> -----Original Message-----
> From: Ma, WenwuX <wenwux...@intel.com>
> Sent: Saturday, September 25, 2021 1:23 AM
> To: dev@dpdk.org
> Cc: maxime.coque...@redhat.com; Xia, Chenbo <chenbo....@intel.com>; Jiang,
> Cheng1 <cheng1.ji...@intel.com>; Hu, Jiayu <jiayu...@intel.com>; Yang, YvonneX
> <yvonnex.y...@intel.com>; Ma, WenwuX <wenwux...@intel.com>; sta...@dpdk.org
> Subject: [PATCH v2] examples/vhost: fix use-after-free on drain vhost
>
> When a vdev is removed in destroy_device function,
> the corresponding vhost TX buffer will also be freed,
> but the vhost TX buffer may still be used in the
> drain_vhost function, which will cause an error of
> heap-use-after-free. Therefore, before accessing
> vhost TX buffer, we need to check whether the vdev
> has been removed, if so, let's skip this vdev.
>
> Fixes: a68ba8e0a6b6 ("examples/vhost: refactor vhost data path")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Wenwu Ma <wenwux...@intel.com>
> ---
Reviewed-by: Chenbo Xia <chenbo....@intel.com>
