From: Neil Brown <neilb@suse.de>
Date: Thu, 15 May 2008 05:50:42 +0000 (+1000)
Subject: Avoid possible null dereference in Assemble.
X-Git-Tag: mdadm-2.6.5~7
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ddd1a492519d61587cdd92660b875b82f4832176;p=thirdparty%2Fmdadm.git

Avoid possible null dereference in Assemble.

If the first device we look at has no superblock,
there is no 'st' to free, so don't free it.
---

diff --git a/Assemble.c b/Assemble.c
index c7cc385d..86212032 100644
--- a/Assemble.c
+++ b/Assemble.c
@@ -315,7 +315,8 @@ int Assemble(struct supertype *st, char *mddev, int mdfd,
 		if (!tst || !tst->sb) {
 			fprintf(stderr, Name ": %s has no superblock - assembly aborted\n",
 				devname);
-			st->ss->free_super(st);
+			if (st)
+				st->ss->free_super(st);
 			return 1;
 		}