CVE-2024-50262

Name	CVE-2024-50262
Description	In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4008-1, DLA-4075-1, DSA-5818-1

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)	5.10.234-1	fixed
	bookworm	6.1.123-1	fixed
	bookworm (security)	6.1.128-1	fixed
	trixie	6.12.12-1	fixed
	sid	6.12.17-1	fixed
linux-6.1 (PTS)	bullseye (security)	6.1.128-1~deb11u1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	bullseye	5.10.234-1	DLA-4075-1
linux	source	bookworm	6.1.119-1	DSA-5818-1
linux	source	(unstable)	6.11.7-1
linux-6.1	source	bullseye	6.1.119-1~deb11u1	DLA-4008-1

https://git.kernel.org/linus/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21 (6.12-rc6)