On 10/25/2017 02:56 AM, Bart Van Assche wrote: > Avoid that submitting an SG_IO ioctl triggers a kernel oops that > is preceded by: > > usercopy: kernel memory overwrite attempt detected to (null) (<null>) (6 > bytes) > kernel BUG at mm/usercopy.c:72!
Seems I saw a note on a runtime oops triggered by this patch yesterday, but now I can't seem to find it... Did you see it? > diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig > index 4a438b8abe27..b0b2100763bf 100644 > --- a/drivers/block/Kconfig > +++ b/drivers/block/Kconfig > @@ -450,6 +450,7 @@ config VIRTIO_BLK_SCSI > bool "SCSI passthrough request for the Virtio block driver" > depends on VIRTIO_BLK > select BLK_SCSI_REQUEST > + select SCSI_MOD Should this be SCSI? That's what libata does. It may be correct as-is, didn't look too deeply, just curious why it's different. -- Jens Axboe
