{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-21927",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-21927"
  ],
  "published": "2025-04-01T15:40:16Z",
  "summary": "nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()\n\nnvme_tcp_recv_pdu() doesn't check the validity of the header length.\nWhen header digests are enabled, a target might send a packet with an\ninvalid header length (e.g. 255), causing nvme_tcp_verify_hdgst()\nto access memory outside the allocated area and cause memory corruptions\nby overwriting it with the calculated digest.\n\nFix this by rejecting packets with an unexpected header length.",
  "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-2025-21927"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T12:19:11Z"
  }
}