CVE-2026-97591 PUBLISHED

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

Assigner: Linux
Reserved: 24.09.2026 Published: 25.09.2026 Updated: 25.09.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from cbbc675506cc4cd93e6f895e7c1f693156f9a95c to 203702f0013f9b7324e8c5facb6cd6e9c0942b13 (excl.)
  • affected from cbbc675506cc4cd93e6f895e7c1f693156f9a95c to bcd7f1f1e2f2882ad206f72425255be105178151 (excl.)
  • affected from cbbc675506cc4cd93e6f895e7c1f693156f9a95c to 330148371401de474b656eaf521861f12ec1a1ce (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.17 is affected
  • unaffected from 0 to 6.17 (excl.)
  • unaffected from 6.18.53 to 6.18.* (incl.)
  • unaffected from 7.2.7 to 7.2.* (incl.)
  • unaffected from 7.3-rc3 to * (incl.)

References