slirp: Properly initialize pollfds_idx of new sockets

Otherwise we may start processing sockets in slirp_pollfds_poll that
were created past slirp_pollfds_fill.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/socket.c b/socket.c
index 9f7c1a6..8786c6f 100644
--- a/socket.c
+++ b/socket.c
@@ -46,6 +46,7 @@ struct socket *socreate(Slirp *slirp)
         so->so_state = SS_NOFDREF;
         so->s = -1;
         so->slirp = slirp;
+        so->pollfds_idx = -1;
     }
     return (so);
 }