{
  "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-2026-74378",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-74378",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:58:56.381Z",
    "updatedAt": "2026-10-16T18:55:36.455Z",
    "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/rxe: Fix TOCTOU heap overflow in get_srq_wqe",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Fix TOCTOU heap overflow in get_srq_wqe\n\nget_srq_wqe() reads wqe->dma.num_sge from the shared receive queue\nbuffer, which is mapped into userspace. It validates num_sge against\nmax_sge, but then re-reads the same field to calculate the memcpy\nsize. A concurrent userspace thread can modify num_sge between\nvalidation and use, causing a heap buffer overflow when copying the\nWQE into qp->resp.srq_wqe.\n\nRead num_sge into a local variable and use it for both the bounds\ncheck and the size calculation.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c8db0e5ab0b6c540214c46c56aaac7cbcb0967fe"
            },
            {
              "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e48daa94ad2d406225b73491fc935064716f0ec7"
            },
            {
              "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3cfa2a3adc51b7c57729961a03446962ff10e3d2"
            },
            {
              "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cd19a6345e3727adafafa5954b58b13c92e13b80"
            },
            {
              "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3e07ea9579dc9553d2285c26c2823931358aa3b8"
            },
            {
              "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
              "status": "affected",
              "versionType": "git",
              "lessThan": "02558c86b6b761063e9399e6b939984500327ef1"
            },
            {
              "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b9800d7953d119bcc068c74587d48e4ba0313629"
            },
            {
              "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
              "status": "affected",
              "versionType": "git",
              "lessThan": "22b8fbded65b8c441b634a185f8da67657df6c50"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.8"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}