From: ruben@mrbrklyn.com (Ruben Safir)
To: kernelnewbies@lists.kernelnewbies.org
Subject: How to change page permission from inside the kernel?
Date: Fri, 6 Jul 2018 14:49:58 -0400 [thread overview]
Message-ID: <88bf3863-4ed7-962e-e776-d4306d4b3d80@mrbrklyn.com> (raw)
In-Reply-To: <CAAGnT3aYPyssf48C63FMq-yPDcTDZzrTEMXGVbtic2jA1wamNg@mail.gmail.com>
On 07/06/2018 02:06 PM, Ahmed Soliman wrote:
> I have a memory page allocated with mmap() from user space, This
> address is passed to some kernel module (kvm_intel to be specific) and
> i want to know how can I change the page permission from inside there
> My goal is to achieve something like this
> mprotect(mem, PAGE_SIZE, PROT_READ)
> except for mprotect can't be called from the kernel, and I couldn't
> find the right way to do it.
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
sounds like a good way to make a virus
--
So many immigrant groups have swept through our town
that Brooklyn, like Atlantis, reaches mythological
proportions in the mind of the world - RI Safir 1998
http://www.mrbrklyn.com
DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002
http://www.nylxs.com - Leadership Development in Free Software
http://www2.mrbrklyn.com/resources - Unpublished Archive
http://www.coinhangout.com - coins!
http://www.brooklyn-living.com
Being so tracked is for FARM ANIMALS and and extermination camps,
but incompatible with living as a free human being. -RI Safir 2013
prev parent reply other threads:[~2018-07-06 18:49 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-06 18:06 How to change page permission from inside the kernel? Ahmed Soliman
2018-07-06 18:42 ` valdis.kletnieks at vt.edu
2018-07-06 19:29 ` Ahmed Soliman
2018-07-06 21:10 ` valdis.kletnieks at vt.edu
[not found] ` <CAAGnT3Ymh6EcdaLo=rGR4-oH0nYub8v9VCZaCtppyxxJAmh5Ag@mail.gmail.com>
2018-07-06 21:59 ` Fwd: " Ahmed Soliman
2018-07-06 22:32 ` valdis.kletnieks at vt.edu
2018-07-06 23:31 ` Ahmed Soliman
2018-07-07 2:06 ` valdis.kletnieks at vt.edu
2018-07-07 2:13 ` Rik van Riel
2018-07-07 11:05 ` Ahmed Soliman
2018-07-06 18:49 ` Ruben Safir [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=88bf3863-4ed7-962e-e776-d4306d4b3d80@mrbrklyn.com \
--to=ruben@mrbrklyn.com \
--cc=kernelnewbies@lists.kernelnewbies.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.