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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - self-copy crashes for a stack overflow with svg12 backend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88293">88293</a>
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<th>Summary</th>
<td>self-copy crashes for a stack overflow with svg12 backend
</td>
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<th>Product</th>
<td>cairo
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>pdf backend
</td>
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<th>Assignee</th>
<td>ajohnson@redneon.com
</td>
</tr>
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<th>Reporter</th>
<td>sixtysix@inwind.it
</td>
</tr>
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<th>QA Contact</th>
<td>cairo-bugs@cairographics.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=112093" name="attach_112093" title="quick hack">attachment 112093</a> <a href="attachment.cgi?id=112093&action=edit" title="quick hack">[details]</a></span>
quick hack
The problem is that with a paginated surface (pdf, svg)
_cairo_recording_surface_break_self_copy_loop flushes
the internal recording surface, but not the parent which is
the snapshot_of of the paint source pattern. When later
detach_snapshots is invoked for the recording_surface
it creates a paint command that uses the same recording
surface as source and this results in a memory leak for
the pdf backend and an infinite recursion for the svg12
backend.
The attached quick hack flushes the pattern->surface before
adding the paint-command to the recording surface commands.
Reproduction step
(cd test && CAIRO_TEST_TARGET=pdf,svg12 .libs/cairo-test-suite -f self-copy)</pre>
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