[Qemu-devel] [PULL 4/7] vmdk: byteswap VMDK4Header.desc_offset field

[Kevin Wolf <kwolf@redhat.com>]

From: Stefan Hajnoczi <stefanha@redhat.com>

Remember to byteswap VMDK4Header.desc_offset on big-endian machines.

Cc: qemu-stable@nongnu.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/vmdk.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/block/vmdk.c b/block/vmdk.c
index 608daaf..ee50a73 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -507,8 +507,11 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
     if (ret < 0) {
         return ret;
     }
-    if (header.capacity == 0 && header.desc_offset) {
-        return vmdk_open_desc_file(bs, flags, header.desc_offset << 9);
+    if (header.capacity == 0) {
+        int64_t desc_offset = le64_to_cpu(header.desc_offset);
+        if (desc_offset) {
+            return vmdk_open_desc_file(bs, flags, desc_offset << 9);
+        }
     }
 
     if (le64_to_cpu(header.gd_offset) == VMDK4_GD_AT_END) {
-- 
1.8.1.4