{
  "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-2026-98246",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98246",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-06T08:45:15.411Z",
    "updatedAt": "2026-10-19T09:16:17.812Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "Bluetooth: hci_sync: Serialize local codec list cleanup",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Serialize local codec list cleanup\n\nhci_dev_close_sync() clears hdev->local_codecs after releasing hdev->lock.\nCodec list additions and both traversals in sco_sock_getsockopt() use that\nlock, but the close path does not. A close and BT_CODEC query can therefore\ninterleave as follows:\n\n  hci_dev_close_sync()          sco_sock_getsockopt()\n                                hci_dev_lock()\n                                fetch codec entry\n  hci_codec_list_clear()\n    kfree(entry)\n                                read entry->id\n\nThe reader then accesses an entry which the close path has freed. KASAN\n\n  BUG: KASAN: slab-use-after-free in sco_sock_getsockopt+0xfa0/0xfe0\n  Read of size 1 at addr ffff8881001c3450\n  Call Trace:\n   sco_sock_getsockopt+0xfa0/0xfe0\n   do_sock_getsockopt+0x537/0x7b0\n   __sys_getsockopt+0xf2/0x170\n  Allocated by task 92:\n   hci_codec_list_add.isra.0+0x2c/0x440\n   hci_read_codec_capabilities+0x224/0x590\n   hci_read_supported_codecs+0x2c2/0x640\n  Freed by task 92:\n   kfree+0x131/0x3c0\n   hci_codec_list_clear+0xd8/0x160\n   hci_dev_close_sync+0x92a/0xfa0\n\nTake hdev->lock around the clear operation at its existing point in the\nclose path. This makes the clear wait for active readers and prevents a new\ntraversal until the list is empty without changing teardown ordering.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "626535077ba9dc110787540d1fe24881094c15a1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9f407d52c0d881430d689836d3e7d32aa36f98b5"
            },
            {
              "version": "b938790e70540bf4f2e653dcd74b232494d06c8f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "560ed4373c06a58123ecdf9ad5ecaddc87a73382"
            },
            {
              "version": "b938790e70540bf4f2e653dcd74b232494d06c8f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1ee0c5429dc4a92879bda2554b1bfd4abc6c587c"
            },
            {
              "version": "b938790e70540bf4f2e653dcd74b232494d06c8f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4dc1ae5ff75b17e17ec4b74b11cc4b0099e71e00"
            },
            {
              "version": "b938790e70540bf4f2e653dcd74b232494d06c8f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1276c2fafd18499769a28f96f45c5a76d6fc990e"
            },
            {
              "version": "b938790e70540bf4f2e653dcd74b232494d06c8f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9a10987a2f160a44a638c9a35994ca6e3089696e"
            },
            {
              "version": "eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.1.57",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.189"
            },
            {
              "version": "6.5.7",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.6",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.6"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}