GlibcHeapInfoDialog 0 0 453 263 Dialog Base Base address of the chunk true Size Size of the heap chunk including metadata false Fd Link to next free chunk in bin's linked list false Bk Link to previous free chunk in bin's linked list false Link to next larger free chunk (only for large chunks) false <html><head/><body><p>Fd-nextsize</p></body></html> Bk-nextsize Link to next smaller free chunk (for large chunks) false Size of previous chunk (if free) false PrevSize If the chunk was obtained from a non-main arena NON_MAIN_ARENA true false The chunk was obtained with mmap() IS_MMAPED true false Previous adjacent chunk is in use PREV_INUSE true false Save