{
  "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-2026-68397",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68397",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-10T12:04:16.772Z",
    "updatedAt": "2026-10-19T21:09:08.287Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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/iucv: take a reference on the socket found in afiucv_hs_rcv()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/iucv: take a reference on the socket found in afiucv_hs_rcv()\n\nafiucv_hs_rcv() looks up the destination socket under iucv_sk_list.lock,\ndrops the lock, and then passes the socket to the afiucv_hs_callback_*()\nhandlers without holding a reference. AF_IUCV sockets are not\nRCU-protected and are freed synchronously by iucv_sock_kill() ->\nsock_put(), so a concurrent close can free the socket in the window\nbetween read_unlock() and the handler, which then dereferences freed\nmemory (for example sk->sk_data_ready() in afiucv_hs_callback_syn()).\n\nTake a reference with sock_hold() while the socket is still on the list\nand release it with sock_put() once the handler has run.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3881ac441f642d56503818123446f7298442236b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5739be5c19495d709d902a2912c9102ce78740d5"
            },
            {
              "version": "3881ac441f642d56503818123446f7298442236b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bc6c6e546ffff8865daaeb622ef348c2d481e80f"
            },
            {
              "version": "3881ac441f642d56503818123446f7298442236b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e3e0679fc950191aff8f27fa78abcfc2462cff4a"
            },
            {
              "version": "3881ac441f642d56503818123446f7298442236b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4dc0e63abf8bc7ba8892e617c1fb8b204361e022"
            },
            {
              "version": "3881ac441f642d56503818123446f7298442236b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1801cb20a5025a787d6853e19c38db138344b4b4"
            },
            {
              "version": "3881ac441f642d56503818123446f7298442236b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c75a950e77356e526672cba4584080c6c8b793b6"
            },
            {
              "version": "3881ac441f642d56503818123446f7298442236b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5595ea59cdf29182cf6a270cacc1426c57b603de"
            },
            {
              "version": "3881ac441f642d56503818123446f7298442236b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4fa349156043dc119721d067329714179f501749"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.2"
            },
            {
              "version": "5.10.265",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.216",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.183",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.148",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}