CVE-2018-7191

Name	CVE-2018-7191
Description	In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

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
linux	source	jessie	3.16.56-1+deb8u1
linux	source	stretch	4.9.65-1
linux	source	(unstable)	4.14.2-1

Notes

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743792
https://git.kernel.org/linus/0ad646c81b2182f7fa67ec0c8c825e0ee165696d
https://git.kernel.org/linus/5c25f65fd1e42685f7ccd80e0621829c105785d9