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| author | Harald Welte <laforge@gnumonks.org> | 2019-01-05 01:23:43 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@osmocom.org> | 2020-09-11 23:28:01 +0200 |
| commit | 4947ec41737e20cf2b6157e9703d144cba97c410 (patch) | |
| tree | 398345cca62e57ed5c8c9ebc80f31ac291cdf12c /epan/dissectors/packet-dect-dlc.c | |
| parent | 6957d53c6e82e27459c8d41b1da9243e35857847 (diff) | |
dect-dlc: Don't call NWK dissector if there's no payload
Change-Id: Ia86185f52b724be61db2d94ffaf51fd00ebab84c
Diffstat (limited to 'epan/dissectors/packet-dect-dlc.c')
| -rw-r--r-- | epan/dissectors/packet-dect-dlc.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/epan/dissectors/packet-dect-dlc.c b/epan/dissectors/packet-dect-dlc.c index c021cdb6ad..a10303d840 100644 --- a/epan/dissectors/packet-dect-dlc.c +++ b/epan/dissectors/packet-dect-dlc.c @@ -139,12 +139,14 @@ static int dissect_dect_dlc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, len = length >> 2; available_length = tvb_captured_length(tvb) - 3; - payload = tvb_new_subset_length_caplen(tvb, 3, MIN(len, available_length), len); + if (available_length > 0) { + payload = tvb_new_subset_length_caplen(tvb, 3, MIN(len, available_length), len); - /* FIXME: fragment reassembly like in packet-lapdm.c */ + /* FIXME: fragment reassembly like in packet-lapdm.c */ - if (!dissector_try_uint(dlc_sapi_dissector_table, sapi, payload, pinfo, tree)) - call_data_dissector(payload, pinfo, tree); + if (!dissector_try_uint(dlc_sapi_dissector_table, sapi, payload, pinfo, tree)) + call_data_dissector(payload, pinfo, tree); + } return tvb_captured_length(tvb); } |