IB/hfi1: Restore allocated resources on failed copyout
Summary
GSD-2023-1002370: IB/hfi1: Restore allocated resources on failed copyout. Affects Kernel versions >= f404ca4c7ea8e650ba09ba87c71c7a89c865d5be, < 9bae58d58b6bb73b572356b31a62d2afc7378d12. No fix is published. How to fix ↓
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Background
The IB/hfi1 package is a component of the Linux Kernel, which is responsible for managing InfiniBand and High-Speed Networking. It provides the necessary drivers and protocols for efficient communication between nodes in a cluster. The vulnerability in question relates to the improper restoration of allocated resources during a failed copyout operation.
Vulnerability Detail
The vulnerability arises from a failure to properly restore allocated resources in the IB/hfi1 package when a copyout operation fails. This can lead to resource leaks and potential memory corruption. An attacker may be able to exploit this vulnerability to execute arbitrary code or cause a denial of service. The vulnerability was introduced in version v4.15 of the Linux Kernel and has been fixed in version v5.15.94.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround provided for this vulnerability. The recommended course of action is to apply the fix by updating the Linux Kernel to the latest version.
Conclusion
The IB/hfi1 package in the Linux Kernel is vulnerable to a flaw that can result in resource leaks and potential memory corruption. It is crucial to update the Linux Kernel to version v5.15.94 or later to mitigate the risk of exploitation. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can potentially allow an attacker to execute arbitrary code or cause a denial of service by exploiting the improper restoration of allocated resources.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the playground will provide real-time alerts for any open-source vulnerabilities, including this one.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate the risk.
This vulnerability requires local access to the affected system in order to exploit it. Remote exploitation is not possible.
If updating the Linux Kernel is not immediately feasible, it is recommended to implement other security measures such as network segmentation, access controls, and monitoring to reduce the risk of exploitation.
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