Vulnerability Description
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.
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/0543d40d6513cdf1c7882811086e59a6455dfe97
- https://git.kernel.org/stable/c/05fe81fb9db20464fa532a3835dc8300d68a2f84
- https://git.kernel.org/stable/c/45a7527cd7da4cdcf3b06b5c0cb1cae30b5a5985
- https://git.kernel.org/stable/c/55d225670def06b01af2e7a5e0446fbe946289e8
- https://git.kernel.org/stable/c/7d749e38dd2b7e8a80da2ca30c93e09de95bfcf9
- https://git.kernel.org/stable/c/afec12adab55d10708179a64d95d650741e60fe0
- https://git.kernel.org/stable/c/c0c83f4cd074b75cecef107bfc349be7d516c9c4
- https://git.kernel.org/stable/c/d3b0d3f8d11fa957171fbb186e53998361a88d4e
FAQ
What is CVE-2025-39973?
CVE-2025-39973 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...
How severe is CVE-2025-39973?
CVE-2025-39973 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-39973?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.