{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38584",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:24.026Z",
        "datePublished": "2025-08-19T17:03:06.172Z",
        "dateUpdated": "2026-06-01T16:05:23.819Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-01T16:05:23.819Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npadata: Fix pd UAF once and for all\n\nThere is a race condition/UAF in padata_reorder that goes back\nto the initial commit.  A reference count is taken at the start\nof the process in padata_do_parallel, and released at the end in\npadata_serial_worker.\n\nThis reference count is (and only is) required for padata_replace\nto function correctly.  If padata_replace is never called then\nthere is no issue.\n\nIn the function padata_reorder which serves as the core of padata,\nas soon as padata is added to queue->serial.list, and the associated\nspin lock released, that padata may be processed and the reference\ncount on pd would go away.\n\nFix this by getting the next padata before the squeue->serial lock\nis released.\n\nIn order to make this possible, simplify padata_reorder by only\ncalling it once the next padata arrives."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/padata.h",
                        "kernel/padata.c"
                    ],
                    "versions": [
                        {
                            "version": "16295bec6398a3eedc9377e1af6ff4c71b98c300",
                            "lessThan": "a2048e475e22b13dc3e53d485b7e6e11464ed9a6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16295bec6398a3eedc9377e1af6ff4c71b98c300",
                            "lessThan": "73f132e60857038416540c3599b1de6033d7575a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16295bec6398a3eedc9377e1af6ff4c71b98c300",
                            "lessThan": "609e59193fc6d9dd323f1c6ae1fdd721f1c79680",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16295bec6398a3eedc9377e1af6ff4c71b98c300",
                            "lessThan": "a11a12a9880ab37342b73c93cfe1a3ada02ff0db",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16295bec6398a3eedc9377e1af6ff4c71b98c300",
                            "lessThan": "f231d5d001ec75f5886c02d496a4c79edc383d45",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16295bec6398a3eedc9377e1af6ff4c71b98c300",
                            "lessThan": "dbe3e911a59bda6de96e7cae387ff882c2c177fa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16295bec6398a3eedc9377e1af6ff4c71b98c300",
                            "lessThan": "cdf79bd2e1ecb3cc75631c73d8f4149be6019a52",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "16295bec6398a3eedc9377e1af6ff4c71b98c300",
                            "lessThan": "71203f68c7749609d7fc8ae6ad054bdedeb24f91",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/padata.h",
                        "kernel/padata.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.34",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.34",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.258",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.140",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.86",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.10",
                            "lessThanOrEqual": "6.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.1",
                            "lessThanOrEqual": "6.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17",
                            "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": "2.6.34",
                                    "versionEndExcluding": "5.10.258"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "5.15.209"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
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                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
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                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "6.12.86"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "6.16.1"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "6.17"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a2048e475e22b13dc3e53d485b7e6e11464ed9a6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/73f132e60857038416540c3599b1de6033d7575a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/609e59193fc6d9dd323f1c6ae1fdd721f1c79680"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a11a12a9880ab37342b73c93cfe1a3ada02ff0db"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f231d5d001ec75f5886c02d496a4c79edc383d45"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dbe3e911a59bda6de96e7cae387ff882c2c177fa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cdf79bd2e1ecb3cc75631c73d8f4149be6019a52"
                },
                {
                    "url": "https://git.kernel.org/stable/c/71203f68c7749609d7fc8ae6ad054bdedeb24f91"
                }
            ],
            "title": "padata: Fix pd UAF once and for all",
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}