Linux GNU C Library has crashing issue.
And it also affect to Zabbix.
Following command or setting make Zabbix crash.
I used latest trunk version (rev.25240)
Older versions are same.
Executing following command cause Zabbix Agent crash.
Setting following item from WebUI has same effect.
Setting following trigger from WebUI and when some new data come from log[/tmp/out.log] it cause Zabbix Server crash.
As far as I know, no Linux distributer fix the issue about 1 year.
Maybe no Linux distributer will fix it.
They seems to think it is "unimportant" or application should check the input string.
Not only glibc, eglibc has same problem.
Debian and Ubuntu use eglibc as C Library.
I suggest to use other regex library or add check input string to fix this problem.