{
  "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-2026-72126",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72126",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:53:03.642Z",
    "updatedAt": "2026-10-16T18:44:58.135Z",
    "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": "can: isotp: use unconditional synchronize_rcu() in isotp_release()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: use unconditional synchronize_rcu() in isotp_release()\n\nisotp_notify() unregisters the (RCU) CAN filters via can_rx_unregister()\nand clears so->bound without waiting for a grace period. isotp_release()\nuses so->bound to decide whether it needs to call synchronize_rcu()\nbefore cancelling so->rxtimer, so when NETDEV_UNREGISTER runs first it\nskips that synchronize_rcu() and can cancel the timer while an\nin-flight isotp_rcv() is still executing and about to re-arm it via\nisotp_send_fc(), leading to a use-after-free timer callback on the\nfreed socket.\n\nsakisho-bot remarked a problem with rtnl_lock held in isotp_notify(),\ntherefore make isotp_release() always call synchronize_rcu() before\ncancelling the timers, regardless of so->bound. This still closes the\noriginal race (isotp_notify() clearing so->bound without waiting for\nin-flight isotp_rcv() callers before isotp_release() cancels the RX\ntimer) without adding any RCU wait to the netdevice notifier path.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "22bfa94db2ef6900c790884fa9461486516626e9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "945d9894502cd9124f5d676181c542ed2000f7c0"
            },
            {
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "status": "affected",
              "versionType": "git",
              "lessThan": "59672aa4bcd8d32172c1ff6a179583981d6acabc"
            },
            {
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "status": "affected",
              "versionType": "git",
              "lessThan": "15413a082df69175c2f96aeab4c26fe1ff7cff03"
            },
            {
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6280eda96e0707264849fa7d036fed873c1f8a6d"
            },
            {
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cb6abc584a1bfab107ac003d64948a4aef1730aa"
            },
            {
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b88a511308779c225005d7994b8744561bdbafbc"
            },
            {
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b8278ff605187ef3fa0f2705e93251cce4c4f8ee"
            },
            {
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9b1a02e0d980ac6b0e36a90378f847062f81d7e4"
            },
            {
              "version": "80c6ddf771df2ef786f28c1ca5919b3f1080091b",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "ebf91625b3e404bd2b4b694c7ee71c1e8f8bd08f",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.50",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.261"
            },
            {
              "version": "5.12.17",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.13"
            },
            {
              "version": "5.13.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.14"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.14"
            },
            {
              "version": "5.10.261",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.97",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}