>> Create a qcow2 directly on bare block device with
>> "-o preallocation=metadata" option. When read this qcow2, it will
>> return pre-existing data on block device, and this may lead to
>> data leakage. This patch add QCOW_OFLAG_ZERO for all preallocated
>> l2 entry to avoid this problem.
>
> Thi
On 05/11/2018 07:37 AM, Ivan Ren wrote:
Create a qcow2 directly on bare block device with
"-o preallocation=metadata" option. When read this qcow2, it will
return pre-existing data on block device, and this may lead to
data leakage. This patch add QCOW_OFLAG_ZERO for all preallocated
l2 entry to
Create a qcow2 directly on bare block device with
"-o preallocation=metadata" option. When read this qcow2, it will
return pre-existing data on block device, and this may lead to
data leakage. This patch add QCOW_OFLAG_ZERO for all preallocated
l2 entry to avoid this problem.
Signed-off-by: Ivan R
