The Linux kernel was found to be vulnerable to an infinite loop cause by an integer overflow in the fs/f2fs/data.c:__get_data_block() function. A local attacker could exploit this to cause a denial of service. An upstream patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86e33075ed1909d8002745b56ecf73b833db143