{
  "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-2026-68335",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68335",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-10T12:03:11.547Z",
    "updatedAt": "2026-10-19T21:09:05.269Z",
    "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": "rds: drop incoming messages that cross network namespace boundaries",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nrds: drop incoming messages that cross network namespace boundaries\n\nrds_find_bound() looks up the destination socket using a global\nrhashtable keyed solely on (addr, port, scope_id).  Network namespaces\nare not part of the key, so a sender in netns A can deliver an incoming\nmessage (inc) to a socket that lives in a different netns B.\n\nWhen this happens, inc->i_conn points to an rds_connection whose c_net\nis netns A, but the receiving rs lives in netns B.  Once the child\nprocess that created netns A exits, cleanup_net() calls\nrds_loop_exit_net() -> rds_loop_kill_conns() -> rds_conn_destroy(),\nfreeing that connection.  If the survivor socket in netns B still holds\nthe inc, any subsequent dereference of inc->i_conn is a use-after-free.\n\nThere are two dangerous sites in rds_clear_recv_queue():\n  1. inc->i_conn->c_lcong (offset 88 of freed rds_connection, size 200)\n     read via rds_recv_rcvbuf_delta() -- confirmed by KASAN.\n  2. inc->i_conn->c_trans->inc_free(inc) (function pointer at offset 80)\n     called via rds_inc_put() when the inc refcount reaches zero -- same\n     race window, potential call-through-freed-object primitive.\n\nThe bug is reachable from unprivileged user namespaces\n(CLONE_NEWUSER + CLONE_NEWNET), available since Linux 3.8.\n\nFix this by rejecting the delivery in rds_recv_incoming() when the\nsocket returned by rds_find_bound() belongs to a different network\nnamespace than the connection that carried the message.  Use the\nexisting rds_conn_net() / sock_net() helpers and net_eq() for the\ncomparison.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c809195f5523dd4d09403bbb1c9732d548aa0d1e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "742ff6f02545212e991cd8b45011e40d2c2ef25a"
            },
            {
              "version": "c809195f5523dd4d09403bbb1c9732d548aa0d1e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "abff41fd928328bbf3dda1140beb2e61fa424ccd"
            },
            {
              "version": "c809195f5523dd4d09403bbb1c9732d548aa0d1e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "03c574112e5d066df0ddce36d7438e850bcf3050"
            },
            {
              "version": "c809195f5523dd4d09403bbb1c9732d548aa0d1e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1e2e2d9806944fe485824d617c8b7c78116c22db"
            },
            {
              "version": "c809195f5523dd4d09403bbb1c9732d548aa0d1e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cfb3ce07b705e486e022a2f2b1242b48f13981ff"
            },
            {
              "version": "c809195f5523dd4d09403bbb1c9732d548aa0d1e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9591042533140dfe6608d9344806d567dcd39d02"
            },
            {
              "version": "c809195f5523dd4d09403bbb1c9732d548aa0d1e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0f8690e3869109cd5803ccb400889d20a0b54e0e"
            },
            {
              "version": "c809195f5523dd4d09403bbb1c9732d548aa0d1e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5521ae71e32a8069ed4ca6e792179dc57bc43ab2"
            },
            {
              "version": "c827073c95fde388bc65fe5227f944eaf859b9f0",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.17.19",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.18"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.18"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}