CVE-2025-37924

Name	CVE-2025-37924
Description	In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in kerberos authentication Setting sess->user = NULL was introduced to fix the dangling pointer created by ksmbd_free_user. However, it is possible another thread could be operating on the session and make use of sess->user after it has been passed to ksmbd_free_user but before sess->user is set to NULL.
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)	bullseye	5.10.223-1	fixed
	bullseye (security)	5.10.237-1	fixed
	bookworm	6.1.137-1	vulnerable
	bookworm (security)	6.1.135-1	vulnerable
	trixie	6.12.27-1	vulnerable
	sid	6.12.29-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
linux	source	bullseye	(not affected)
linux	source	(unstable)	6.12.29-1

[bullseye] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/e86e9134e1d1c90a960dd57f59ce574d27b9a124 (6.15-rc5)