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

Vulnerability from cvelistv5 – Published: 2026-09-25 10:22 – Updated: 2026-09-25 10:22
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.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 , < 7d1456d54b3c784cc2917c219a528092cefe30cd (git)
Affected: 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 , < d7159d2132e9aa51af7acb51c6742d9b30f987b3 (git)
Affected: 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 , < 19a218b46b2471d370c11fb52040f36ac8d05d23 (git)
guessed Create a notification for this product.
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-rc3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/crypto/paes_s390.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7d1456d54b3c784cc2917c219a528092cefe30cd",
              "status": "affected",
              "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
              "versionType": "git"
            },
            {
              "lessThan": "d7159d2132e9aa51af7acb51c6742d9b30f987b3",
              "status": "affected",
              "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
              "versionType": "git"
            },
            {
              "lessThan": "19a218b46b2471d370c11fb52040f36ac8d05d23",
              "status": "affected",
              "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/crypto/paes_s390.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.7",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc3",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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": "2026-09-25T10:22:08.075Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7d1456d54b3c784cc2917c219a528092cefe30cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7159d2132e9aa51af7acb51c6742d9b30f987b3"
        },
        {
          "url": "https://git.kernel.org/stable/c/19a218b46b2471d370c11fb52040f36ac8d05d23"
        }
      ],
      "title": "s390/crypto: Fix missing scrub of temp buffers with PAES algorithm",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97590",
    "datePublished": "2026-09-25T10:22:08.075Z",
    "dateReserved": "2026-09-24T16:01:01.157Z",
    "dateUpdated": "2026-09-25T10:22:08.075Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-97590",
      "date": "2026-09-28",
      "epss": "0.00198",
      "percentile": "0.0857"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "arch/s390/crypto/paes_s390.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "7d1456d54b3c784cc2917c219a528092cefe30cd",
                    "status": "affected",
                    "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "d7159d2132e9aa51af7acb51c6742d9b30f987b3",
                    "status": "affected",
                    "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "19a218b46b2471d370c11fb52040f36ac8d05d23",
                    "status": "affected",
                    "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "arch/s390/crypto/paes_s390.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.16"
                  },
                  {
                    "lessThan": "6.16",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.53",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.7",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3-rc3",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "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."
          }
        ],
        "id": "CVE-2026-97590",
        "lastModified": "2026-09-25T11:17:10.207",
        "metrics": {},
        "published": "2026-09-25T11:17:10.207",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/19a218b46b2471d370c11fb52040f36ac8d05d23"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/7d1456d54b3c784cc2917c219a528092cefe30cd"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d7159d2132e9aa51af7acb51c6742d9b30f987b3"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…