Use-after-free vulnerability in nvme-rdma
Summary
GSD-2022-1000458: nvme-rdma: fix possible use-after-free in transport error_recovery work. Affects Kernel versions < 646952b2210f19e584d2bf9eb5d092abdca2fcc1. No fix is published. How to fix ↓
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Background
The nvme-rdma package is a component of the Linux Kernel that provides support for NVMe over RDMA (Remote Direct Memory Access) transport. RDMA allows for high-speed data transfers between remote systems without involving the CPU. The nvme-rdma package enables NVMe storage devices to communicate with the host system using RDMA. This package is vulnerable to a use-after-free vulnerability in its transport error_recovery work.
Vulnerability Detail
The use-after-free vulnerability in nvme-rdma occurs when the transport error_recovery work is executed. This vulnerability could be exploited by an attacker to manipulate freed memory, leading to a variety of potential security issues. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in Linux Kernel version v5.15.25 by commit 646952b2210f19e584d2bf9eb5d092abdca2fcc1.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The nvme-rdma package in the Linux Kernel is vulnerable to a use-after-free vulnerability in its transport error_recovery work. This vulnerability has been fixed in Linux Kernel version v5.15.25. It is recommended to update the Linux Kernel to the fixed version to mitigate the risk of exploitation. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
nvme-rdma is a package in the Linux Kernel that enables NVMe storage devices to communicate with the host system using RDMA (Remote Direct Memory Access) transport.
A use-after-free vulnerability occurs when a program continues to use a memory region after it has been freed. This can lead to various security issues, including crashes, data corruption, and potential code execution.
This vulnerability can be exploited by an attacker to manipulate freed memory, potentially leading to security issues such as crashes, data corruption, or even code execution.
No, the impact and attack plausibility of this vulnerability have not been proven yet. However, it is still recommended to apply the fix provided by updating the Linux Kernel to the fixed version.
To fix this vulnerability, update the Linux Kernel to version v5.15.25 or later by pulling the latest changes from the official Linux Kernel repository and checking out the fixed commit. Then, rebuild and install the updated Linux Kernel according to the provided instructions.
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