kernel: vmwgfx: integer overflow in vmwgfx_execbuf.c

An integer overflow was found in the Linux kernel's vmwgfx driver. This flaw allows a local, unprivileged attacker with access to either /dev/dri/card0 or /dev/dri/rendererD128, and able to issue an ioctl on the resulting file descriptor to crash the system, causing a denial of service...