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iucv: prevent information leak in iucv_message 

Initialize storage for the future IUCV header that will be included
in the transmitted packet. Some of the header fields are unused with
HiperSockets transport, and will contain data left from some other
functions.

Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eugene Crosser 2015-12-11 12:27:50 +01:00 committed by David S. Miller
parent 5241c2d7c5
commit 0506eb01f7
1 changed files with 1 additions and 1 deletions
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2
net/iucv/af_iucv.c
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@ -1031,7 +1031,7 @@ static int iucv_sock_sendmsg(struct socket *sock, struct msghdr *msg,
struct sock *sk = sock->sk;
struct iucv_sock *iucv = iucv_sk(sk);
struct sk_buff *skb;
struct iucv_message txmsg;
struct iucv_message txmsg = {0};
struct cmsghdr *cmsg;
int cmsg_done;
long timeo;