Medium 5.5Published Oct 1, 2025

CVE-2025-39916mm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters()

Updated under an hour ago (Oct 28, 2026, 4:23 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: mm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters() When creating a new scheme of DAMON_RECLAIM, the calculation of 'min_age_region' uses 'aggr_interval' as the divisor, which may lead to division-by-zero errors. Fix it by directly returning -EINVAL when such a case occurs.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 23, 2026
First seen by InfoSec Signals: Oct 19, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 before 64dc351e58271c1e9005e42f5216b4f3d7a39b66; from f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 before 9fe0415156fbde773b31f920201cb70b1f0e40fe; from f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 before 5d6eeb3c683c777ed4538eb3a650bb7da17a7cff; from f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 before 40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1; from f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 before e6b543ca9806d7bced863f43020e016ee996c057; fd3e613a912bbb344ee18579cc2ad3329aacba41; from 6.0.12 before 6.1	CNA record
linux linux_kernel linux:linux_kernel	from 6.0.12 before 6.1.153; from 6.2 before 6.6.107; from 6.7 before 6.12.48; from 6.13 before 6.16.8; 6.17; 6.17; 6.17; 6.17; and 1 more ranges	NVD
debian debian_linux debian:debian_linux	11.0	NVD

References

References

https://git.kernel.org/stable/c/64dc351e58271c1e9005e42f5216b4f3d7a39b66	patch
https://git.kernel.org/stable/c/9fe0415156fbde773b31f920201cb70b1f0e40fe	patch
https://git.kernel.org/stable/c/5d6eeb3c683c777ed4538eb3a650bb7da17a7cff	patch
https://git.kernel.org/stable/c/40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1	patch
https://git.kernel.org/stable/c/e6b543ca9806d7bced863f43020e016ee996c057	patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	mailing-list, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.