{
  "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-2026-74470",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-74470",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T12:27:07.504Z",
    "updatedAt": "2026-10-16T19:05:47.666Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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": "scsi: scsi_debug: Fix REPORT ZONES alloc_len underflow OOB write",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: scsi_debug: Fix REPORT ZONES alloc_len underflow OOB write\n\nresp_report_zones() sizes the reply buffer from the CDB allocation\nlength. The v3 fix rounds alloc_len up with ALIGN() before deriving the\ndescriptor count:\n\n\trep_max_zones = (ALIGN((u64)alloc_len, RZONES_DESC_HD) -\n\t\t\t RZONES_DESC_HD) >> ilog2(RZONES_DESC_HD);\n\tarr_len = (u64)RZONES_DESC_HD * (rep_max_zones + 1);\n\nFor alloc_len in 0xFFFFFFC1..0xFFFFFFFF, ALIGN() rounds up to\n0x100000000, so arr_len is 4 GB. On 32-bit, kzalloc()'s size_t is 32-bit\nand truncates 0x100000000 to 0; kzalloc(0) returns ZERO_SIZE_PTR, which\npasses the !arr check, and desc = arr + 64 is then dereferenced in the\nloop -> out-of-bounds write / panic.\n\nClamp rep_max_zones to devip->nr_zones. The loop already stops at\nsdebug_capacity (after nr_zones zones), so a report can never hold more\nthan nr_zones descriptors; the clamp does not change the report, it only\nbounds arr_len to (nr_zones + 1) * RZONES_DESC_HD, a real device\nproperty that can never reach 0x100000000.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ebacb44cb2042b90951140eda806bedad23ef554",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7b615fc139e35c81077046df44725c532f7e2404"
            },
            {
              "version": "7db0e0c8190a086ef92ce5bb960836cde49540aa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5d3e1d006bbb543259f9e31824caadbfff6a5465"
            },
            {
              "version": "7db0e0c8190a086ef92ce5bb960836cde49540aa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "49e5b25a0b74dbac595f122e5608fdce2918cc4e"
            },
            {
              "version": "7db0e0c8190a086ef92ce5bb960836cde49540aa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "495058429ca55ab7fcc21977b63b92907ad68066"
            },
            {
              "version": "7db0e0c8190a086ef92ce5bb960836cde49540aa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2047ed09bf13453b7d6f9431b112ec07984dd69b"
            },
            {
              "version": "7db0e0c8190a086ef92ce5bb960836cde49540aa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d6e6da6bc3b53231fac77ffab428da8173ee729c"
            },
            {
              "version": "7db0e0c8190a086ef92ce5bb960836cde49540aa",
              "status": "affected",
              "versionType": "git",
              "lessThan": "93dde0bf2f39a0f9f57fd610aa3201ce5b753433"
            },
            {
              "version": "c4d2d7c935a4ad20e8e726ca10499cefe4537103",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.15.8",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.217"
            },
            {
              "version": "5.10.85",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.11"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.16"
            },
            {
              "version": "5.15.217",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.183",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.151",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.103",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.44",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}