{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31497",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.102Z",
        "datePublished": "2026-04-22T13:54:19.051Z",
        "dateUpdated": "2026-05-11T22:09:53.017Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:09:53.017Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btusb: clamp SCO altsetting table indices\n\nbtusb_work() maps the number of active SCO links to USB alternate\nsettings through a three-entry lookup table when CVSD traffic uses\ntransparent voice settings. The lookup currently indexes alts[] with\ndata->sco_num - 1 without first constraining sco_num to the number of\navailable table entries.\n\nWhile the table only defines alternate settings for up to three SCO\nlinks, data->sco_num comes from hci_conn_num() and is used directly.\nCap the lookup to the last table entry before indexing it so the\ndriver keeps selecting the highest supported alternate setting without\nreading past alts[]."
                }
            ],
            "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": "baac6276c0a9f36f1fe1f00590ef00d2ba5ba626",
                            "lessThan": "312c4450fe23014665c163f480edd5ad2e27bbb8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "baac6276c0a9f36f1fe1f00590ef00d2ba5ba626",
                            "lessThan": "9dd13a8641de79bc1bc93da55cdd35259a002683",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "baac6276c0a9f36f1fe1f00590ef00d2ba5ba626",
                            "lessThan": "476c9262b430c38c6a701a3b8176a3f48689085b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "baac6276c0a9f36f1fe1f00590ef00d2ba5ba626",
                            "lessThan": "6fba3c3d48c927e55611a0f5ea34da88138ed0ff",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "baac6276c0a9f36f1fe1f00590ef00d2ba5ba626",
                            "lessThan": "834cf890d2c3d29cbfa1ee2376c40469c28ec297",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "baac6276c0a9f36f1fe1f00590ef00d2ba5ba626",
                            "lessThan": "1019028eb124564cf7bca58a16f1df8a1ca30726",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "baac6276c0a9f36f1fe1f00590ef00d2ba5ba626",
                            "lessThan": "21c254202f9d78abe0fcd642a92966deb92bd226",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "baac6276c0a9f36f1fe1f00590ef00d2ba5ba626",
                            "lessThan": "129fa608b6ad08b8ab7178eeb2ec272c993aaccc",
                            "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": "5.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.168",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.131",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.80",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.21",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.11",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "5.8",
                                    "versionEndExcluding": "5.10.253"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "5.15.203"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.1.168"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.6.131"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.12.80"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.18.21"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.19.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/312c4450fe23014665c163f480edd5ad2e27bbb8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9dd13a8641de79bc1bc93da55cdd35259a002683"
                },
                {
                    "url": "https://git.kernel.org/stable/c/476c9262b430c38c6a701a3b8176a3f48689085b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6fba3c3d48c927e55611a0f5ea34da88138ed0ff"
                },
                {
                    "url": "https://git.kernel.org/stable/c/834cf890d2c3d29cbfa1ee2376c40469c28ec297"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1019028eb124564cf7bca58a16f1df8a1ca30726"
                },
                {
                    "url": "https://git.kernel.org/stable/c/21c254202f9d78abe0fcd642a92966deb92bd226"
                },
                {
                    "url": "https://git.kernel.org/stable/c/129fa608b6ad08b8ab7178eeb2ec272c993aaccc"
                }
            ],
            "title": "Bluetooth: btusb: clamp SCO altsetting table indices",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}