From e04c7e11ec2fabf34aaf515103bc0b6086e1aabd Mon Sep 17 00:00:00 2001
From: volzhs <volzhs@gmail.com>
Date: Thu, 22 Dec 2016 09:54:15 +0900
Subject: Update libwebp to 0.5.2

---
 thirdparty/libwebp/utils/utils.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'thirdparty/libwebp/utils/utils.c')

diff --git a/thirdparty/libwebp/utils/utils.c b/thirdparty/libwebp/utils/utils.c
index 2602ca3c9f..82dbf8d5e5 100644
--- a/thirdparty/libwebp/utils/utils.c
+++ b/thirdparty/libwebp/utils/utils.c
@@ -175,8 +175,12 @@ static int CheckSizeArgumentsOverflow(uint64_t nmemb, size_t size) {
   }
 #endif
 #if defined(MALLOC_LIMIT)
-  if (mem_limit > 0 && total_mem + total_size >= mem_limit) {
-    return 0;   // fake fail!
+  if (mem_limit > 0) {
+    const uint64_t new_total_mem = (uint64_t)total_mem + total_size;
+    if (new_total_mem != (size_t)new_total_mem ||
+        new_total_mem > mem_limit) {
+      return 0;   // fake fail!
+    }
   }
 #endif
 
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