7/19

From: Joe Thornber (joe@fib011235813.fsnet.co.uk)
Date: Mon Dec 16 2002 - 05:10:25 EST


There's a bug in the dm-stripe.c constructor failing top check if enough
destinations are handed in. [Heinz Mauelshagen]
--- diff/drivers/md/dm-stripe.c 2002-12-16 09:40:48.000000000 +0000
+++ source/drivers/md/dm-stripe.c 2002-12-16 09:40:53.000000000 +0000
@@ -131,6 +131,15 @@
                 return -EINVAL;
         }
 
+ /*
+ * Do we have enough arguments for that many stripes ?
+ */
+ if (argc != (2 + 2 * stripes)) {
+ ti->error = "dm-stripe: Not enough destinations "
+ "specified";
+ return -EINVAL;
+ }
+
         sc = alloc_context(stripes);
         if (!sc) {
                 ti->error = "dm-stripe: Memory allocation for striped context "
@@ -151,13 +160,6 @@
          * Get the stripe destinations.
          */
         for (i = 0; i < stripes; i++) {
- if (argc < 2) {
- ti->error = "dm-stripe: Not enough destinations "
- "specified";
- kfree(sc);
- return -EINVAL;
- }
-
                 argv += 2;
 
                 r = get_stripe(ti, sc, i, argv);
-
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