tree 9802cb9b558882a5df9c4de016c937d3047572f4
parent b062ad86dcd33ab39be5060b0655d8e13834b167
author Fam Zheng <famz@redhat.com> 1431678965 +0800
committer Kevin Wolf <kwolf@redhat.com> 1432307281 +0200

block: Detect multiplication overflow in bdrv_getlength

Bogus image may have a large total_sectors that will overflow the
multiplication. For cleanness, fix the return code so the error message
will be meaningful.

Reported-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>