CVE-2025-39973
Last modified
CVE-2025-39973 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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 estimates a 0.20% chance of exploitation in the next 30 days.
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:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 0543d40d6513cdf1c7882811086e59a6455dfe97; >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 7d749e38dd2b7e8a80da2ca30c93e09de95bfcf9; >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 45a7527cd7da4cdcf3b06b5c0cb1cae30b5a5985; >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < d3b0d3f8d11fa957171fbb186e53998361a88d4e; >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < c0c83f4cd074b75cecef107bfc349be7d516c9c4; >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 05fe81fb9db20464fa532a3835dc8300d68a2f84; >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < afec12adab55d10708179a64d95d650741e60fe0; >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd, < 55d225670def06b01af2e7a5e0446fbe946289e8 |
| Linux | Linux | 3.12 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
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