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| author | Kevin Wolf <kwolf@redhat.com> | 2013-12-04 11:06:36 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-12-04 11:29:37 +0100 |
| commit | f8413b3c23b08a547ce18609acc6fae5fd04ed5c (patch) | |
| tree | 01cb8f2707cb3fe8d626ef2550d304c074cfe73a /disas | |
| parent | 66f6b8143ba0fd873a0b4b4b3da41cf604bc5a11 (diff) | |
| download | qemu-f8413b3c23b08a547ce18609acc6fae5fd04ed5c.zip qemu-f8413b3c23b08a547ce18609acc6fae5fd04ed5c.tar.gz qemu-f8413b3c23b08a547ce18609acc6fae5fd04ed5c.tar.bz2 | |
qcow2: Zero-initialise first cluster for new images
Strictly speaking, this is only required for has_zero_init() == false,
but it's easy enough to just do a cluster-aligned write that is padded
with zeros after the header.
This fixes that after 'qemu-img create' header extensions are attempted
to be parsed that are really just random leftover data.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'disas')
0 files changed, 0 insertions, 0 deletions