From 4152493d97103fca1bf1eb5a334d9441a06cea14 Mon Sep 17 00:00:00 2001
From: Waccoon <105848526+Waccoon@users.noreply.github.com>
Date: Sat, 11 Nov 2023 03:28:45 -0500
Subject: [PATCH] Fix buffer overflow if VPOS out of range

Amiga crash may cause vsync to be lost, causing dma_record[] overflow.
---
 debug.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/debug.cpp b/debug.cpp
index 8681f7f4..ddd379c6 100644
--- a/debug.cpp
+++ b/debug.cpp
@@ -2219,6 +2219,8 @@ struct dma_rec *last_dma_rec;
 void record_dma_read_value_pos(uae_u32 v, int hpos, int vpos)
 {
 	hpos += dma_record_hoffset;
+	if (hpos >= NR_DMA_REC_HPOS || vpos >= NR_DMA_REC_VPOS)
+		return;	
 	struct dma_rec *dr = &dma_record[dma_record_toggle][vpos * NR_DMA_REC_HPOS + hpos];
 	last_dma_rec = dr;
 	record_dma_read_value(v);
-- 
2.47.3