{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-68298",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-16T14:48:05.293Z",
        "datePublished": "2025-12-16T15:06:17.526Z",
        "dateUpdated": "2026-05-23T16:02:35.979Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:02:35.979Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btusb: mediatek: Avoid btusb_mtk_claim_iso_intf() NULL deref\n\nIn btusb_mtk_setup(), we set `btmtk_data->isopkt_intf` to:\n  usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM)\n\nThat function can return NULL in some cases. Even when it returns\nNULL, though, we still go on to call btusb_mtk_claim_iso_intf().\n\nAs of commit e9087e828827 (\"Bluetooth: btusb: mediatek: Add locks for\nusb_driver_claim_interface()\"), calling btusb_mtk_claim_iso_intf()\nwhen `btmtk_data->isopkt_intf` is NULL will cause a crash because\nwe'll end up passing a bad pointer to device_lock(). Prior to that\ncommit we'd pass the NULL pointer directly to\nusb_driver_claim_interface() which would detect it and return an\nerror, which was handled.\n\nResolve the crash in btusb_mtk_claim_iso_intf() by adding a NULL check\nat the start of the function. This makes the code handle a NULL\n`btmtk_data->isopkt_intf` the same way it did before the problematic\ncommit (just with a slight change to the error message printed)."
                }
            ],
            "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": "930e1790b99e5839e1af69d2f7fd808f1fba2df9",
                            "lessThan": "2fa09fe98ca3b114d66285f65f7e108fea131815",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e9087e828827e5a5c85e124ce77503f2b81c3491",
                            "lessThan": "c3b990e0b23068da65f0004cd38ee31f43f36460",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e9087e828827e5a5c85e124ce77503f2b81c3491",
                            "lessThan": "c884a0b27b4586e607431d86a1aa0bb4fb39169c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4194766ec8756f4f654d595ae49962acbac49490",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.12.13",
                            "lessThan": "6.12.61",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.13.2",
                            "lessThan": "6.14",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "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": "6.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.61",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.11",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18",
                            "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": "6.12.13",
                                    "versionEndExcluding": "6.12.61"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.14",
                                    "versionEndExcluding": "6.17.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.14",
                                    "versionEndExcluding": "6.18"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.13.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2fa09fe98ca3b114d66285f65f7e108fea131815"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c3b990e0b23068da65f0004cd38ee31f43f36460"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c884a0b27b4586e607431d86a1aa0bb4fb39169c"
                }
            ],
            "title": "Bluetooth: btusb: mediatek: Avoid btusb_mtk_claim_iso_intf() NULL deref",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}