From b03c385c6eee5999f6aadcc516aa0f9fc882df47 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Fri, 22 Jun 2018 18:59:58 +0200
Subject: [PATCH 19/57] migration/block-dirty-bitmap: fix memory leak in
 dirty_bitmap_load_bits

RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20180622190005.21297-12-dgilbert@redhat.com>
Patchwork-id: 81009
O-Subject: [RHEL7.6 qemu-kvm-rhev PATCH 11/18] migration/block-dirty-bitmap: fix memory leak in dirty_bitmap_load_bits
Bugzilla: 1584139
RH-Acked-by: Peter Xu <peterx@redhat.com>
RH-Acked-by: Juan Quintela <quintela@redhat.com>
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>

From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

Release buf on error path too.

Bug was introduced in b35ebdf076d697bc "migration: add postcopy
migration of dirty bitmaps" with the whole function.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20180427142002.21930-3-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 16a2227893dc1d5cad78ed376ad1d7e300978fbe)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 migration/block-dirty-bitmap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
index dd04f10..8819aab 100644
--- a/migration/block-dirty-bitmap.c
+++ b/migration/block-dirty-bitmap.c
@@ -600,6 +600,7 @@ static int dirty_bitmap_load_bits(QEMUFile *f, DirtyBitmapLoadState *s)
         ret = qemu_get_buffer(f, buf, buf_size);
         if (ret != buf_size) {
             error_report("Failed to read bitmap bits");
+            g_free(buf);
             return -EIO;
         }
 
-- 
1.8.3.1