<p>PR <a href="https://github.com/OpenSIPS/opensips/pull/722" class="issue-link" title="Prevent crash in `fm_remove_free`.">#722</a> has a workaround for the condition experienced in this case. However this might lead to fragments not being re-used iff <code>-&gt;prev</code> is already NULL, which might lead to memory leak / memory exhaustion.<br>
This would need to be reviewed by someone more conversant with memory management. :)</p>

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