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Subject[020/123] USB: Fix kernel oops with g_ether and Windows
From: Maxim Osipov <maxim.osipov@gmail.com>

commit 037d3656adbd7e8cb848f01cf5dec423ed76bbe7 upstream.

Please find attached patch for
https://bugzilla.kernel.org/show_bug.cgi?id=16023 problem.


Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/usb/gadget/rndis.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -291,9 +291,13 @@ gen_ndis_query_resp (int configNr, u32 O
/* mandatory */
case OID_GEN_VENDOR_DESCRIPTION:
pr_debug("%s: OID_GEN_VENDOR_DESCRIPTION\n", __func__);
- length = strlen (rndis_per_dev_params [configNr].vendorDescr);
- memcpy (outbuf,
- rndis_per_dev_params [configNr].vendorDescr, length);
+ if ( rndis_per_dev_params [configNr].vendorDescr ) {
+ length = strlen (rndis_per_dev_params [configNr].vendorDescr);
+ memcpy (outbuf,
+ rndis_per_dev_params [configNr].vendorDescr, length);
+ } else {
+ outbuf[0] = 0;
+ }
retval = 0;
break;




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