CVE-2025-68177

Name	CVE-2025-68177
Description	In the Linux kernel, the following vulnerability has been resolved: cpufreq/longhaul: handle NULL policy in longhaul_exit longhaul_exit() was calling cpufreq_cpu_get(0) without checking for a NULL policy pointer. On some systems, this could lead to a NULL dereference and a kernel warning or panic. This patch adds a check using unlikely() and returns early if the policy is NULL. Bugzilla: #219962
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)	5.10.247-1	fixed
	bookworm	6.1.148-1	vulnerable
	bookworm (security)	6.1.158-1	vulnerable
	trixie	6.12.57-1	vulnerable
	trixie (security)	6.12.48-1	vulnerable
	forky	6.17.11-1	fixed
	sid	6.17.12-1	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	5.10.247-1
linux	source	(unstable)	6.17.8-1

https://git.kernel.org/linus/592532a77b736b5153e0c2e4c74aa50af0a352ab (6.18-rc1)