set_pincode verb in Bluetooth-manager API is able set pincode for outgoing pairing.
But, this verb don't validate value variable so occur segmentation fault.

When not send pincode value and just call this verb, g_ascii_strtoll function occur Null Dereference in set_pincode function. (bluetooth-conf.c:112)
If send a pincode value that is not a string type, Invalid type casting in g_ascii_strtoll function causing segmentation fault.