This is a note to let you know that I've just added the patch titled
USB: keyspan: fix null-deref at probe
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-keyspan-fix-null-deref-at-probe.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From b5122236bba8d7ef62153da5b55cc65d0944c61e Mon Sep 17 00:00:00 2001
From: Johan Hovold <[email protected]>
Date: Mon, 22 Dec 2014 18:39:39 +0100
Subject: USB: keyspan: fix null-deref at probe
From: Johan Hovold <[email protected]>
commit b5122236bba8d7ef62153da5b55cc65d0944c61e upstream.
Fix null-pointer dereference during probe if the interface-status
completion handler is called before the individual ports have been set
up.
Fixes: f79b2d0fe81e ("USB: keyspan: fix NULL-pointer dereferences and
memory leaks")
Reported-by: Richard <[email protected]>
Tested-by: Richard <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/serial/keyspan.c | 20 +++++++++++++++-----
1 file changed, 15 insertions(+), 5 deletions(-)
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -418,6 +418,8 @@ static void usa26_instat_callback(struct
}
port = serial->port[msg->port];
p_priv = usb_get_serial_port_data(port);
+ if (!p_priv)
+ goto resubmit;
/* Update handshaking pin state information */
old_dcd_state = p_priv->dcd_state;
@@ -428,7 +430,7 @@ static void usa26_instat_callback(struct
if (old_dcd_state != p_priv->dcd_state)
tty_port_tty_hangup(&port->port, true);
-
+resubmit:
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err != 0)
@@ -543,6 +545,8 @@ static void usa28_instat_callback(struct
}
port = serial->port[msg->port];
p_priv = usb_get_serial_port_data(port);
+ if (!p_priv)
+ goto resubmit;
/* Update handshaking pin state information */
old_dcd_state = p_priv->dcd_state;
@@ -553,7 +557,7 @@ static void usa28_instat_callback(struct
if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
tty_port_tty_hangup(&port->port, true);
-
+resubmit:
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err != 0)
@@ -630,6 +634,8 @@ static void usa49_instat_callback(struct
}
port = serial->port[msg->portNumber];
p_priv = usb_get_serial_port_data(port);
+ if (!p_priv)
+ goto resubmit;
/* Update handshaking pin state information */
old_dcd_state = p_priv->dcd_state;
@@ -640,7 +646,7 @@ static void usa49_instat_callback(struct
if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
tty_port_tty_hangup(&port->port, true);
-
+resubmit:
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err != 0)
@@ -878,6 +884,8 @@ static void usa90_instat_callback(struct
port = serial->port[0];
p_priv = usb_get_serial_port_data(port);
+ if (!p_priv)
+ goto resubmit;
/* Update handshaking pin state information */
old_dcd_state = p_priv->dcd_state;
@@ -888,7 +896,7 @@ static void usa90_instat_callback(struct
if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
tty_port_tty_hangup(&port->port, true);
-
+resubmit:
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err != 0)
@@ -949,6 +957,8 @@ static void usa67_instat_callback(struct
port = serial->port[msg->port];
p_priv = usb_get_serial_port_data(port);
+ if (!p_priv)
+ goto resubmit;
/* Update handshaking pin state information */
old_dcd_state = p_priv->dcd_state;
@@ -957,7 +967,7 @@ static void usa67_instat_callback(struct
if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
tty_port_tty_hangup(&port->port, true);
-
+resubmit:
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err != 0)
Patches currently in stable-queue which might be from [email protected] are
queue-3.10/usb-cp210x-add-ids-for-cel-usb-sticks-and-meshworks-devices.patch
queue-3.10/usb-keyspan-fix-null-deref-at-probe.patch
queue-3.10/usb-cp210x-fix-id-for-production-cel-meshconnect-usb-stick.patch
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