---
id: CVE-2026-97588
title: |-
  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_f…
summary: |-
  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_f…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 <
    f6b263679aa72ad2e534bf93db55f2589549a40e
  - >-
    Linux >= 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 <
    e267bd142664a181474112392aeaa8b3d4b12f2e
  - >-
    Linux >= 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 <
    7a08507ea5b4d06ad8d269287913573f34467565
  - Linux 6.16
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T11:17:09.990'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97588'
references:
  - url: 'https://git.kernel.org/stable/c/7a08507ea5b4d06ad8d269287913573f34467565'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e267bd142664a181474112392aeaa8b3d4b12f2e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f6b263679aa72ad2e534bf93db55f2589549a40e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T11:06:38.907Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.