On Thu, Jun 29, 2023 at 11:58:43AM -0700, Kees Cook wrote: > On Thu, Jun 29, 2023 at 05:36:51PM +0200, Greg KH wrote: > > Boris just reported to me a UBSAN splat in the USB xhci driver in > > Linus's tree that wasn't present in 6.4-final, and given that no USB > > changes are merged yet there, I was confused. > > > > Turns out, I think you all missed a "variable length" structure in the > > xhci driver, which UBSAN is calling out a being an overrun, when really > > it isn't (it's just written that way...) > > > > The splat is: > > > > UBSAN: array-index-out-of-bounds in drivers/usb/host/xhci-hub.c:231:31 > > index 1 is out of range for type '__le32 [1]' > > CPU: 0 PID: 1556 Comm: kworker/0:2 Not tainted 6.4.0+ #7 > > This is fixed here, a couple weeks ago, but maybe it missed your tree: > https://lore.kernel.org/lkml/20230614181307.gonna.256-kees@xxxxxxxxxx/ > > Would you prefer I carry it? To confirm, that's already in my tree and will be going to Linus for 6.5-rc1. thanks, greg k-h
