{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53304",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-09-16T08:09:37.994Z",
        "datePublished": "2025-09-16T16:11:44.147Z",
        "dateUpdated": "2026-05-23T15:28:30.909Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:28:30.909Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_rbtree: fix overlap expiration walk\n\nThe lazy gc on insert that should remove timed-out entries fails to release\nthe other half of the interval, if any.\n\nCan be reproduced with tests/shell/testcases/sets/0044interval_overlap_0\nin nftables.git and kmemleak enabled kernel.\n\nSecond bug is the use of rbe_prev vs. prev pointer.\nIf rbe_prev() returns NULL after at least one iteration, rbe_prev points\nto element that is not an end interval, hence it should not be removed.\n\nLastly, check the genmask of the end interval if this is active in the\ncurrent generation."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/netfilter/nft_set_rbtree.c"
                    ],
                    "versions": [
                        {
                            "version": "7ab87a326f20c52ff4d9972052d085be951c704b",
                            "lessThan": "8284a79136c384059e85e278da2210b809730287",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "181859bdfb9734aca449512fccaee4cacce64aed",
                            "lessThan": "acaee227cf79c45a5d2d49c3e9a66333a462802c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4aacf3d78424293e318c616016865380b37b9cc5",
                            "lessThan": "893cb3c3513cf661a0ff45fe0cfa83fe27131f76",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2bf1435fa19d2c58054391b3bba40d5510a5758c",
                            "lessThan": "50cbb9d195c197af671869c8cadce3bd483735a0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "318cb24a4c3fce8140afaf84e4d45fcb76fb280b",
                            "lessThan": "89a4d1a89751a0fbd520e64091873e19cc0979e8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9e6978e2725a7d4b6cd23b2facd3f11422c0643",
                            "lessThan": "cd66733932399475fe933cb3ec03e687ed401462",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9e6978e2725a7d4b6cd23b2facd3f11422c0643",
                            "lessThan": "f718863aca469a109895cb855e6b81fff4827d71",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.166",
                            "lessThan": "5.10.190",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.91",
                            "lessThan": "5.15.124",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.9",
                            "lessThan": "6.1.43",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/netfilter/nft_set_rbtree.c"
                    ],
                    "versions": [
                        {
                            "version": "6.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.190",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.124",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.43",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4.8",
                            "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": "5.10.166",
                                    "versionEndExcluding": "5.10.190"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15.91",
                                    "versionEndExcluding": "5.15.124"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.9",
                                    "versionEndExcluding": "6.1.43"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.4.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.5"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8284a79136c384059e85e278da2210b809730287"
                },
                {
                    "url": "https://git.kernel.org/stable/c/acaee227cf79c45a5d2d49c3e9a66333a462802c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/893cb3c3513cf661a0ff45fe0cfa83fe27131f76"
                },
                {
                    "url": "https://git.kernel.org/stable/c/50cbb9d195c197af671869c8cadce3bd483735a0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/89a4d1a89751a0fbd520e64091873e19cc0979e8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cd66733932399475fe933cb3ec03e687ed401462"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f718863aca469a109895cb855e6b81fff4827d71"
                }
            ],
            "title": "netfilter: nft_set_rbtree: fix overlap expiration walk",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2023-53304",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-01-14T18:22:49.464474Z"
                            }
                        }
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-476",
                                "description": "CWE-476 NULL Pointer Dereference"
                            }
                        ]
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-01-14T18:22:59.263Z"
                }
            }
        ]
    }
}