#3305 imm: immnd coredump during authenticate non-local user

[Thien Minh Huynh]

Coredump generated as following

#0  0x00007f98bc3be0d7 in raise () from /lib64/libc.so.6
#1  0x00007f98bc3bf4aa in abort () from /lib64/libc.so.6
#2  0x00007f98bc3fd334 in __libc_message () from /lib64/libc.so.6
#3  0x00007f98bc4027a6 in malloc_printerr () from /lib64/libc.so.6
#4  0x00007f98bc4035eb in _int_free () from /lib64/libc.so.6
#5  0x00007f98bd38d197 in osaf_pid_has_supplementary_group (pid=<optimized out>, groupname=groupname@entry=0x5596baf7eef0 "users") at src/base/osaf_secutil.c:377
#6  0x00005596b8fd0156 in immnd_evt_proc_imm_init (cb=cb@entry=0x5596b925d060 <_immnd_cb>, evt=evt@entry=0x7f98ac0124d0, sinfo=sinfo@entry=0x7f98ac012610, isOm=isOm@entry=true) at src/imm/immnd/immnd_evt.c:939
#7  0x00005596b8fdc162 in immnd_process_evt () at src/imm/immnd/immnd_evt.c:659
#8  0x00005596b8fce084 in main (argc=<optimized out>, argv=<optimized out>) at src/imm/immnd/immnd_main.c:586

[Thien Minh Huynh]

commit e5a19e7770b1ad3a99af88252dddec6b7f875b54 (HEAD -> develop, origin/develop, ticket-3305)
Author: thien.m.huynh thien.m.huynh@dektech.com.au
Date: Tue Feb 8 13:38:42 2022 +0700

base: fix immnd crash when authenticate non-local user [#3305]

Correct length of buffer and init memory when allocate memory.