From: deraadt <deraadt@openbsd.org>
Date: Mon, 8 Aug 2016 17:15:51 +0000 (+0000)
Subject: W^X violations are only permitted for binaries marked "wxneeded" on
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=1317a5dd6b8baf9323cd8fe61e2506c37e827054;p=openbsd

W^X violations are only permitted for binaries marked "wxneeded" on
"wxallowed" filesystems.  mmap(2) & mprotect(2) now return ENOTSUP.
(To diagnose buggy programs, consider using sysctl kern.wxabort=1 and
looking at the coredumps)
ok kettenis tedu naddy
---

diff --git a/sys/uvm/uvm_mmap.c b/sys/uvm/uvm_mmap.c
index 242826a1061..81cc0b513d4 100644
--- a/sys/uvm/uvm_mmap.c
+++ b/sys/uvm/uvm_mmap.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_mmap.c,v 1.137 2016/07/13 17:52:37 kettenis Exp $	*/
+/*	$OpenBSD: uvm_mmap.c,v 1.138 2016/08/08 17:15:51 deraadt Exp $	*/
 /*	$NetBSD: uvm_mmap.c,v 1.49 2001/02/18 21:19:08 chs Exp $	*/
 
 /*
@@ -334,7 +334,7 @@ uvm_wxcheck(struct proc *p, char *call)
 		setsigvec(p, SIGABRT, &sa);
 		psignal(p, SIGABRT);
 	}
-	return (0);		/* ENOTSUP later */
+	return (ENOTSUP);
 }
 
 /*