{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53450",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-09-17T14:54:09.754Z",
        "datePublished": "2025-10-01T11:42:22.074Z",
        "dateUpdated": "2026-05-11T19:45:14.540Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:45:14.540Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: remove a BUG_ON in ext4_mb_release_group_pa()\n\nIf a malicious fuzzer overwrites the ext4 superblock while it is\nmounted such that the s_first_data_block is set to a very large\nnumber, the calculation of the block group can underflow, and trigger\na BUG_ON check.  Change this to be an ext4_warning so that we don't\ncrash the kernel."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ext4/mballoc.c"
                    ],
                    "versions": [
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                            "version": "c9de560ded61faa5b754137b7753da252391c55a",
                            "lessThan": "d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9de560ded61faa5b754137b7753da252391c55a",
                            "lessThan": "ef16d8a1798db1a1604ac44ca1bd73ec6bebf483",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9de560ded61faa5b754137b7753da252391c55a",
                            "lessThan": "185062a21976fbc38f2efd296951b02c4500cf65",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "lessThan": "b0fc279de4bf17e1710bb7e83906538ff8f11111",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9de560ded61faa5b754137b7753da252391c55a",
                            "lessThan": "978e5e9111af18741449b81fefd531a622dd969a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9de560ded61faa5b754137b7753da252391c55a",
                            "lessThan": "d87a4e4094c9879fc8acdff8ce59fdffa979c8e0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9de560ded61faa5b754137b7753da252391c55a",
                            "lessThan": "bf2a16eb4e6d06124bd8436d4546f61539a65f29",
                            "status": "affected",
                            "versionType": "git"
                        },
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                            "version": "c9de560ded61faa5b754137b7753da252391c55a",
                            "lessThan": "53c14e7cc2257191ba15425c15638fc4f8abb92b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9de560ded61faa5b754137b7753da252391c55a",
                            "lessThan": "463808f237cf73e98a1a45ff7460c2406a150a0b",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ext4/mballoc.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.25",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.25",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.315",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.283",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.243",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.180",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.112",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.29",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.16",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3.3",
                            "lessThanOrEqual": "6.3.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4",
                            "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": "2.6.25",
                                    "versionEndExcluding": "4.14.315"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "4.19.283"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "5.4.243"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionStartIncluding": "2.6.25",
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                                },
                                {
                                    "vulnerable": true,
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                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "6.3.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "6.4"
                                }
                            ]
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ef16d8a1798db1a1604ac44ca1bd73ec6bebf483"
                },
                {
                    "url": "https://git.kernel.org/stable/c/185062a21976fbc38f2efd296951b02c4500cf65"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b0fc279de4bf17e1710bb7e83906538ff8f11111"
                },
                {
                    "url": "https://git.kernel.org/stable/c/978e5e9111af18741449b81fefd531a622dd969a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d87a4e4094c9879fc8acdff8ce59fdffa979c8e0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bf2a16eb4e6d06124bd8436d4546f61539a65f29"
                },
                {
                    "url": "https://git.kernel.org/stable/c/53c14e7cc2257191ba15425c15638fc4f8abb92b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/463808f237cf73e98a1a45ff7460c2406a150a0b"
                }
            ],
            "title": "ext4: remove a BUG_ON in ext4_mb_release_group_pa()",
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                "engine": "bippy-1.2.0"
            }
        }
    }
}