Problem with date field for VirtualBox shared folders

Hi, As described in boo#1219766 (Virtualbox USB passthrough fails), modern openSUSE TW kernel are garbling the date field of shared folders. Fortunately, the dates on the host are still OK - it is only the results shown in the guest are wrong. It is known that kernel 6.6.1 is OK, but somewhere in the 6.7.X series, this problem happens. I generated kernels 6.6.0 and 6.8-rc6 from the mainline kernel, and both are OK. I conclude that the problem is with some of the patches applied to the openSUSE kernels. That matches the fact that only openSUSE seems to have this problem. Is it possible to bisect the openSUSE kernels? If so, that would be the quickest way to identify the first kernel with this problem. Thanks, Larry Finger