commit aea0ec4346341aaa75d84694ff32851936d3239d
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Oct 20 19:38:03 2017 -0500
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Oct 20 19:38:03 2017 -0500
tree dc75d44c0b61393fe70312cfc9b40d442e17cc12
parent af08094ba669eb22401fe1bd771d12a866a6b24e

[libpng16] Initialize tRNS read buffers in pngrutil.c

pngrutil.c

diff --git a/pngrutil.c b/pngrutil.c
index 966a4ff..f5a23e6 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1817,7 +1817,7 @@
 void /* PRIVATE */
 png_handle_tRNS(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
 {
-   png_byte readbuf[PNG_MAX_PALETTE_LENGTH];
+   png_byte readbuf[PNG_MAX_PALETTE_LENGTH]={0};
 
    png_debug(1, "in png_handle_tRNS");
 
@@ -1840,7 +1840,7 @@
 
    if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY)
    {
-      png_byte buf[2];
+      png_byte buf[2]={0};
 
       if (length != 2)
       {
@@ -1856,7 +1856,7 @@
 
    else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
    {
-      png_byte buf[6];
+      png_byte buf[6]={0};
 
       if (length != 6)
       {