Use-after-free vulnerability in nvme-rdma

Kernel Updated 02 Oct 2025

Summary

27/02/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1000330: nvme-rdma: fix possible use-after-free in transport error_recovery work. Affects Kernel versions < 5593f72d1922403c11749532e3a0aa4cf61414e9. 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) devices. It allows for high-performance storage access over RDMA networks. RDMA is a technology that enables direct memory access from the memory of one computer to the memory of another computer without involving the operating system or CPU, resulting in low-latency and high-bandwidth communication. The nvme-rdma package is responsible for handling the transport layer for NVMe devices over RDMA.

Vulnerability Detail

The vulnerability identified in the nvme-rdma package is a use-after-free issue that occurs during the transport error recovery work. A use-after-free vulnerability arises when a program continues to use a memory reference after it has been freed, leading to potential memory corruption or the execution of arbitrary code. In this case, the vulnerability could be triggered during the error recovery process of the transport layer, potentially allowing an attacker to exploit the freed memory and execute malicious code or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven.

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 use-after-free vulnerability in nvme-rdma has the potential to allow an attacker to execute arbitrary code or cause a denial-of-service condition. It is crucial to update the Linux Kernel to version v4.19.231 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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