Date: Tue, 13 Apr 2004 20:43:42 -0700 From: "David G. Lawrence" <dg@dglawrence.com> To: "Mark W. Krentel" <krentel@dreamscape.com> Cc: freebsd-bugs@FreeBSD.org Subject: Re: kern/64573: mmap with PROT_NONE, but still could be read Message-ID: <20040414034342.GA2439@nexus.dglawrence.com> In-Reply-To: <200404140140.i3E1eKh6099415@freefall.freebsd.org> References: <200404140140.i3E1eKh6099415@freefall.freebsd.org>
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> First, there is a much simpler program to reproduce the bug. This is > from 5.2-current as of April 6, 2004. > > /* > * Test mmap() and PROT_NONE. The first printf() should fail with seg > * fault or bus error because the segment has protection PROT_NONE, > * but actually, it runs ok. > */ Why would anyone want to mmap a file with PROT_NONE? -DG David G. Lawrence President Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500 TeraSolutions, Inc. - http://www.terasolutions.com - (888) 346 7175 The FreeBSD Project - http://www.freebsd.org Pave the road of life with opportunities.
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