CVE-2026-97588

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.

Package Linux Kernel
Published 2026-09-25
Last modified 2026-09-25
Patch available
Yes

Affected versions

Linux kernel versions 6.16 and later are affected. Fixed in 6.18.53, 7.2.7, 7.3-rc3 and their respective stable series.

Affected from
≥ 6.16
Fixed in
✓ 6.18.53 6.18.x ✓ 7.2.7 7.2.x ✓ 7.3-rc3

References

3 total

Frequently asked questions

  • What is CVE-2026-97588?

    CVE-2026-97588 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.16 onward and has been patched in 6.18.53, 7.2.7 and 7.3-rc3. CVE-2026-97588 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-97588?

    Yes. CVE-2026-97588 has been patched. Fixed versions include 6.18.53, 7.2.7 and 7.3-rc3. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-97588 actively exploited?

    No. CVE-2026-97588 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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