On 11/02/2015 04:32 PM, John Snow wrote: > If we create a buffer directly on the stack by using 12 bytes, there's > no guarantee the 64bit value we want to swap will be aligned, which > could cause errors with undefined behavior. > > Spotted with clang -fsanitize=undefined and observed in iotests 15, 26, > 44, 115 and 121. > > Signed-off-by: John Snow <js...@redhat.com> > --- > block/qcow2-refcount.c | 11 +++++++---- > 1 file changed, 7 insertions(+), 4 deletions(-)
Reviewed-by: Eric Blake <ebl...@redhat.com> -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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