{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a7bcffc673de219af2698fbb90627016233de67b"
            },
            {
              "fixed": "e6b78019664dfe37c3dc707f50e7b453d6c7726d"
            },
            {
              "fixed": "a59d4f4217e6200ca9180643e5738a87d3fa8be0"
            },
            {
              "fixed": "bfa9d28960ed677d556bdf097073bc3129686229"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "087812a6119b4cd5c9d658b48aee40a25707a1c6"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.16.4"
            },
            {
              "fixed": "6.17"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.17.0"
            },
            {
              "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/2026/53xxx/CVE-2026-53364.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()\n\nhci_le_big_terminate() allocates iso_list_data via kzalloc_obj but\nreturns 0 without freeing it when neither pa_sync_term nor big_sync_term\nflags are set after evaluating the PA and BIG sync connection state.\n\nThis early-return path was introduced when hci_le_big_terminate() was\nrefactored to take struct hci_conn instead of raw u8 parameters, adding\nPA/BIG flag evaluation logic. The existing kfree() on hci_cmd_sync_queue\nfailure does not cover this path.",
  "id": "CVE-2026-53364",
  "modified": "2026-07-16T03:30:48.823643653Z",
  "published": "2026-07-13T17:33:52.302Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a59d4f4217e6200ca9180643e5738a87d3fa8be0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfa9d28960ed677d556bdf097073bc3129686229"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e6b78019664dfe37c3dc707f50e7b453d6c7726d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53364.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53364"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()"
}