{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31727",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.134Z",
        "datePublished": "2026-05-01T14:14:27.552Z",
        "dateUpdated": "2026-06-19T11:58:05.053Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-19T11:58:05.053Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: u_ether: Fix NULL pointer deref in eth_get_drvinfo\n\nCommit ec35c1969650 (\"usb: gadget: f_ncm: Fix net_device lifecycle with\ndevice_move\") reparents the gadget device to /sys/devices/virtual during\nunbind, clearing the gadget pointer. If the userspace tool queries on\nthe surviving interface during this detached window, this leads to a\nNULL pointer dereference.\n\nUnable to handle kernel NULL pointer dereference\nCall trace:\n eth_get_drvinfo+0x50/0x90\n ethtool_get_drvinfo+0x5c/0x1f0\n __dev_ethtool+0xaec/0x1fe0\n dev_ethtool+0x134/0x2e0\n dev_ioctl+0x338/0x560\n\nAdd a NULL check for dev->gadget in eth_get_drvinfo(). When detached,\nskip copying the fw_version and bus_info strings, which is natively\nhandled by ethtool_get_drvinfo for empty strings."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/usb/gadget/function/u_ether.c"
                    ],
                    "versions": [
                        {
                            "version": "7c97366f5dac5255e60a317ffe3a5b18f3745547",
                            "lessThan": "f9f987472f4b8ab177be2b6492a59278ed969479",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "36c41e9724c9a7a7cda37f5a4e9d94f25c8031c4",
                            "lessThan": "7fce959e9be3bf63bb0fdf4b05f9cc42cb289fe2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "93f116c3393a22acab96ad1bef12b2572eb80ca4",
                            "lessThan": "0326429e8ba99892e1d1e115dc8e88e1a3b64e24",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e584cb58a2ea7ff4d3a4bc43d5ca512ed3ecb77d",
                            "lessThan": "a36e5e800b9c93e3e1ffa42f34d38b36775dbcee",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "85acaba2f42b557499bab3608307f17bf13beb69",
                            "lessThan": "7de4d46be40738c7e48e64b5cc0a34aa1e047b0a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ec35c1969650e7cb6c8a91020e568ed46e3551b0",
                            "lessThan": "e002e92e88e12457373ed096b18716d97e7bbb20",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/usb/gadget/function/u_ether.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12.78",
                            "lessThan": "6.12.81",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.19",
                            "lessThan": "6.18.22",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.9",
                            "lessThan": "6.19.12",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.78",
                                    "versionEndExcluding": "6.12.81"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18.19",
                                    "versionEndExcluding": "6.18.22"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19.9",
                                    "versionEndExcluding": "6.19.12"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f9f987472f4b8ab177be2b6492a59278ed969479"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7fce959e9be3bf63bb0fdf4b05f9cc42cb289fe2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0326429e8ba99892e1d1e115dc8e88e1a3b64e24"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a36e5e800b9c93e3e1ffa42f34d38b36775dbcee"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7de4d46be40738c7e48e64b5cc0a34aa1e047b0a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e002e92e88e12457373ed096b18716d97e7bbb20"
                }
            ],
            "title": "usb: gadget: u_ether: Fix NULL pointer deref in eth_get_drvinfo",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}