CVE-2025-38702

Name	CVE-2025-38702
Description	In the Linux kernel, the following vulnerability has been resolved: fbdev: fix potential buffer overflow in do_register_framebuffer() The current implementation may lead to buffer overflow when: 1. Unregistration creates NULL gaps in registered_fb[] 2. All array slots become occupied despite num_registered_fb < FB_MAX 3. The registration loop exceeds array bounds Add boundary check to prevent registered_fb[FB_MAX] access.
Source	CVE (at NVD; CERT, 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)	5.10.237-1	vulnerable
	bookworm	6.1.148-1	vulnerable
	bookworm (security)	6.1.147-1	vulnerable
	trixie	6.12.43-1	fixed
	trixie (security)	6.12.41-1	vulnerable
	forky, sid	6.16.7-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
linux	source	trixie	6.12.43-1
linux	source	(unstable)	6.16.3-1

https://git.kernel.org/linus/523b84dc7ccea9c4d79126d6ed1cf9033cf83b05 (6.17-rc1)