Steps to reproduce:

1. Build from source (./configure --enable-agent) or install from .deb (1:2.2.23+dfsg-0+deb8u1)
2. run form command line "zabbix_agentd -c config.conf -p"

Result:

zabbix_agentd [1640]: ERROR: Got signal [signal:7(SIGBUS),reason:0,refaddr:0xb6f31000]. Crashing ...

Expected:
Zabbix agent start

Reason:

Buffer overrun in ./src/libs/zbxsysinfo/linux/hardware.c:145

Can be fixed with the following patch/hack before 145:

if (((char*)mmp + len) > sizeof(membuf))
{
  goto close;
}