Re: [CHECKER] pcmcia user-pointer dereference

[David Hinds (dhinds@sonic.net)]

On Thu, May 29, 2003 at 04:30:54PM -0500, Hollis Blanchard wrote:
> 
> That's true for pcmcia_get_mem_page. However pcmcia_map_mem_page writes 
> into the structure it verifies. I think pcmcia_get_first/next_window 
> could also be used to corrupt memory (*handle = win in 
> pcmcia_get_window).

The map_mem_page ioctl can only be used by root.  The get_*_window
ioctl's can't corrupt anything because they, like get_mem_page, only
read the target data structures.

-- Dave
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