From: Brett Gordon <beretta42@gmail.com>
Date: Fri, 23 Oct 2015 06:10:14 +0000 (-0400)
Subject: coco3: graphics: fix bounds checking
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=10952ed7f587d600c4ed0b87a35d81d2de0ba913;p=FUZIX.git

coco3: graphics: fix bounds checking
---

diff --git a/Kernel/platform-coco3/video.c b/Kernel/platform-coco3/video.c
index 447c6676..181f55ab 100644
--- a/Kernel/platform-coco3/video.c
+++ b/Kernel/platform-coco3/video.c
@@ -148,8 +148,8 @@ int gfx_draw_op(uarg_t arg, char *ptr)
 			break;
 		}
 		l -= 8;
-		if (p[0] > 31 || p[1] > 191 || p[2] > 31 || p[3] > 191 ||
-		    p[0] + p[2] > 32 || p[1] + p[3] > 192 ||
+		if (p[0] > 191 || p[1] > 31 || p[2] > 191 || p[3] > 31 ||
+		    p[0] + p[2] > 191 || p[1] + p[3] > 31 ||
 		    (p[2] * p[3]) > l) {
 			err = -EFAULT;
 			break;