On Fri, Apr 16, 2021 at 09:32:35AM -0600, Shuah Khan wrote:
> On 4/12/21 12:59 PM, Tom Seewald wrote:
> > commit 9858af27e69247c5d04c3b093190a93ca365f33d upstream.
> >
> > Currently udc->ud.tcp_rx is being assigned twice, the second assignment
> > is incorrect, it should be to udc->ud.tcp_tx instead of rx. Fix this.
> >
> > Fixes: 46613c9dfa96 ("usbip: fix vudc usbip_sockfd_store races leading to gpf")
> > Acked-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
> > Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> > Cc: stable <stable@xxxxxxxxxxxxxxx>
> > Addresses-Coverity: ("Unused value")
> > Link: https://lore.kernel.org/r/20210311104445.7811-1-colin.king@xxxxxxxxxxxxx
> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Signed-off-by: Tom Seewald <tseewald@xxxxxxxxx>
> > ---
> > drivers/usb/usbip/vudc_sysfs.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/usb/usbip/vudc_sysfs.c b/drivers/usb/usbip/vudc_sysfs.c
> > index f44d98eeb36a..51cc5258b63e 100644
> > --- a/drivers/usb/usbip/vudc_sysfs.c
> > +++ b/drivers/usb/usbip/vudc_sysfs.c
> > @@ -187,7 +187,7 @@ static ssize_t store_sockfd(struct device *dev,
> > udc->ud.tcp_socket = socket;
> > udc->ud.tcp_rx = tcp_rx;
> > - udc->ud.tcp_rx = tcp_tx;
> > + udc->ud.tcp_tx = tcp_tx;
> > udc->ud.status = SDEV_ST_USED;
> > spin_unlock_irq(&udc->ud.lock);
> >
>
> Greg,
>
> Please pick this up for 4.9 and 4.14
Why? The commit it says it fixes, 46613c9dfa96 ("usbip: fix vudc
usbip_sockfd_store races leading to gpf"), is not in any kernel older
than 4.19.y at the moment.
Should that commit also be backported?
confused,
greg k-h
