{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-53493",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53493",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-01T11:45:44.939Z",
    "updatedAt": "2026-08-05T09:14:25.393Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "accel/qaic: tighten bounds checking in decode_message()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/qaic: tighten bounds checking in decode_message()\n\nCopy the bounds checking from encode_message() to decode_message().\n\nThis patch addresses the following concerns.  Ensure that there is\nenough space for at least one header so that we don't have a negative\nsize later.\n\n\tif (msg_hdr_len < sizeof(*trans_hdr))\n\nEnsure that we have enough space to read the next header from the\nmsg->data.\n\n\tif (msg_len > msg_hdr_len - sizeof(*trans_hdr))\n\t\treturn -EINVAL;\n\nCheck that the trans_hdr->len is not below the minimum size:\n\n\tif (hdr_len < sizeof(*trans_hdr))\n\nThis minimum check ensures that we don't corrupt memory in\ndecode_passthrough() when we do.\n\n\tmemcpy(out_trans->data, in_trans->data, len - sizeof(in_trans->hdr));\n\nAnd finally, use size_add() to prevent an integer overflow:\n\n\tif (size_add(msg_len, hdr_len) > msg_hdr_len)",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "129776ac2e38231fa9c02ce20e116c99de291666",
              "status": "affected",
              "versionType": "git",
              "lessThan": "57d14cb3bae4619ce2fb5235cb318c3d5d8f53fd"
            },
            {
              "version": "129776ac2e38231fa9c02ce20e116c99de291666",
              "status": "affected",
              "versionType": "git",
              "lessThan": "51b56382ed2a2b03347372272362b3baa623ed1e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.4"
            },
            {
              "version": "6.4.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}