From: Christophe Varoqui <root@xa-s05.(none)>
Date: Tue, 18 Oct 2005 10:01:02 +0000 (+0200)
Subject: [multipath] fix a double free error
X-Git-Tag: 0.4.6~59
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f7dda0660713513bac2589fc16ccb8c77c6dbe63;p=platform%2Fupstream%2Fmultipath-tools.git

[multipath] fix a double free error

"multipath $FLAGS $ALIAS" code path lead to a double free :
1) get_refwwid did a lookup in mptable and returned mpe->alias as the
   refwwid
2) in the exit path, we freed refwwid
3) then free_config()->free_mptable()->free_mpe() freed mpe->alias at the
   same address

So return strdup(mpe->alias) instead.
---

diff --git a/multipath/main.c b/multipath/main.c
index 5a2b2a8..a8e8f41 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -133,7 +133,7 @@ get_refwwid (vector pathvec)
 		refwwid = get_mpe_wwid(conf->dev);
 
 		if (refwwid)
-			return refwwid;
+			return STRDUP(refwwid);
 		
 		/*
 		 * or directly a wwid