i40e: Fix NULL ptr dereference on VSI filter sync
Summary
GSD-2021-1002314: i40e: Fix NULL ptr dereference on VSI filter sync. Affects Kernel versions >= 41c445ff0f482bb6e6b72dcee9e598e20575f743, < e91e8427a1e1633a0261e3bb0201c836ac5b3890. No fix is published. How to fix ↓
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Background
The i40e package is a driver for Intel Ethernet Connection XL710 devices. It is responsible for managing the network interface and providing communication capabilities for these devices. The vulnerability in question involves a NULL pointer dereference during the synchronization of VSI (Virtual Switch Instance) filters. This vulnerability was introduced in version v3.12 of the Linux Kernel and has been fixed in version v5.15.5.
Vulnerability Detail
The vulnerability occurs when the i40e driver attempts to synchronize VSI filters and encounters a NULL pointer. This can lead to a crash or system instability. 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 the Linux Kernel version v5.15.5.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The i40e package in the Linux Kernel is vulnerable to a NULL pointer dereference during VSI filter synchronization. This vulnerability has been fixed in version v5.15.5 of the Linux Kernel. To mitigate the risk, it is recommended to update the Linux Kernel to the fixed version. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability can range from a system crash to system instability. However, the actual impact and attack plausibility have not been proven yet.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities, including this one.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
The vulnerability was introduced in version v3.12 of the Linux Kernel. All versions between v3.12 and v5.15.4 are affected.
You can find more information about this vulnerability in the GSD-2021-1002314.json file available in the GSD database on GitHub: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/GSD-2021-1002314.json
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