CVE-2026-93155 (GCVE-0-2026-93155)
Vulnerability from cvelistv5
Published
2026-09-17 16:11
Modified
2026-10-30 12:36
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: keembay - Fix AEAD unregister count in error path register_aes_algs() registers the AEAD algorithms before registering the skcipher algorithms. If skcipher registration fails, the function unwinds the earlier AEAD registration with crypto_engine_unregister_aeads(), but it passes ARRAY_SIZE(algs), which is the skcipher table size. Use ARRAY_SIZE(algs_aead) for the AEAD unwind path so the unregister helper iterates over the same table that was registered. Also clarify the nearby comment: the crypto registration helpers clean up algorithms registered within the same call, while this function must still unwind earlier successful registration steps.
References
Impacted products
Vendor Product Version
Linux Linux Version: 88574332451380f4b51f6ca88ab9810e714bfb9b
Version: 88574332451380f4b51f6ca88ab9810e714bfb9b
Version: 88574332451380f4b51f6ca88ab9810e714bfb9b
Version: 88574332451380f4b51f6ca88ab9810e714bfb9b
Version: 88574332451380f4b51f6ca88ab9810e714bfb9b
Version: 88574332451380f4b51f6ca88ab9810e714bfb9b
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/intel/keembay/keembay-ocs-aes-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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            }
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/intel/keembay/keembay-ocs-aes-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.191",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: keembay - Fix AEAD unregister count in error path\n\nregister_aes_algs() registers the AEAD algorithms before registering the\nskcipher algorithms.  If skcipher registration fails, the function unwinds\nthe earlier AEAD registration with crypto_engine_unregister_aeads(), but it\npasses ARRAY_SIZE(algs), which is the skcipher table size.\n\nUse ARRAY_SIZE(algs_aead) for the AEAD unwind path so the unregister helper\niterates over the same table that was registered.  Also clarify the nearby\ncomment: the crypto registration helpers clean up algorithms registered\nwithin the same call, while this function must still unwind earlier\nsuccessful registration steps."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:36:09.918Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ccfaccc35e5a911ec1748291ea505e03b1ac03d9"
        },
        {
          "url": "https://git.kernel.org/stable/c/27ec91c29ee155cc507b2f56221fc6fab65dbb51"
        },
        {
          "url": "https://git.kernel.org/stable/c/5607b101d86cbee8dd1ffab784495c880ca73383"
        },
        {
          "url": "https://git.kernel.org/stable/c/5bbb726d27ff6dff750264e51aa665538394d0f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/a3217fe7998622728a53dff405615e0971949eaf"
        },
        {
          "url": "https://git.kernel.org/stable/c/e264401ce4776a288524e5b87593d4d864147115"
        }
      ],
      "title": "crypto: keembay - Fix AEAD unregister count in error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93155",
    "datePublished": "2026-09-17T16:11:50.792Z",
    "dateReserved": "2026-09-17T16:02:15.089Z",
    "dateUpdated": "2026-10-30T12:36:09.918Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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