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authorMathias Krause <minipli@googlemail.com>2012-08-15 11:31:45 +0000
committerDavid S. Miller <davem@davemloft.net>2012-08-15 21:36:30 -0700
commit3c0c5cfdcd4d69ffc4b9c0907cec99039f30a50a (patch)
tree11bb3194625ed6bc0a169f39b2a802b5ff7c699d /net/atm/pvc.c
parente862f1a9b7df4e8196ebec45ac62295138aa3fc2 (diff)
downloadlinux-stericsson-3c0c5cfdcd4d69ffc4b9c0907cec99039f30a50a.tar.gz
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: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/atm/pvc.c')
-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 3a734919c36c..ae0324021407 100644
--- a/net/atm/pvc.c
+++ b/net/atm/pvc.c
@@ -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;