diff options
| author | Johan Hovold <johan@kernel.org> | 2017-10-04 11:01:13 +0200 |
|---|---|---|
| committer | Jin Qian <jinqian@android.com> | 2017-11-16 10:53:39 -0800 |
| commit | 6b680316209548e7565e4273d0fc7a01ac0adfd8 (patch) | |
| tree | 3f66fc5050dfd58c2c6312e24e69c4c92de47ad6 | |
| parent | 36735f30c65a22238d462d8d19029cabaf089437 (diff) | |
| download | tegra-6b680316209548e7565e4273d0fc7a01ac0adfd8.tar.gz | |
UPSTREAM: USB: serial: console: fix use-after-free after failed setup
commit 299d7572e46f98534033a9e65973f13ad1ce9047
Make sure to reset the USB-console port pointer when console setup fails
in order to avoid having the struct usb_serial be prematurely freed by
the console code when the device is later disconnected.
Change-Id: I46e86fddd10611a30e7f4ab62ba07dc6eccc0312
Fixes: 73e487fdb75f ("[PATCH] USB console: fix disconnection issues")
Cc: stable <stable@vger.kernel.org> # 2.6.18
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
| -rw-r--r-- | drivers/usb/serial/console.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c index 5f3bcd31e204..f3bbe210119d 100644 --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -188,6 +188,7 @@ static int usb_console_setup(struct console *co, char *options) kfree(tty); reset_open_count: port->port.count = 0; + info->port = NULL; usb_autopm_put_interface(serial->interface); error_get_interface: usb_serial_put(serial); |