CVE-2016-9576

Name	CVE-2016-9576
Description	It was found that the blk_rq_map_user_iov() function in the Linux kernel's block device implementation did not properly restrict the type of iterator, which could allow a local attacker to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging write access to a /dev/sg device.
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-772-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	buster	4.19.249-2	fixed
	buster (security)	4.19.269-1	fixed
	bullseye	5.10.158-2	fixed
	bullseye (security)	5.10.162-1	fixed
	bookworm, sid	6.1.8-1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	wheezy	3.2.84-1	DLA-772-1
linux	source	jessie	3.16.39-1
linux	source	(unstable)	4.8.15-1

Notes

https://marc.info/?l=linux-scsi&m=148010092224801&w=2
https://gist.githubusercontent.com/dvyukov/80cd94b4e4c288f16ee4c787d404118b/raw/10536069562444da51b758bb39655b514ff93b45/gistfile1.txt
Fixed by: https://git.kernel.org/linus/a0ac402cfcdc904f9772e1762b3fda112dcc56a0 (v4.9)