2017-01-13 Chad Versace <chadversary@xxxxxxxxxxxx>: > On Fri 13 Jan 2017, Gustavo Padovan wrote: > > From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxx> > > > > Currently if the userspace declares a int variable to store the out_fence > > fd and pass it to OUT_FENCE_PTR the kernel will overwrite the 32 bits > > above the int variable on 64 bits systems. > > > > Fix this by making the internal storage of out_fence in the kernel a s32 > > pointer. > > > > Reported-by: Chad Versace <chadversary@xxxxxxxxxxxx> > > Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxx> > > Cc: Daniel Vetter <daniel@xxxxxxxx> > > Cc: Rafael Antognolli <rafael.antognolli@xxxxxxxxx> > > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > > Cc: stable@xxxxxxxxxxxxxxx > > Reviewed-and-Tested-by: Chad Versace <chadversary@xxxxxxxxxxxx> > > I applied this to my kernel branch, updated kmscube, and the spinning cube still looks good. > For reference, here are the tags I tested with: > > mesa: http://git.kiwitree.net/cgit/~chadv/mesa/tag/?h=chadv/review/i965-exec-fence-v03 > libdrm: http://git.kiwitree.net/cgit/~chadv/libdrm/tag/?h=chadv/review/intel-exec-fence-v01 > linux: http://git.kiwitree.net/cgit/~chadv/linux/tag/?h=chadv/test/i915-exec-fence-v04 > kmscube: http://git.kiwitree.net/cgit/~chadv/kmscube/tag/?h=chadv/test/fences-v03 I pushed this patch to drm-misc-fixes. Thank you all. Gustavo _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
