linux-kernel - [48/74] key: Fix resource leak

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Date:	Sun, 07 Apr 2013 23:45:42 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org, "Alan Cox" <alan@...ux.intel.com>,
	"David Howells" <dhowells@...hat.com>
Subject: [48/74] key: Fix resource leak

3.2.43-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Alan Cox <alan@...ux.intel.com>

commit a84a921978b7d56e0e4b87ffaca6367429b4d8ff upstream.

On an error iov may still have been reallocated and need freeing

Signed-off-by: Alan Cox <alan@...ux.intel.com>
Signed-off-by: David Howells <dhowells@...hat.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 security/keys/keyctl.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1067,12 +1067,12 @@ long keyctl_instantiate_key_iov(key_seri
 	ret = rw_copy_check_uvector(WRITE, _payload_iov, ioc,
 				    ARRAY_SIZE(iovstack), iovstack, &iov, 1);
 	if (ret < 0)
-		return ret;
+		goto err;
 	if (ret == 0)
 		goto no_payload_free;
 
 	ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
-
+err:
 	if (iov != iovstack)
 		kfree(iov);
 	return ret;

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