CVE-2026-23144

Name	CVE-2026-23144
Description	In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure When a context DAMON sysfs directory setup is failed after setup of attrs/ directory, subdirectories of attrs/ directory are not cleaned up. As a result, DAMON sysfs interface is nearly broken until the system reboots, and the memory for the unremoved directory is leaked. Cleanup the directories under such failures.
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	fixed
	bullseye (security)	5.10.249-1	fixed
	bookworm	6.1.159-1	vulnerable
	bookworm (security)	6.1.162-1	fixed
	trixie	6.12.63-1	vulnerable
	trixie (security)	6.12.69-1	fixed
	forky	6.18.9-1	fixed
	sid	6.18.10-1	fixed

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

Package	Type	Release	Fixed Version
linux	source	bullseye	(not affected)
linux	source	bookworm	6.1.162-1
linux	source	trixie	6.12.69-1
linux	source	(unstable)	6.18.8-1

[bullseye] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/9814cc832b88bd040fc2a1817c2b5469d0f7e862 (6.19-rc6)