CVE-2025-39916

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

State: Published
Severity: Not scored
Published: Oct 1, 2025
Updated: May 23, 2026
Reserved: Apr 16, 2025

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before 64dc351e58271c1e9005e42f5216b4f3d7a39b66Affected f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before 9fe0415156fbde773b31f920201cb70b1f0e40feAffected f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before 5d6eeb3c683c777ed4538eb3a650bb7da17a7cffAffected f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before 40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1Affected f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before e6b543ca9806d7bced863f43020e016ee996c057Affected fd3e613a912bbb344ee18579cc2ad3329aacba41Affected 6.0.12 to before 6.1Affected
LinuxLinux	6.1Affected before 6.1Not affected 6.1.153 through 6.1.Not affected 6.6.107 through 6.6.Not affected 6.12.48 through 6.12.Not affected 6.16.8 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before 64dc351e58271c1e9005e42f5216b4f3d7a39b66Affected
f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before 9fe0415156fbde773b31f920201cb70b1f0e40feAffected
f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before 5d6eeb3c683c777ed4538eb3a650bb7da17a7cffAffected
f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before 40cb9b38b645126fdd1d6aa3d6811a8ad50ddfa1Affected
f5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 to before e6b543ca9806d7bced863f43020e016ee996c057Affected
fd3e613a912bbb344ee18579cc2ad3329aacba41Affected
6.0.12 to before 6.1Affected

LinuxLinux

6.1Affected
before 6.1Not affected
6.1.153 through 6.1.*Not affected
6.6.107 through 6.6.*Not affected
6.12.48 through 6.12.*Not affected
6.16.8 through 6.16.*Not affected
6.17 and laterNot affected

References

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