[dpdk-dev] [dpdk-stable] [PATCH] pcap: fix memory leak in jumbo frames

[Yuanhan Liu]

On Tue, Sep 20, 2016 at 02:16:48PM +0300, Dror Birkman wrote:
> Cool!
> Adding fixline:

You might want to send a v2: the following diff is malformed.

> 
> If rte_pktmbuf_alloc() fails on any segment that is not the initial
> segment, previously allocated mbufs are not freed.
> 
> Fixes: 6db141c91e1f ("pcap: support jumbo frames")

And put a line "Cc: <stable at dpdk.org>" just before your Signed-off-by.

	--yliu
> 
> Signed-off-by: Dror Birkman <dror.birkman at lightcyber.com>
> ---
>  drivers/net/pcap/rte_eth_pcap.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_
> pcap.c
> index b7a3b03..db19a66 100644
> --- a/drivers/net/pcap/rte_eth_pcap.c
> +++ b/drivers/net/pcap/rte_eth_pcap.c
> @@ -229,8 +229,10 @@ eth_pcap_rx(void *queue,
>         if (unlikely(eth_pcap_rx_jumbo(pcap_q->mb_pool,
>               mbuf,
>               packet,
> -             header.caplen) == -1))
> +             header.caplen) == -1)) {
> +       rte_pktmbuf_free(mbuf);
>         break;
> +       }
>         }
> 
>         mbuf->pkt_len = (uint16_t)header.caplen;
> --
> 2.3.0
> 
> 
> 
> On Tue, Sep 20, 2016 at 1:58 PM, Yuanhan Liu <yuanhan.liu at linux.intel.com>
> wrote:
> 
> > On Tue, Sep 20, 2016 at 01:39:23PM +0300, Dror Birkman wrote:
> > > If rte_pktmbuf_alloc() fails on any segment that is not the initial
> > > segment, previously allocated mbufs are not freed.
> >
> > You should put a "fixline" here.
> >
> > Besides that, I think it's a good candidate for stable branch. Thus,
> > stable at dpdk.org cc'ed.
> >
> >         --yliu
> >