Riskcovery

CVE-2026-97588

s390/crypto: Map EBUSY to EIO when key conversion fails repeatedly

State
Published
Severity
Not scored
Published
Sep 25, 2026
Updated
Oct 19, 2026
Reserved
Sep 24, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

s390/crypto: Map EBUSY to EIO when key conversion fails repeatedly

When hardware persistently returns -EBUSY after exhausting retries, the error propagates to crypto_finalize_*_request(). The crypto API's completion wrapper treats -EBUSY as a queueing status and swallows it, preventing the completion callback from firing. This causes callers using crypto_wait_req() to block indefinitely.

Translate persistent -EBUSY to -EIO after retry exhaustion to ensure proper error propagation and callback invocation.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 to before f6b263679aa72ad2e534bf93db55f2589549a40eAffected
  • 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 to before e267bd142664a181474112392aeaa8b3d4b12f2eAffected
  • 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 to before 7a08507ea5b4d06ad8d269287913573f34467565Affected
LinuxLinux
  • 6.16Affected
  • before 6.16Not affected
  • 6.18.53 through 6.18.*Not affected
  • 7.2.7 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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