[dpdk-dev] [PATCH] event/octeontx: fix memory corruption

Jerin Jacob jerinjacobk at gmail.com
Fri May 15 16:36:05 CEST 2020


On Fri, May 15, 2020 at 4:51 PM Harman Kalra <hkalra at marvell.com> wrote:
>
> Since PMD enqueues a single event at a time, fixing the issue by
> passing 1 rather than nb_events to avoid any out of bound access as
> reported by coverity.
>
> Coverity issue: 358447
> Fixes: 56a96aa42464 ("event/octeontx: add framework for Rx/Tx offloads")
>
> Signed-off-by: Harman Kalra <hkalra at marvell.com>

Acked-by: Jerin Jacob <jerinj at marvell.com>
Applied to dpdk-next-eventdev/master. Thanks.


> ---
>  drivers/event/octeontx/ssovf_worker.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/event/octeontx/ssovf_worker.c b/drivers/event/octeontx/ssovf_worker.c
> index d2d5eea8f..18b7926e8 100644
> --- a/drivers/event/octeontx/ssovf_worker.c
> +++ b/drivers/event/octeontx/ssovf_worker.c
> @@ -282,6 +282,7 @@ __sso_event_tx_adapter_enqueue(void *port, struct rte_event ev[],
>         struct ssows *ws = port;
>         struct octeontx_txq *txq;
>
> +       RTE_SET_USED(nb_events);
>         switch (ev->sched_type) {
>         case SSO_SYNC_ORDERED:
>                 ssows_swtag_norm(ws, ev->event, SSO_SYNC_ATOMIC);
> @@ -305,7 +306,7 @@ __sso_event_tx_adapter_enqueue(void *port, struct rte_event ev[],
>         ethdev = &rte_eth_devices[port_id];
>         txq = ethdev->data->tx_queues[queue_id];
>
> -       return __octeontx_xmit_pkts(txq, &m, nb_events, cmd, flag);
> +       return __octeontx_xmit_pkts(txq, &m, 1, cmd, flag);
>  }
>
>  #define T(name, f3, f2, f1, f0, sz, flags)                                  \
> --
> 2.18.0
>


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