net/mlx5: Update error handler for UCTX and UMEM
Summary
GSD-2021-1002319: net/mlx5: Update error handler for UCTX and UMEM. Affects Kernel versions >= 6a6fabbfa3e8c656ff906ae999fb6856410fa4cd, < a51a6da375d82aed5c8f83abd13e7d060421bd48. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The net/mlx5 package is a part of the Linux Kernel ecosystem. It provides support for Mellanox ConnectX network adapters, which are commonly used in high-performance computing and data center environments. The package includes drivers and utilities for managing and configuring these network adapters. The vulnerability in net/mlx5 affects the error handler for UCTX (User Context) and UMEM (User Memory), which are critical components for managing memory and resources in the network adapter. This vulnerability can potentially be exploited to cause a denial-of-service (DoS) condition or escalate privileges.
Vulnerability Detail
The vulnerability in net/mlx5 was introduced in version v5.2 of the Linux Kernel and is fixed in version v5.15.5. The specific commit that introduced the vulnerability is 6a6fabbfa3e8c656ff906ae999fb6856410fa4cd, and it was fixed by commit a51a6da375d82aed5c8f83abd13e7d060421bd48. The vulnerability affects the error handler for UCTX and UMEM, which are responsible for managing memory and resources in the network adapter. An attacker could potentially exploit this vulnerability to cause a DoS condition or escalate privileges. It is important to update to the fixed version of the Linux Kernel to mitigate this vulnerability.
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 v5.15.5 or later. This can be done by downloading the latest stable version of the Linux Kernel from the official repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and following the installation instructions provided. It is important to ensure that the updated version is properly tested and validated in the specific environment before deploying it.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to update the Linux Kernel to the fixed version.
Conclusion
The net/mlx5 package in the Linux Kernel is vulnerable to a DoS and privilege escalation vulnerability in the error handler for UCTX and UMEM. It is crucial to update the Linux Kernel to version v5.15.5 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
net/mlx5 is a package in the Linux Kernel ecosystem that provides support for Mellanox ConnectX network adapters.
UCTX (User Context) and UMEM (User Memory) are components in net/mlx5 that are responsible for managing memory and resources in the network adapter.
This vulnerability can potentially be exploited to cause a denial-of-service (DoS) condition or escalate privileges.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.15.5 or later.
For more information about this vulnerability, you can refer to the source link provided in the database_specific section of the vulnerability details.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Follow Vulert in Google
Get more Vulert vulnerability and dependency-security updates in Google Search and AI results.