cvedb.io
CVE-2025-39973
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2025-10-15T08:15:35.007 · Last modified 2026-07-30T06:24:03.340

Summary

In the Linux kernel, the following vulnerability has been resolved: i40e: add validation for ring_len param The `ring_len` parameter provided by the virtual function (VF) is assigned directly to the hardware memory context (HMC) without any validation. To address this, introduce an upper boundary check for both Tx and Rx queue lengths. The maximum number of descriptors supported by the hardware is 8k-32. Additionally, enforce alignment constraints: Tx rings must be a multiple of 8, and Rx rings must be a multiple of 32.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.