Summary:	ASTERISK-09373: chan_misdn segfaults on a reload if there are no configured MISDN ports
Reporter:	Steve Davies . (stevedavies)	Labels:
Date Opened:	2007-05-03 07:59:20	Date Closed:	2007-05-18 03:28:09
Priority:	Critical	Regression?	No
Status:	Closed/Complete	Components:	Channels/chan_misdn
Versions:		Frequency of Occurrence
Related Issues:
Environment:		Attachments:
Description:	Hi, We have a standard Asterisk build that includes the chan_misdn driver. Where there are no connected ISDN ports we get a segfault on reload. The crash is like so: Core was generated by `/usr/sbin/asterisk -U asterisk -G asterisk -v -g -p -U asterisk -G asterisk'. Program terminated with signal 11, Segmentation fault. ... #0  _free_port_cfg () at misdn_config.c:223 223             int gn = map[MISDN_CFG_GROUPNAME]; The reason for the segfault is: (gdb) p map $1 = (int *) 0x0 Fix presumably is to check that there is something to free before calling free_port_cfg. ****** ADDITIONAL INFORMATION ****** I didn't attach the backtrace etc because the problem is rather obvious. If you need it please explain and I'll upload.
Comments:	By: crich (crich) 2007-05-18 03:27:56 This is already fixed in the svn 1.2 branch. I've right now tested that with an empty misdn.conf, and there was no Segfault when doing reload.