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CVE-2016-4581

Description

fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.

POC

Reference

- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

- http://www.ubuntu.com/usn/USN-3000-1

- http://www.ubuntu.com/usn/USN-3002-1

- http://www.ubuntu.com/usn/USN-3003-1

- http://www.ubuntu.com/usn/USN-3004-1

Github

No PoCs found on GitHub currently.