Bug#226515: NIS segfault

[Malte Cornils <malte@cornils.net>]

Hello,

I'm hitting the FAM bug here, too. I've tried to follow your debugging guide. 
Maybe it helps...

-Malte

druckerei:~# gdb /usr/sbin/famd
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ls.
This GDB was configured as "i386-linux"...(no debugging symbols found)
Using host libthread_db library "/usr/lib/debug/libthread_db.so.1".

(gdb) run -T 0 -d
Starting program: /usr/sbin/famd -T 0 -d
(no debugging symbols found)
(no debugging symbols found)
famd[7138]: log level is LOG_DEBUG
famd[7138]: read /etc/fam.conf line 13: "insecure_compatibility" = "fals
e"
famd[7138]: read /etc/fam.conf line 20: "untrusted_user" = "nobody"
famd[7138]: read /etc/fam.conf line 28: "local_only" = "true"
famd[7138]: read /etc/fam.conf line 35: "xtab_verification" = "true"
famd[7138]: Setting untrusted-user to "nobody" (uid: 65534, gid: 65534)
famd[7138]: listening for clients on descriptor 6
famd[7138]: client fd 7 is local/untrusted.
famd[7138]: new connection from client 7
famd[7138]: client 7 said: client 7 is sockmeister, and wants a unix domain 
socket
famd[7138]: Setting groups to: (none)
famd[7138]: Setting egid to 0
famd[7138]: Skipping setting euid, because it's already 0
famd[7138]: client sockmeister said uid 1075; creating /tmp/.famDmdwB1
famd[7138]: listening for requests for uid 1075 on descriptor 8 
(/tmp/.famDmdwB1)
famd[7138]: client fd 9 is local/trusted (socket /tmp/.famDmdwB1, uid 1075).

Program received signal SIGSEGV, Segmentation fault.
0x40006b66 in getgrent_next_nss (ent=0xbffff840,
    buffer=0xbffff430 "+", buflen=1024, user=0x806e688 "mcornils",
    group=10, start=0xbffff89c, size=0xbffff8d4, groupsp=0xbffff8d8,
    limit=-1, errnop=0x401699a0) at nss_compat/compat-initgroups.c:266
266     nss_compat/compat-initgroups.c: Datei oder Verzeichnis nicht gefunden.
        in nss_compat/compat-initgroups.c
(gdb) bt
#0  0x40006b66 in getgrent_next_nss (ent=0xbffff840,
    buffer=0xbffff430 "+", buflen=1024, user=0x806e688 "mcornils",
    group=10, start=0xbffff89c, size=0xbffff8d4, groupsp=0xbffff8d8,
    limit=-1, errnop=0x401699a0) at nss_compat/compat-initgroups.c:266
#1  0x40006e96 in internal_getgrent_r (ent=0xbffff840,
    buffer=0xbffff430 "+", buflen=1024, user=0x806e688 "mcornils",
    group=10, start=0xbffff89c, size=0xbffff8d4, groupsp=0xbffff8d8,
    limit=-1, errnop=0x401699a0) at nss_compat/compat-initgroups.c:393
#2  0x40006fd4 in _nss_compat_initgroups_dyn (
    user=0x806e688 "mcornils", group=10, start=0xbffff89c,
    size=0xbffff8d4, groupsp=0xbffff8d8, limit=-1, errnop=0x401699a0)
    at nss_compat/compat-initgroups.c:422
#3  0x400df304 in internal_getgrouplist (user=0x806e688 "mcornils",
    group=10, size=0xbffff8d4, groupsp=0xbffff8d8, limit=-1)
    at initgroups.c:175
#4  0x400df443 in getgrouplist (
    user=0x388 <Address 0x388 out of bounds>, group=904,
    groups=0x8072868, ngroups=0xbffff908) at initgroups.c:210
#5  0x0804ad56 in ?? ()
#6  0x0805110d in ?? ()
#7  0x08059324 in __assert ()
#8  0x08059401 in __assert ()
#9  0x0805c45e in __assert ()
---Type <return> to continue, or q <return> to quit---  
#10 0x4004fdc6 in __libc_start_main (main=0x805c240 <__assert+37984>,
    argc=4, ubp_av=0xbffffc84, init=0x805dc10 <__assert+44592>,
    fini=0x805dc70 <__assert+44688>,
    rtld_fini=0x47e154a0 <_rtld_local>, stack_end=0x0)
    at ../sysdeps/generic/libc-start.c:242
#11 0x08049d51 in ?? ()