CVE-2025-39973High· 8.8▾ TwilightIn 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) withou…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd < 0543d40d6513cdf1c7882811086e59a6455dfe97Linux >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd < 7d749e38dd2b7e8a80da2ca30c93e09de95bfcf9Linux >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd < 45a7527cd7da4cdcf3b06b5c0cb1cae30b5a5985Linux >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd < d3b0d3f8d11fa957171fbb186e53998361a88d4eLinux >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd < c0c83f4cd074b75cecef107bfc349be7d516c9c4Linux >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd < 05fe81fb9db20464fa532a3835dc8300d68a2f84Linux >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd < afec12adab55d10708179a64d95d650741e60fe0Linux >= 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd < 55d225670def06b01af2e7a5e0446fbe946289e8Linux 3.12Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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