RDMA/ib_srp: Fix a deadlock in Kernel

Kernel Updated 02 Oct 2025

Summary

18/03/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1000910: RDMA/ib_srp: Fix a deadlock. Affects Kernel versions >= ef6c49d87c3418c442a22e55e3ce2f91b163d69e, < d7997d19dfa7001ca41e971cd9efd091bb195b51. No fix is published. How to fix ↓

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Background

The Kernel is a crucial component of the Linux operating system that provides core functionalities and acts as an interface between hardware and software. It manages system resources, facilitates communication between different software components, and ensures the stability and security of the system. RDMA (Remote Direct Memory Access) is a technology that allows for high-speed data transfer between remote systems without involving the CPU. The ib_srp module in the Kernel provides support for SCSI RDMA Protocol (SRP) over InfiniBand. This protocol enables efficient block-level storage access over RDMA networks. However, a vulnerability has been discovered in the ib_srp module that can lead to a deadlock situation.

Vulnerability Detail

The vulnerability in RDMA/ib_srp module can result in a deadlock. A deadlock occurs when two or more processes are unable to proceed because each is waiting for the other to release a resource. In this case, the deadlock can be triggered by a specific sequence of events or conditions related to the RDMA/ib_srp module. If exploited, this vulnerability can cause system instability, unresponsiveness, or even a complete system crash. It is important to note that the impact and attack plausibility of this vulnerability have not been proven yet.

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 v4.19.232 or later. The fix for this issue was implemented in commit d7997d19dfa7001ca41e971cd9efd091bb195b51. By updating to the latest version of the Kernel, the deadlock issue in the RDMA/ib_srp module will be resolved.

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Workaround

There is no specific workaround mentioned for this vulnerability. However, users can mitigate the risk by ensuring they have the latest version of the Linux Kernel installed, which includes the fix for this issue.

Conclusion

In conclusion, the RDMA/ib_srp module in the Linux Kernel is vulnerable to a deadlock issue. This vulnerability can potentially lead to system instability or unresponsiveness. It is recommended to update the Kernel to the latest version, v4.19.232 or later, to fix this issue. For further support on vulnerability remediation, please contact DevNack.com.

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