CVE-2026-97589

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix wrong return code to engine in asynch callbacks When crypto_finalize_hash_request() or crypto_finalize_skcipher_request() explicitly completes a request, the do_one_request callback must return 0 to indicate successful handling. Returning a negative error code causes the crypto engine to assume the driver failed to take ownership and triggers a second completion via crypto_request_complete(), resulting in a double completion. This pattern occurs in paes_s390.c 4 times and once in phmac_s390.c. Fixed in phmac_do_one_request() and all four paes do_one_request callbacks (ecb, cbc, ctr, xts) by returning 0 after explicit finalization instead of propagating the error code.

Severity

HIGH

CVSS score

7.0 (v3.1)

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-09-25 11:17:10.103000

Last modified

2026-10-19 10:17:28.363000

View original CVE JSON

{
  "id": "CVE-2026-97589",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-25T11:17:10.103",
  "lastModified": "2026-10-19T10:17:28.363",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/crypto: Fix wrong return code to engine in asynch callbacks\n\nWhen crypto_finalize_hash_request() or\ncrypto_finalize_skcipher_request() explicitly completes a request, the\ndo_one_request callback must return 0 to indicate successful\nhandling. Returning a negative error code causes the crypto engine to\nassume the driver failed to take ownership and triggers a second\ncompletion via crypto_request_complete(), resulting in a double\ncompletion. This pattern occurs in paes_s390.c 4 times and once in\nphmac_s390.c.\n\nFixed in phmac_do_one_request() and all four paes do_one_request\ncallbacks (ecb, cbc, ctr, xts) by returning 0 after explicit\nfinalization instead of propagating the error code."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "arch/s390/crypto/paes_s390.c",
            "arch/s390/crypto/phmac_s390.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
              "lessThan": "972e0d9b7d1d112240ccde1f1be85bf9ffaa1720",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
              "lessThan": "5480291aa848e19e61175abfd457933516db70c6",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "6cd87cb5ef6ca50ae17c371482ceaab1d635e232",
              "lessThan": "ac1481320110b803ab9b79ab4d2ca11a74fc05f2",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "arch/s390/crypto/paes_s390.c",
            "arch/s390/crypto/phmac_s390.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.16",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.16",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.53",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.7",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9
      }
    ]
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5480291aa848e19e61175abfd457933516db70c6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/972e0d9b7d1d112240ccde1f1be85bf9ffaa1720",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ac1481320110b803ab9b79ab4d2ca11a74fc05f2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}