X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=fs%2Fcompat_ioctl.c;h=4c6285fff598e1faf9bb471f8b3b5593db74b355;hb=13d2b4d11d69a92574a55bfd985cfb0ca77aebdc;hp=f5054025f9da7c154b067db092cc44f8b953f835;hpb=ef8ff74ed8dd9d4b3ba8cb9f2fc927a27c697a8b;p=firefly-linux-kernel-4.4.55.git

diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index f5054025f9da..4c6285fff598 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -210,6 +210,8 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd,
 
 	err  = get_user(palp, &up->palette);
 	err |= get_user(length, &up->length);
+	if (err)
+		return -EFAULT;
 
 	up_native = compat_alloc_user_space(sizeof(struct video_spu_palette));
 	err  = put_user(compat_ptr(palp), &up_native->palette);