CVE-2026-97590 (GCVE-0-2026-97590)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:22 – Updated: 2026-10-19 09:09
VLAI
Title
s390/crypto: Fix missing scrub of temp buffers with PAES algorithm
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix missing scrub of temp buffers with PAES algorithm In function ctr_paes_do_crypt() there is a buffer used to process remaining bytes < AES_BLOCK_SIZE. This buffer was not scrubbed and thus could lead to expose of unwanted data. Rework the code to explicitly scrub the buffer at the end of the function to avoid exposure of maybe sensitive data. In function __xts_2keys_prep_param() change the existing scrub to clean the whole param block instead of just the key field.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6996 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 , < 7d1456d54b3c784cc2917c219a528092cefe30cd (git)
Affected: 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 , < d7159d2132e9aa51af7acb51c6742d9b30f987b3 (git)
Affected: 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 , < 19a218b46b2471d370c11fb52040f36ac8d05d23 (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "arch/s390/crypto/paes_s390.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/crypto: Fix missing scrub of temp buffers with PAES algorithm\n\nIn function ctr_paes_do_crypt() there is a buffer used to process\nremaining bytes \u003c AES_BLOCK_SIZE. This buffer was not scrubbed and\nthus could lead to expose of unwanted data. Rework the code to\nexplicitly scrub the buffer at the end of the function to avoid\nexposure of maybe sensitive data.\n\nIn function __xts_2keys_prep_param() change the existing scrub to\nclean the whole param block instead of just the key field."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:09:54.100Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "datePublished": "2026-09-25T10:22:08.075Z",
    "dateReserved": "2026-09-24T16:01:01.157Z",
    "dateUpdated": "2026-10-19T09:09:54.100Z",
    "state": "PUBLISHED"
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          }
        ],
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        "lastModified": "2026-10-19T10:17:28.483",
        "metrics": {},
        "published": "2026-09-25T11:17:10.207",
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          {
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      "cve": "CVE-2026-97590",
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      "product_status:known_affected": "77",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: s390/crypto: Fix missing scrub of temp buffers with PAES algorithm",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97590.json",
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-97590.json",
      "version": "2"
    }
  }
}



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