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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - libpng 1.6 - out of memory"
href="https://bugs.freedesktop.org/show_bug.cgi?id=62779">62779</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>cworth@cworth.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>libpng 1.6 - out of memory
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>cairo-bugs@cairographics.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dominique-freedesktop.org@leuenberger.net
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>1.12.14
</td>
</tr>
<tr>
<th>Component</th>
<td>png functions
</td>
</tr>
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<th>Product</th>
<td>cairo
</td>
</tr></table>
<p>
<div>
<pre>Adding as bug - so it will not get lost
<a href="http://comments.gmane.org/gmane.comp.lib.cairo/23741">http://comments.gmane.org/gmane.comp.lib.cairo/23741</a>
Simple program attached seems to have different results when
cairo is built against libpng15 and when it is built against
libpng16*):
cairo-libpng15-changeroot> ./cairo-fail tmp.png
PNG image read.
cairo-libpng16-changeroot> ./cairo-fail tmp.png
Error reading PNG image tmp.png: out of memory
===
(gdb) n
102 png_app_error(png_ptr,
(gdb) bt
#0 png_rtran_ok (png_ptr=0x604ba0, need_IHDR=0) at pngrtran.c:102
#1 0x00007ffff66e2040 in png_set_read_user_transform_fn
(png_ptr=0x604ba0, read_user_transform_fn=0x7ffff7b4ccfa
<convert_bytes_to_data>) at pngrtran.c:1059
#2 0x00007ffff7b4d1af in read_png (png_closure=0x7fffffffe7f0) at
cairo-png.c:651
#3 0x00007ffff7b4d507 in cairo_image_surface_create_from_png
(filename=0x7fffffffec12 "tmp.png") at cairo-png.c:779
#4 0x00000000004008ae in main (argc=2, argv=0x7fffffffe928) at
cairo-fail.c:8
(gdb) l
97 png_rtran_ok(png_structrp png_ptr, int need_IHDR)
===</pre>
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