> Hi, > > looking at this patch > > USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails > > it seems to me that pretty much all kernels are affected. > Should this go into the stable trees?
Hi, Alan Stern was reluctant to fix this bug because there is a small chance that somebody somewhere abuses it to exceed the somewhat arbitrary and artificial "90% of total bandwidth" limit imposed on periodic transfers by the USB spec and normally enforced by ohci_hcd. However, I have later determined that it's not possible to exploit this bug like that on kernels 3.18+ because commit 81e38333513c causes that the code which formerly miscalculated bandwidth allocations now simply crashes. So this patch should go to 3.18+ to fix those crashes. I think I've posted my findings to linux-usb but apparently they were missed or forgotten and I forgot about this matter too. Regards, MP -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
