I run drivers with a separate kernel page table, that write-protects
memory not in use by the driver. In addition, I verify that parameters
passed from a driver to the kernel are valid, so the kernel doesn't die
while dereferencing a pointer.
- Mike
-----Original Message-----
From: Valdis.Kletnieks@vt.edu [mailto:Valdis.Kletnieks@vt.edu]
Sent: Monday, May 05, 2003 9:08 PM
To: Michael Swift
Cc: linux-kernel@vger.kernel.org
Subject: Re: Buggy drivers/modules needed
On Mon, 05 May 2003 20:36:32 PDT, Michael Swift
<mikesw@cs.washington.edu> said:
> I'm working on a Linux patch to prevent buggy modules/drivers from
> causing the kernel to crash. Instead, the kernel detects a crash in
> the driver, and trans parently restarts the module. Currently this
> patch supports network interface card drivers, sound drivers, and file
> systems.
What are you planning to do about protecting a buggy module/driver from
causing a crash by stomping on somebody *elses* memory and corrupting
some unrelated data structure?
-
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