Memory Leak in net/mlx5e Package
Summary
GSD-2021-1001906: net/mlx5e: Fix memory leak in mlx5_core_destroy_cq() error path. Affects Kernel versions >= e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c, < ed8aafea4fec9c654e63445236e0b505e27ed3a7. No fix is published. How to fix ↓
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Background
The net/mlx5e package is a component of the Linux Kernel that provides support for Mellanox network adapters. It includes drivers and utilities for managing and configuring these adapters. The package is responsible for handling network traffic and ensuring efficient communication between the network adapter and the operating system. However, a vulnerability has been identified in the package that can lead to a memory leak in certain error scenarios.
Vulnerability Detail
The vulnerability in the net/mlx5e package occurs during the destruction of completion queues (CQs) in the mlx5_core_destroy_cq() function. In specific error paths, memory allocated for CQs is not properly freed, resulting in a memory leak. This can lead to a gradual depletion of system resources, potentially causing performance degradation or even system instability. The vulnerability was introduced in version v3.11 of the Linux Kernel and has been fixed in version v5.14.14.
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 essential to apply the fix by updating the Linux Kernel to the recommended version.
Conclusion
The memory leak vulnerability in the net/mlx5e package can have significant consequences for system performance and stability. It is crucial to update the Linux Kernel to the recommended version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The net/mlx5e package is a component of the Linux Kernel that provides support for Mellanox network adapters.
The vulnerability can result in a memory leak, leading to a gradual depletion of system resources and potential performance degradation or system instability.
To fix the vulnerability, it is recommended to update the Linux Kernel to version v5.14.14 or later.
No, there is no known workaround for this vulnerability. Updating the Linux Kernel is necessary.
The vulnerability was introduced in version v3.11 of the Linux Kernel and fixed in version v5.14.14.
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