Suricata

Additional finding by coverity:

** CID 1524506:  Integer handling issues  (DIVIDE_BY_ZERO)
/src/flow-manager.c: 858 in FlowManager()

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*** CID 1524506:  Integer handling issues  (DIVIDE_BY_ZERO)
/src/flow-manager.c: 858 in FlowManager()
852                                "flow_spare_q status: %" PRIu32 "%% flows at the queue",
853                             spare_pool_len, flow_config.prealloc,
854                             spare_pool_len * 100 / flow_config.prealloc);
855     
856                     /* only if we have pruned this "emergency_recovery" percentage
857                      * of flows, we will unset the emergency bit */
>>>     CID 1524506:  Integer handling issues  (DIVIDE_BY_ZERO)
>>>     In expression "spare_pool_len * 100U / flow_config.prealloc", division by expression "flow_config.prealloc" which may be zero has undefined behavior.
858                     if (spare_pool_len * 100 / flow_config.prealloc > flow_config.emergency_recovery) {
859                         emerg_over_cnt++;
860                     } else {
861                         emerg_over_cnt = 0;
862                     }
863     

Merged PR: https://github.com/OISF/suricata/pull/8616

PR addressing coverity warning:
https://github.com/OISF/suricata/pull/8628