CVE-2019-19768

Name	CVE-2019-19768
Description	In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).
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-2241-1, DLA-2242-1, DSA-4698-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bullseye	5.10.223-1	fixed
	bullseye (security)	5.10.226-1	fixed
	bookworm	6.1.115-1	fixed
	bookworm (security)	6.1.119-1	fixed
	trixie	6.12.5-1	fixed
	sid	6.12.6-1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	jessie	3.16.84-1	DLA-2241-1
linux	source	stretch	4.9.210-1+deb9u1	DSA-4698-1
linux	source	buster	4.19.118-1
linux	source	(unstable)	5.5.13-1
linux-4.9	source	jessie	4.9.210-1+deb9u1~deb8u1	DLA-2242-1

https://bugzilla.kernel.org/show_bug.cgi?id=205711