The raw_sendmsg() function in net/ipv4/raw.c in the Linux kernel through 4.14.6 has a race condition in inet->hdrincl that leads to uninitialized stack pointer usage; this allows a local user to execute code and gain privileges.
- https://usn.ubuntu.com/3581-1/
- https://usn.ubuntu.com/3582-1/
- https://github.com/ARPSyndicate/cvemon