{
  "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-2026-74390",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-74390",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:59:04.479Z",
    "updatedAt": "2026-10-16T19:05:40.715Z",
    "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": "RDMA/irdma: Fix out-of-bounds write in irdma_copy_user_pgaddrs",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix out-of-bounds write in irdma_copy_user_pgaddrs\n\nThe irdma_copy_user_pgaddrs function loops through all of the umem DMA\nblocks to populate the PBLEs and will stop when either the last DMA\nblock is reached or palloc->total_cnt is reached. The issue is that\nthe logic for checking palloc->total_cnt would only work for non-zero\nvalues.\n\nWhen irdma_setup_pbles is called with lvl==0, it\ncalls irdma_copy_user_pgaddrs with palloc->total_cnt==0, which means\nthe only way to break out of the loop is to reach the last umem DMA\nblock, which means it could end up going beyond the fixed size of 4\niwmr->pgaddrmem array that is used in the lvl==0 case.\n\nIn the case of QP/CQ/SRQ rings, the value of lvl is determined by a\nseparate input (for example, req.cq_pages in the case of a CQ). So,\nwe must perform explicit checking to ensure we don't overflow the\npgaddrmem array if the user provides a umem that consists of more\nblocks than their provided req.cq_pages.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4780f58672ee6328accd54a95f9c00683477e499"
            },
            {
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "79a20a8e201a779224b4bf115250a7713bde72c0"
            },
            {
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9f8f0d2099e3de1194e37dc933ae0c4206b09aaf"
            },
            {
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "192a3be0e3759daa24af2841208b074ca6dbaabc"
            },
            {
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "424d51d33c7541a86934067c2c0538124687fc90"
            },
            {
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "abd27a977b419d584efa659488c22d2306987b29"
            },
            {
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5ebb3ed757be3e04cf803026004aa0beaeb13e9b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.14"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.97",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}