{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53252",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.394Z",
        "datePublished": "2026-06-25T08:39:43.951Z",
        "dateUpdated": "2026-06-25T08:39:43.951Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-25T08:39:43.951Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: fix memory leak in error path of hci_alloc_dev()\n\nEarly failures in Bluetooth HCI UART configuration leak SRCU percpu\nmemory.\n\nWhen device initialization fails before hci_register_dev() completes,\nthe HCI_UNREGISTER flag is never set. As a result, when the device\nreference count reaches zero, bt_host_release() evaluates this flag as\nfalse and falls back to a direct kfree(hdev).\n\nBecause hci_release_dev() is bypassed, the SRCU struct initialized\nearly in hci_alloc_dev() is never cleaned up, resulting in a leak of\npercpu memory.\n\nFix the leak by explicitly calling cleanup_srcu_struct() in the\nfallback (unregistered) branch of bt_host_release() before freeing\nthe device."
                }
            ],
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                            "status": "affected",
                            "versionType": "semver"
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                            "versionType": "semver"
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                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
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                    ],
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                        },
                        {
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                        },
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                        },
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                        },
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                            "status": "unaffected",
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                        },
                        {
                            "version": "7.0.13",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
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                }
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/5b7dfca6f852e6b9d809fd0263b5427cc9fb33fd"
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                    "url": "https://git.kernel.org/stable/c/c016118b9e51eeaf5bc93850d4c455a3b583c0aa"
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                    "url": "https://git.kernel.org/stable/c/f82799407a50af7bcacacf09cc9b279af8fe9b81"
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                {
                    "url": "https://git.kernel.org/stable/c/37b3009bf5976e8ab77c8b9a9bc3bbd7ff49e37f"
                }
            ],
            "title": "Bluetooth: fix memory leak in error path of hci_alloc_dev()",
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                "engine": "bippy-1.2.0"
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    }
}