{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31620",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.123Z",
        "datePublished": "2026-04-24T14:42:38.607Z",
        "dateUpdated": "2026-06-14T17:43:06.553Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:43:06.553Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usx2y: us144mkii: fix NULL deref on missing interface 0\n\nA malicious USB device with the TASCAM US-144MKII device id can have a\nconfiguration containing bInterfaceNumber=1 but no interface 0.  USB\nconfiguration descriptors are not required to assign interface numbers\nsequentially, so usb_ifnum_to_if(dev, 0) returns will NULL, which will\nthen be dereferenced directly.\n\nFix this up by checking the return value properly."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/usb/usx2y/us144mkii.c"
                    ],
                    "versions": [
                        {
                            "version": "dee1bcf28a3dd13ddb2e9200407864f73e9c4d63",
                            "lessThan": "09b145c1f1331c40dc955c0024d636f25417cddb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dee1bcf28a3dd13ddb2e9200407864f73e9c4d63",
                            "lessThan": "fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dee1bcf28a3dd13ddb2e9200407864f73e9c4d63",
                            "lessThan": "d04dd67ab10dc978c6c843c6bd6a2a66a9444f51",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dee1bcf28a3dd13ddb2e9200407864f73e9c4d63",
                            "lessThan": "48bd344e1040b9f2eb512be73c13f5db83efc191",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/usb/usx2y/us144mkii.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.24",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.14",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.1",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "6.18",
                                    "versionEndExcluding": "6.18.24"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "6.19.14"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "7.0.1"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/09b145c1f1331c40dc955c0024d636f25417cddb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d04dd67ab10dc978c6c843c6bd6a2a66a9444f51"
                },
                {
                    "url": "https://git.kernel.org/stable/c/48bd344e1040b9f2eb512be73c13f5db83efc191"
                }
            ],
            "title": "ALSA: usx2y: us144mkii: fix NULL deref on missing interface 0",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}