From: Joel Holdsworth <redacted>
Date: Mon, 1 Apr 2013 07:46:02 +0000 (+0100)
Subject: Padded data buffer so that reads do not overrun it.
X-Git-Tag: pulseview-0.1.0~45
X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=commitdiff_plain;h=067e5d901290afe79f6991dab8f8042583779256

Padded data buffer so that reads do not overrun it.
---

diff --git a/pv/data/snapshot.cpp b/pv/data/snapshot.cpp
index afd1e43e..8571dc66 100644
--- a/pv/data/snapshot.cpp
+++ b/pv/data/snapshot.cpp
@@ -53,7 +53,8 @@ uint64_t Snapshot::get_sample_count() const
 void Snapshot::append_data(void *data, uint64_t samples)
 {
 	lock_guard<recursive_mutex> lock(_mutex);
-	_data = realloc(_data, (_sample_count + samples) * _unit_size);
+	_data = realloc(_data, (_sample_count + samples) * _unit_size +
+		sizeof(uint64_t));
 	memcpy((uint8_t*)_data + _sample_count * _unit_size,
 		data, samples * _unit_size);
 	_sample_count += samples;