CVE-2023-23454

Name	CVE-2023-23454
Description	cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-3349-1, DLA-3403-1, DSA-5324-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	buster	4.19.249-2	vulnerable
	buster (security)	4.19.282-1	fixed
	bullseye	5.10.178-3	fixed
	bullseye (security)	5.10.179-1	fixed
	bookworm, sid	6.1.27-1	fixed
linux-5.10 (PTS)	buster (security)	5.10.178-3~deb10u1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	buster	4.19.282-1	DLA-3403-1
linux	source	bullseye	5.10.162-1	DSA-5324-1
linux	source	(unstable)	6.1.7-1
linux-5.10	source	buster	5.10.162-1~deb10u1	DLA-3349-1

https://git.kernel.org/linus/caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12