commit 36ecc1481dc8d8c52d43ba18c6b642c1d2fde789
author Matthijs van Duin <matthijsvanduin@gmail.com> Thu Jul 19 10:43:46 2018 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Sat Jul 21 09:08:47 2018 +0200
tree 0c8994062a1ee54fbcbaaadb7bb8f1128ff434c1
parent 3bae8cea04c6db58e5e694e708bd33dac924bf30

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@gmail.com>
Acked-by: Aleksa Sarai <asarai@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/pty.c

diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index b0e2c48..678406e 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;