From: Toni Wilen <twilen@winuae.net>
Date: Mon, 28 Jul 2025 17:33:31 +0000 (+0300)
Subject: Fix possible buffer underrun.
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=939040a1a519dc96acf009532bb618746d641b55;p=francis%2Fwinuae.git

Fix possible buffer underrun.
---

diff --git a/specialmonitors.cpp b/specialmonitors.cpp
index 330af339..8f204667 100755
--- a/specialmonitors.cpp
+++ b/specialmonitors.cpp
@@ -3459,7 +3459,7 @@ static bool opalvision(struct vidbuffer *src, struct vidbuffer *dst, bool double
 		}
 
 		// blank left and right edge
-		for (x = 0; x < (xoffset + 2); x++) {
+		for (x = 1; x < (xoffset + 2); x++) {
 			uae_u8 *d = dstline + ((x << 1) >> hdbl_shift) * dst->pixbytes;
 			uae_u8 *d2 = d + dst->rowbytes;
 			PUT_PRGB(d, d2, dst, 0, 0, 0, 0, doublelines, true);