CVE-2025-71186

Name	CVE-2025-71186
Description	In the Linux kernel, the following vulnerability has been resolved: dmaengine: stm32: dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bullseye	5.10.223-1	vulnerable
	bullseye (security)	5.10.247-1	vulnerable
	bookworm	6.1.159-1	vulnerable
	bookworm (security)	6.1.158-1	vulnerable
	trixie	6.12.63-1	vulnerable
	trixie (security)	6.12.48-1	vulnerable
	forky, sid	6.18.5-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
linux	source	(unstable)	6.18.8-1

https://git.kernel.org/linus/dd6e4943889fb354efa3f700e42739da9bddb6ef (6.19-rc6)