dialog: safety check for dialog hash table inside dlg_get()

- GH #1594 (cherry picked from commit 4f13c9a)
kamailio · Aug 17, 2018 · b2f2107 · b2f2107
1 parent a13cfbc
commit b2f2107
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/modules/dialog/dlg_hash.c b/src/modules/dialog/dlg_hash.c
@@ -794,6 +794,10 @@ struct dlg_cell* get_dlg( str *callid, str *ftag, str *ttag, unsigned int *dir)
 	struct dlg_cell *dlg;
 	unsigned int he;
 
+	if(d_table==NULL) {
+		LM_ERR("dialog hash table not available\n");
+		return 0;
+	}
 	he = core_hash(callid, 0, d_table->size);
 	dlg = internal_get_dlg(he, callid, ftag, ttag, dir, 0);