From 131f7cfd71c54d67886d5501ace4d2bc7aa2a876 Mon Sep 17 00:00:00 2001
From: Denis Kasak <dkasak@termina.org.uk>
Date: Tue, 13 Jul 2021 15:04:20 +0200
Subject: [PATCH] Fix off-by-one comparison error when unpickling uint32_t.

---
 src/pickle.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pickle.cpp b/src/pickle.cpp
index d69fa98..f0e8f2f 100644
--- a/src/pickle.cpp
+++ b/src/pickle.cpp
@@ -30,7 +30,7 @@ std::uint8_t const * olm::unpickle(
     std::uint32_t & value
 ) {
     value = 0;
-    if (!pos || end <= pos + 4) return nullptr;
+    if (!pos || end < pos + 4) return nullptr;
     for (unsigned i = 4; i--;) { value <<= 8; value |= *(pos++); }
     return pos;
 }