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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - double free when exporting a temporarily imported semaphore"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106643">106643</a>
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<th>Summary</th>
<td>double free when exporting a temporarily imported semaphore
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>17.3
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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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
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<th>Component</th>
<td>Drivers/Vulkan/intel
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<th>Assignee</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>cstout@chromium.org
</td>
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<th>CC</th>
<td>jason@jlekstrand.net
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<p>
<div>
<pre>At the bottom of anv_GetSemaphoreFdKHR:
/* From the Vulkan 1.0.53 spec:
*
* "Export operations have the same transference as the specified handle
* type’s import operations. [...] If the semaphore was using a
* temporarily imported payload, the semaphore’s prior permanent payload
* will be restored.
*/
if (impl == &semaphore->temporary)
anv_semaphore_impl_cleanup(device, impl);
If this happens, the underlying semaphore resource is released but the
semaphore type is not updated to NONE.
So, on Destroy, the semaphore resource will be released again.
I think instead it should be:
anv_semaphore_reset_temporary(device, semaphore);</pre>
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