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Date: Tue, 10 Feb 2004 17:02:09 +0000
From: Joe Thornber <thornber@redhat.com>
To: Joe Thornber <thornber@redhat.com>
Cc: Linux Mailing List <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@osdl.org>
Subject: [Patch 8/10] dm: Zero size target sanity check
Message-ID: <20040210170209.GN27507@reti>
References: <20040210163548.GC27507@reti>
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Add sanity check to dm_table_add_target() against zero length targets.  [Christophe Saout]
--- diff/drivers/md/dm-table.c	2004-02-10 16:11:58.000000000 +0000
+++ source/drivers/md/dm-table.c	2004-02-10 16:12:04.000000000 +0000
@@ -655,6 +655,11 @@
 	memset(tgt, 0, sizeof(*tgt));
 	set_default_limits(&tgt->limits);
 
+	if (!len) {
+		tgt->error = "zero-length target";
+		return -EINVAL;
+	}
+
 	tgt->type = dm_get_target_type(type);
 	if (!tgt->type) {
 		tgt->error = "unknown target type";