"ross" wrote in message
news:Xns9A188BC165E7FD9026EA6ABB120C@204.153.245.22...

That's exactly the problem. Some O/S's clear heap pages before
making them available to applications or after the application
releases them. In the same way, some clear stack frames while
others don't. If there's a trend, I would guess that more and
more O/S's will do this because of security considerations and,
at some point in the future, all will do the same thing (maybe
using different values).

ross wrote:

No, exactly your program.

Yes, an obvious thing: The content is most likely under the choice of the
attacker.

It's called calloc()!

ross wrote:

Are you sure about that? My understanding is that modern operating
systems always zero out new pages before giving them to you. (The
behavior you describe would be a security hole, because it would allow
one process to learn secrets stored in the address space of a previous
process.)

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