{
  "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-2022-50756",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50756",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-24T13:05:49.635Z",
    "updatedAt": "2026-10-15T21:41:23.908Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "nvme-pci: fix mempool alloc size",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix mempool alloc size\n\nConvert the max size to bytes to match the units of the divisor that\ncalculates the worst-case number of PRP entries.\n\nThe result is used to determine how many PRP Lists are required. The\ncode was previously rounding this to 1 list, but we can require 2 in the\nworst case. In that scenario, the driver would corrupt memory beyond the\nsize provided by the mempool.\n\nWhile unlikely to occur (you'd need a 4MB in exactly 127 phys segments\non a queue that doesn't support SGLs), this memory corruption has been\nobserved by kfence.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "943e942e6266f22babee5efeb00f8f672fbff5bd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dfb6d54893d544151e7f480bc44cfe7823f5ad23"
            },
            {
              "version": "943e942e6266f22babee5efeb00f8f672fbff5bd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9141144b37f30e3e7fa024bcfa0a13011e546ba9"
            },
            {
              "version": "943e942e6266f22babee5efeb00f8f672fbff5bd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e1777b4286e526c58b4ee699344b0ad85aaf83a0"
            },
            {
              "version": "943e942e6266f22babee5efeb00f8f672fbff5bd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b1814724e0d7162bdf4799f2d565381bc2251c63"
            },
            {
              "version": "943e942e6266f22babee5efeb00f8f672fbff5bd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c89a529e823d51dd23c7ec0c047c7a454a428541"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.18"
            },
            {
              "version": "5.10.163",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.87",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.0.17",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}