{
  "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-2025-71182",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-71182",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2026-01-31T11:38:55.157Z",
    "updatedAt": "2026-10-19T18:15:16.548Z",
    "importedAt": "2026-10-24T01:57:44.935Z",
    "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": "can: j1939: make j1939_session_activate() fail if device is no longer registered",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: make j1939_session_activate() fail if device is no longer registered\n\nsyzbot is still reporting\n\n  unregister_netdevice: waiting for vcan0 to become free. Usage count = 2\n\neven after commit 93a27b5891b8 (\"can: j1939: add missing calls in\nNETDEV_UNREGISTER notification handler\") was added. A debug printk() patch\nfound that j1939_session_activate() can succeed even after\nj1939_cancel_active_session() from j1939_netdev_notify(NETDEV_UNREGISTER)\nhas completed.\n\nSince j1939_cancel_active_session() is processed with the session list lock\nheld, checking ndev->reg_state in j1939_session_activate() with the session\nlist lock held can reliably close the race window.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9d71dd0c70099914fcd063135da3c580865e924c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ebb0dfd718dd31c8d3600612ca4b7207ec3d923a"
            },
            {
              "version": "9d71dd0c70099914fcd063135da3c580865e924c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c3a4316e3c746af415c0fd6c6d489ad13f53714d"
            },
            {
              "version": "9d71dd0c70099914fcd063135da3c580865e924c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "46ca9dc978923c5e1247a9e9519240ba7ace413c"
            },
            {
              "version": "9d71dd0c70099914fcd063135da3c580865e924c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "78d87b72cebe2a993fd5b017e9f14fb6278f2eae"
            },
            {
              "version": "9d71dd0c70099914fcd063135da3c580865e924c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba6f0d1832eeb5eb3a6dc5cb30e0f720b3cb3536"
            },
            {
              "version": "9d71dd0c70099914fcd063135da3c580865e924c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "79dd3f1d9dd310c2af89b09c71f34d93973b200f"
            },
            {
              "version": "9d71dd0c70099914fcd063135da3c580865e924c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5d5602236f5db19e8b337a2cd87a90ace5ea776d"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.4"
            },
            {
              "version": "5.10.248",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.198",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.161",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.121",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.66",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}