Just started w/Linux Kernel (Beginner)

Just started w/Linux Kernel (Beginner)

[Benjamin Selormey]

Hello,

I’m a newbie with Linux kernel and I l want to contribute in security research of  the Linux Kernel.

I am interested in memory management and devices communication with the kernel. Does anyone have a starter project in mind I can start with?

Thank you.

Very Respectfully,
Ben 
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Re: Just started w/Linux Kernel (Beginner)

[Valdis Klētnieks]

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On Sun, 24 Nov 2019 11:58:24 +0000, Benjamin Selormey said:
> Hello,
>
> I’m a newbie with Linux kernel and I l want to contribute in security research of  the Linux Kernel.

A newbie? Go and read https://lists.kernelnewbies.org/pipermail/kernelnewbies/2017-April/017765.html
and Documentation/process/submitting-patches.rst in your git tree.

You *do* have a git tree of some appropriate kernel, right? If not, fix that deficiency. :)

> I am interested in memory management and devices communication with the kernel. Does anyone have a starter project in mind I can start with?

Hmm.  Security and memory management? The obvious place to start is to go and
look at all the since-patched cases of vma splits and merges abused for
exploits. Google for 'vma bug linux'.  Read, understand, and look for other
similar issues. Note that you'll probably need to understand in sufficient
depth that you can write at least a PoC (proof of concept) exploit that
demonstrates the problem.

Note that you may have trouble finding anything, most of the obvious cases got
pointed out by Solar Designer and Brad Spengler a decade or more ago.


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Re: Just started w/Linux Kernel (Beginner)

[Benjamin Selormey]

Thanks for the info and the read. I don’t have the git tree set up yet, I’ll work on that as well.

> On Nov 24, 2019, at 5:32 PM, Valdis Klētnieks <valdis.kletnieks@vt.edu> wrote:
> 
>> On Sun, 24 Nov 2019 11:58:24 +0000, Benjamin Selormey said:
>> Hello,
>> 
>> I’m a newbie with Linux kernel and I l want to contribute in security research of  the Linux Kernel.
> 
> A newbie? Go and read https://lists.kernelnewbies.org/pipermail/kernelnewbies/2017-April/017765.html
> and Documentation/process/submitting-patches.rst in your git tree.
> 
> You *do* have a git tree of some appropriate kernel, right? If not, fix that deficiency. :)
> 
>> I am interested in memory management and devices communication with the kernel. Does anyone have a starter project in mind I can start with?
> 
> Hmm.  Security and memory management? The obvious place to start is to go and
> look at all the since-patched cases of vma splits and merges abused for
> exploits. Google for 'vma bug linux'.  Read, understand, and look for other
> similar issues. Note that you'll probably need to understand in sufficient
> depth that you can write at least a PoC (proof of concept) exploit that
> demonstrates the problem.
> 
> Note that you may have trouble finding anything, most of the obvious cases got
> pointed out by Solar Designer and Brad Spengler a decade or more ago.
> 
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