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Commit e862f1a9 authored by Mathias Krause's avatar Mathias Krause Committed by David S. Miller
Browse files

atm: fix info leak in getsockopt(SO_ATMPVC) 



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 e3bc4ffb

net/atm/common.c

+1 −0
Original line number Diff line number Diff line
@@ -812,6 +812,7 @@ int vcc_getsockopt(struct socket *sock, int level, int optname, 


		if (!vcc->dev || !test_bit(ATM_VF_ADDR, &vcc->flags))

			return -ENOTCONN;

		memset(&pvc, 0, sizeof(pvc));

		pvc.sap_family = AF_ATMPVC;

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

		pvc.sap_addr.vpi = vcc->vpi;