CVE-2025-71269

Name	CVE-2025-71269
Description	In the Linux kernel, the following vulnerability has been resolved: btrfs: do not free data reservation in fallback from inline due to -ENOSPC If we fail to create an inline extent due to -ENOSPC, we will attempt to go through the normal COW path, reserve an extent, create an ordered extent, etc. However we were always freeing the reserved qgroup data, which is wrong since we will use data. Fix this by freeing the reserved qgroup data in __cow_file_range_inline() only if we are not doing the fallback (ret is <= 0).
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)	5.10.251-1	vulnerable
	bookworm	6.1.159-1	vulnerable
	bookworm (security)	6.1.164-1	vulnerable
	trixie	6.12.73-1	vulnerable
	trixie (security)	6.12.74-2	vulnerable
	forky	6.19.6-2	fixed
	sid	6.19.8-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
linux	source	(unstable)	6.18.10-1

https://git.kernel.org/linus/f8da41de0bff9eb1d774a7253da0c9f637c4470a (6.19-rc5)