mptcp: Fix Possible Stall on recvmsg() in Linux Kernel
Summary
GSD-2021-1002161: mptcp: fix possible stall on recvmsg(). Affects Kernel versions >= 7a6a6cbc3e592e339ad23e4e8ede9a3f6160bda8, < 612f71d7328c14369924384ad2170aae2a6abd92. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing essential functionality. It is an open-source project that is constantly being developed and improved by a large community of contributors. The MultiPath TCP (MPTCP) is an extension to the TCP protocol that enables the simultaneous use of multiple network paths for a single TCP connection. It provides benefits such as improved throughput, resilience to network failures, and better resource utilization. However, a vulnerability has been discovered in the MPTCP implementation in the Linux Kernel that could lead to a possible stall on the recvmsg() function.
Vulnerability Detail
The vulnerability in the MPTCP implementation can cause a potential stall on the recvmsg() function. This function is used for receiving messages from a socket and is a critical part of the network communication process. If a stall occurs, it can result in delays or even a complete halt in the reception of messages, leading to a disruption in network communication. The impact and attack plausibility of this vulnerability have not been proven yet, but it is important to address it to ensure the stability and reliability of network connections.
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. The recommended solution is to update the Linux Kernel to the fixed version.
Conclusion
The vulnerability in the MPTCP implementation in the Linux Kernel that could cause a possible stall on the recvmsg() function has been addressed in the Linux Kernel version v5.15. It is important for users to update their Linux Kernel to the fixed version to ensure the stability and reliability of network connections. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing essential functionality.
MultiPath TCP (MPTCP) is an extension to the TCP protocol that enables the simultaneous use of multiple network paths for a single TCP connection, providing benefits such as improved throughput and resilience to network failures.
The recvmsg() function is used for receiving messages from a socket in the network communication process.
The vulnerability can cause a potential stall on the recvmsg() function, leading to delays or disruptions in network communication.
To fix the vulnerability, update the Linux Kernel to version v5.15 or later.
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