Do not access imsg->fd instead use imsg_get_fd() like the rest of vmd.

-- 
:wq Claudio

Index: vmm.c
===================================================================
RCS file: /cvs/src/usr.sbin/vmd/vmm.c,v
diff -u -p -r1.123 vmm.c
--- vmm.c	26 Sep 2024 01:45:13 -0000	1.123
+++ vmm.c	22 Oct 2024 14:43:07 -0000
@@ -318,7 +318,7 @@ vmm_dispatch_parent(int fd, struct privs
 	case IMSG_VMDOP_RECEIVE_PSP_FD:
 		if (env->vmd_psp_fd > -1)
 			fatalx("already received psp fd");
-		env->vmd_psp_fd = imsg->fd;
+		env->vmd_psp_fd = imsg_get_fd(imsg);
 		break;
 	default:
 		return (-1);