linux-kernel - [PATCH 4.9 23/37] usbip: Fix incorrect double assignment to udc->ud.tcp

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Message-Id: <20210426072818.037894368@linuxfoundation.org>
Date:   Mon, 26 Apr 2021 09:29:24 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Shuah Khan <skhan@...uxfoundation.org>,
        Colin Ian King <colin.king@...onical.com>,
        Tom Seewald <tseewald@...il.com>
Subject: [PATCH 4.9 23/37] usbip: Fix incorrect double assignment to udc->ud.tcp_rx

From: Colin Ian King <colin.king@...onical.com>

commit 9858af27e69247c5d04c3b093190a93ca365f33d upstream.

Currently udc->ud.tcp_rx is being assigned twice, the second assignment
is incorrect, it should be to udc->ud.tcp_tx instead of rx. Fix this.

Fixes: 46613c9dfa96 ("usbip: fix vudc usbip_sockfd_store races leading to gpf")
Acked-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Colin Ian King <colin.king@...onical.com>
Cc: stable <stable@...r.kernel.org>
Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/20210311104445.7811-1-colin.king@canonical.com
Signed-off-by: Tom Seewald <tseewald@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/usbip/vudc_sysfs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/usbip/vudc_sysfs.c
+++ b/drivers/usb/usbip/vudc_sysfs.c
@@ -187,7 +187,7 @@ static ssize_t store_sockfd(struct devic
 
 		udc->ud.tcp_socket = socket;
 		udc->ud.tcp_rx = tcp_rx;
-		udc->ud.tcp_rx = tcp_tx;
+		udc->ud.tcp_tx = tcp_tx;
 		udc->ud.status = SDEV_ST_USED;
 
 		spin_unlock_irq(&udc->ud.lock);