{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53476",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-01T11:39:39.401Z",
        "datePublished": "2025-10-01T11:42:45.499Z",
        "dateUpdated": "2026-05-11T19:45:43.579Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:45:43.579Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry()\n\nThis condition needs to match the previous \"if (epcp->state == LISTEN) {\"\nexactly to avoid a NULL dereference of either \"listen_ep\" or \"ep\". The\nproblem is that \"epcp\" has been re-assigned so just testing\n\"if (epcp->state == LISTEN) {\" a second time is not sufficient."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/hw/cxgb4/restrack.c"
                    ],
                    "versions": [
                        {
                            "version": "116aeb8873712ea559d26b0d9d88147af5c88db5",
                            "lessThan": "76e0396313c79ecd0df44ee3c18745cfac52b3e6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "116aeb8873712ea559d26b0d9d88147af5c88db5",
                            "lessThan": "24278dc380aab6a1aef0a75317f57ad4c2453cf6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "116aeb8873712ea559d26b0d9d88147af5c88db5",
                            "lessThan": "dd55240e4364d64befcc575b0d33091881524f42",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "116aeb8873712ea559d26b0d9d88147af5c88db5",
                            "lessThan": "4ca446b127c568b59cb8d9748b6f70499624bb18",
                            "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/infiniband/hw/cxgb4/restrack.c"
                    ],
                    "versions": [
                        {
                            "version": "4.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.99",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.16",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.3",
                            "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": "4.18",
                                    "versionEndExcluding": "5.15.99"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.18",
                                    "versionEndExcluding": "6.1.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.18",
                                    "versionEndExcluding": "6.2.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.18",
                                    "versionEndExcluding": "6.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/76e0396313c79ecd0df44ee3c18745cfac52b3e6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/24278dc380aab6a1aef0a75317f57ad4c2453cf6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dd55240e4364d64befcc575b0d33091881524f42"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4ca446b127c568b59cb8d9748b6f70499624bb18"
                }
            ],
            "title": "iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry()",
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                "engine": "bippy-1.2.0"
            }
        }
    }
}