BUG: libiptc chain references bug (Jesper Brouer <hawk@diku.dk>)
Correcting a chain references increment bug in libiptc.
The bug lies in function iptc_delete_entry() / TC_DELETE_ENTRY. The
problem is the construction of "r" the rule entry, that is used for
comparison. The problem is that the function iptcc_map_target()
increase the target chains references count.
diff --git a/libiptc/libiptc.c b/libiptc/libiptc.c
index 794904b..779df34 100644
--- a/libiptc/libiptc.c
+++ b/libiptc/libiptc.c
@@ -1519,6 +1519,14 @@
DEBUGP("unable to map target of rule for chain `%s'\n", chain);
free(r);
return 0;
+ } else {
+ /* iptcc_map_target increment target chain references
+ * since this is a fake rule only used for matching
+ * the chain references count is decremented again.
+ */
+ if (r->type == IPTCC_R_JUMP
+ && r->jump)
+ r->jump->references--;
}
list_for_each_entry(i, &c->rules, list) {