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Neighbor report (802.11k) may be have no subelement (len == 13)

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Fix some malformed frame from sample on Bug 9724

Change-Id: I0874c2aab57799426f13e18123b05a7e73c6a75f
Partialy-Bug:9724
Reviewed-on: https://code.wireshark.org/review/340
Reviewed-by: Evan Huus <eapache@gmail.com>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
This commit is contained in:
Alexis La Goutte 2014-02-23 20:11:19 +01:00
parent 57048843e9
commit 53deb521e7
1 changed files with 5 additions and 0 deletions
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5
epan/dissectors/packet-ieee80211.c
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@ -13218,6 +13218,11 @@ add_tagged_field(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset
proto_tree_add_item(tree, hf_ieee80211_tag_neighbor_report_phy_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
/* The Optional Subelements field format contains zero or more subelements */
if (tag_len == 13){ /* tag_len == 13 => no Subelements */
break;
}
sub_tag_id = tvb_get_guint8 (tvb, offset);
offset += 1;
sub_tag_length = tvb_get_guint8 (tvb, offset);