Index: linux_misc.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/linux/linux_misc.c,v
retrieving revision 1.77.2.3
retrieving revision 1.77.2.4
diff -u -r1.77.2.3 -r1.77.2.4
--- linux_misc.c	2000/07/20 05:31:56	1.77.2.3
+++ linux_misc.c	2000/07/30 05:36:11	1.77.2.4
@@ -954,6 +954,8 @@
 	tv[1].tv_usec = 0;
 	/* so that utimes can copyin */
 	tvp = (struct timeval *)stackgap_alloc(&sg, sizeof(tv));
+	if (tvp == NULL)
+		return (ENAMETOOLONG);
 	if ((error = copyout(tv, tvp, sizeof(tv))))
 	    return error;
 	bsdutimes.tptr = tvp;
Index: linux_util.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/linux/linux_util.c,v
retrieving revision 1.9.2.1
retrieving revision 1.9.2.2
diff -u -r1.9.2.1 -r1.9.2.2
--- linux_util.c	2000/07/07 01:23:45	1.9.2.1
+++ linux_util.c	2000/07/30 05:36:11	1.9.2.2
@@ -162,7 +162,10 @@
 	else {
 		sz = &ptr[len] - buf;
 		*pbuf = stackgap_alloc(sgp, sz + 1);
-		error = copyout(buf, *pbuf, sz);
+		if (*pbuf != NULL)
+			error = copyout(buf, *pbuf, sz);
+		else
+			error = ENAMETOOLONG;
 		free(buf, M_TEMP);
 	}
 
Index: linux_util.h
===================================================================
RCS file: /home/ncvs/src/sys/i386/linux/linux_util.h,v
retrieving revision 1.10
retrieving revision 1.10.2.1
diff -u -r1.10 -r1.10.2.1
--- linux_util.h	1999/12/04 11:10:22	1.10
+++ linux_util.h	2000/07/30 05:36:11	1.10.2.1
@@ -56,29 +56,27 @@
 static __inline caddr_t stackgap_init(void);
 static __inline void *stackgap_alloc(caddr_t *, size_t);
 
+#define szsigcode (*(curproc->p_sysent->sv_szsigcode))
+
 static __inline caddr_t
 stackgap_init()
 {
-#define szsigcode (*(curproc->p_sysent->sv_szsigcode))
 	return (caddr_t)(PS_STRINGS - szsigcode - SPARE_USRSPACE);
 }
 
-
 static __inline void *
 stackgap_alloc(sgp, sz)
 	caddr_t	*sgp;
 	size_t   sz;
 {
-	void	*p = (void *) *sgp;
-	*sgp += ALIGN(sz);
+	void *p = (void *) *sgp;
+
+	sz = ALIGN(sz);
+	if (*sgp + sz > (caddr_t)(PS_STRINGS - szsigcode))
+		return NULL;
+	*sgp += sz;
 	return p;
 }
-
-#ifdef DEBUG_LINUX
-#define DPRINTF(a)      printf a;
-#else
-#define DPRINTF(a)
-#endif
 
 extern const char linux_emul_path[];