{
  "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-2026-64079",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64079",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-19T15:39:52.192Z",
    "updatedAt": "2026-10-21T12:43:03.518Z",
    "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": "netfilter: x_tables: allocate hook ops while under mutex",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: x_tables: allocate hook ops while under mutex\n\narp/ip(6)t_register_table() add the table to the per-netns list via\nxt_register_table() before allocating the per-netns hook ops copy\nvia kmemdup_array().  This leaves a window where the table is\nvisible in the list with ops=NULL.\n\nIf the pernet exit happens runs concurrently the pre_exit callback finds\nthe table via xt_find_table() and passes the NULL ops pointer to\nnf_unregister_net_hooks(), causing a NULL dereference:\n\n  general protection fault in nf_unregister_net_hooks+0xbc/0x150\n  RIP: nf_unregister_net_hooks (net/netfilter/core.c:613)\n  Call Trace:\n    ipt_unregister_table_pre_exit\n    iptable_mangle_net_pre_exit\n    ops_pre_exit_list\n    cleanup_net\n\nFix by moving the ops allocation into the xtables core so the table is\nnever in the list without valid ops.  Also ensure the table is no longer\nprocessing packets before its torn down on error unwind.\nnf_register_net_hooks might have published at least one hook; call\nsynchronize_rcu() if there was an error.\n\naudit log register message gets deferred until all operations have\npassed, this avoids need to emit another ureg message in case of\nerror unwinding.\n\nBased on earlier patch by Tristan Madani.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ae689334225ff0e4ef112459ecd24aea932c2b00",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5ea15e78232253e657d352e625fb4913e2f57e63"
            },
            {
              "version": "ae689334225ff0e4ef112459ecd24aea932c2b00",
              "status": "affected",
              "versionType": "git",
              "lessThan": "693bffd742dd4fa9a0076ed120545af3679c588b"
            },
            {
              "version": "ae689334225ff0e4ef112459ecd24aea932c2b00",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f669571a2bf5067f50091cc598df9613663ee226"
            },
            {
              "version": "ae689334225ff0e4ef112459ecd24aea932c2b00",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2f92c5f923979f37ab1d5445381e4b8378a196cc"
            },
            {
              "version": "ae689334225ff0e4ef112459ecd24aea932c2b00",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b62eb8dcf2c47d4d676a434efbd57c4f776f7829"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.13"
            },
            {
              "version": "6.6.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.114",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.57",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}