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Redhat 7.2 kernal options; How do I config?

S

sandmanwake

Golden Member
I'd like to turn off the kernal option to make the stack segment no executable so that I can do an assignment for my security class, how do I do this? Also, how do I turn it back on once I'm done? In case you're wondering, the assignment is on buffer overflows.
 
Thanks for trying manly. I too used google, but no success yet. The link you found is for a patch, I'm purposely trying to make the kernal more vulnerable though.
 
Oh I read your request wrong.

But from my reading, you need that patch to make the Linux kernel support a noexec stack segment. So isn't the standard kernel or popular derivatives already vulnerable?
 
I'm not sure if the one for Redhat 7.2 is already vulnerable. I'd still like to know how to mess with the stack segment kernal option though.
 
The default kernel doesn't have that option included, the stack is executable by defalt (I believe this also depends on the CPU in use). You need to apply that patch and compile a custom kernel to have that option at all.
 
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