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bugfix (fuzz_tested): add tvb_ensure_bytes_exist() before adding a fragment at two places, otherwise we get an access violation 

svn path=/trunk/; revision=14525
This commit is contained in:
Ulf Lamping 2005-06-02 18:39:45 +00:00
parent 9784fa242a
commit 3c4401b95d
1 changed files with 2 additions and 0 deletions
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2
epan/dissectors/packet-dcerpc.c
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@ -3091,6 +3091,7 @@ dissect_dcerpc_cn_stub (tvbuff_t *tvb, int offset, packet_info *pinfo,
if(!(hdr->flags&PFC_LAST_FRAG)){
tot_len = fragment_get_tot_len(pinfo, frame,
dcerpc_co_reassemble_table);
tvb_ensure_bytes_exist(tvb, tot_len-alloc_hint, tvb_length(decrypted_tvb));
fragment_add(decrypted_tvb, 0, pinfo, frame,
dcerpc_co_reassemble_table,
tot_len-alloc_hint, tvb_length(decrypted_tvb),
@ -3107,6 +3108,7 @@ dissect_dcerpc_cn_stub (tvbuff_t *tvb, int offset, packet_info *pinfo,
*/
tot_len = fragment_get_tot_len(pinfo, frame,
dcerpc_co_reassemble_table);
tvb_ensure_bytes_exist(tvb, tot_len-alloc_hint, tvb_length(decrypted_tvb));
fd_head = fragment_add(decrypted_tvb, 0, pinfo,
frame,
dcerpc_co_reassemble_table,