{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53551",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-04T15:14:15.922Z",
        "datePublished": "2025-10-04T15:16:57.736Z",
        "dateUpdated": "2026-05-11T19:47:09.678Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:47:09.678Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: u_serial: Add null pointer check in gserial_resume\n\nConsider a case where gserial_disconnect has already cleared\ngser->ioport. And if a wakeup interrupt triggers afterwards,\ngserial_resume gets called, which will lead to accessing of\ngser->ioport and thus causing null pointer dereference.Add\na null pointer check to prevent this.\n\nAdded a static spinlock to prevent gser->ioport from becoming\nnull after the newly added check."
                }
            ],
            "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_serial.c"
                    ],
                    "versions": [
                        {
                            "version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3",
                            "lessThan": "c5360eec648bd506afa304ae4a71f82e13d41897",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3",
                            "lessThan": "3b24c980dc07be4550a9d1450ed7057f882530e5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3",
                            "lessThan": "ec357cd3e8af614855d286dd378725cdc7264df6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3",
                            "lessThan": "44e004f757a7ae13dfebaadbcfdb1a6f98c10377",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3",
                            "lessThan": "5ec63fdbca604568890c577753c6f66c5b3ef0b5",
                            "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/u_serial.c"
                    ],
                    "versions": [
                        {
                            "version": "5.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.171",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.97",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.15",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.2",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "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": "5.8",
                                    "versionEndExcluding": "5.10.171"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "5.15.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.1.15"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.2.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5"
                }
            ],
            "title": "usb: gadget: u_serial: Add null pointer check in gserial_resume",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}