From b382683e3b77e5973b63e9bfc72fbde55c94af95 Mon Sep 17 00:00:00 2001
From: Natalia Portillo <claunia@claunia.com>
Date: Wed, 6 Sep 2017 21:12:44 +0100
Subject: [PATCH] Check for overflow with incorrectly cut mode pages.

---
 DiscImageChef.Decoders/SCSI/Modes.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/DiscImageChef.Decoders/SCSI/Modes.cs b/DiscImageChef.Decoders/SCSI/Modes.cs
index e8dbdb1a..9fb6be74 100644
--- a/DiscImageChef.Decoders/SCSI/Modes.cs
+++ b/DiscImageChef.Decoders/SCSI/Modes.cs
@@ -6545,6 +6545,9 @@ namespace DiscImageChef.Decoders.SCSI
                 {
                     if(isSubpage)
                     {
+                        if (offset + 3 >= modeResponse.Length)
+                            break;
+
                         pg.PageResponse = new byte[(modeResponse[offset + 2] << 8) + modeResponse[offset + 3] + 4];
                         if((pg.PageResponse.Length + offset) > modeResponse.Length)
                             return decoded;
@@ -6555,6 +6558,9 @@ namespace DiscImageChef.Decoders.SCSI
                     }
                     else
                     {
+                        if (offset + 1 >= modeResponse.Length)
+                            break;
+                        
                         pg.PageResponse = new byte[modeResponse[offset + 1] + 2];
                         if((pg.PageResponse.Length + offset) > modeResponse.Length)
                             return decoded;