{
  "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-2026-90435",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-90435",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-17T16:09:54.399Z",
    "updatedAt": "2026-10-19T09:03:41.405Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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/mlx5: Fix integer overflow of user QP buffer size",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix integer overflow of user QP buffer size\n\nset_user_buf_size() computes the QP buffer size by left-shifting the\nuser-supplied rq.wqe_cnt and rq.wqe_shift values as signed integers.\nA sufficiently large rq.wqe_cnt causes signed integer overflow, which\nis undefined behavior, and yields a small or negative buf_size, causing\nib_umem_get() to map a buffer smaller than the hardware will actually\nwrite into.\n\nReplace the shifts and addition with check_shl_overflow() and\ncheck_add_overflow(), rejecting invalid user inputs.\n\nMoreover, guard the identical shift computing qp->sq.offset in\n_create_user_qp() before set_user_buf_size() is reached.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ccce6b7ef1d7efc59ccba3421e1339c6e63a3d20"
            },
            {
              "version": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d99622e40aaa910ade681dfd4dc0fa240a011331"
            },
            {
              "version": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c845e5e05140ea1bc64a5b1107942d93c876034d"
            },
            {
              "version": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "42fb8aefffff5b458aaa66803364a16e0ea44129"
            },
            {
              "version": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d7fa2ff72ad1861eac194a4e0075d504ba8c246e"
            },
            {
              "version": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5b6cfc6d7ff0959dd9766fdc24286a253b59ca77"
            },
            {
              "version": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f917707f0de0832b8ab582391b1f64e549995c6c"
            },
            {
              "version": "e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dec47e4b0fe34afdf38caa72b4408ba95502e5de"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.11"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.52",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}