{"id":"CVE-2025-39916","title":"mm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters()","summary":"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_…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < 64dc351e58271c1e9005e42f5216b4f3d7a39b66","Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < 9fe0415156fbde773b31f920201cb70b1f0e40fe","Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < 5d6eeb3c683c777ed4538eb3a650bb7da17a7cff","Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < 40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1","Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < e6b543ca9806d7bced863f43020e016ee996c057","Linux fd3e613a912bbb344ee18579cc2ad3329aacba41","Linux >= 6.0.12 < 6.1","Linux 6.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T21:12:59.655677Z"},"published":"2025-10-01","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:23:06.599Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-39916","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"}],"tags":["cve.org"],"epss":0.0015,"epssPercentile":0.04186,"ingestedAt":"2026-11-05T22:38:32.046Z","slug":"CVE-2025-39916","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < 64dc351e58271c1e9005e42f5216b4f3d7a39b66`\n- `Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < 9fe0415156fbde773b31f920201cb70b1f0e40fe`\n- `Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < 5d6eeb3c683c777ed4538eb3a650bb7da17a7cff`\n- `Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < 40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1`\n- `Linux >= f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 < e6b543ca9806d7bced863f43020e016ee996c057`\n- `Linux fd3e613a912bbb344ee18579cc2ad3329aacba41`\n- `Linux >= 6.0.12 < 6.1`\n- `Linux 6.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}