Refcounting Leak in RDMA/siw Package
Summary
GSD-2022-1000583: RDMA/siw: Fix refcounting leak in siw_create_qp(). Affects Kernel versions >= 514aee660df493cd673154a6ba6bab745ec47b8c, < 2989ba9532babac66e79997ccff73c015b69700c. No fix is published. How to fix ↓
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Background
The RDMA/siw package is a component of the Linux Kernel that provides support for the Softiwarp RDMA protocol. This protocol allows for efficient communication between remote systems using Remote Direct Memory Access (RDMA) technology. The siw_create_qp() function is responsible for creating a queue pair (QP) for communication between the local and remote systems. However, a refcounting leak vulnerability has been identified in this function.
Vulnerability Detail
The refcounting leak vulnerability in siw_create_qp() allows an attacker to cause a memory leak by repeatedly creating and destroying queue pairs. This can lead to a depletion of system resources, potentially resulting in a denial of service (DoS) condition. The vulnerability was introduced in version v5.15 of the Linux Kernel and has been fixed in version v5.15.22.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is necessary to apply the fix by updating the Linux Kernel.
Conclusion
The refcounting leak vulnerability in siw_create_qp() can lead to a memory leak and potential denial of service (DoS) condition. It is crucial to update the Linux Kernel to version v5.15.22 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a memory leak and potential denial of service (DoS) condition.
You can use the Vulert playground at Vulert Scanner to check if your system is affected by this vulnerability.
Yes, a patch is available in version v5.15.22 of the Linux Kernel.
Yes, this vulnerability can be exploited remotely by an attacker.
There are no known instances of this vulnerability being exploited in the wild.
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