{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49200",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T01:49:39.291Z",
        "datePublished": "2025-02-26T01:55:42.758Z",
        "dateUpdated": "2026-05-11T18:55:04.839Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T18:55:04.839Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt\n\nFix the following kernel oops in btmtksdio_interrrupt\n\n[   14.339134]  btmtksdio_interrupt+0x28/0x54\n[   14.339139]  process_sdio_pending_irqs+0x68/0x1a0\n[   14.339144]  sdio_irq_work+0x40/0x70\n[   14.339154]  process_one_work+0x184/0x39c\n[   14.339160]  worker_thread+0x228/0x3e8\n[   14.339168]  kthread+0x148/0x3ac\n[   14.339176]  ret_from_fork+0x10/0x30\n\nThat happened because hdev->power_on is already called before\nsdio_set_drvdata which btmtksdio_interrupt handler relies on is not\nproperly set up.\n\nThe details are shown as the below: hci_register_dev would run\nqueue_work(hdev->req_workqueue, &hdev->power_on) as WQ_HIGHPRI\nworkqueue_struct to complete the power-on sequeunce and thus hci_power_on\nmay run before sdio_set_drvdata is done in btmtksdio_probe.\n\nThe hci_dev_do_open in hci_power_on would initialize the device and enable\nthe interrupt and thus it is possible that btmtksdio_interrupt is being\ncalled right before sdio_set_drvdata is filled out.\n\nWhen btmtksdio_interrupt is being called and sdio_set_drvdata is not filled\n, the kernel oops is going to happen because btmtksdio_interrupt access an\nuninitialized pointer."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bluetooth/btmtksdio.c"
                    ],
                    "versions": [
                        {
                            "version": "9aebfd4a2200ab8075e44379c758bccefdc589bb",
                            "lessThan": "874eca93966a786eace87fa6dfb206c2dd9519b1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9aebfd4a2200ab8075e44379c758bccefdc589bb",
                            "lessThan": "70a6cf749d9ff9f463490248322e5343199bc267",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9aebfd4a2200ab8075e44379c758bccefdc589bb",
                            "lessThan": "770a97d3f34b801de1b04737b43e02c55118c41a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9aebfd4a2200ab8075e44379c758bccefdc589bb",
                            "lessThan": "4d3d1f2c35a19988d3c5f0ee86038b525e830840",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9aebfd4a2200ab8075e44379c758bccefdc589bb",
                            "lessThan": "6d7be5afbb41c918d2f12f857f8c7efa50500be2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9aebfd4a2200ab8075e44379c758bccefdc589bb",
                            "lessThan": "b062a0b9c1dc1ff63094337dccfe1568d5b62023",
                            "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/btmtksdio.c"
                    ],
                    "versions": [
                        {
                            "version": "5.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.189",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.110",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.33",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.16.19",
                            "lessThanOrEqual": "5.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.17.2",
                            "lessThanOrEqual": "5.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18",
                            "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": "5.2",
                                    "versionEndExcluding": "5.4.189"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.10.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.15.33"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.16.19"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.17.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.18"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/874eca93966a786eace87fa6dfb206c2dd9519b1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/70a6cf749d9ff9f463490248322e5343199bc267"
                },
                {
                    "url": "https://git.kernel.org/stable/c/770a97d3f34b801de1b04737b43e02c55118c41a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4d3d1f2c35a19988d3c5f0ee86038b525e830840"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6d7be5afbb41c918d2f12f857f8c7efa50500be2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b062a0b9c1dc1ff63094337dccfe1568d5b62023"
                }
            ],
            "title": "Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}