{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-53684",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-53684"
  ],
  "published": "2025-10-07T15:23:56Z",
  "summary": "xfrm: Zero padding when dumping algos and encap",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: Zero padding when dumping algos and encap\n\nWhen copying data to user-space we should ensure that only valid\ndata is copied over.  Padding in structures may be filled with\nrandom (possibly sensitve) data and should never be given directly\nto user-space.\n\nThis patch fixes the copying of xfrm algorithms and the encap\ntemplate in xfrm_user so that padding is zeroed.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.21-1+rpt1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v6",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7l",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v8",
            "binary_version": "1:6.1.21-1+rpt1"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.21-1+rpt1": {
            "linux_commit": "0afb5e98488aed7017b9bf321b575d0177feb7ed",
            "upstream_version": "6.1.21",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.23"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-53684"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0725daaa9a879388ed312110f62dbd5ea2d75f8f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5218af4ad5d8948faac19f71583bcd786c3852df"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1a351e26cc010d6991fbbd5701ac16581372e26f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8222d5910dae08213b6d9d4bc9a7f8502855e624"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}