{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "06d3fdfcdf5cefb06f2024b9d3dad356779399cf"
            },
            {
              "fixed": "5a3945e8dea6c9a8ec9e981169ac9487e1d6ad6a"
            },
            {
              "fixed": "069258d5111eed9ac9586bee42d03d38e2975715"
            },
            {
              "fixed": "cefb44c367b2b52e50f97bc8526d39df9bcf5e60"
            },
            {
              "fixed": "2363a757694752426fc47f3eadde15cf5f791fa5"
            },
            {
              "fixed": "bf587a10c33e5571a299742e45bc18960b9912e7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.6.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68389.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: Clear memdump state on invalid dump size\n\nqca_controller_memdump() allocates qca-\u003eqca_memdump before processing\nthe first dump packet. For a sequence-zero packet it then disables IBS,\nmarks memdump collection active, and reads the advertised dump size.\n\nIf the controller reports a zero dump size, the error path frees the\nlocal qca_memdump object and returns without clearing qca-\u003eqca_memdump\nor undoing the collection state. A later memdump work item initializes\nits local pointer from qca-\u003eqca_memdump and skips allocation when that\npointer is non-NULL, so it can operate on freed memory. The stale\ncollection and IBS-disabled flags can also leave waiters or later\ntransmit handling blocked behind an aborted dump.\n\nClear the saved pointer and memdump state before returning from the\ninvalid-size path, matching the cleanup used when hci_devcd_init() fails.\n\nA static analysis checker reported the stale memdump state, and manual\nsource review confirmed the invalid-size failure path.",
  "id": "CVE-2026-68389",
  "modified": "2026-08-18T03:30:53.989993797Z",
  "published": "2026-08-10T12:04:08.306Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/069258d5111eed9ac9586bee42d03d38e2975715"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2363a757694752426fc47f3eadde15cf5f791fa5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a3945e8dea6c9a8ec9e981169ac9487e1d6ad6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf587a10c33e5571a299742e45bc18960b9912e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cefb44c367b2b52e50f97bc8526d39df9bcf5e60"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68389.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68389"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "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: hci_qca: Clear memdump state on invalid dump size"
}