{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53832",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-09T01:27:17.825Z",
        "datePublished": "2025-12-09T01:29:47.513Z",
        "dateUpdated": "2026-05-11T19:52:23.953Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:52:23.953Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix null-ptr-deref in raid10_sync_request\n\ninit_resync() inits mempool and sets conf->have_replacemnt at the beginning\nof sync, close_sync() frees the mempool when sync is completed.\n\nAfter [1] recovery might be skipped and init_resync() is called but\nclose_sync() is not. null-ptr-deref occurs with r10bio->dev[i].repl_bio.\n\nThe following is one way to reproduce the issue.\n\n  1) create a array, wait for resync to complete, mddev->recovery_cp is set\n     to MaxSector.\n  2) recovery is woken and it is skipped. conf->have_replacement is set to\n     0 in init_resync(). close_sync() not called.\n  3) some io errors and rdev A is set to WantReplacement.\n  4) a new device is added and set to A's replacement.\n  5) recovery is woken, A have replacement, but conf->have_replacemnt is\n     0. r10bio->dev[i].repl_bio will not be alloced and null-ptr-deref\n     occurs.\n\nFix it by not calling init_resync() if recovery skipped.\n\n[1] commit 7e83ccbecd60 (\"md/raid10: Allow skipping recovery when clean arrays are assembled\")"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/md/raid10.c"
                    ],
                    "versions": [
                        {
                            "version": "7e83ccbecd608b971f340e951c9e84cd0343002f",
                            "lessThan": "38d33593260536840b49fd1dcac9aedfd14a9d42",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e83ccbecd608b971f340e951c9e84cd0343002f",
                            "lessThan": "14964127be77884003976a392c9faa9ebaabbbe1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e83ccbecd608b971f340e951c9e84cd0343002f",
                            "lessThan": "bdbf104b1c91fbf38f82c522ebf75429f094292a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e83ccbecd608b971f340e951c9e84cd0343002f",
                            "lessThan": "68695084077e3de9d3e94e09238ace2b6f246446",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e83ccbecd608b971f340e951c9e84cd0343002f",
                            "lessThan": "b50fd1c3d9d0175aa29ff2706ef36cc178bc356a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e83ccbecd608b971f340e951c9e84cd0343002f",
                            "lessThan": "99b503e4edc5938885d839cf0e7571963f75d800",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e83ccbecd608b971f340e951c9e84cd0343002f",
                            "lessThan": "9e9efc77efd1956cc244af975240f2513d78a371",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e83ccbecd608b971f340e951c9e84cd0343002f",
                            "lessThan": "a405c6f0229526160aa3f177f65e20c86fce84c5",
                            "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/md/raid10.c"
                    ],
                    "versions": [
                        {
                            "version": "3.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.10",
                            "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": "5.15.111",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.28",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.15",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3.2",
                            "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": "3.10",
                                    "versionEndExcluding": "4.19.283"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "5.4.243"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "5.10.180"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "5.15.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "6.1.28"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "6.2.15"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "6.3.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "6.4"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/38d33593260536840b49fd1dcac9aedfd14a9d42"
                },
                {
                    "url": "https://git.kernel.org/stable/c/14964127be77884003976a392c9faa9ebaabbbe1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bdbf104b1c91fbf38f82c522ebf75429f094292a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/68695084077e3de9d3e94e09238ace2b6f246446"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b50fd1c3d9d0175aa29ff2706ef36cc178bc356a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/99b503e4edc5938885d839cf0e7571963f75d800"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9e9efc77efd1956cc244af975240f2513d78a371"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a405c6f0229526160aa3f177f65e20c86fce84c5"
                }
            ],
            "title": "md/raid10: fix null-ptr-deref in raid10_sync_request",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}