Re: [PATCH] [PATCH] usb: rtl8150: Initialize buffers to fix KMSAN uninit-value in rtl8150_open

[Greg KH <gregkh@linuxfoundation.org>]

On Tue, Nov 04, 2025 at 04:48:37PM +0000, Dharanitharan R wrote:
> KMSAN reported an uninitialized value use in rtl8150_open().
> Initialize rx_skb->data and intr_buff before submitting URBs to
> ensure memory is in a defined state.
> 
> Reported-by: syzbot+b4d5d8faea6996fd@syzkaller.appspotmail.com
> Signed-off-by: Dharanitharan R <dharanitharan725@gmail.com>
> ---
>  drivers/net/usb/rtl8150.c | 21 ++++++++++++++-------
>  1 file changed, 14 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
> index 278e6cb6f4d9..f1a868f0032e 100644
> --- a/drivers/net/usb/rtl8150.c
> +++ b/drivers/net/usb/rtl8150.c
> @@ -719,14 +719,15 @@ static netdev_tx_t rtl8150_start_xmit(struct sk_buff *skb,
>  
>  static void set_carrier(struct net_device *netdev)
>  {
> -	rtl8150_t *dev = netdev_priv(netdev);
> -	short tmp;
> +    rtl8150_t *dev = netdev_priv(netdev);
> +    short tmp;

Always run checkpatch on your changes so you don't get grumpy
maintainers asking why you didn't run checkpatch on your change :)

Please fix and send a v2.

thanks,

greg k-h