Re: [PATCH bpf v4 1/2] bpf, sockmap: fix potential memory leak on unlikely error case

[Cong Wang <xiyou.wangcong@xxxxxxxxx>]

On Mon, Jul 12, 2021 at 12:56 PM John Fastabend
<john.fastabend@xxxxxxxxx> wrote:
>
> If skb_linearize is needed and fails we could leak a msg on the error
> handling. To fix ensure we kfree the msg block before returning error.
> Found during code review.
>
> Fixes: 4363023d2668e ("bpf, sockmap: Avoid failures from skb_to_sgvec when skb has frag_list")
> Signed-off-by: John Fastabend <john.fastabend@xxxxxxxxx>

Reviewed-by: Cong Wang <cong.wang@xxxxxxxxxxxxx>

Thanks for the update.