From: Stephen Hemminger <stephen@networkplumber.org>
Date: Fri, 6 Oct 2017 00:35:05 +0000 (-0700)
Subject: vmbus: initialize reserved fields in messages
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=33d426a957dfc9bea13c4e05d0319b1d0a854586;p=linux.git

vmbus: initialize reserved fields in messages

Make sure and initialize reserved fields in messages to host,
rather than passing stack junk.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 894b67ac2cae5..a406beb10dd05 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -745,6 +745,7 @@ int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel,
 	desc.dataoffset8 = descsize >> 3; /* in 8-bytes granularity */
 	desc.length8 = (u16)(packetlen_aligned >> 3);
 	desc.transactionid = requestid;
+	desc.reserved = 0;
 	desc.rangecount = pagecount;
 
 	for (i = 0; i < pagecount; i++) {
@@ -788,6 +789,7 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
 	desc->dataoffset8 = desc_size >> 3; /* in 8-bytes granularity */
 	desc->length8 = (u16)(packetlen_aligned >> 3);
 	desc->transactionid = requestid;
+	desc->reserved = 0;
 	desc->rangecount = 1;
 
 	bufferlist[0].iov_base = desc;