Different kind of double free corruption

Hey guys!

I'd like to know more about glibc error handling, and I'm interested in double free corruption.

I noticed a slight difference between different a double free corruption which is affecting my code and the one which affects an example code that I've written.

This is my code's one:

*** glibc detected *** src/a.out: double free or corruption (out): 0x0896fa38 ***

This is the one produced by a code that allocs an integer and frees it two times

*** glibc detected *** ./a.out: double free or corruption (fasttop): 0x08393008 ***

Can you explain me what is the difference between fastop and out?

Read Google

Web Images Videos Maps News Shopping Gmail more ▼
I don't see how that helps.

>>3
Read more.

>>3,4
Web:Glibc manual
Images:Glibc gallery
Videos:Glibc strips
Maps:Glibc house
News:Glibc arrested DUI
Shopping: Buy Glibc used
GMail:Add Glibc to contacts

Hax:MyAnus

Anus.new.hax()

>>5
News:Glibc arrested DUI
I laughed a little.