{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2025-39909","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-10-01T08:15:33.850","lastModified":"2026-10-19T21:10:00.160","vulnStatus":"Analyzed","cveTags":[],"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."},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmm/damon/lru_sort: evitar división por cero en damon_lru_sort_apply_parameters()\n\nSerie de parches 'mm/damon: evitar división por cero en la aplicación de parámetros del módulo DAMON'.\n\nLos módulos RECLAIM y LRU_SORT de DAMON no realizan validación sobre los parámetros configurados por el usuario durante la aplicación, lo que puede llevar a errores de división por cero.\n\nEvitar la división por cero añadiendo comprobaciones de validación cuando los módulos DAMON intentan aplicar los parámetros.\n\nEste parche (de 2):\n\nDurante el cálculo de 'hot_thres' y 'cold_thres', se utiliza 'sample_interval' o 'aggr_interval' como divisor, lo que puede llevar a errores de división por cero. Solucionarlo devolviendo directamente -EINVAL cuando ocurre tal caso. Además, dado que ya se requiere que 'aggr_interval' se establezca no menor que 'sample_interval' en damon_set_attrs(), solo el caso en que 'sample_interval' es cero necesita ser comprobado."}],"affected":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","affectedData":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["mm/damon/lru_sort.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"40e983cca9274e177bd5b9379299b44d9536ac68","lessThan":"74e391f7da7d9d5235a3cca88ee9fc18f720c75b","versionType":"git","status":"affected"},{"version":"40e983cca9274e177bd5b9379299b44d9536ac68","lessThan":"7bb675c9f0257840d33e5d1337d7e3afdd74a6bf","versionType":"git","status":"affected"},{"version":"40e983cca9274e177bd5b9379299b44d9536ac68","lessThan":"af0ae62b935317bed1a1361c8c9579db9d300e70","versionType":"git","status":"affected"},{"version":"40e983cca9274e177bd5b9379299b44d9536ac68","lessThan":"326a4b3750c71af3f3c52399ec4dbe33b6da4c26","versionType":"git","status":"affected"},{"version":"40e983cca9274e177bd5b9379299b44d9536ac68","lessThan":"711f19dfd783ffb37ca4324388b9c4cb87e71363","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["mm/damon/lru_sort.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","versionType":"semver","status":"unaffected"},{"version":"6.1.153","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.107","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.48","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.16.8","lessThanOrEqual":"6.16.*","versionType":"semver","status":"unaffected"},{"version":"6.17","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-369"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.153","matchCriteriaId":"77E8E220-CDA8-432B-980E-D968AF86048A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.107","matchCriteriaId":"D273EDA6-2CFE-4EBD-B024-62EB057830F3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.48","matchCriteriaId":"9652E701-5C8E-49CF-89A5-499E214A5902"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.16.8","matchCriteriaId":"8DA00A4E-AABB-4A69-AB39-67B22D0B36D2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*","matchCriteriaId":"327D22EF-390B-454C-BD31-2ED23C998A1C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*","matchCriteriaId":"C730CD9A-D969-4A8E-9522-162AAF7C0EE9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*","matchCriteriaId":"39982C4B-716E-4B2F-8196-FA301F47807D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*","matchCriteriaId":"340BEEA9-D70D-4290-B502-FBB1032353B1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*","matchCriteriaId":"47E4C5C0-079F-4838-971B-8C503D48FCC2"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","matchCriteriaId":"FA6FEEC2-9F11-4643-8827-749718254FED"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/326a4b3750c71af3f3c52399ec4dbe33b6da4c26","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/711f19dfd783ffb37ca4324388b9c4cb87e71363","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/74e391f7da7d9d5235a3cca88ee9fc18f720c75b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/7bb675c9f0257840d33e5d1337d7e3afdd74a6bf","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/af0ae62b935317bed1a1361c8c9579db9d300e70","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","source":"af854a3a-2127-422b-91ae-36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