{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31755",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.139Z",
        "datePublished": "2026-05-01T14:14:46.288Z",
        "dateUpdated": "2026-07-04T11:50:33.684Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-04T11:50:33.684Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: gadget: fix NULL pointer dereference in ep_queue\n\nWhen the gadget endpoint is disabled or not yet configured, the ep->desc\npointer can be NULL. This leads to a NULL pointer dereference when\n__cdns3_gadget_ep_queue() is called, causing a kernel crash.\n\nAdd a check to return -ESHUTDOWN if ep->desc is NULL, which is the\nstandard return code for unconfigured endpoints.\n\nThis prevents potential crashes when ep_queue is called on endpoints\nthat are not ready."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/usb/cdns3/cdns3-gadget.c"
                    ],
                    "versions": [
                        {
                            "version": "7733f6c32e36ff9d7adadf40001039bf219b1cbe",
                            "lessThan": "3cf0580a09d417eab41ce914a11f9cde3a121871",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7733f6c32e36ff9d7adadf40001039bf219b1cbe",
                            "lessThan": "3d1433fe34b224b90259e207e5389e95b504ef04",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7733f6c32e36ff9d7adadf40001039bf219b1cbe",
                            "lessThan": "fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7733f6c32e36ff9d7adadf40001039bf219b1cbe",
                            "lessThan": "9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7733f6c32e36ff9d7adadf40001039bf219b1cbe",
                            "lessThan": "d61446dfc9d387775bb1b95b081953201b9222af",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7733f6c32e36ff9d7adadf40001039bf219b1cbe",
                            "lessThan": "390536cc6af4ca5566bc3bf1f8b704700380cd2c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7733f6c32e36ff9d7adadf40001039bf219b1cbe",
                            "lessThan": "14bf08ab2cdfcdfd3f13e799d06692a1b3e0745f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7733f6c32e36ff9d7adadf40001039bf219b1cbe",
                            "lessThan": "7f6f127b9bc34bed35f56faf7ecb1561d6b39000",
                            "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/cdns3/cdns3-gadget.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.260",
                            "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": "6.6.134",
                            "lessThanOrEqual": "6.6.*",
                            "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": "5.4",
                                    "versionEndExcluding": "5.10.260"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "5.15.203"
                                },
                                {
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                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.6.134"
                                },
                                {
                                    "vulnerable": true,
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                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.12.81"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "7.0"
                                }
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3cf0580a09d417eab41ce914a11f9cde3a121871"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3d1433fe34b224b90259e207e5389e95b504ef04"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d61446dfc9d387775bb1b95b081953201b9222af"
                },
                {
                    "url": "https://git.kernel.org/stable/c/390536cc6af4ca5566bc3bf1f8b704700380cd2c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/14bf08ab2cdfcdfd3f13e799d06692a1b3e0745f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7f6f127b9bc34bed35f56faf7ecb1561d6b39000"
                }
            ],
            "title": "usb: cdns3: gadget: fix NULL pointer dereference in ep_queue",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}