{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93118",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-17T16:02:15.086Z",
        "datePublished": "2026-09-17T16:11:25.186Z",
        "dateUpdated": "2026-10-19T09:05:51.880Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:05:51.880Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: aspeed_udc: check endpoint DMA allocation\n\nast_udc_probe() allocates a coherent DMA buffer used as the backing store\nfor endpoint buffers. ast_udc_init_ep() derives per-endpoint buffer\npointers from udc->ep0_buf, so a failed allocation is dereferenced during\nprobe.\n\nCheck the allocation before endpoint setup. The existing probe error path\ncalled ast_udc_remove(), which unregisters the gadget unconditionally and\nis not safe before usb_add_gadget_udc() succeeds. Add a local cleanup\nhelper for probe failures so pre-registration failures only unwind the\nresources that were actually initialized.\n\nThis was found by a local static analysis checker for unchecked allocator\nreturns while scanning Linux 6.16. The change was checked by applying it\nto current mainline and by running checkpatch. I do not have access to\nAspeed UDC hardware, so no runtime testing was performed."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/usb/gadget/udc/aspeed_udc.c"
                    ],
                    "versions": [
                        {
                            "version": "055276c1320564b0192b3af323b8cc67f9b665e1",
                            "lessThan": "d7ae1a48e70e9c3451b7dc7bc3896c82884bc4df",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "055276c1320564b0192b3af323b8cc67f9b665e1",
                            "lessThan": "4aaad88f857498ed1294f061f0b25d27ae891c55",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "055276c1320564b0192b3af323b8cc67f9b665e1",
                            "lessThan": "6182e708e2e1f55521c8a01d7535630ecc2d7df9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "055276c1320564b0192b3af323b8cc67f9b665e1",
                            "lessThan": "ff6e88e29965bd06f640e59acdcf0bbf04a7f55c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "055276c1320564b0192b3af323b8cc67f9b665e1",
                            "lessThan": "9e6f57107c1886052d4baaa047a2bc3d0e91be5d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "055276c1320564b0192b3af323b8cc67f9b665e1",
                            "lessThan": "97cee53a94be3bd4fd8fbed6071bd2f32dad1ab1",
                            "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/udc/aspeed_udc.c"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.0",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d7ae1a48e70e9c3451b7dc7bc3896c82884bc4df"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4aaad88f857498ed1294f061f0b25d27ae891c55"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6182e708e2e1f55521c8a01d7535630ecc2d7df9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ff6e88e29965bd06f640e59acdcf0bbf04a7f55c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9e6f57107c1886052d4baaa047a2bc3d0e91be5d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/97cee53a94be3bd4fd8fbed6071bd2f32dad1ab1"
                }
            ],
            "title": "usb: gadget: aspeed_udc: check endpoint DMA allocation",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}