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Commit 3c0c5cfd authored by Mathias Krause's avatar Mathias Krause Committed by David S. Miller
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atm: fix info leak via getsockname() 



The ATM code fails to initialize the two padding bytes of struct
sockaddr_atmpvc inserted for alignment. Add an explicit memset(0)
before filling the structure to avoid the info leak.

Signed-off-by: default avatarMathias Krause <minipli@googlemail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e862f1a9

net/atm/pvc.c

+1 −0
Original line number Diff line number Diff line
@@ -95,6 +95,7 @@ static int pvc_getname(struct socket *sock, struct sockaddr *sockaddr, 
		return -ENOTCONN;

	*sockaddr_len = sizeof(struct sockaddr_atmpvc);

	addr = (struct sockaddr_atmpvc *)sockaddr;

	memset(addr, 0, sizeof(*addr));

	addr->sap_family = AF_ATMPVC;

	addr->sap_addr.itf = vcc->dev->number;

	addr->sap_addr.vpi = vcc->vpi;