Actually I've found something else to complain about: On Tue, Jan 28, 2014 at 2:16 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > +#define I915_USERPTR_READ_ONLY 0x1 This smells like an insta-root-exploit: 1. mmap /lib/ld-linux.so as read-only 2. userptr bind that mmap'ed area as READ_ONLY 3. blit exploit code over it 4. profit I also don't see a way we could fix this, at least without the hardware providing read-only modes in the ptes. Which also requires us to actually trust it to follow them, even when they exists ... -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
