| Message ID | 20210521133109.17396-1-johan@kernel.org (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 746e4acf87bcacf1406e05ef24a0b7139147c63e |
| Headers | show |
| Series | USB: trancevibrator: fix control-request direction | expand |
On Fri, May 21, 2021 at 03:31:09PM +0200, Johan Hovold wrote: > The direction of the pipe argument must match the request-type direction > bit or control requests may fail depending on the host-controller-driver > implementation. > > Fix the set-speed request which erroneously used USB_DIR_IN and update > the default timeout argument to match (same value). > > Fixes: 5638e4d92e77 ("USB: add PlayStation 2 Trance Vibrator driver") > Cc: stable@vger.kernel.org # 2.6.19 > Signed-off-by: Johan Hovold <johan@kernel.org> > --- > drivers/usb/misc/trancevibrator.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/usb/misc/trancevibrator.c b/drivers/usb/misc/trancevibrator.c > index a3dfc77578ea..26baba3ab7d7 100644 > --- a/drivers/usb/misc/trancevibrator.c > +++ b/drivers/usb/misc/trancevibrator.c > @@ -61,9 +61,9 @@ static ssize_t speed_store(struct device *dev, struct device_attribute *attr, > /* Set speed */ > retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0), > 0x01, /* vendor request: set speed */ > - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, > + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, > tv->speed, /* speed value */ > - 0, NULL, 0, USB_CTRL_GET_TIMEOUT); > + 0, NULL, 0, USB_CTRL_SET_TIMEOUT); > if (retval) { > tv->speed = old; > dev_dbg(&tv->udev->dev, "retval = %d\n", retval); > -- > 2.26.3 > Thanks for searching the whole tree for these mistakes, nice work! greg k-h
On Fri, May 21, 2021 at 08:07:44PM +0200, Greg Kroah-Hartman wrote: > On Fri, May 21, 2021 at 03:31:09PM +0200, Johan Hovold wrote: > > The direction of the pipe argument must match the request-type direction > > bit or control requests may fail depending on the host-controller-driver > > implementation. > > > > Fix the set-speed request which erroneously used USB_DIR_IN and update > > the default timeout argument to match (same value). > > > > Fixes: 5638e4d92e77 ("USB: add PlayStation 2 Trance Vibrator driver") > > Cc: stable@vger.kernel.org # 2.6.19 > > Signed-off-by: Johan Hovold <johan@kernel.org> > > --- > > drivers/usb/misc/trancevibrator.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/usb/misc/trancevibrator.c b/drivers/usb/misc/trancevibrator.c > > index a3dfc77578ea..26baba3ab7d7 100644 > > --- a/drivers/usb/misc/trancevibrator.c > > +++ b/drivers/usb/misc/trancevibrator.c > > @@ -61,9 +61,9 @@ static ssize_t speed_store(struct device *dev, struct device_attribute *attr, > > /* Set speed */ > > retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0), > > 0x01, /* vendor request: set speed */ > > - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, > > + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, > > tv->speed, /* speed value */ > > - 0, NULL, 0, USB_CTRL_GET_TIMEOUT); > > + 0, NULL, 0, USB_CTRL_SET_TIMEOUT); > > if (retval) { > > tv->speed = old; > > dev_dbg(&tv->udev->dev, "retval = %d\n", retval); > > -- > > 2.26.3 > > > > Thanks for searching the whole tree for these mistakes, nice work! Thanks, but I only did a first quick scan of the more obvious mismatches when the USB_DIR macros was being used. I found a few more when grepping for harcoded request types but that still won't catch drivers that use defines for the type and other even harder to detect variants. Syzbot already found a couple more but it usually doesn't check anything beyond the probe function. Johan
diff --git a/drivers/usb/misc/trancevibrator.c b/drivers/usb/misc/trancevibrator.c index a3dfc77578ea..26baba3ab7d7 100644 --- a/drivers/usb/misc/trancevibrator.c +++ b/drivers/usb/misc/trancevibrator.c @@ -61,9 +61,9 @@ static ssize_t speed_store(struct device *dev, struct device_attribute *attr, /* Set speed */ retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0), 0x01, /* vendor request: set speed */ - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, tv->speed, /* speed value */ - 0, NULL, 0, USB_CTRL_GET_TIMEOUT); + 0, NULL, 0, USB_CTRL_SET_TIMEOUT); if (retval) { tv->speed = old; dev_dbg(&tv->udev->dev, "retval = %d\n", retval);
The direction of the pipe argument must match the request-type direction bit or control requests may fail depending on the host-controller-driver implementation. Fix the set-speed request which erroneously used USB_DIR_IN and update the default timeout argument to match (same value). Fixes: 5638e4d92e77 ("USB: add PlayStation 2 Trance Vibrator driver") Cc: stable@vger.kernel.org # 2.6.19 Signed-off-by: Johan Hovold <johan@kernel.org> --- drivers/usb/misc/trancevibrator.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)