CVE-2025-71086

Name	CVE-2025-71086
Description	In the Linux kernel, the following vulnerability has been resolved: net: rose: fix invalid array index in rose_kill_by_device() rose_kill_by_device() collects sockets into a local array[] and then iterates over them to disconnect sockets bound to a device being brought down. The loop mistakenly indexes array[cnt] instead of array[i]. For cnt < ARRAY_SIZE(array), this reads an uninitialized entry; for cnt == ARRAY_SIZE(array), it is an out-of-bounds read. Either case can lead to an invalid socket pointer dereference and also leaks references taken via sock_hold(). Fix the index to use i.
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)
References	DLA-4475-1, DLA-4476-1, DSA-6126-1, DSA-6127-1

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)	5.10.249-1	fixed
	bookworm	6.1.159-1	vulnerable
	bookworm (security)	6.1.162-1	fixed
	trixie	6.12.63-1	vulnerable
	trixie (security)	6.12.73-1	fixed
	forky, sid	6.18.12-1	fixed
linux-6.1 (PTS)	bullseye (security)	6.1.162-1~deb11u1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	bullseye	5.10.249-1	DLA-4475-1
linux	source	bookworm	6.1.162-1	DSA-6127-1
linux	source	trixie	6.12.69-1	DSA-6126-1
linux	source	(unstable)	6.18.5-1
linux-6.1	source	bullseye	6.1.162-1~deb11u1	DLA-4476-1

https://git.kernel.org/linus/6595beb40fb0ec47223d3f6058ee40354694c8e4 (6.19-rc4)