On 3/10/22 13:50, David Marchand wrote:
Even if unlikely, a buggy vhost-user master might attach fds to inflight messages. Add checks like for other types of vhost-user messages. Fixes: d87f1a1cb7b6 ("vhost: support inflight info sharing") Cc: sta...@dpdk.org Signed-off-by: David Marchand <david.march...@redhat.com> --- lib/vhost/vhost_user.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/vhost/vhost_user.c b/lib/vhost/vhost_user.c index 1ec4357bee..1d390677fa 100644 --- a/lib/vhost/vhost_user.c +++ b/lib/vhost/vhost_user.c @@ -1602,6 +1602,9 @@ vhost_user_get_inflight_fd(struct virtio_net **pdev, int numa_node = SOCKET_ID_ANY; void *addr;+ if (validate_msg_fds(dev, ctx, 0) != 0)+ return RTE_VHOST_MSG_RESULT_ERR; + if (ctx->msg.size != sizeof(ctx->msg.payload.inflight)) { VHOST_LOG_CONFIG(ERR, "(%s) invalid get_inflight_fd message size is %d\n", dev->ifname, ctx->msg.size); @@ -1699,6 +1702,9 @@ vhost_user_set_inflight_fd(struct virtio_net **pdev, int fd, i; int numa_node = SOCKET_ID_ANY;+ if (validate_msg_fds(dev, ctx, 1) != 0)+ return RTE_VHOST_MSG_RESULT_ERR; + fd = ctx->fds[0]; if (ctx->msg.size != sizeof(ctx->msg.payload.inflight) || fd < 0) { VHOST_LOG_CONFIG(ERR, "(%s) invalid set_inflight_fd message size is %d,fd is %d\n",
Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com> Thanks, Maxime
