CVE-2025-39972
In the Linux kernel, the following vulnerability has been resolved: i40e: fix idx validation in i40e_validate_queue_map Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_validate_queue_map().
Affected versions
Linux kernel versions
4.17
and later are affected. Fixed in
5.4.300,
5.10.245,
5.15.194,
6.1.155,
6.6.109,
6.12.50,
6.16.10,
6.17
and their respective stable series.
References
The following references provide additional information about CVE-2025-39972 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/34dfac0c904829967d500c51f216916ce1452957
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PatchKernel patch commithttps://git.kernel.org/stable/c/4d5e804a9e19b639b18fd13664dbad3c03c79e61
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PatchKernel patch commithttps://git.kernel.org/stable/c/50a1e2f50f6c22b93b94eb8d168a1be3c05bf5cd
Frequently asked questions
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What is CVE-2025-39972?
CVE-2025-39972 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.17 onward and has been patched in 5.4.300, 5.10.245, 5.15.194 and others. CVE-2025-39972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-39972?
Yes — CVE-2025-39972 has been patched. Fixed versions include 5.4.300, 5.10.245, 5.15.194 and others. If you are running Linux kernel 4.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-39972 actively exploited?
No — CVE-2025-39972 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.