{
  "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-2026-64580",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64580",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-05T08:09:34.946Z",
    "updatedAt": "2026-10-19T20:48:42.908Z",
    "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": "xfrm6: clear dst.dev on error to avoid double netdev_put in xfrm6_fill_dst()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm6: clear dst.dev on error to avoid double netdev_put in xfrm6_fill_dst()\n\nOn the error path where in6_dev_get(dev) returns NULL, xfrm6_fill_dst()\nreleases the device reference with netdev_put() but leaves\nxdst->u.dst.dev set. dst_destroy() later calls netdev_put(dst->dev)\nagain, so the same net_device reference is released twice, underflowing\nits refcount (ref_tracker WARNING + \"unregister_netdevice: waiting for\n<dev> to become free\").\n\nClear xdst->u.dst.dev after the netdev_put(), the same way the XFRM\ndevice-offload paths xfrm_dev_state_add() and xfrm_dev_policy_add() in\nnet/xfrm/xfrm_device.c NULL ->dev when releasing the reference on error.\n\n  ref_tracker: reference already released.\n  ref_tracker: allocated in:\n   xfrm6_fill_dst (net/ipv6/xfrm6_policy.c:86)\n   ...\n   udpv6_sendmsg (net/ipv6/udp.c:1696)\n   ...\n  ref_tracker: freed in:\n   xfrm6_fill_dst (net/ipv6/xfrm6_policy.c:90)\n   ...\n  WARNING: lib/ref_tracker.c:322 at ref_tracker_free+0x58b/0x780\n   dst_destroy (net/core/dst.c:115)\n   rcu_core\n   handle_softirqs\n   ...",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "84c4a9dfbf430861e7588d95ae3ff61535dca351",
              "status": "affected",
              "versionType": "git",
              "lessThan": "97e032e5733e49471fb73de117ea2ac1ac7c479a"
            },
            {
              "version": "84c4a9dfbf430861e7588d95ae3ff61535dca351",
              "status": "affected",
              "versionType": "git",
              "lessThan": "df6856c2dda9187601d29b5fbd7a81b3b178cedf"
            },
            {
              "version": "84c4a9dfbf430861e7588d95ae3ff61535dca351",
              "status": "affected",
              "versionType": "git",
              "lessThan": "43de8a49335e611adb271bbd52e84dfbc11fc185"
            },
            {
              "version": "84c4a9dfbf430861e7588d95ae3ff61535dca351",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ff636d7b7cba6dea82ecf580415ea57f2c1a11b6"
            },
            {
              "version": "84c4a9dfbf430861e7588d95ae3ff61535dca351",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e078da1b4e11390cff3201c19a9a1fe70c5b934f"
            },
            {
              "version": "84c4a9dfbf430861e7588d95ae3ff61535dca351",
              "status": "affected",
              "versionType": "git",
              "lessThan": "136992de9bb91871084ae52d172610541c76e4d2"
            },
            {
              "version": "a7e22d0c0e81dde129a51ee413644124f4b59954",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "01b0d887f67a388fb2a658ee2bdd74e5ba146818",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "a98124aac0b5adc5de8ae54f11322781cb4d85c3",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "e27b7bee743d921f037b1da6f071237345bef7c1",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "3.0.79",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.1"
            },
            {
              "version": "3.2.46",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.3"
            },
            {
              "version": "3.4.46",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.5"
            },
            {
              "version": "3.9.3",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.10"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.10"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}