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Optimized and fixed heap-after-free in delete_dup_edges

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cyanpencil 2018-07-13 20:19:18 +02:00 committed by radare
parent d51e8dc8ce
commit 653064d30a
1 changed files with 9 additions and 8 deletions
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17
libr/core/graph.c
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@ -2126,16 +2126,17 @@ static void get_bbupdate(RAGraph *g, RCore *core, RAnalFunction *fcn) {
}
static void delete_dup_edges (RAGraph *g) {
RListIter *iter, *in_iter, *in_iter2;
RListIter *it, *in_it, *in_it2, *in_it2_tmp;
RGraphNode *n, *a, *b;
r_list_foreach (g->graph->nodes, iter, n) {
r_list_foreach (n->out_nodes, in_iter, a) {
r_list_foreach (n->out_nodes, in_iter2, b) {
if (in_iter == in_iter2) {
continue;
}
r_list_foreach (g->graph->nodes, it, n) {
r_list_foreach (n->out_nodes, in_it, a) {
for (in_it2 = in_it->n; in_it2 && (b = in_it2->data, in_it2_tmp = in_it2->n, 1); in_it2 = in_it2_tmp) {
if (a->idx == b->idx) {
r_graph_del_edge (g->graph, n, b);
r_list_delete (n->out_nodes, in_it2);
r_list_delete_data (n->all_neighbours, b);
r_list_delete_data (b->in_nodes, n);
r_list_delete_data (b->all_neighbours, n);
g->graph->n_edges--;
}
}
}