i40e: Fix NULL ptr dereference on VSI filter sync
Summary
UVI-2021-1002282: i40e: Fix NULL ptr dereference on VSI filter sync. Affects Kernel versions >= 41c445ff0f482bb6e6b72dcee9e598e20575f743, < f866513ead4370402428ef724b03c3312295c178. No fix is published. How to fix ↓
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Background
The i40e package is a network driver for Intel Ethernet 700 Series devices. It is responsible for managing the communication between the operating system and the network hardware. The vulnerability in question involves a NULL pointer dereference during the synchronization of the VSI (Virtual Station Interface) filter. This vulnerability was introduced in version v3.12 of the Linux Kernel and affects all subsequent versions until it was fixed in v5.10.82.
Vulnerability Detail
The vulnerability occurs when the i40e driver attempts to synchronize the VSI filter and encounters a NULL pointer. This can lead to a system crash or other unpredictable behavior. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in Linux Kernel version v5.10.82.
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.
Conclusion
The i40e package in the Linux Kernel is vulnerable to a NULL pointer dereference during VSI filter synchronization. This vulnerability can result in system crashes or other unexpected behavior. It is crucial to update the Linux Kernel to version v5.10.82 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The i40e package is a network driver for Intel Ethernet 700 Series devices. It facilitates the communication between the operating system and the network hardware.
A NULL pointer dereference occurs when a program attempts to access or manipulate data using a pointer that points to a NULL (empty) memory address. This can lead to crashes or other unexpected behavior.
The impact of this vulnerability includes potential system crashes or unpredictable behavior. However, the actual impact and attack plausibility have not been proven yet.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.82 or later. This can be done by downloading the latest stable version of the Linux Kernel from the official repository and following the installation instructions provided.
No specific workaround has been mentioned for this vulnerability.
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