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ieee80211: Add length tag check for Mesh Configuration IE 

Issue reported by Helge Magnus Keck

Change-Id: Ib761b4209d1efc80ca2c107dda9919e71f5865c2
Reviewed-on: https://code.wireshark.org/review/32798
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
This commit is contained in:
Alexis La Goutte 2019-04-09 08:30:34 +02:00 committed by Anders Broman
parent 8b6eb05bb3
commit b86346eaa0
1 changed files with 9 additions and 0 deletions
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9
epan/dissectors/packet-ieee80211.c
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@ -21230,6 +21230,15 @@ ieee80211_tag_mesh_peering_mgmt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *t
static int
ieee80211_tag_mesh_configuration(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
ieee80211_tagged_field_data_t* field_data = (ieee80211_tagged_field_data_t*)data;
int tag_len = tvb_reported_length(tvb);
if (tag_len != 7)
{
expert_add_info_format(pinfo, field_data->item_tag_length, &ei_ieee80211_tag_length, "Tag Length %u wrong, must be = 7", tag_len);
return tvb_captured_length(tvb);
}
int offset = 0;
proto_item *item;
proto_tree *subtree;