CVE-2025-39916

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.

Score

CVSS 3.1 5.5 Medium

Status

Analyzed - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2025-10-01

Last modified

2026-10-19

Weaknesses

CWE-369

Affected products

• Debian Linux (Debian)
• Linux Kernel (Linux)

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