CVE-2025-39973

Advisory lineage Upstream: 0 Downstream: 129
Deferred
Published: 15 Oct 2025, 07:55
Last modified:11 May 2026, 21:40

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
0.06% LOW
0% probability +0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 Oct 2025, 07:55
Published
Vulnerability first disclosed
11 May 2026, 21:40
Last Modified
Vulnerability information updated

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.

EPSS Trends

Current EPSS score: 0.06%• Percentile: 20%

Affected Systems

  • linux•linux

    ≥ 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 0543d40d6513cdf1c7882811086e59a6455dfe97 | ≥ 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 7d749e38dd2b7e8a80da2ca30c93e09de95bfcf9 | ≥ 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 45a7527cd7da4cdcf3b06b5c0cb1cae30b5a5985 | ≥ 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < d3b0d3f8d11fa957171fbb186e53998361a88d4e | ≥ 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < c0c83f4cd074b75cecef107bfc349be7d516c9c4 | ≥ 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 05fe81fb9db20464fa532a3835dc8300d68a2f84 | ≥ 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < afec12adab55d10708179a64d95d650741e60fe0 | ≥ 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 55d225670def06b01af2e7a5e0446fbe946289e8 | 3.12

References (8)