{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "15f02b91056253e8cdc592888f431da0731337b8"
            },
            {
              "fixed": "3c8eaa91eb433c450426539290be4ffe282e9f00"
            },
            {
              "fixed": "ecfed1e0d8efecad6737a0d83e21d2fd021d8c48"
            },
            {
              "fixed": "e6833e737a51db1e5ea0401322acf5e22abd8be6"
            },
            {
              "fixed": "6319b38fe69f56ed95680ade485b957a53fff642"
            },
            {
              "fixed": "291eec1041c918c460dc9702e44edd17794b4a4b"
            },
            {
              "fixed": "41e29548b5e8b5e5fcf708786b3bea67cab107fa"
            },
            {
              "fixed": "d153b8898c0051eb8b6a083b35cbe304a5886bd5"
            },
            {
              "fixed": "41c2713b204e6cb6a94587bc6bf6935107df5479"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.7.0"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63975.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp\n\nIf dcid is received for an already-assigned destination CID the spec\nrequires that both channels to be discarded, but calling l2cap_chan_del\nmay invalidate the tmp cursor created by list_for_each_entry_safe and\nin fact it is the wrong procedure as the chan-\u003edcid may be assigned\npreviously it really needs to be disconnected.\n\nCalling l2cap_chan_clone directly may still lead to l2cap_chan_del so\ninstead schedule l2cap_chan_timeout with delay 0 to close the channel\nasynchronously.",
  "id": "CVE-2026-63975",
  "modified": "2026-07-22T05:29:58.707363761Z",
  "published": "2026-07-19T14:56:00.662Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63975.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63975"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp"
}