From 626021e0eb3a54e18c2f5c72cf13e6278717ed7e Mon Sep 17 00:00:00 2001
From: Roman Fomin <rfomin@gmail.com>
Date: Sun, 10 Dec 2023 18:20:03 +0700
Subject: [PATCH] fix zero length sounds (#1315)

* fix zero length sounds

DSSAWUP sound in "Eviternity II RC1.wad"

* better fix

* another variant
---
 src/i_oalsound.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/i_oalsound.c b/src/i_oalsound.c
index bfd7da4d..71ba7500 100644
--- a/src/i_oalsound.c
+++ b/src/i_oalsound.c
@@ -589,7 +589,7 @@ boolean I_OAL_CacheSound(sfxinfo_t *sfx)
         lumplen = W_LumpLength(lumpnum);
 
         // Check the header, and ensure this is a valid sound
-        if (lumpdata[0] == 0x03 && lumpdata[1] == 0x00)
+        if (lumplen > DMXHDRSIZE && lumpdata[0] == 0x03 && lumpdata[1] == 0x00)
         {
             freq = (lumpdata[3] <<  8) |  lumpdata[2];
             size = (lumpdata[7] << 24) | (lumpdata[6] << 16) |