ntfs_attr_find in the ntfs.ko filesystem driver in the Linux kernel 4.15.0 allows attackers to trigger a stack-based out-of-bounds write and cause a denial of service (kernel oops or panic) or possibly have unspecified other impact via a crafted ntfs filesystem.
https://marc.info/?l=linux-ntfs-dev&m=152413769810234&w=2
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1763403