{
  "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-2026-64563",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64563",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-04T06:23:22.601Z",
    "updatedAt": "2026-10-19T20:48:41.938Z",
    "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": "rhashtable: clear stale iter->p on table restart",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nrhashtable: clear stale iter->p on table restart\n\nrhashtable_walk_start_check() has two restart paths when resuming a walk.\nWhen iter->walker.tbl is valid, it re-validates iter->p against the table\nand sets iter->p = NULL if the object is gone.  When iter->walker.tbl is\nNULL (table was freed during resize), it resets slot and skip but forgets\nto clear iter->p.\n\nrhashtable_walk_next() then dereferences the stale iter->p, reading\nfreed memory.  This is a use-after-free.\n\nAny caller that does multi-fragment rhashtable walks across\nwalk_stop/walk_start boundaries is affected.  Concrete cases include\nnetlink_diag (__netlink_diag_dump in net/netlink/diag.c) and TIPC\n(tipc_nl_sk_walk in net/tipc/socket.c).\n\nCrash stack (netlink_diag):\n  BUG: KASAN: slab-use-after-free in rhashtable_walk_next+0x365/0x3c0\n  Read of size 8 at addr ffff88801a9d2438 (freed kmalloc-2k, offset 1080)\n  Call Trace:\n   rhashtable_walk_next+0x365/0x3c0 (lib/rhashtable.c:1016)\n   __netlink_diag_dump+0x160/0x760 (net/netlink/diag.c:122)\n   netlink_diag_dump+0xc2/0x240\n   netlink_dump+0x5bc/0x1270\n   netlink_recvmsg+0x7a3/0x980\n   sock_recvmsg+0x1bc/0x200\n   __sys_recvfrom+0x1d4/0x2c0",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5d240a8936f6a1d3ece06701e8c4d830a2eca8a8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba510b5e9fe396497d31162acb579f210adfe6c8"
            },
            {
              "version": "5d240a8936f6a1d3ece06701e8c4d830a2eca8a8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a0406c40c6638c5ae50257db6297b2fba6c9ba16"
            },
            {
              "version": "5d240a8936f6a1d3ece06701e8c4d830a2eca8a8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0955b65c2b47c30b439e2cf1b1e375073aa0413a"
            },
            {
              "version": "5d240a8936f6a1d3ece06701e8c4d830a2eca8a8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c39643ad99fea749be50615550e8f0e6d6e60694"
            },
            {
              "version": "5d240a8936f6a1d3ece06701e8c4d830a2eca8a8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "042fda5c088015f18838e5c692659a7be60aeb26"
            },
            {
              "version": "5d240a8936f6a1d3ece06701e8c4d830a2eca8a8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3ff7c1dbf722cf3fa538672452ba182318e0fcc3"
            },
            {
              "version": "5d240a8936f6a1d3ece06701e8c4d830a2eca8a8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4169d9fb92f313ff8e7e83d733c1ecdcc93eebd3"
            },
            {
              "version": "5d240a8936f6a1d3ece06701e8c4d830a2eca8a8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8173f7e2ce67e6ca1d4763f3da14e5b01ce77456"
            }
          ]
        },
        {
          "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": "6.6.151",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.103",
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}