{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-39909",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.146Z",
        "datePublished": "2025-10-01T07:44:32.936Z",
        "dateUpdated": "2026-05-11T21:38:45.192Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:38:45.192Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/lru_sort: avoid divide-by-zero in damon_lru_sort_apply_parameters()\n\nPatch series \"mm/damon: avoid divide-by-zero in DAMON module's parameters\napplication\".\n\nDAMON's RECLAIM and LRU_SORT modules perform no validation on\nuser-configured parameters during application, which may lead to\ndivision-by-zero errors.\n\nAvoid the divide-by-zero by adding validation checks when DAMON modules\nattempt to apply the parameters.\n\n\nThis patch (of 2):\n\nDuring the calculation of 'hot_thres' and 'cold_thres', either\n'sample_interval' or 'aggr_interval' is used as the divisor, which may\nlead to division-by-zero errors.  Fix it by directly returning -EINVAL\nwhen such a case occurs.  Additionally, since 'aggr_interval' is already\nrequired to be set no smaller than 'sample_interval' in damon_set_attrs(),\nonly the case where 'sample_interval' is zero needs to be checked."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "mm/damon/lru_sort.c"
                    ],
                    "versions": [
                        {
                            "version": "40e983cca9274e177bd5b9379299b44d9536ac68",
                            "lessThan": "74e391f7da7d9d5235a3cca88ee9fc18f720c75b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "40e983cca9274e177bd5b9379299b44d9536ac68",
                            "lessThan": "7bb675c9f0257840d33e5d1337d7e3afdd74a6bf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "40e983cca9274e177bd5b9379299b44d9536ac68",
                            "lessThan": "af0ae62b935317bed1a1361c8c9579db9d300e70",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "40e983cca9274e177bd5b9379299b44d9536ac68",
                            "lessThan": "326a4b3750c71af3f3c52399ec4dbe33b6da4c26",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "40e983cca9274e177bd5b9379299b44d9536ac68",
                            "lessThan": "711f19dfd783ffb37ca4324388b9c4cb87e71363",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "mm/damon/lru_sort.c"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.153",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.107",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.48",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.8",
                            "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": "6.0",
                                    "versionEndExcluding": "6.1.153"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.6.107"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.12.48"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.16.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.17"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/74e391f7da7d9d5235a3cca88ee9fc18f720c75b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7bb675c9f0257840d33e5d1337d7e3afdd74a6bf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/af0ae62b935317bed1a1361c8c9579db9d300e70"
                },
                {
                    "url": "https://git.kernel.org/stable/c/326a4b3750c71af3f3c52399ec4dbe33b6da4c26"
                },
                {
                    "url": "https://git.kernel.org/stable/c/711f19dfd783ffb37ca4324388b9c4cb87e71363"
                }
            ],
            "title": "mm/damon/lru_sort: avoid divide-by-zero in damon_lru_sort_apply_parameters()",
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        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2025-11-03T17:44:35.076Z"
                }
            }
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    }
}