At least I have seen the issue on Debian 3.14 and 3.16. Is your patch going to be backported to linux-stable? The computer crashes very very badly On Wed, Aug 27, 2014 at 4:25 PM, Mathias Nyman <mathias.nyman@xxxxxxxxx> wrote: > On 08/26/2014 06:47 PM, Ricardo Ribalda Delgado wrote: >> While testing a usb gadget I managed to crash completely the host >> computer. This was due to a NULL pointer derefence. >> >> This patch avoids the crash although the kernel still outputs some >> warnings. >> >> Without this patch, kernels from (at least) 3.14 can be crashed with >> mass storage gadgets. >> >> Affected host: NEC Corporation uPD720200 USB 3.0 >> > > > This should not be necessary anymore after > commit 365038d83313951d6ace15342eb24624bbef1666 > xhci: rework cycle bit checking for new dequeue pointers > > http://marc.info/?l=linux-usb&m=140844993115671&w=2 > > Which was just added to Greg's usb-linus branch. > It checks that the new_deq_ptr and new_deq_seg are valid before calling > xhci_queue_new_dequeue_state() > > -Mathias > > > > > -- Ricardo Ribalda -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
