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CVE-2025-40217pidfs: validate extensible ioctls

Description

In the Linux kernel, the following vulnerability has been resolved: pidfs: validate extensible ioctls Validate extensible ioctls stricter than we do now.

Timeline

  1. ID reserved

    By Linux

  2. · 8 months later

    Published

  3. · 5 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.

EPSS (exploitation in 30 days)
0.18% · top 92% of all CVEs (13 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

  • Linux · Linux

    • affected 5b08bd408534bfb3a7cf5778da5b27d4e4fffe12 – < bf0fbf5e8b0aff8a4a0fb35e32b10083baa83c04
    • affected 5b08bd408534bfb3a7cf5778da5b27d4e4fffe12 – < 3c17001b21b9f168c957ced9384abe969019b609

  • Linux · Linux

    • affected 6.11
    • unaffected < 6.11
    • unaffected 6.17.4 – ≤ 6.17.*
    • unaffected 6.18 – ≤ *

References

References2

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .