Index: src/sys/i386/linux/linux_machdep.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/linux/linux_machdep.c,v
retrieving revision 1.76
diff -u -r1.76 linux_machdep.c
--- src/sys/i386/linux/linux_machdep.c	5 Jun 2007 00:00:53 -0000	1.76
+++ src/sys/i386/linux/linux_machdep.c	10 Jun 2007 01:54:10 -0000
@@ -683,7 +683,7 @@
 	 */
 	bsd_args.prot = linux_args->prot;
 	if (bsd_args.prot & (PROT_READ | PROT_WRITE | PROT_EXEC))
-		bsd_args.prot |= PROT_READ | PROT_EXEC;
+		bsd_args.prot |= PROT_READ;
 
 	/* Linux does not check file descriptor when MAP_ANONYMOUS is set. */
 	bsd_args.fd = (bsd_args.flags & MAP_ANON) ? -1 : linux_args->fd;
@@ -805,7 +805,7 @@
 	bsd_args.len = uap->len;
 	bsd_args.prot = uap->prot;
 	if (bsd_args.prot & (PROT_READ | PROT_WRITE | PROT_EXEC))
-		bsd_args.prot |= PROT_READ | PROT_EXEC;
+		bsd_args.prot |= PROT_READ;
 	return (mprotect(td, &bsd_args));
 }
 
Index: src/sys/amd64/linux32/linux32_machdep.c
===================================================================
RCS file: /home/ncvs/src/sys/amd64/linux32/linux32_machdep.c,v
retrieving revision 1.44
diff -u -r1.44 linux32_machdep.c
--- src/sys/amd64/linux32/linux32_machdep.c	5 Jun 2007 00:00:50 -0000	1.44
+++ src/sys/amd64/linux32/linux32_machdep.c	10 Jun 2007 01:54:10 -0000
@@ -832,7 +832,7 @@
 	 */
 	bsd_args.prot = linux_args->prot;
 	if (bsd_args.prot & (PROT_READ | PROT_WRITE | PROT_EXEC))
-		bsd_args.prot |= PROT_READ | PROT_EXEC;
+		bsd_args.prot |= PROT_READ;
 
 	/* Linux does not check file descriptor when MAP_ANONYMOUS is set. */
 	bsd_args.fd = (bsd_args.flags & MAP_ANON) ? -1 : linux_args->fd;
@@ -954,7 +954,7 @@
 	bsd_args.len = uap->len;
 	bsd_args.prot = uap->prot;
 	if (bsd_args.prot & (PROT_READ | PROT_WRITE | PROT_EXEC))
-		bsd_args.prot |= PROT_READ | PROT_EXEC;
+		bsd_args.prot |= PROT_READ;
 	return (mprotect(td, &bsd_args));
 }