From 34cf0476915ac7b6770af88ab02f836b6ffb710d Mon Sep 17 00:00:00 2001
From: sudastelaro <james@lnls.br>
Date: Fri, 27 Oct 2023 12:54:27 -0300
Subject: [PATCH] Clear the right number of bytes in StreamBuffer

The wrong number of bytes was being cleared in StreamBuffer::grow. That
could lead to memory access out of bounds.
---
 src/StreamBuffer.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/StreamBuffer.cc b/src/StreamBuffer.cc
index fdba24f..c7d53b4 100644
--- a/src/StreamBuffer.cc
+++ b/src/StreamBuffer.cc
@@ -144,7 +144,7 @@ grow(size_t minsize)
         // just move contents to start of buffer and clear end
         // to avoid reallocation
         memmove(buffer, buffer+offs, len);
-        memset(buffer+len, 0, offs);
+        memset(buffer+len, 0, cap-len);
         offs = 0;
         return;
     }