{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98222",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-98222"
  ],
  "published": "2026-10-06T08:47:10Z",
  "summary": "KEYS: encrypted: fix integer overflow of datablob_len",
  "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->datalen 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.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98222"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1e720f63dbafc093a8f5d519f05b67724993edd4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cca38f2102a4cd35eda8d48950df4817b4b24757"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8697c431e297eb0d0ab13dda6bc172b48a34f05c"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-06T08:47:10Z"
  }
}