{
  "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-2023-53731",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53731",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-22T13:23:59.055Z",
    "updatedAt": "2026-05-23T15:30:38.411Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "netlink: fix potential deadlock in netlink_set_err()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: fix potential deadlock in netlink_set_err()\n\nsyzbot reported a possible deadlock in netlink_set_err() [1]\n\nA similar issue was fixed in commit 1d482e666b8e (\"netlink: disable IRQs\nfor netlink_lock_table()\") in netlink_lock_table()\n\nThis patch adds IRQ safety to netlink_set_err() and __netlink_diag_dump()\nwhich were not covered by cited commit.\n\n[1]\n\nWARNING: possible irq lock inversion dependency detected\n6.4.0-rc6-syzkaller-00240-g4e9f0ec38852 #0 Not tainted\n\nsyz-executor.2/23011 just changed the state of lock:\nffffffff8e1a7a58 (nl_table_lock){.+.?}-{2:2}, at: netlink_set_err+0x2e/0x3a0 net/netlink/af_netlink.c:1612\nbut this lock was taken by another, SOFTIRQ-safe lock in the past:\n (&local->queue_stop_reason_lock){..-.}-{2:2}\n\nand interrupts could create inverse lock ordering between them.\n\nother info that might help us debug this:\n Possible interrupt unsafe locking scenario:\n\n       CPU0                    CPU1\n       ----                    ----\n  lock(nl_table_lock);\n                               local_irq_disable();\n                               lock(&local->queue_stop_reason_lock);\n                               lock(nl_table_lock);\n  <Interrupt>\n    lock(&local->queue_stop_reason_lock);\n\n *** DEADLOCK ***",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "82b2ea5f904b3826934df4a00f3b8806272185f6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c09e8e3f7fd432984bf5422302b093d2371dfc48"
            },
            {
              "version": "59fba11d649854134c75ad88c8adafa9304ac419",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4b9adb8d4a62ff7608d4a7d4eb42036a88f30980"
            },
            {
              "version": "21df0c2e7d195de4a3c650de9361b3037fa6c59a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8f6652ed2ad98fe6d13b903483d9257762ab2ec6"
            },
            {
              "version": "1d6d43d4805da9b3fa0f5841e8b1083c89868f35",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cde7b90e0539a3b11da377e463dfd2288a162dbf"
            },
            {
              "version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a641240b7e071c5538dc0e7894ece833fce459dd"
            },
            {
              "version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "61ffe8b1ee084e5c82a4e4bbf9e7b68e0c06e464"
            },
            {
              "version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eb8e27c8fa9397b4a7b181c48fa58157dbe9902e"
            },
            {
              "version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1556ba034b95cfd4f75ea93c1a2679ae0444bba1"
            },
            {
              "version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8d61f926d42045961e6b65191c09e3678d86a9cf"
            },
            {
              "version": "5f155c4046200f067b1dc3140ea99ef56e4e0b74",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "a8e9111a8625dd11e70edd61f7a1ccd26c041442",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "76cc8e04f38c2bbfcba07f62864a011f142bd40c",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.14.237",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.14.322"
            },
            {
              "version": "4.19.195",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.19.291"
            },
            {
              "version": "5.4.126",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.251"
            },
            {
              "version": "5.10.44",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.188"
            },
            {
              "version": "4.4.273",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.5"
            },
            {
              "version": "4.9.273",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "5.12.11",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.13"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.13"
            },
            {
              "version": "4.14.322",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.291",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.251",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.121",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.39",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.3.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "version": "6.4.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}