Re: [PATCH 2/3] net: qrtr: Add MHI transport layer

From: Bjorn Andersson
Date: Wed Apr 01 2020 - 03:10:29 EST


On Tue 31 Mar 23:44 PDT 2020, Manivannan Sadhasivam wrote:
> diff --git a/net/qrtr/mhi.c b/net/qrtr/mhi.c
[..]
> +static void qcom_mhi_qrtr_ul_callback(struct mhi_device *mhi_dev,
> + struct mhi_result *mhi_res)
> +{
> + struct sk_buff *skb = (struct sk_buff *)mhi_res->buf_addr;
> +
> + consume_skb(skb);
> + if (skb->sk)
> + sock_put(skb->sk);

Don't you need to do this in opposite order, to avoid a use after free?

Regards,
Bjorn