linux-kernel - [PATCH] pty: fix O_CLOEXEC for TIOCGPTPEER

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Date:   Thu, 19 Jul 2018 10:43:46 +0200
From:   Matthijs van Duin <matthijsvanduin@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>
Cc:     linux-kernel@...r.kernel.org, Aleksa Sarai <asarai@...e.de>,
        Arnd Bergmann <arnd@...db.de>,
        Eric W Biederman <ebiederm@...ssion.com>
Subject: [PATCH] pty: fix O_CLOEXEC for TIOCGPTPEER

It was being ignored because the flags were not passed to fd allocation.

Fixes: 54ebbfb16034 ("tty: add TIOCGPTPEER ioctl")
Signed-off-by: Matthijs van Duin <matthijsvanduin@...il.com>
---
 drivers/tty/pty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index b0e2c4847a5d..678406e0948b 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -625,7 +625,7 @@ int ptm_open_peer(struct file *master, struct tty_struct *tty, int flags)
 	if (tty->driver != ptm_driver)
 		return -EIO;
 
-	fd = get_unused_fd_flags(0);
+	fd = get_unused_fd_flags(flags);
 	if (fd < 0) {
 		retval = fd;
 		goto err;
-- 
2.18.0