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netrom: fix invalid use of sizeof in nr_recvmsg()

sizeof() when applied to a pointer typed expression gives the size of the
pointer, not that of the pointed data.
Introduced by commit 3ce5ef(netrom: fix info leak via msg_name in nr_recvmsg)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit c802d759623acbd6e1ee9fbdabae89159a513913 1 parent 65d8013
Wei Yongjun authored davem330 committed
Showing with 1 addition and 1 deletion.
  1. +1 −1  net/netrom/af_netrom.c
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2  net/netrom/af_netrom.c
@@ -1173,7 +1173,7 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock,
}
if (sax != NULL) {
- memset(sax, 0, sizeof(sax));
+ memset(sax, 0, sizeof(*sax));
sax->sax25_family = AF_NETROM;
skb_copy_from_linear_data_offset(skb, 7, sax->sax25_call.ax25_call,
AX25_ADDR_LEN);
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