{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7e70cb4978507cf31d76b90e4cfb4c28cad87f0c"
            },
            {
              "fixed": "1e720f63dbafc093a8f5d519f05b67724993edd4"
            },
            {
              "fixed": "a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0"
            },
            {
              "fixed": "cca38f2102a4cd35eda8d48950df4817b4b24757"
            },
            {
              "fixed": "8697c431e297eb0d0ab13dda6bc172b48a34f05c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.38"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.54"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98222.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: encrypted: fix integer overflow of datablob_len\n\nencrypted_key_alloc() stores datablob_len in a u16. It is computed from\nmultiple string and payload lengths. If the result exceeds U16_MAX, the\nassignment truncates the allocation size. KASAN reports a 32760-byte\nslab-out-of-bounds write when __ekey_init() copies the master key\ndescription into the undersized buffer.\n\nThe total payload length stored in key-\u003edatalen is also a u16. Use\ncheck_add_overflow() to reject values that do not fit either destination,\nand use kzalloc_flex() for the flexible-array allocation.",
  "id": "CVE-2026-98222",
  "modified": "2026-10-08T02:30:58.874429249Z",
  "published": "2026-10-06T08:44:57.621Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e720f63dbafc093a8f5d519f05b67724993edd4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8697c431e297eb0d0ab13dda6bc172b48a34f05c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cca38f2102a4cd35eda8d48950df4817b4b24757"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98222.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98222"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "KEYS: encrypted: fix integer overflow of datablob_len"
}