Re: [4KSTACK][2.6.6] Stack overflow in radeonfb

[Kronos <kronos@kronoz.cjb.net>]

Il Fri, May 14, 2004 at 08:55:02AM +1000, Benjamin Herrenschmidt ha scritto: 
> 
> > 
> > int radeonfb_set_par(struct fb_info *info)
> > {
> >         struct radeonfb_info *rinfo = info->par;
> >         struct fb_var_screeninfo *mode = &info->var;
> >         struct radeon_regs newmode;
> >         
> > struct radeon_regs is huge: 2356 bytes
> > Quick fix (I'll test ASAP):
> 
> Wow, this is evil indeed, I didn't expect that struct to be that big,
> but well... I did add a bunch of stuff to it lately.

There are 2 arrays at the end of the struct:

struct radeon_regs {
        ....
        u32             palette[256];
        u32             palette2[256];
};

they take 2KB alone and AFAICS they are not used anywhere. Maybe they
can be removed?

Luca
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