netdev - [PATCH] net: fix accept4() flags not work

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Message-Id: <1483872450-2706-1-git-send-email-cugyly@163.com>
Date:   Sun,  8 Jan 2017 18:47:30 +0800
From:   yuan linyu <cugyly@....com>
To:     netdev@...r.kernel.org
Cc:     "David S . Miller" <davem@...emloft.net>,
        yuan linyu <Linyu.Yuan@...atel-sbell.com.cn>
Subject: [PATCH] net: fix accept4() flags not work

From: yuan linyu <Linyu.Yuan@...atel-sbell.com.cn>

user input flags store to newsock which should be used.

Signed-off-by: yuan linyu <Linyu.Yuan@...atel-sbell.com.cn>
---
 net/socket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/socket.c b/net/socket.c
index a8c2307..415f988 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1508,7 +1508,7 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
 	if (err)
 		goto out_fd;
 
-	err = sock->ops->accept(sock, newsock, sock->file->f_flags);
+	err = sock->ops->accept(sock, newsock, newsock->file->f_flags);
 	if (err < 0)
 		goto out_fd;
 
-- 
2.7.4