wireshark/SOURCES/wireshark-0009-CVE-2018-160...

28 lines
1.1 KiB
Diff

diff --git a/epan/dissectors/packet-ieee80211-radiotap-iter.c b/epan/dissectors/packet-ieee80211-radiotap-iter.c
index 56ca297434..4006637fb2 100644
--- a/epan/dissectors/packet-ieee80211-radiotap-iter.c
+++ b/epan/dissectors/packet-ieee80211-radiotap-iter.c
@@ -131,6 +131,7 @@ int ieee80211_radiotap_iterator_init(
iterator->_bitmap_shifter = get_unaligned_le32(&radiotap_header->it_present);
iterator->_arg = (guint8 *)radiotap_header + sizeof(*radiotap_header);
iterator->_reset_on_ext = 0;
+ iterator->_next_ns_data = NULL;
iterator->_next_bitmap = &radiotap_header->it_present;
iterator->_next_bitmap++;
iterator->_vns = vns;
@@ -287,9 +288,14 @@ int ieee80211_radiotap_iterator_next(
}
if (!align) {
/* skip all subsequent data */
+ if (!iterator->_next_ns_data)
+ return -EINVAL;
iterator->_arg = iterator->_next_ns_data;
/* give up on this namespace */
iterator->current_namespace = NULL;
+ iterator->_next_ns_data = NULL;
+ if (!ITERATOR_VALID(iterator, 0))
+ return -EINVAL;
goto next_entry;
}
break;