CVE-2025-39853

Name	CVE-2025-39853
Description	In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.
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)
References	DSA-6008-1, DSA-6009-1

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)	6.1.153-1	fixed
	trixie	6.12.43-1	vulnerable
	trixie (security)	6.12.48-1	fixed
	forky	6.16.9-1	fixed
	sid	6.16.11-1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	bookworm	6.1.153-1	DSA-6009-1
linux	source	trixie	6.12.48-1	DSA-6008-1
linux	source	(unstable)	6.16.6-1

https://git.kernel.org/linus/a556f06338e1d5a85af0e32ecb46e365547f92b9 (6.17-rc5)