Possible dereference of NULL

[Artemii Voronin]

There is a possible dereference of newGroupName = NULL inside function:

net-snmp/agent/mibgroup/mibII/vacm_vars.c

Lines 1228 to 1229 in 6537508

 aptr = 
     vacm_getAccessEntry(newGroupName, newContextPrefix, model, 

Found by Linux Verification Center (portal.linuxtesting.ru) with SVACE.
Author A. Voronin.