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<base href="https://bugzilla.gnome.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - File descriptor leak in gdk_wayland_selection_request_target()"
href="https://bugzilla.gnome.org/show_bug.cgi?id=751414">751414</a>
</td>
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<th>Summary</th>
<td>File descriptor leak in gdk_wayland_selection_request_target()
</td>
</tr>
<tr>
<th>Classification</th>
<td>Platform
</td>
</tr>
<tr>
<th>Product</th>
<td>gtk+
</td>
</tr>
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<th>Version</th>
<td>3.16.x
</td>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>Normal
</td>
</tr>
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<th>Component</th>
<td>Backend: Wayland
</td>
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<th>Assignee</th>
<td>gtk-bugs@gtk.org
</td>
</tr>
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<th>Reporter</th>
<td>mcatanzaro@gnome.org
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>gtk-bugs@gtk.org
</td>
</tr>
<tr>
<th>CC</th>
<td>rob@robster.org.uk, wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>GNOME version</th>
<td>---
</td>
</tr></table>
<p>
<div>
<pre>I discovered that gdk_wayland_selection_request_target() does not close()
wayland_selection->stored_selection.fd before assigning a new fd to it. A
malicious Wayland client can trick a user into dragging data to it from a GTK+
app, and then cause the GTK+ app to leak an arbitrary number of file
descriptors up to its limit by calling wl_data_offer_receive() in a loop. This
probably also work against any GTK+ app that has placed data in the clipboard,
though I didn't test that.
I'll attach the trivial fix.</pre>
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</p>
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