FKIE_CVE-2026-97592

Vulnerability from fkie_nvd - Published: 2026-09-25 11:17 - Updated: 2026-10-19 10:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix missing scrub of temp buffers with AES ctr and gcm algorithm In function ctr_aes_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. When the buffer is used explicitly scrub it at the end of the code block to avoid exposure of maybe sensitive data. In a similar way the function gcm_aes_crypt() hat an error path where the CPACF param block was not scrubbed. Instead of return early now these error paths go to end of function where explicit scrubbing is done. Similar with the buffers which are part of the gcm_sg_walk structs from the variables gw_in and gw_out.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/11eca05d2062032e1f07d56be58ed0b99f4b1d63
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/538f00558db9a66aeff20c36f43692c178a0e0eb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ab772d675a885c3119bf0e79ea9e84756d7657a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8b7c3b6914f19caf648d05726a86af6326d3c2c6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8b90a47c4fba27bb4f2f086611742493629e9696
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/991c875310254a13b3a637bb279379c8c66e842d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a83488cecb35f924b7541306ed84893bb9906196
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e17b85eb8cee90a1200fa5e7806db7ffa08a0608
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/crypto/aes_s390.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "538f00558db9a66aeff20c36f43692c178a0e0eb",
              "status": "affected",
              "version": "cd51e26a3b89706beec64f2d8296cfb1c34e0c79",
              "versionType": "git"
            },
            {
              "lessThan": "6ab772d675a885c3119bf0e79ea9e84756d7657a",
              "status": "affected",
              "version": "a7f580cdb42ec3d53bbb7c4e4335a98423703285",
              "versionType": "git"
            },
            {
              "lessThan": "e17b85eb8cee90a1200fa5e7806db7ffa08a0608",
              "status": "affected",
              "version": "dbc9a791a70ea47be9f2acf251700fe254a2ab23",
              "versionType": "git"
            },
            {
              "lessThan": "991c875310254a13b3a637bb279379c8c66e842d",
              "status": "affected",
              "version": "d68ac38895e84446848b7647ab9458d54cacba3e",
              "versionType": "git"
            },
            {
              "lessThan": "11eca05d2062032e1f07d56be58ed0b99f4b1d63",
              "status": "affected",
              "version": "d07f951903fa9922c375b8ab1ce81b18a0034e3b",
              "versionType": "git"
            },
            {
              "lessThan": "8b90a47c4fba27bb4f2f086611742493629e9696",
              "status": "affected",
              "version": "d07f951903fa9922c375b8ab1ce81b18a0034e3b",
              "versionType": "git"
            },
            {
              "lessThan": "a83488cecb35f924b7541306ed84893bb9906196",
              "status": "affected",
              "version": "d07f951903fa9922c375b8ab1ce81b18a0034e3b",
              "versionType": "git"
            },
            {
              "lessThan": "8b7c3b6914f19caf648d05726a86af6326d3c2c6",
              "status": "affected",
              "version": "d07f951903fa9922c375b8ab1ce81b18a0034e3b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e78f1a43e72daf77705ad5b9946de66fc708b874",
              "versionType": "git"
            },
            {
              "lessThan": "5.10.271",
              "status": "affected",
              "version": "5.10.210",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.222",
              "status": "affected",
              "version": "5.15.149",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.189",
              "status": "affected",
              "version": "6.1.76",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.158",
              "status": "affected",
              "version": "6.6.15",
              "versionType": "semver"
            },
            {
              "lessThan": "6.8",
              "status": "affected",
              "version": "6.7.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/crypto/aes_s390.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "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",
              "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 AES ctr and gcm algorithm\n\nIn function ctr_aes_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. When the buffer is used\nexplicitly scrub it at the end of the code block to avoid exposure of\nmaybe sensitive data.\n\nIn a similar way the function gcm_aes_crypt() hat an error path where\nthe CPACF param block was not scrubbed. Instead of return early now\nthese error paths go to end of function where explicit scrubbing is\ndone. Similar with the buffers which are part of the gcm_sg_walk\nstructs from the variables gw_in and gw_out."
    }
  ],
  "id": "CVE-2026-97592",
  "lastModified": "2026-10-19T10:17:28.697",
  "metrics": {},
  "published": "2026-09-25T11:17:10.423",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/11eca05d2062032e1f07d56be58ed0b99f4b1d63"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/538f00558db9a66aeff20c36f43692c178a0e0eb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6ab772d675a885c3119bf0e79ea9e84756d7657a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8b7c3b6914f19caf648d05726a86af6326d3c2c6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8b90a47c4fba27bb4f2f086611742493629e9696"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/991c875310254a13b3a637bb279379c8c66e842d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a83488cecb35f924b7541306ed84893bb9906196"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e17b85eb8cee90a1200fa5e7806db7ffa08a0608"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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