reds: Abort on BN-new failures
reds: Abort on BN-new failures

BN_new returns NULL on allocation failures. Given that we abort
on malloc allocation failures, we should also abort here. The
current code will segfault when BN_new fails as it immediatly tries
to use the NULL pointer.

fgouget/spice,alon/spice-server,Fantu/spice,Fantu/spice,freedesktop-unofficial-mirror/spice__spice,fgouget/spice,ya-mouse/spice,SPICE/spice,mathslinux/spice,Fantu/spice,Fantu/spice,elmarco/spice,elmarco/spice,ya-mouse/spice,alon/spice-server,freedesktop-unofficial-mirror/spice__spice,mathslinux/spice,SPICE/spice,SPICE/spice,freedesktop-unofficial-mirror/spice__spice,elmarco/spice,mathslinux/spice,freedesktop-unofficial-mirror/spice__spice,ya-mouse/spice,alon/spice-server,freedesktop-unofficial-mirror/spice__spice,alon/spice-server,mathslinux/spice,fgouget/spice,elmarco/spice,alon/spice-server,elmarco/spice,fgouget/spice,mathslinux/spice