, which may not be desirable in some scenarios.
Conclusion
In conclusion, the f2fs package in the Linux Kernel is vulnerable to an infinite loop condition in the f2fs_quota_sync() function. This can be exploited by an attacker to launch a denial-of-service attack. It is recommended to update the Linux Kernel to version v5.16.19 or later to fix this vulnerability. Alternatively, users can disable quota functionality as a temporary workaround. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
f2fs is a file system designed for flash-based storage devices in the Linux Kernel. It provides efficient and reliable storage management for devices such as solid-state drives (SSDs).
The vulnerability can lead to an infinite loop in the f2fs_quota_sync() function, causing the system to become unresponsive or crash. This can be exploited by an attacker to launch a denial-of-service attack.
To fix this vulnerability, update the Linux Kernel to version v5.16.19 or later. Alternatively, wait for your Linux distribution to release an updated package containing the fix.
Yes, you can disable quota functionality in the f2fs file system by removing the quota mount option from the file system configuration. However, this will disable quota management for the entire file system.
For more information about this vulnerability, you can refer to the official Linux Kernel repository or the vulnerability database entry at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001622.json.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Follow Vulert in Google
Get more Vulert vulnerability and dependency-security updates in Google Search and AI results.