Hi experts,
Recently I met a problem on RHEL5.1 with autofs-5.0.1-0.rc2.55
automount SEGV core dumps when running with configs:
/etc/auto.master
===
+auto.master
===
/etc/nsswitch.conf
===
automount: files nis
===
ypcat -k auto.master | cat -A
===
/nfs/opsutils auto.opsutils^I^I-rw,soft$
/nfs/private auto.private^I-rw,intr,nosuid$
/nfs/roview auto.roview -rw,intr,nosuid$
/nfs/group auto.group^I^I-rw,intr$
/nfs/floor auto.floor^I^I-ro,soft$
/nfs/net -hosts^I^I^I-ro,soft,nosuid$
/nfs/log auto.log-hq^I-rw,intr$
/netvobs auto.vobs^I-rw,hard,intr,nosuid$
/netview auto.view^I-rw,hard,intr,nosuid$
/home auto.home^I^I-rw,intr,nosuid$
/SCM auto.scm^I-rw,hard,intr,nosuid$
$
I found the core dump is caused by the last blank line in auto.master.
and I wrote a patch on it.
--- ./modules/lookup_yp.c.bug 2008-02-27 22:50:26.000000000 -0500
+++ ./modules/lookup_yp.c 2008-02-27 22:51:40.000000000 -0500
@@ -175,6 +175,9 @@
if (*ypkey == '+')
return 0;
+ if (ypkeylen == 0)
+ return 0;
+
*(ypkey + ypkeylen) = '\0';
*(val + vallen) = '\0';
and seems this patch fixes the problem.
Is there anything wrong with the patch?
thanks,
wengang.
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