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Version the previous USB patches
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18 changed files with 17 additions and 20 deletions
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From 299d7572e46f98534033a9e65973f13ad1ce9047 Mon Sep 17 00:00:00 2001
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From: Johan Hovold <johan@kernel.org>
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Date: Wed, 4 Oct 2017 11:01:13 +0200
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Subject: [PATCH] USB: serial: console: fix use-after-free after failed setup
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Make sure to reset the USB-console port pointer when console setup fails
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in order to avoid having the struct usb_serial be prematurely freed by
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the console code when the device is later disconnected.
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Fixes: 73e487fdb75f ("[PATCH] USB console: fix disconnection issues")
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Cc: stable <stable@vger.kernel.org> # 2.6.18
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Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Johan Hovold <johan@kernel.org>
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---
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drivers/usb/serial/console.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
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index ed8ba3ef5c794..43a862a90a775 100644
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--- a/drivers/usb/serial/console.c
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+++ b/drivers/usb/serial/console.c
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@@ -186,6 +186,7 @@ static int usb_console_setup(struct console *co, char *options)
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tty_kref_put(tty);
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reset_open_count:
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port->port.count = 0;
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+ info->port = NULL;
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usb_autopm_put_interface(serial->interface);
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error_get_interface:
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usb_serial_put(serial);
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