drivers/media/v4l2-core/videobuf2-v4l2.c in the Linux kernel before 4.5.3 allows local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a crafted number of planes in a VIDIOC_DQBUF ioctl call.
https://github.com/torvalds/linux/commit/2c1f6951a8a82e6de0d82b1158b5e493fc6c54ab
https://bugzilla.redhat.com/show_bug.cgi?id=1334316
http://www.openwall.com/lists/oss-security/2016/05/07/4