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CVE-2026-97591s390/crypto: Fix handling of EBUSY in PHMAC when req is pushed to crypto engine

Description

In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix handling of EBUSY in PHMAC when req is pushed to crypto engine When a request is transferred to the engine via crypto_transfer_hash_request_to_engine() there are two return codes signaling a successful transfer: EINPROGRESS and EBUSY. However the correct handling of EBUSY was missing and has been added as a return code indicating a successful transfer to the crypto engine.

Timeline

  1. ID reserved

    By Linux

  2. · 1 day later

    Published

  3. · 24 days 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: Received.

EPSS (exploitation in 30 days)
0.20% · top 90% of all CVEs (12 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 cbbc675506cc4cd93e6f895e7c1f693156f9a95c – < 203702f0013f9b7324e8c5facb6cd6e9c0942b13
    • affected cbbc675506cc4cd93e6f895e7c1f693156f9a95c – < bcd7f1f1e2f2882ad206f72425255be105178151
    • affected cbbc675506cc4cd93e6f895e7c1f693156f9a95c – < 330148371401de474b656eaf521861f12ec1a1ce

  • Linux · Linux

    • affected 6.17
    • unaffected < 6.17
    • unaffected 6.18.53 – ≤ 6.18.*
    • unaffected 7.2.7 – ≤ 7.2.*
    • unaffected 7.3 – ≤ *

References

References3

Sources

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

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Record last updated .