CVE-2025-39916

Name	CVE-2025-39916
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4328-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bookworm	6.1.176-1	fixed
	bookworm (security)	6.1.187-1	fixed
	trixie (security), trixie	6.12.107-1	fixed
	forky	7.1.13-1	fixed
	sid	7.2.6-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
linux	source	bullseye	(not affected)
linux	source	bookworm	6.1.153-1
linux	source	trixie	6.12.48-1
linux	source	(unstable)	6.16.8-1
linux-6.1	source	bullseye	6.1.153-1~deb11u1	DLA-4328-1

[bullseye] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/e6b543ca9806d7bced863f43020e016ee996c057 (6.17-rc6)