{
  "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-2026-72122",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72122",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:53:00.704Z",
    "updatedAt": "2026-10-16T18:44:57.450Z",
    "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: bcm: fix lockless bound/ifindex race and silent RX_SETUP failure",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: fix lockless bound/ifindex race and silent RX_SETUP failure\n\nbcm_sendmsg() reads bo->ifindex and checks bo->bound before taking\nlock_sock(), while bcm_notify(), bcm_connect() and bcm_release() all\nmutate both fields under that same lock. Because the lockless reads\nand the locked writes are unordered with respect to each other, a\nracing bcm_notify() (device unregister) or bcm_connect() (concurrent\nbind on another thread sharing the socket) can make bcm_sendmsg()\nobserve an inconsistent combination, e.g. a stale bound=1 together\nwith the now-cleared ifindex=0, silently turning a socket bound to a\nspecific CAN interface into one that also matches \"any\" interface.\n\nKeep the lockless bo->bound check purely as a fast-path reject, and\nmove the ifindex read (and a bo->bound re-check) into the locked\nsection, where every writer already serializes. This removes the\npossibility of observing the two fields torn against each other,\nrather than trying to fix it with more READ_ONCE()/WRITE_ONCE() pairs\non two independently updated fields. Annotate the now-purely-lockless\nbo->bound accesses consistently across all its write sites.\n\nAlso fix bcm_rx_setup() silently returning success when the target\ndevice disappears concurrently instead of reporting -ENODEV, so a\nbroken RX op is no longer left registered as if it had succeeded.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9e60c586faeaed80d55ab8ce2a4b8e56133bc395"
            },
            {
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ffa80a2af27c97453861a5128e537214a31cd18a"
            },
            {
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6bcc5cd247c2934373bc2a1cdf8bf12321169543"
            },
            {
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0f6f9f95294b4cbb26ba02209e893e3bd91237c3"
            },
            {
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b70f1a15533afeeec5d07f20bec3f3867ab1c7b6"
            },
            {
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "status": "affected",
              "versionType": "git",
              "lessThan": "35f0ac19efb1a3f6c5e12c00e475a9ec2d9c3a6d"
            },
            {
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b9c6ac6fb4e01b34575816066e5d3890a57b3c86"
            },
            {
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d9b091d9d22fee81ec53fb55d2032951993ceadb"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.25",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.25"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}