From 45a1c4c0885584554668c89bd6976474af01e2f5 Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Mon, 11 Dec 2017 22:36:58 +0000
Subject: add empty container sanity checks when using front() and back()

---
 src/mnemonics/electrum-words.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/mnemonics')

diff --git a/src/mnemonics/electrum-words.cpp b/src/mnemonics/electrum-words.cpp
index 1b14905f6..ba67952aa 100644
--- a/src/mnemonics/electrum-words.cpp
+++ b/src/mnemonics/electrum-words.cpp
@@ -205,6 +205,8 @@ namespace
    */
   bool checksum_test(std::vector<std::string> seed, uint32_t unique_prefix_length)
   {
+    if (seed.empty())
+      return false;
     // The last word is the checksum.
     std::string last_word = seed.back();
     seed.pop_back();
-- 
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