File 0044-nbd-client-fix-nbd_negotiate_simple.patch of Package qemu

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File 0044-nbd-client-fix-nbd_negotiate_simple.patch of Package qemu (Revision c0e27852a6280021823822ba5f36979e)

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From 7c5f7f5e8249a4294254168bb50507589203a5e6 Mon Sep 17 00:00:00 2001
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Date: Fri, 27 Apr 2018 17:20:01 +0300
Subject: [PATCH] nbd/client: fix nbd_negotiate_simple_meta_context

Initialize received variable. Otherwise, is is possible for server to
answer without any contexts, but we will set context_id to something
random (received_id is not initialized too) and return 1, which is
wrong.

To solve it, just initialize received to false. Initialize received_id
too, just to make all possible checkers happy.

Bug was introduced in 78a33ab58782efdb206de14 "nbd: BLOCK_STATUS for
standard get_block_status function: client part" with the whole
function.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20180427142002.21930-2-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
CC: qemu-stable@nongnu.org
Signed-off-by: Eric Blake <eblake@redhat.com>
(cherry picked from commit 89aa0d87634e2cb98517509dc8bdb876f26ecf8b)
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 nbd/client.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nbd/client.c b/nbd/client.c
index b9e175d1c2..7f35b5c323 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -613,8 +613,8 @@ static int nbd_negotiate_simple_meta_context(QIOChannel *ioc,
 {
     int ret;
     NBDOptionReply reply;
-    uint32_t received_id;
-    bool received;
+    uint32_t received_id = 0;
+    bool received = false;
     uint32_t export_len = strlen(export);
     uint32_t context_len = strlen(context);
     uint32_t data_len = sizeof(export_len) + export_len +

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File 0044-nbd-client-fix-nbd_negotiate_simple.patch of Package qemu (Revision c0e27852a6280021823822ba5f36979e)

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