{
  "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-2025-39736",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-39736",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-11T16:52:11.772Z",
    "updatedAt": "2026-05-12T12:06:38.396Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "mm/kmemleak: avoid deadlock by moving pr_warn() outside kmemleak_lock",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/kmemleak: avoid deadlock by moving pr_warn() outside kmemleak_lock\n\nWhen netpoll is enabled, calling pr_warn_once() while holding\nkmemleak_lock in mem_pool_alloc() can cause a deadlock due to lock\ninversion with the netconsole subsystem.  This occurs because\npr_warn_once() may trigger netpoll, which eventually leads to\n__alloc_skb() and back into kmemleak code, attempting to reacquire\nkmemleak_lock.\n\nThis is the path for the deadlock.\n\nmem_pool_alloc()\n  -> raw_spin_lock_irqsave(&kmemleak_lock, flags);\n      -> pr_warn_once()\n          -> netconsole subsystem\n\t     -> netpoll\n\t         -> __alloc_skb\n\t\t   -> __create_object\n\t\t     -> raw_spin_lock_irqsave(&kmemleak_lock, flags);\n\nFix this by setting a flag and issuing the pr_warn_once() after\nkmemleak_lock is released.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c7b6ea0ede687e7460e593c5ea478f50aa41682a"
            },
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4b0151e1d468eb2667c37b7af99b3c075072d334"
            },
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f249d32bb54876b4b6c3ae071af8ddca77af390b"
            },
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "62879faa8efe8d8a9c7bf7606ee9c068012d7dac"
            },
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1da95d3d4b7b1d380ebd87b71a61e7e6aed3265d"
            },
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a0854de00ce2ee27edf39037e7836ad580eb3350"
            },
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "08f70be5e406ce47c822f2dd11c1170ca259605b"
            },
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a181b228b37a6a5625dad2bb4265bb7abb673e9f"
            },
            {
              "version": "c5665868183fec689dbab9fb8505188b2c4f0757",
              "status": "affected",
              "versionType": "git",
              "lessThan": "47b0f6d8f0d2be4d311a49e13d2fd5f152f492b2"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.4"
            },
            {
              "version": "5.4.297",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.241",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.190",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.149",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.103",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.43",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.15.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "version": "6.16.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.16.*"
            },
            {
              "version": "6.17",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}