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authorDaniel Borkmann <dborkman@redhat.com>2013-02-08 03:04:34 +0000
committerDavid S. Miller <davem@davemloft.net>2013-02-08 14:54:24 -0500
commit6ba542a291a5e558603ac51cda9bded347ce7627 (patch)
treed4afee9ead818955eafb2cd67a8ad0e12f82744f
parentab54ee80aa7585f9666ff4dd665441d7ce41f1e8 (diff)
downloadlinux-stericsson-6ba542a291a5e558603ac51cda9bded347ce7627.tar.gz
net: sctp: sctp_setsockopt_auth_key: use kzfree instead of kfree
In sctp_setsockopt_auth_key, we create a temporary copy of the user passed shared auth key for the endpoint or association and after internal setup, we free it right away. Since it's sensitive data, we should zero out the key before returning the memory back to the allocator. Thus, use kzfree instead of kfree, just as we do in sctp_auth_key_put(). Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/sctp/socket.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 9e65758cb038..cedd9bf67b8c 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3390,7 +3390,7 @@ static int sctp_setsockopt_auth_key(struct sock *sk,
ret = sctp_auth_set_key(sctp_sk(sk)->ep, asoc, authkey);
out:
- kfree(authkey);
+ kzfree(authkey);
return ret;
}