{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-97977",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:18:58.208Z",
        "datePublished": "2026-09-25T10:23:15.198Z",
        "dateUpdated": "2026-10-19T09:11:44.507Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:11:44.507Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btusb: Fix UAF of btusb_data by rx_work\n\nbtusb_close() and btusb_flush() cancel data->rx_work with the\nasynchronous cancel_delayed_work(), so if btusb_rx_work() is already\nrunning on another CPU it keeps running after the cancel returns.\n\nbtusb_disconnect() calls hci_unregister_dev(), which invokes\nbtusb_close(), and then frees the btusb_data. A still running\nbtusb_rx_work() then dereferences the freed data:\n\n\twhile ((skb = skb_dequeue(&data->acl_q)))\n\t\tdata->recv_acl(data->hdev, skb);\n\nUse cancel_delayed_work_sync() instead. In btusb_close() the cancel also\nhas to happen after btusb_stop_traffic(), otherwise an URB completion\nracing with the cancel can requeue the work right after it has been\nwaited for."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bluetooth/btusb.c"
                    ],
                    "versions": [
                        {
                            "version": "800fe5ec302e1ebbf5e3f891f886deecd49c7132",
                            "lessThan": "fc654a72a8d979db15e2773a481e931abaf5a9e8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "800fe5ec302e1ebbf5e3f891f886deecd49c7132",
                            "lessThan": "5242050195a711e9cd6a9935f689ab6656b94a91",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "800fe5ec302e1ebbf5e3f891f886deecd49c7132",
                            "lessThan": "472d005622525b7be155cac99dde2252b0163bd1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "800fe5ec302e1ebbf5e3f891f886deecd49c7132",
                            "lessThan": "93b59937bda3fffc6386c79f5544a39bc680c8e8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "800fe5ec302e1ebbf5e3f891f886deecd49c7132",
                            "lessThan": "fa391adb9c755515a89993634745e9079e5ef37c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "800fe5ec302e1ebbf5e3f891f886deecd49c7132",
                            "lessThan": "1c12c3117639e78940959d956519c758c57d0849",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bluetooth/btusb.c"
                    ],
                    "versions": [
                        {
                            "version": "5.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.1.189"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.12.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.2.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/fc654a72a8d979db15e2773a481e931abaf5a9e8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5242050195a711e9cd6a9935f689ab6656b94a91"
                },
                {
                    "url": "https://git.kernel.org/stable/c/472d005622525b7be155cac99dde2252b0163bd1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/93b59937bda3fffc6386c79f5544a39bc680c8e8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fa391adb9c755515a89993634745e9079e5ef37c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1c12c3117639e78940959d956519c758c57d0849"
                }
            ],
            "title": "Bluetooth: btusb: Fix UAF of btusb_data by rx_work",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}