Re: [RFC][PATCH 1/6] mprotect patch for use by SLIM

From: Dave Hansen
Date: Fri Jul 14 2006 - 13:40:54 EST


On Fri, 2006-07-14 at 10:24 -0700, Kylene Jo Hall wrote:
> This small patch makes mprotect available for use by SLIM for
> write revocation.

Hmmm. Do you really want mprotect() itself? Or, do you just want to
keep people from writing? (there is a difference :)

If somebody mmap()s something with write permissions, I would expect
them to expect to see rw in /proc/<pid>/maps. If you use mprotect() on
that mmap() to remove the write permissions, the permissions will be
reflected in /proc/<pid>/maps.

-- Dave

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/