Stream Recording: Ubuntu TCache Pwnable Development



Building a CTF pwnable challenge using the new Ubuntu Thread local cache heap implementation. We take a fairly hacker-y approach to it: I vaguely knew how the TCache worked, and that it was different from the older free bins implementations, so we just banged out code and made something that worked.

@str8outtaheap did a good writeup about some of the specifics of how it works, if you want to brush up on the specifics of how it actually works: