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CVE-2015-7799

Description

The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call.

POC

Reference

- http://www.ubuntu.com/usn/USN-2843-2

- http://www.ubuntu.com/usn/USN-2886-1

Github

- https://github.com/guoygang/vul-guoygang