Re: Non-Exec stack patches

[Ingo Molnar]

On Wed, 24 Mar 2004, Kurt Garloff wrote:

> find attached a patch to parse the elf binaries for a PT_GNU_STACK
> section to set the stack non-executable if possible.
> Most parts have been shamelessly stolen from Ingo Molnar's more
> ambitious stackshield
> http://people.redhat.com/mingo/exec-shield/exec-shield-2.6.4-C9
> 
> The toolchain has meainwhile support for marking the binaries with a
> PT_GNU_STACK section with ot without x bit as needed.
> 
> If no such section is found, we leave the stack to whatever the arch
> defaults to. If there is one, we explicitly disabled the VM_EXEC bit if
> no x bit is found, otherwise explicitly enable.
> 
> I believe this part should be merged into official mainstream kernels.
> Ingo, what do you think?

agreed, and the patch looks good to me.

	Ingo
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