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authorMathias Krause <minipli@googlemail.com>2012-08-15 11:31:45 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-02 09:47:06 -0700
commitd5d3ca708a08caa3a55531b6b781edcb0f64724d (patch)
tree3f2747a82f3c89c2b5af4d55aa58075bd7d7b891 /net
parent9a897ce370b0bbe57961372c67bd0ffc2dd3f7ea (diff)
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atm: fix info leak via getsockname()
[ Upstream commit 3c0c5cfdcd4d69ffc4b9c0907cec99039f30a50a ] 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: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/atm/pvc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/atm/pvc.c b/net/atm/pvc.c
index 437ee70..db0dd47 100644
--- a/net/atm/pvc.c
+++ b/net/atm/pvc.c
@@ -94,6 +94,7 @@ 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;