From: Julian Seward <jseward@acm.org>
Date: Mon, 13 Feb 2006 18:16:41 +0000 (+0000)
Subject: Fix boundary conditions relating to stack permissions (see r5645).
X-Git-Tag: svn/VALGRIND_3_2_0~268
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5927c3aed773c2f0bbd766f5b2fdb07ff254f88;p=thirdparty%2Fvalgrind.git

Fix boundary conditions relating to stack permissions (see r5645).


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5646
---

diff --git a/coregrind/m_main.c b/coregrind/m_main.c
index 4925372fd4..9faf0c5540 100644
--- a/coregrind/m_main.c
+++ b/coregrind/m_main.c
@@ -2478,7 +2478,7 @@ Int main(Int argc, HChar **argv, HChar **envp)
 	required (VG_STACK_REDZONE_SZB).  setup_client_stack() will
 	have allocated an extra page if a red zone is required, to be on 
         the safe side. */
-     vg_assert(initial_client_SP-1 - VG_STACK_REDZONE_SZB > seg->start);
+     vg_assert(initial_client_SP - VG_STACK_REDZONE_SZB >= seg->start);
      VG_TRACK( die_mem_stack, seg->start, initial_client_SP 
                                           - VG_STACK_REDZONE_SZB - seg->start );
      VG_(debugLog)(2, "main", "mark stack inaccessible %010lx-%010lx\n",