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Don't try to access a null pointer. Found during fuzz testing. 

svn path=/trunk/; revision=14186
This commit is contained in:
Gerald Combs 2005-04-25 16:54:18 +00:00
parent c993ffc6dc
commit 53865bb046
1 changed files with 12 additions and 2 deletions
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14
epan/dissectors/packet-rpc.c
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@ -2795,8 +2795,8 @@ dissect_rpc_fragment(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, rec_dissector_t dissector, gboolean is_heur,
int proto, int ett, gboolean defragment, gboolean first_pdu)
{
struct tcpinfo *tcpinfo = pinfo->private_data;
guint32 seq = tcpinfo->seq + offset;
struct tcpinfo *tcpinfo;
guint32 seq;
guint32 rpc_rm;
volatile gint32 len;
gint32 seglen;
@ -2809,6 +2809,16 @@ dissect_rpc_fragment(tvbuff_t *tvb, int offset, packet_info *pinfo,
fragment_data *ipfd_head;
tvbuff_t *rec_tvb;
if (pinfo == NULL || pinfo->private_data == NULL) {
return 0;
}
tcpinfo = pinfo->private_data;
if (tcpinfo == NULL) {
return 0;
}
seq = tcpinfo->seq + offset;
/*
* Get the record mark.
*/