CVE-2024-27389

Name	CVE-2024-27389
Description	In the Linux kernel, the following vulnerability has been resolved: pstore: inode: Only d_invalidate() is needed Unloading a modular pstore backend with records in pstorefs would trigger the dput() double-drop warning: WARNING: CPU: 0 PID: 2569 at fs/dcache.c:762 dput.part.0+0x3f3/0x410 Using the combo of d_drop()/dput() (as mentioned in Documentation/filesystems/vfs.rst) isn't the right approach here, and leads to the reference counting problem seen above. Use d_invalidate() and update the code to not bother checking for error codes that can never happen. ---
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, 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)	buster	4.19.249-2	fixed
	buster (security)	4.19.304-1	fixed
	bullseye	5.10.209-2	vulnerable
	bullseye (security)	5.10.216-1	vulnerable
	bookworm	6.1.76-1	vulnerable
	bookworm (security)	6.1.90-1	fixed
	trixie	6.7.12-1	fixed
	sid	6.8.9-1	fixed

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

Package	Type	Release	Fixed Version
linux	source	buster	(not affected)
linux	source	bookworm	6.1.85-1
linux	source	(unstable)	6.7.12-1

[buster] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/a43e0fc5e9134a46515de2f2f8d4100b74e50de3 (6.9-rc1)