X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/fe75e5033cd83f2ddc537457d96625044d168433..89e97516fedf1d0a7fe9c569bb569fa7ea872afa:/unix/uxser.c

diff --git a/unix/uxser.c b/unix/uxser.c
index d6471084..08f21575 100644
--- a/unix/uxser.c
+++ b/unix/uxser.c
@@ -257,6 +257,8 @@ static const char *serial_init(void *frontend_handle, void **backend_handle,
     if (serial->fd < 0)
 	return "Unable to open serial port";
 
+    fcntl(serial->fd, F_SETFD, FD_CLOEXEC);
+
     err = serial_configure(serial, cfg);
     if (err)
 	return err;