{
  "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-2026-43502",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-43502",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-21T12:17:50.444Z",
    "updatedAt": "2026-10-15T01:19:32.714Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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": "net/rds: handle zerocopy send cleanup before the message is queued",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: handle zerocopy send cleanup before the message is queued\n\nA zerocopy send can fail after user pages have been pinned but before\nthe message is attached to the sending socket.\n\nThe purge path currently infers zerocopy state from rm->m_rs, so an\nunqueued message can be cleaned up as if it owned normal payload pages.\nHowever, zerocopy ownership is really determined by the presence of\nop_mmp_znotifier, regardless of whether the message has reached the\nsocket queue.\n\nCapture op_mmp_znotifier up front in rds_message_purge() and use it as\nthe cleanup discriminator. If the message is already associated with a\nsocket, keep the existing completion path. Otherwise, drop the pinned\npage accounting directly and release the notifier before putting the\npayload pages.\n\nThis keeps early send failure cleanup consistent with the zerocopy\nlifetime rules without changing the normal queued completion path.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e9aefdc5c53fe9aed108c14e3d155710a1bb14c9"
            },
            {
              "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "46662f7dc59475995609bf3e9d27eb36f4acf26f"
            },
            {
              "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1e262db7675e27f42c3f3f47d6011855f4454f24"
            },
            {
              "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "21d70744e6d3bbf9293aa1ee6fba7c53ad75275e"
            },
            {
              "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3abc8983b2bae3f487f77d9da5527d7d6b210d46"
            },
            {
              "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "14ef6fd18db2494098b21e0471bf27a1d8e9993e"
            },
            {
              "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0f5c185fc79a59ee9991234dd6d2a3e5afa6e75b"
            },
            {
              "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "44b550d88b267320459d518c0743a241ab2108fa"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.17",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.17"
            },
            {
              "version": "5.10.258",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.140",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.88",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.30",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}