Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through 4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.
https://www.mail-archive.com/netdev%40vger.kernel.org/msg223373.html
https://www.debian.org/security/2018/dsa-4188
https://www.debian.org/security/2018/dsa-4187
https://usn.ubuntu.com/3657-1/
https://usn.ubuntu.com/3656-1/
https://usn.ubuntu.com/3655-2/
https://usn.ubuntu.com/3655-1/
https://usn.ubuntu.com/3654-2/
https://usn.ubuntu.com/3654-1/
https://usn.ubuntu.com/3653-2/
https://usn.ubuntu.com/3653-1/
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html