vhost: fix device leak on connection add failure
Checks
Commit Message
Need to destroy allocated device if application fails to
add new connection or we have fdset failure.
Fixes: acbff5c67ea7 ("vhost: fix crash when exceeding file descriptors")
Fixes: efba12a78ddf ("vhost: add user callbacks for socket open/close")
Cc: stable@dpdk.org
Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
---
lib/librte_vhost/socket.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
Comments
On Thu, Apr 11, 2019 at 12:23 PM Ilya Maximets <i.maximets@samsung.com>
wrote:
> Need to destroy allocated device if application fails to
> add new connection or we have fdset failure.
>
> Fixes: acbff5c67ea7 ("vhost: fix crash when exceeding file descriptors")
> Fixes: efba12a78ddf ("vhost: add user callbacks for socket open/close")
> Cc: stable@dpdk.org
>
> Reported-by: David Marchand <david.marchand@redhat.com>
> Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
> ---
> lib/librte_vhost/socket.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c
> index 43f091d10..c34668004 100644
> --- a/lib/librte_vhost/socket.c
> +++ b/lib/librte_vhost/socket.c
> @@ -240,7 +240,7 @@ vhost_user_add_connection(int fd, struct
> vhost_user_socket *vsocket)
> RTE_LOG(ERR, VHOST_CONFIG,
> "failed to add vhost user connection with
> fd %d\n",
> fd);
> - goto err;
> + goto err_cleanup;
> }
> }
>
> @@ -257,7 +257,7 @@ vhost_user_add_connection(int fd, struct
> vhost_user_socket *vsocket)
> if (vsocket->notify_ops->destroy_connection)
> vsocket->notify_ops->destroy_connection(conn->vid);
>
> - goto err;
> + goto err_cleanup;
> }
>
> pthread_mutex_lock(&vsocket->conn_mutex);
> @@ -267,6 +267,8 @@ vhost_user_add_connection(int fd, struct
> vhost_user_socket *vsocket)
> fdset_pipe_notify(&vhost_user.fdset);
> return;
>
> +err_cleanup:
> + vhost_destroy_device(vid);
> err:
> free(conn);
> close(fd);
> --
> 2.17.1
>
Thanks Ilya.
Reviewed-by: David Marchand <david.marchand@redhat.com>
On Thu, Apr 11, 2019 at 01:23:06PM +0300, Ilya Maximets wrote:
>Need to destroy allocated device if application fails to
>add new connection or we have fdset failure.
>
>Fixes: acbff5c67ea7 ("vhost: fix crash when exceeding file descriptors")
>Fixes: efba12a78ddf ("vhost: add user callbacks for socket open/close")
>Cc: stable@dpdk.org
>
>Reported-by: David Marchand <david.marchand@redhat.com>
>Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
>---
> lib/librte_vhost/socket.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
On Thu, Apr 11, 2019 at 01:23:06PM +0300, Ilya Maximets wrote:
> Need to destroy allocated device if application fails to
> add new connection or we have fdset failure.
>
> Fixes: acbff5c67ea7 ("vhost: fix crash when exceeding file descriptors")
> Fixes: efba12a78ddf ("vhost: add user callbacks for socket open/close")
> Cc: stable@dpdk.org
>
> Reported-by: David Marchand <david.marchand@redhat.com>
> Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
> ---
> lib/librte_vhost/socket.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
Reviewed-by: Tiwei Bie <tiwei.bie@intel.com>
On 4/11/19 12:23 PM, Ilya Maximets wrote:
> Need to destroy allocated device if application fails to
> add new connection or we have fdset failure.
>
> Fixes: acbff5c67ea7 ("vhost: fix crash when exceeding file descriptors")
> Fixes: efba12a78ddf ("vhost: add user callbacks for socket open/close")
> Cc:stable@dpdk.org
>
> Reported-by: David Marchand<david.marchand@redhat.com>
> Signed-off-by: Ilya Maximets<i.maximets@samsung.com>
> ---
> lib/librte_vhost/socket.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
Applied to dpdk-next-virtio/master.
Thanks,
Maxime
@@ -240,7 +240,7 @@ vhost_user_add_connection(int fd, struct vhost_user_socket *vsocket)
RTE_LOG(ERR, VHOST_CONFIG,
"failed to add vhost user connection with fd %d\n",
fd);
- goto err;
+ goto err_cleanup;
}
}
@@ -257,7 +257,7 @@ vhost_user_add_connection(int fd, struct vhost_user_socket *vsocket)
if (vsocket->notify_ops->destroy_connection)
vsocket->notify_ops->destroy_connection(conn->vid);
- goto err;
+ goto err_cleanup;
}
pthread_mutex_lock(&vsocket->conn_mutex);
@@ -267,6 +267,8 @@ vhost_user_add_connection(int fd, struct vhost_user_socket *vsocket)
fdset_pipe_notify(&vhost_user.fdset);
return;
+err_cleanup:
+ vhost_destroy_device(vid);
err:
free(conn);
close(fd);