opening a BUG in kernel bugzilla (https://bugzilla.kernel.org/)

Hi all, Can we open a BUG in kernel bugzilla (https://bugzilla.kernel.org/) against a kernel image which was found on an image which was built from most recent build of Linus tree (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git) but is not reproducible (yet) against the official kernel images on https://www.kernel.org/ ? Or could it be event worse ? I mean, could we open BUGS against **each** of the images under kernel.org (for example, 4.1-rc7, which is the latest) ? Or only for those labeled as "longterm" or "stable" ? Regards, Kevin