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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - UBSAN in ../drivers/gpu/drm/drm_modes.c:325:49"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98372">98372</a>
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<th>Summary</th>
<td>UBSAN in ../drivers/gpu/drm/drm_modes.c:325:49
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</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>medium
</td>
</tr>
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<th>Component</th>
<td>DRM/other
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>marxin.liska@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>Running $uname -a
Linux linux-h8g6 4.9.0-rc1-2-syzkaller #1 SMP PREEMPT Mon Oct 17 19:37:55 UTC
2016 (55c3dd5) x86_64 x86_64 x86_64 GNU/Linux
with enabled UBSAN (built by GCC 7.0) in qemu, I reached following error:
[ 48.723720] UBSAN: Undefined behaviour in
../drivers/gpu/drm/drm_modes.c:325:49
[ 48.726943] signed integer overflow:
[ 48.728503] 2240 * 1000000 cannot be represented in type 'int'</pre>
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