On Thu, Jan 04, 2024 at 03:56:16PM +0530, Udipto Goswami wrote:
> Currently,the function update_port_device_state gets the usb_hub from
> udev->parent by calling usb_hub_to_struct_hub.
> However, in case the actconfig or the maxchild is 0, the usb_hub would
> be NULL and upon further accessing to get port_dev would result in null
> pointer dereference.
Is this true for any real (or fake) hardware?
>
> Fix this by introducing an if check after the usb_hub is populated.
>
> Fixes: 83cb2604f641 ("usb: core: add sysfs entry for usb device state")
> Signed-off-by: Udipto Goswami <quic_ugoswami@xxxxxxxxxxx>
Any specific reason you don't want this backported to the stable kernels
that include the commit you marked this as a fix for?
As my bot says:
- You have marked a patch with a "Fixes:" tag for a commit that is in an
older released kernel, yet you do not have a cc: stable line in the
signed-off-by area at all, which means that the patch will not be
applied to any older kernel releases. To properly fix this, please
follow the documented rules in the
Documentation/process/stable-kernel-rules.rst file for how to resolve
this.
thanks,
greg k-h
