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

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Summary

CVECVE-2026-97591
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:10 UTC
Updated2026-09-25 11:17:10 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.001980000 probability, percentile 0.085850000 (date 2026-09-27)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected cbbc675506cc4cd93e6f895e7c1f693156f9a95c 203702f0013f9b7324e8c5facb6cd6e9c0942b13 git Not specified
CNA Linux Linux affected cbbc675506cc4cd93e6f895e7c1f693156f9a95c bcd7f1f1e2f2882ad206f72425255be105178151 git Not specified
CNA Linux Linux affected cbbc675506cc4cd93e6f895e7c1f693156f9a95c 330148371401de474b656eaf521861f12ec1a1ce git Not specified
CNA Linux Linux affected 6.17 Not specified
CNA Linux Linux unaffected 6.17 semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/330148371401de474b656eaf521861f12ec1a1ce 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bcd7f1f1e2f2882ad206f72425255be105178151 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/203702f0013f9b7324e8c5facb6cd6e9c0942b13 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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