{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31722",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.134Z",
        "datePublished": "2026-05-01T14:14:24.156Z",
        "dateUpdated": "2026-05-11T22:14:29.566Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:14:29.566Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_rndis: Fix net_device lifecycle with device_move\n\nThe net_device is allocated during function instance creation and\nregistered during the bind phase with the gadget device as its sysfs\nparent. When the function unbinds, the parent device is destroyed, but\nthe net_device survives, resulting in dangling sysfs symlinks:\n\n  console:/ # ls -l /sys/class/net/usb0\n  lrwxrwxrwx ... /sys/class/net/usb0 ->\n  /sys/devices/platform/.../gadget.0/net/usb0\n  console:/ # ls -l /sys/devices/platform/.../gadget.0/net/usb0\n  ls: .../gadget.0/net/usb0: No such file or directory\n\nUse device_move() to reparent the net_device between the gadget device\ntree and /sys/devices/virtual across bind and unbind cycles. During the\nfinal unbind, calling device_move(NULL) moves the net_device to the\nvirtual device tree before the gadget device is destroyed. On rebinding,\ndevice_move() reparents the device back under the new gadget, ensuring\nproper sysfs topology and power management ordering.\n\nTo maintain compatibility with legacy composite drivers (e.g., multi.c),\nthe borrowed_net flag is used to indicate whether the network device is\nshared and pre-registered during the legacy driver's bind phase."
                }
            ],
            "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/f_rndis.c",
                        "drivers/usb/gadget/function/u_rndis.h"
                    ],
                    "versions": [
                        {
                            "version": "f466c6353819326873fa48a02c6f2d7c903240d6",
                            "lessThan": "1ef251aa63972fe6c0f107f5abd139b7d0f7987a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f466c6353819326873fa48a02c6f2d7c903240d6",
                            "lessThan": "18ada801899f2b13ef0ceff42427ad980a41e619",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f466c6353819326873fa48a02c6f2d7c903240d6",
                            "lessThan": "6045ea5ca6e3fa13f8a9fafb1c535c86e124c14d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f466c6353819326873fa48a02c6f2d7c903240d6",
                            "lessThan": "e367599529dc42578545a7f85fde517b35b3cda7",
                            "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/gadget/function/f_rndis.c",
                        "drivers/usb/gadget/function/u_rndis.h"
                    ],
                    "versions": [
                        {
                            "version": "3.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.81",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.22",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.12",
                            "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": "3.11",
                                    "versionEndExcluding": "6.12.81"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.11",
                                    "versionEndExcluding": "6.18.22"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.11",
                                    "versionEndExcluding": "6.19.12"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.11",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1ef251aa63972fe6c0f107f5abd139b7d0f7987a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/18ada801899f2b13ef0ceff42427ad980a41e619"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6045ea5ca6e3fa13f8a9fafb1c535c86e124c14d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e367599529dc42578545a7f85fde517b35b3cda7"
                }
            ],
            "title": "usb: gadget: f_rndis: Fix net_device lifecycle with device_move",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}