{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-63904",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T07:54:57.019Z",
        "datePublished": "2026-07-19T14:55:11.547Z",
        "dateUpdated": "2026-07-19T14:55:11.547Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-19T14:55:11.547Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: usbtmc: check URB actual_length for interrupt-IN notifications\n\nUSBTMC devices can use an optional interrupt endpoint for notification\nmessages. These typically contain two-byte headers indicating the\npayload format, but the driver does not check if these headers are\npresent before accessing the data buffers. In cases where the URB\nactual_length is not enough to fit these headers, the driver will either\ncause an out-of-bounds read, or consume stale leftover data from a\nprevious notification.\n\nFix by checking if actual_data contains enough bytes for the headers,\notherwise resubmit URB to the interrupt endpoint."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/usb/class/usbtmc.c"
                    ],
                    "versions": [
                        {
                            "version": "dbf3e7f654c0f06a932b8fcafac78de9d0b81d68",
                            "lessThan": "e794bd67b3faf98af46f958897f6b91412c7d2a9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dbf3e7f654c0f06a932b8fcafac78de9d0b81d68",
                            "lessThan": "e3eec3005de44e7f37d8d7724be636446516ab42",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dbf3e7f654c0f06a932b8fcafac78de9d0b81d68",
                            "lessThan": "ae87f505917e703ae3b487d9663d78826ff43608",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dbf3e7f654c0f06a932b8fcafac78de9d0b81d68",
                            "lessThan": "5de7df75ef3a2756b25fe3d582a4a2970444fe5a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dbf3e7f654c0f06a932b8fcafac78de9d0b81d68",
                            "lessThan": "69020fa089f1bf0e1a10a15265f31b143a846409",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dbf3e7f654c0f06a932b8fcafac78de9d0b81d68",
                            "lessThan": "75f6d3da2cc646983f41807ef98851569c12bca9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dbf3e7f654c0f06a932b8fcafac78de9d0b81d68",
                            "lessThan": "f141b01eaa58ac7e323931d670318aa247bff087",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dbf3e7f654c0f06a932b8fcafac78de9d0b81d68",
                            "lessThan": "52f2ad3f7e5eb3b5908e1d685d4342519dc9cfcd",
                            "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/usb/class/usbtmc.c"
                    ],
                    "versions": [
                        {
                            "version": "4.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.259",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.93",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.35",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.12",
                            "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": "4.6",
                                    "versionEndExcluding": "5.10.259"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "5.15.210"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.1.176"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.6.143"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.12.93"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.18.35"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "7.0.12"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e794bd67b3faf98af46f958897f6b91412c7d2a9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e3eec3005de44e7f37d8d7724be636446516ab42"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ae87f505917e703ae3b487d9663d78826ff43608"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5de7df75ef3a2756b25fe3d582a4a2970444fe5a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/69020fa089f1bf0e1a10a15265f31b143a846409"
                },
                {
                    "url": "https://git.kernel.org/stable/c/75f6d3da2cc646983f41807ef98851569c12bca9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f141b01eaa58ac7e323931d670318aa247bff087"
                },
                {
                    "url": "https://git.kernel.org/stable/c/52f2ad3f7e5eb3b5908e1d685d4342519dc9cfcd"
                }
            ],
            "title": "usb: usbtmc: check URB actual_length for interrupt-IN notifications",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}