CVE-2026-53296

Name	CVE-2026-53296
Description	In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: free channels on probe error On probe error, free the previously obtained channels. This not only prevents a leak, but also UAF scenarios because the client structure will be removed nonetheless because it was allocated with devm.
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)	5.10.257-1	vulnerable
	bookworm	6.1.170-3	vulnerable
	bookworm (security)	6.1.174-1	vulnerable
	trixie	6.12.86-1	vulnerable
	trixie (security)	6.12.94-1	fixed
	forky	7.0.12-2	fixed
	sid	7.0.13-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
linux	source	trixie	6.12.94-1
linux	source	(unstable)	7.0.10-1

https://git.kernel.org/linus/c02053a9055d5fdfd32432287cca8958db1d5bc5 (7.1-rc2)