{"id":"CVE-2025-39916","state":"PUBLISHED","title":"mm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters()\n\nWhen creating a new scheme of DAMON_RECLAIM, the calculation of\n'min_age_region' uses 'aggr_interval' as the divisor, which may lead to\ndivision-by-zero errors.  Fix it by directly returning -EINVAL when such a\ncase occurs.","publishedAt":"2025-10-01T07:44:38.690Z","updatedAt":"2026-05-23T16:00:58.214Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"64dc351e58271c1e9005e42f5216b4f3d7a39b66","versionType":"git"},{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"9fe0415156fbde773b31f920201cb70b1f0e40fe","versionType":"git"},{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"5d6eeb3c683c777ed4538eb3a650bb7da17a7cff","versionType":"git"},{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1","versionType":"git"},{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"e6b543ca9806d7bced863f43020e016ee996c057","versionType":"git"},{"version":"fd3e613a912bbb344ee18579cc2ad3329aacba41","status":"affected","versionType":"git"},{"version":"6.0.12","status":"affected","lessThan":"6.1","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/damon/reclaim.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.153","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.107","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.48","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.16.8","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/damon/reclaim.c"]}],"references":["https://git.kernel.org/stable/c/64dc351e58271c1e9005e42f5216b4f3d7a39b66","https://git.kernel.org/stable/c/9fe0415156fbde773b31f920201cb70b1f0e40fe","https://git.kernel.org/stable/c/5d6eeb3c683c777ed4538eb3a650bb7da17a7cff","https://git.kernel.org/stable/c/40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1","https://git.kernel.org/stable/c/e6b543ca9806d7bced863f43020e016ee996c057","https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/39xxx/CVE-2025-39916.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39916","state":"PUBLISHED","datePublished":"2025-10-01T07:44:38.690Z","dateUpdated":"2026-05-23T16:00:58.214Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.147Z"},"containers":{"cna":{"title":"mm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters()\n\nWhen creating a new scheme of DAMON_RECLAIM, the calculation of\n'min_age_region' uses 'aggr_interval' as the divisor, which may lead to\ndivision-by-zero errors.  Fix it by directly returning -EINVAL when such a\ncase occurs."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"64dc351e58271c1e9005e42f5216b4f3d7a39b66","versionType":"git"},{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"9fe0415156fbde773b31f920201cb70b1f0e40fe","versionType":"git"},{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"5d6eeb3c683c777ed4538eb3a650bb7da17a7cff","versionType":"git"},{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1","versionType":"git"},{"version":"f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05","status":"affected","lessThan":"e6b543ca9806d7bced863f43020e016ee996c057","versionType":"git"},{"version":"fd3e613a912bbb344ee18579cc2ad3329aacba41","status":"affected","versionType":"git"},{"version":"6.0.12","status":"affected","lessThan":"6.1","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/damon/reclaim.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.153","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.107","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.48","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.16.8","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/damon/reclaim.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/64dc351e58271c1e9005e42f5216b4f3d7a39b66"},{"url":"https://git.kernel.org/stable/c/9fe0415156fbde773b31f920201cb70b1f0e40fe"},{"url":"https://git.kernel.org/stable/c/5d6eeb3c683c777ed4538eb3a650bb7da17a7cff"},{"url":"https://git.kernel.org/stable/c/40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1"},{"url":"https://git.kernel.org/stable/c/e6b543ca9806d7bced863f43020e016ee996c057"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T16:00:58.214Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.153"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.6.107"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.12.48"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.16.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0.12"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T17:44:38.840Z"}}]}}}