Question about static analysis

[nalso]

Hi everyone

Can I inquire here? If it's a problem, I'll delete it.

I have question about static analysis. below code, Why use after free? 
I can see modem.c and ussd.c,  simfs.c let me know if you have any intentions.

=====================
Use after free (USE_AFTER_FREE)
pass_freed_arg: Passing freed pointer found->data as an argument to 
g_slist_remove 

in modem.c
        g_free(found->data);
        modem->interface_list = 
g_slist_remove(modem->interface_list,found->data);

        feature = get_feature(interface);
        if (feature) {
                found = g_slist_find_custom(modem->feature_list, 
feature,(GCompareFunc) strcmp);

                if (found) {
                        g_free(found->data);
                        modem->feature_list =
                                g_slist_remove(modem->feature_list,     
found->data);
                }
        }
=====================
in ussd.c
        ssc_entry_destroy(l->data);
        ussd->ss_control_list = g_slist_remove(ussd->ss_control_list, l->data);
=====================   
in simfs.c
                        sim_fs_op_free(op);
                        g_queue_remove(fs->op_q, op);
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