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Use PROT_MPROTECT() (which would have been better had it been called

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PROT_MAXPROTECT or PROT_ALLOWPROTECT or something) on the mmap() call
which specifies PROT_NONE, and which we later want to change to PROT_READ,
otherwise when PAX is enabled, the mprotect() will fail.
This commit is contained in:
kre 2017-09-01 16:27:02 +00:00
parent 2ca785ae43
commit 70238ca755
1 changed files with 4 additions and 3 deletions
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7
tests/lib/libc/sys/t_mincore.c
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@ -1,4 +1,4 @@
/* $NetBSD: t_mincore.c,v 1.11 2017/05/23 16:01:46 christos Exp $ */
/* $NetBSD: t_mincore.c,v 1.12 2017/09/01 16:27:02 kre Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
@ -59,7 +59,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_mincore.c,v 1.11 2017/05/23 16:01:46 christos Exp $");
__RCSID("$NetBSD: t_mincore.c,v 1.12 2017/09/01 16:27:02 kre Exp $");
#include <sys/mman.h>
#include <sys/stat.h>
@ -231,7 +231,8 @@ ATF_TC_BODY(mincore_resid, tc)
resident, npgs);
addr2 = mmap(NULL, npgs * page, PROT_READ, MAP_ANON, -1, (off_t)0);
addr3 = mmap(NULL, npgs * page, PROT_NONE, MAP_ANON, -1, (off_t)0);
addr3 = mmap(NULL, npgs * page, PROT_MPROTECT(PROT_READ) | PROT_NONE,
MAP_ANON, -1, (off_t)0);
if (addr2 == MAP_FAILED || addr3 == MAP_FAILED)
atf_tc_skip("could not mmap more anonymous test pages with "