RDMA/ib_srp: Fix a deadlock in Kernel
Summary
GSD-2022-1000854: RDMA/ib_srp: Fix a deadlock. Affects Kernel versions >= ef6c49d87c3418c442a22e55e3ce2f91b163d69e, < 99eb8d694174c777558dc902d575d1997d5ca650. 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 interfaces with hardware devices. It manages system resources, facilitates communication between software and hardware, and ensures the stability and security of the system. RDMA (Remote Direct Memory Access) is a technology that allows high-speed data transfer between remote systems without involving the CPU. The ib_srp module in the Kernel provides SCSI RDMA Protocol (SRP) support for InfiniBand devices. SRP allows SCSI commands to be transported over RDMA networks. However, a deadlock vulnerability has been identified in the ib_srp module.
Vulnerability Detail
The identified vulnerability in the RDMA/ib_srp module can lead to a deadlock situation. A deadlock occurs when two or more processes or threads are unable to proceed because each is waiting for the other to release a resource. In this case, the deadlock can occur during the execution of certain operations involving the ib_srp module. This can result in system instability, unresponsiveness, or even a complete system crash. The vulnerability was introduced in version v3.8 of the Linux Kernel and has been fixed in version v5.10.103.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround available for this vulnerability. Updating the Kernel to the fixed version is the recommended solution.
Conclusion
The RDMA/ib_srp module in the Linux Kernel has been found to have a deadlock vulnerability. This vulnerability can lead to system instability or crashes. It is recommended to update the Kernel to version v5.10.103 or later to fix this issue. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The vulnerability can lead to system instability, unresponsiveness, or a complete system crash.
You can use tools like Vulert (https://vulert.com) to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
The exact attack vector and exploitability of this vulnerability have not been proven yet. However, it is always recommended to keep systems up to date with the latest security patches to mitigate potential risks.
There are no known instances of this vulnerability being exploited in the wild. However, it is important to apply the necessary updates to ensure the security and stability of the system.
You can refer to the vulnerability details in the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000854.json
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