tl;dr
- Race condition to change the 
type. - Leak using uninitialized memory and get rip with overflow.
 
tl;dr
type.tl;dr
Tilde operator.tl;dr
tty structure function pointers to get code execution.tl;dr
strncat in merge allows for an overwrite onto the next region tl;dr
tl;dr
__malloc_hook to one_gadgettl;dr
tl;dr
tl;dr
stdin stucture till main_arena.fastbin chunks to get overlapping chunk and leak.__malloc_hook using fastbin attack.tl;dr
char candle counter stored in the wax structure and trigger uaf.