CVE-2025-21934

Name	CVE-2025-21934
Description	In the Linux kernel, the following vulnerability has been resolved: rapidio: fix an API misues when rio_add_net() fails rio_add_net() calls device_register() and fails when device_register() fails. Thus, put_device() should be used rather than kfree(). Add "mport->net = NULL;" to avoid a use after free issue.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-5900-1

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)	5.10.234-1	vulnerable
	bookworm	6.1.129-1	vulnerable
	bookworm (security)	6.1.135-1	fixed
	trixie	6.12.22-1	fixed
	sid	6.12.25-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
linux	source	bookworm	6.1.133-1		DSA-5900-1
linux	source	(unstable)	6.12.19-1

https://git.kernel.org/linus/b2ef51c74b0171fde7eb69b6152d3d2f743ef269 (6.14-rc6)