From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Wei Yongjun , "David S. Miller" , Kamal Mostafa Subject: [PATCH 007/105] netrom: fix invalid use of sizeof in nr_recvmsg() Date: Fri, 28 Jun 2013 11:50:29 -0700 Message-Id: <1372445527-24414-8-git-send-email-kamal@canonical.com> In-Reply-To: <1372445527-24414-1-git-send-email-kamal@canonical.com> References: <1372445527-24414-1-git-send-email-kamal@canonical.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.8.13.4 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Wei Yongjun commit c802d759623acbd6e1ee9fbdabae89159a513913 upstream. 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 Signed-off-by: David S. Miller Signed-off-by: Kamal Mostafa --- net/netrom/af_netrom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 14c106b..f334fbd 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1177,7 +1177,7 @@ 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); -- 1.8.1.2