[Bug 83895] Re: ASLR of ELF base address not working

2007-03-20 Thread Kees Cook
Yup, I'd agree; this needs to be resolved upstream.

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[Bug 83895] Re: ASLR of ELF base address not working

2007-03-20 Thread Ben Collins
Sorry, Kees. Until they get things squared away upstream, I'm going to
just leave this out. It's not even reimplemented in current linux-2.6,
so there must still be reservations about it. We don't have any elf
loader experts handy to comment, and it's late in the release cycle to
mess around too much.

We do have random stacks, so that should be worth something. I pulled in
a patch that fixes random stacks with page sizes >= 64k (not likely to
be hit, but needed anyway).

** Changed in: linux-source-2.6.20 (Ubuntu)
   Status: Confirmed => Rejected

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[Bug 83895] Re: ASLR of ELF base address not working

2007-03-17 Thread Kees Cook
Discussion of a possible different approach for randomizing
ELF_ET_DYN_BASE:

http://lkml.org/lkml/2007/1/6/124

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[Bug 83895] Re: ASLR of ELF base address not working

2007-03-17 Thread Kees Cook
Another revision of my crazy ASLR testing tool.

** Summary changed:

- [feisty regression] ASLR stopped working in 2.6.20-6
+ ASLR of ELF base address not working

** Attachment added: "aslr test"
   http://librarian.launchpad.net/6846611/aslr.c

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