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 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html