From 5c4bfb1a4baae1bea11cc9f629bc48ee12e733a7 Mon Sep 17 00:00:00 2001
From: Lyonel Vincent <lyonel@ezix.org>
Date: Sun, 10 Jan 2021 00:38:10 +0100
Subject: [PATCH] Report correct memory size on SMBIOS < 2.7

Github PR#60

---
 src/core/dmi.cc | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/core/dmi.cc b/src/core/dmi.cc
index 30b3ab3b995c..d33d4879bdca 100644
--- a/src/core/dmi.cc
+++ b/src/core/dmi.cc
@@ -1567,10 +1567,13 @@ int dmiversionrev)
 
 // size
           u = data[0x0D] << 8 | data[0x0C];
-          if(u == 0x7FFF) {
-             unsigned long long extendsize = (data[0x1F] << 24) | (data[0x1E] << 16) | (data[0x1D] << 8) | data[0x1C];
-             extendsize &= 0x7FFFFFFFUL;
-             size = extendsize * 1024ULL * 1024ULL;
+          if ((dmiversionmaj > 2)
+            || ((dmiversionmaj == 2) && (dmiversionmin >= 7))) {
+             if(u == 0x7FFF) {
+                unsigned long long extendsize = (data[0x1F] << 24) | (data[0x1E] << 16) | (data[0x1D] << 8) | data[0x1C];
+                extendsize &= 0x7FFFFFFFUL;
+                size = extendsize * 1024ULL * 1024ULL;
+             }
           }
 	  else
           if (u != 0xFFFF)
-- 
2.17.1