{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53839",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-09T01:27:17.826Z",
        "datePublished": "2025-12-09T01:29:55.540Z",
        "dateUpdated": "2026-05-11T19:52:30.888Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:52:30.888Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndccp: fix data-race around dp->dccps_mss_cache\n\ndccp_sendmsg() reads dp->dccps_mss_cache before locking the socket.\nSame thing in do_dccp_getsockopt().\n\nAdd READ_ONCE()/WRITE_ONCE() annotations,\nand change dccp_sendmsg() to check again dccps_mss_cache\nafter socket is locked."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/dccp/output.c",
                        "net/dccp/proto.c"
                    ],
                    "versions": [
                        {
                            "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
                            "lessThan": "162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
                            "lessThan": "2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
                            "lessThan": "67eebc7a9217f999b779d46fba5312a716f0dc1d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
                            "lessThan": "6d701c95ee6463abcbb6da543060d6e444554135",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
                            "lessThan": "f239c9e1d98b313435481b4926e8bdd06197e4d8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
                            "lessThan": "a6ddc1c774874dc704f96a99d015dc759627bba7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
                            "lessThan": "d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
                            "lessThan": "a47e598fbd8617967e49d85c49c22f9fc642704c",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/dccp/output.c",
                        "net/dccp/proto.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.323",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.292",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.254",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.191",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.127",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.46",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4.11",
                            "lessThanOrEqual": "6.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.5",
                            "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": "2.6.14",
                                    "versionEndExcluding": "4.14.323"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.14",
                                    "versionEndExcluding": "4.19.292"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.14",
                                    "versionEndExcluding": "5.4.254"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.14",
                                    "versionEndExcluding": "5.10.191"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.14",
                                    "versionEndExcluding": "5.15.127"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.14",
                                    "versionEndExcluding": "6.1.46"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.14",
                                    "versionEndExcluding": "6.4.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.14",
                                    "versionEndExcluding": "6.5"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817"
                },
                {
                    "url": "https://git.kernel.org/stable/c/67eebc7a9217f999b779d46fba5312a716f0dc1d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6d701c95ee6463abcbb6da543060d6e444554135"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f239c9e1d98b313435481b4926e8bdd06197e4d8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a6ddc1c774874dc704f96a99d015dc759627bba7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a47e598fbd8617967e49d85c49c22f9fc642704c"
                }
            ],
            "title": "dccp: fix data-race around dp->dccps_mss_cache",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}