CVE-2018-20836

Name	CVE-2018-20836
Description	An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.
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-1884-1, DLA-1885-1, DSA-4495-1, DSA-4497-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bookworm	6.1.176-1	fixed
	bookworm (security)	6.1.187-1	fixed
	trixie (security), trixie	6.12.107-1	fixed
	forky, sid	7.1.13-1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	jessie	3.16.72-1	DLA-1884-1
linux	source	stretch	4.9.168-1+deb9u5	DSA-4497-1
linux	source	buster	4.19.37-5+deb10u2	DSA-4495-1
linux	source	(unstable)	5.2.6-1
linux-4.9	source	jessie	4.9.168-1+deb9u5~deb8u1	DLA-1885-1

Fixed by: https://git.kernel.org/linus/b90cd6f2b905905fb42671009dc0e27c310a16ae