Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 9962] Buildbot crash output: fuzz-2014-04-07-13431.pcap

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Comment # 8 on bug 9962 from Guy Harris

lbm_channel_is_known() is:

gboolean lbm_channel_is_known(guint64 channel)
{
    return (!lbm_channel_is_unknown_transport_lbttcp(channel) &&
!lbm_channel_is_unknown_stream_tcp(channel));
}

so it'll be false iff lbm_channel_is_unknown_transport_lbttcp(channel) is true
or lbm_channel_is_unknown_stream_tcp(channel) is true.

So we know that:

    one of lbm_channel_is_unknown_transport_lbttcp(channel) or
lbm_channel_is_unknown_stream_tcp(channel) is true;

    lbm_channel_is_unknown_transport_source_lbttcp(channel) is not true;

    lbm_channel_is_unknown_transport_client_lbttcp(channel) is not true;

so lbm_channel_is_unknown_stream_tcp(channel) is true.

Those three functions are:

gboolean lbm_channel_is_unknown_transport_source_lbttcp(guint64 channel)
{
    if (channel == LBM_CHANNEL_UNKNOWN_TRANSPORT_SOURCE_LBTTCP)
    {
        return (TRUE);
    }
    return (FALSE);
}

gboolean lbm_channel_is_unknown_transport_client_lbttcp(guint64 channel)
{
    if (channel == LBM_CHANNEL_UNKNOWN_TRANSPORT_CLIENT_LBTTCP)
    {
        return (TRUE);
    }
    return (FALSE);
}

gboolean lbm_channel_is_unknown_stream_tcp(guint64 channel)
{
    if (channel == LBM_CHANNEL_UNKNOWN_STREAM_TCP)
    {
        return (TRUE);
    }
    return (FALSE);
}


so if channel is LBM_CHANNEL_UNKNOWN_STREAM_TCP, *boom*.

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