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| author | Max Reitz <mreitz@redhat.com> | 2017-10-09 23:55:31 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-10-26 15:01:14 +0200 |
| commit | e400ad1e1f0127b4fdabcb1c8de1e99be91788df (patch) | |
| tree | 3cd1d822856c7fc8784b9f70564f9272cb70f480 /balloon.c | |
| parent | 233521b1999810036f63d060ce021d30a8ce0504 (diff) | |
| download | qemu-e400ad1e1f0127b4fdabcb1c8de1e99be91788df.tar.gz | |
qcow2: Fix unaligned preallocated truncation
A qcow2 image file's length is not required to have a length that is a
multiple of the cluster size. However, qcow2_refcount_area() expects an
aligned value for its @start_offset parameter, so we need to round
@old_file_size up to the next cluster boundary.
Reported-by: Ping Li <pingl@redhat.com>
Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1414049
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20171009215533.12530-2-mreitz@redhat.com
Cc: qemu-stable@nongnu.org
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'balloon.c')
0 files changed, 0 insertions, 0 deletions