Wireshark mailing list archives
Re: Crashes while Airpcap sniffing
From: Jaap Keuter <jaap.keuter () xs4all nl>
Date: Mon, 02 Jan 2012 21:20:10 +0100
Hi, Can you file a proper bug report on this at bugs.wireshark.orgThat way the bug context and patch won't get lost (although it may take a while for it to be picked up, unfortunately).
Thanks, Jaap On 2012-01-02 16:26, Gisle Vanem wrote:
There are some places in the ./gtk sources that causes a crash while sniffing on a AirPcap adapter. I don't know why; maybe most code assumes the captured frames contain network layer packets. Since my Airpcap (\\.\airpcap00 on Win-XP) only gives me IEEE 802.11 radio frames, I can only speculate. I.e. here is one situation in gtk/stats_tree_stat.c: void gtk_stats_tree_cb(GtkAction *action, gpointer user_data _U_) { ... cfg = stats_tree_get_cfg_by_abbr(abbr); if(cfg){ tap_param_dlg_cb(action, cfg->pr->stat_dlg); Pressing the menu "Statistics | Sametime | Messages" while sniffing on AirPcap ... kaboom! Since "cfg != NULL", but "cgf->pr == NULL". What's the story here? A simple patch: --- SVN-Latest\gtk\stats_tree_stat.c Mon Oct 31 11:17:42 2011 +++ gtk\stats_tree_stat.c Mon Jan 02 16:11:12 2012 @@ -389,7 +389,7 @@ abbr = g_strdup_printf("%s",action_name); } cfg = stats_tree_get_cfg_by_abbr(abbr); - if(cfg){ + if(cfg && cfg->pr){ tap_param_dlg_cb(action, cfg->pr->stat_dlg); }else{ simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, But it would be nicer if that menu would be greyed out. But I have no idea on how to do it myself. There are also this situation (which I can get back to): when getting an unexpected "Information Element ID", the function capture_if_details_802_11_bssid_list() tries to hex-dump a buffer and reading beyond the buffer returned by wpcap_packet_request(). Kaboom again. --gv
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Current thread:
- Crashes while Airpcap sniffing Gisle Vanem (Jan 02)
- Re: Crashes while Airpcap sniffing Jaap Keuter (Jan 02)
- Re: Crashes while Airpcap sniffing Guy Harris (Jan 02)
- Re: Crashes while Airpcap sniffing Gisle Vanem (Jan 02)
- Re: Crashes while Airpcap sniffing Guy Harris (Jan 02)
- Re: Crashes while Airpcap sniffing Guy Harris (Jan 02)
- Re: Crashes while Airpcap sniffing Jaap Keuter (Jan 02)