From eaaeae50ea0230be49e4aca5ec48f6978537a242 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 7 Feb 2013 00:55:37 +0000
Subject: net: sctp: sctp_auth_key_put: use kzfree instead of kfree

[ Upstream commit 586c31f3bf04c290dc0a0de7fc91d20aa9a5ee53 ]

For sensitive data like keying material, it is common practice to zero
out keys before returning the memory back to the allocator. Thus, use
kzfree instead of kfree.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sctp/auth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'net')

diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index 865e68fef21..418ebe43d31 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -71,7 +71,7 @@ void sctp_auth_key_put(struct sctp_auth_bytes *key)
 		return;
 
 	if (atomic_dec_and_test(&key->refcnt)) {
-		kfree(key);
+		kzfree(key);
 		SCTP_DBG_OBJCNT_DEC(keys);
 	}
 }
-- 
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