[Bug 314121] [NEW] PPTP Segfault - Intrepid - 64bit

[John]

Public bug reported:

Binary package hint: network-manager-pptp

Ubuntu 8.10 64bit

network-manager-pptp:
  Installed: 0.7~~svn20081015t024626-0ubuntu1.8.10.1

The PPTP service will randomly disconnect after being up for a while. I
can reestablish the tunnel without problem. In the example below it
looks like there was about 40 minutes between disconnections but I've
seen it run for 6 or 7 hours before disconnecting again. Disconnections
are random. SYSLOG shows the following:

Jan  5 09:58:44 john00-laptop pptp[6594]: nm-pptp-service-6525 log[decaps_gre:pptp_gre.c:414]: buffering packet 12916 (expecting 12915, lost or reordered)
Jan  5 09:58:44 john00-laptop pptp[6594]: nm-pptp-service-6525 log[decaps_gre:pptp_gre.c:414]: buffering packet 12917 (expecting 12915, lost or reordered)
Jan  5 10:17:01 john00-laptop /USR/SBIN/CRON[17167]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Jan  5 10:40:57 john00-laptop -- MARK --
Jan  5 11:00:38 john00-laptop pptp[6600]: nm-pptp-service-6525 log[pptp_read_some:pptp_ctrl.c:551]: read error: Connection reset by peer
Jan  5 11:00:38 john00-laptop pptp[6600]: nm-pptp-service-6525 log[callmgr_main:pptp_callmgr.c:258]: Closing connection (shutdown)
Jan  5 11:00:38 john00-laptop pptp[6600]: nm-pptp-service-6525 log[pptp_send_ctrl_packet:pptp_ctrl.c:622]: write error: Broken pipe
Jan  5 11:00:38 john00-laptop pptp[6600]: nm-pptp-service-6525 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Jan  5 11:00:38 john00-laptop pppd[6578]: Modem hangup
Jan  5 11:00:38 john00-laptop kernel: [12004.404779] pptpcm[6600]: segfault at 7fff2400a460 ip 0000000000405cbd sp 00007fff23b4c040 error 4 in pptp[400000+10000]
Jan  5 11:00:38 john00-laptop pppd[6578]: Connect time 195.9 minutes.
Jan  5 11:00:38 john00-laptop pppd[6578]: Sent 947140 bytes, received 14211672 bytes.
Jan  5 11:00:38 john00-laptop pppd[6578]: MPPE disabled
Jan  5 11:00:38 john00-laptop pppd[6578]: Connection terminated.
Jan  5 11:00:38 john00-laptop pppd[6578]: Exit.

Here's another:

Jan  5 11:07:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 6 'Echo-Reply' 
Jan  5 11:07:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Jan  5 11:08:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[logecho:pptp_ctrl.c:677]: Echo Request received.
Jan  5 11:08:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 6 'Echo-Reply' 
Jan  5 11:09:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[logecho:pptp_ctrl.c:677]: Echo Request received.
Jan  5 11:09:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 6 'Echo-Reply' 
Jan  5 11:09:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Jan  5 11:10:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[logecho:pptp_ctrl.c:677]: Echo Request received.
Jan  5 11:10:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[logecho:pptp_ctrl.c:679]: no more Echo Reply/Request packets will be reported.
Jan  5 11:17:01 john00-laptop /USR/SBIN/CRON[23617]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Jan  5 11:40:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[pptp_read_some:pptp_ctrl.c:551]: read error: Connection reset by peer
Jan  5 11:40:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[callmgr_main:pptp_callmgr.c:258]: Closing connection (shutdown)
Jan  5 11:40:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[pptp_send_ctrl_packet:pptp_ctrl.c:622]: write error: Broken pipe
Jan  5 11:40:13 john00-laptop pptp[21778]: nm-pptp-service-21766 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Jan  5 11:40:13 john00-laptop pppd[21767]: Modem hangup
Jan  5 11:40:13 john00-laptop pppd[21767]: Connect time 37.0 minutes.
Jan  5 11:40:13 john00-laptop pppd[21767]: Sent 54243 bytes, received 114588 bytes.
Jan  5 11:40:13 john00-laptop kernel: [14379.564315] pptpcm[21778]: segfault at 7fffdd947b30 ip 0000000000405cbd sp 00007fffdd620b10 error 4 in pptp[400000+10000]
Jan  5 11:40:13 john00-laptop pppd[21767]: MPPE disabled
Jan  5 11:40:13 john00-laptop pppd[21767]: Connection terminated.
Jan  5 11:40:13 john00-laptop pppd[21767]: Exit.

** Affects: network-manager-pptp (Ubuntu)
     Importance: Undecided
         Status: New

-- 
PPTP Segfault - Intrepid - 64bit
https://bugs.launchpad.net/bugs/314121
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