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Date: Mon, 7 Aug 2017 15:52:31 -0500
From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To: Thomas Garnier <thgarnie@...gle.com>
Cc: Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: I want to help out
Hi Thomas,
On 08/07/2017 10:31 AM, Thomas Garnier wrote:
> Hey Gustavo, welcome!
>
Thanks!
> That's a lot of changes, thanks for sharing.
>
I'm glad to help. :)
> You can take a look at this page [1] to get an idea on things to do.
> You can also look at the difference patches coming and going on the
> mailing list to see if anything interest you.
>
> Anything in particular you wanted to prototype?
>
I'm interested in mitigation efforts towards control flow infection, as
function pointer poisoning for both .init_array (I know there is some
ongoing work here) and .fini_array.
From the TODO list I think the following tasks are interesting:
* Split thread_info off of kernel stack.
* Move kernel stack to vmap area.
* Implement kernel relocation and KASLR for ARM
If there is already some work in progress and there are some small tasks
pending to be completed, I'd like to help.
I might need someone to point me out to the work already in place and,
after reading some code and asking some questions I might be able to
take it from there.
I have to say that by no means I'm an expert in any of those areas, but
I'm willing to learn and become a long term contributor.
Recently, I've been using Coccinelle to constify structures, and fixing
a variety of Coverity issues (API usage errors, NULL pointer
dereferences, control flow and code maintainability issues, etc..). I'm
also using Coccinelle to identify lock/unlock issues.
Thank you!
--
Gustavo A. R. Silva
> Thanks,
>
> [1] https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project/Work
>
> On Sun, Aug 6, 2017 at 9:22 PM, Gustavo A. R. Silva
> <gustavo@...eddedor.com> wrote:
>> Hello everybody,
>>
>> I'm new in the mailing list.
>>
>> I've been working on kernel hardening activities during the last three
>> months
>> https://github.com/GustavoARSilva/linux-hardening/blob/master/cii/2017/reports/mayjunjul_detailed
>>
>> I'd be more than happy to dedicate time and help out with any coding
>> activities you may need help with. In particular related to x86 and ARM
>> architectures (that's the hardware I have at hand).
>>
>> Thank you
>> --
>> Gustavo A. R. Silva
>> @embeddedgus
>
>
>
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