메모리 동적할당 읽을거리 링크

understanding glibc malloc 번역

http://tribal1012.tistory.com/78

glibc 동적 메모리 관리

http://egloos.zum.com/studyfoss/v/5206979

init_free unlink

http://uaf.io/exploitation/misc/2016/09/11/_int_free-Mental-Snapshot.html

GLibc malloc internal (1): arena, bin, chunk and sub heap

https://jipanyang.wordpress.com/2014/06/09/glibc-malloc-internal-arena-bin-chunk-and-sub-heap-1/