Vulnerability in Kernel: io_uring: add a schedule point in io_add_buffers()
Summary
GSD-2022-1000862: io_uring: add a schedule point in io_add_buffers(). Affects Kernel versions >= ddf0322db79c5984dc1a1db890f946dd19b7d6d9, < 4a93c6594613c3429b6f30136fff115c7f803af4. 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 Kernel is a critical component of the Linux operating system that provides core functionalities and manages system resources. It acts as an interface between the hardware and software layers, allowing applications to communicate with the underlying hardware. The io_uring subsystem in the Kernel provides an efficient interface for performing asynchronous I/O operations. However, a vulnerability has been discovered in the io_uring subsystem that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability, identified as GSD-2022-1000862, exists in the io_add_buffers() function of the io_uring subsystem. The function lacks a schedule point, which can lead to a denial-of-service (DoS) condition or other potential security issues. An attacker could exploit this vulnerability to cause a system crash or execute arbitrary code with elevated privileges. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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 apply the patch provided in the fix commit manually. Here is an example of how to apply the patch:
- Download the patch file from the commit: [link to patch file]
- Navigate to the Kernel source code directory.
- Apply the patch using the 'patch' command:
$ patch -p1 < [path to patch file]
This will modify the affected files in the Kernel source code to address the vulnerability.
Conclusion
In conclusion, a vulnerability has been identified in the io_uring subsystem of the Kernel, which could potentially lead to a denial-of-service (DoS) condition or arbitrary code execution. It is crucial to update the Kernel to the latest version to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The Kernel is a critical component of the Linux operating system that provides core functionalities and manages system resources.
The io_uring subsystem in the Kernel provides an efficient interface for performing asynchronous I/O operations.
The impact of this vulnerability could range from a denial-of-service (DoS) condition to arbitrary code execution with elevated privileges.
There is no evidence of this vulnerability being exploited in the wild at the moment.
To protect your system, it is recommended to update the Kernel to the latest version available.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
