3.6.11.9-rc1 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Stephane Grosjean <s.grosj...@peak-system.com>
[ Upstream commit 3c322a56b01695df15c70bfdc2d02e0ccd80654e ]
Fix possibly wrong memcpy() bytes length since some CAN records received from
PCAN-USB could define a DLC field in range [9..15].
In that case, the real DLC value MUST be used to move forward the record pointer
but, only 8 bytes max. MUST be copied into the data field of the struct
can_frame object of the skb given to the network core.
Cc: linux-stable <sta...@vger.kernel.org>
Signed-off-by: Stephane Grosjean <s.grosj...@peak-system.com>
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Steven Rostedt <rost...@goodmis.org>
---
drivers/net/can/usb/peak_usb/pcan_usb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c
b/drivers/net/can/usb/peak_usb/pcan_usb.c
index 25723d8..925ab8e 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -649,7 +649,7 @@ static int pcan_usb_decode_data(struct pcan_usb_msg_context
*mc, u8 status_len)
if ((mc->ptr + rec_len) > mc->end)
goto decode_failed;
- memcpy(cf->data, mc->ptr, rec_len);
+ memcpy(cf->data, mc->ptr, cf->can_dlc);
mc->ptr += rec_len;
}
--
1.7.10.4
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