Messages in this thread | | | Date | Mon, 13 Jul 2020 10:28:39 +0100 | From | Stefan Hajnoczi <> | Subject | Re: [PATCH] vsock/virtio: annotate 'the_virtio_vsock' RCU pointer |
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On Fri, Jul 10, 2020 at 02:12:43PM +0200, Stefano Garzarella wrote: > Commit 0deab087b16a ("vsock/virtio: use RCU to avoid use-after-free > on the_virtio_vsock") starts to use RCU to protect 'the_virtio_vsock' > pointer, but we forgot to annotate it. > > This patch adds the annotation to fix the following sparse errors: > > net/vmw_vsock/virtio_transport.c:73:17: error: incompatible types in comparison expression (different address spaces): > net/vmw_vsock/virtio_transport.c:73:17: struct virtio_vsock [noderef] __rcu * > net/vmw_vsock/virtio_transport.c:73:17: struct virtio_vsock * > net/vmw_vsock/virtio_transport.c:171:17: error: incompatible types in comparison expression (different address spaces): > net/vmw_vsock/virtio_transport.c:171:17: struct virtio_vsock [noderef] __rcu * > net/vmw_vsock/virtio_transport.c:171:17: struct virtio_vsock * > net/vmw_vsock/virtio_transport.c:207:17: error: incompatible types in comparison expression (different address spaces): > net/vmw_vsock/virtio_transport.c:207:17: struct virtio_vsock [noderef] __rcu * > net/vmw_vsock/virtio_transport.c:207:17: struct virtio_vsock * > net/vmw_vsock/virtio_transport.c:561:13: error: incompatible types in comparison expression (different address spaces): > net/vmw_vsock/virtio_transport.c:561:13: struct virtio_vsock [noderef] __rcu * > net/vmw_vsock/virtio_transport.c:561:13: struct virtio_vsock * > net/vmw_vsock/virtio_transport.c:612:9: error: incompatible types in comparison expression (different address spaces): > net/vmw_vsock/virtio_transport.c:612:9: struct virtio_vsock [noderef] __rcu * > net/vmw_vsock/virtio_transport.c:612:9: struct virtio_vsock * > net/vmw_vsock/virtio_transport.c:631:9: error: incompatible types in comparison expression (different address spaces): > net/vmw_vsock/virtio_transport.c:631:9: struct virtio_vsock [noderef] __rcu * > net/vmw_vsock/virtio_transport.c:631:9: struct virtio_vsock * > > Fixes: 0deab087b16a ("vsock/virtio: use RCU to avoid use-after-free on the_virtio_vsock") > Reported-by: Michael S. Tsirkin <mst@redhat.com> > Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> > --- > net/vmw_vsock/virtio_transport.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> [unhandled content-type:application/pgp-signature] | |