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VULNERABILITIES

CVE-2025-39973 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA: kernel.orgCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://git.kernel.org/stable/c/0543d40d6513cdf1c7882811086e59a6455dfe97 kernel.orgSource CodeVendor
https://git.kernel.org/stable/c/05fe81fb9db20464fa532a3835dc8300d68a2f84 kernel.orgSource CodeVendor
https://git.kernel.org/stable/c/45a7527cd7da4cdcf3b06b5c0cb1cae30b5a5985 kernel.orgSource CodeVendor
https://git.kernel.org/stable/c/55d225670def06b01af2e7a5e0446fbe946289e8 kernel.orgSource CodeVendor
https://git.kernel.org/stable/c/7d749e38dd2b7e8a80da2ca30c93e09de95bfcf9 kernel.orgSource CodeVendor

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

ProductVersions
Linux kernel
All versions

CPE

  • cpe:2.3:o:kernel:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:endpoint_security_linux_threat_prevention:*:*
  • cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*

Remediation

  • Upgrade: linux-55d225670def06b01af2e7a5e0446fbe946289e8.tar.gzmoderate effort
Intel i40e
All versions

CPE

  • cpe:2.3:o:linux:linux_kernel_i40e/i40evf:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-39973
NVD Published Date:
Oct 15, 2025
NVD Last Modified:
Jul 30, 2026
Source:
kernel.org
CVE-2025-39973 Details - Not Deferred