Date: Sun, 18 Jun 2006 19:33:16 +0200 From: des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=) To: "Nick Borisov" <neiro21@gmail.com> Cc: freebsd-security@freebsd.org Subject: Re: memory pages nulling when releasing Message-ID: <86odwqs71f.fsf@xps.des.no> In-Reply-To: <3bcb4e3f0606180127m3c4fdb13n2b42deb881b7bdc6@mail.gmail.com> (Nick Borisov's message of "Sun, 18 Jun 2006 12:27:22 %2B0400") References: <3bcb4e3f0606180056o63424cc0g5c121443e45fa333@mail.gmail.com> <3bcb4e3f0606180127m3c4fdb13n2b42deb881b7bdc6@mail.gmail.com>
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"Nick Borisov" <neiro21@gmail.com> writes: > Could you tell me if FreeBSD supports memory page nulling when > releasing it to prevent unauthorized access to data left in the page > after it's allocated again. Processes always get zeroed pages from the kernel. This is the case for all Unices, and has been for decades. DES --=20 Dag-Erling Sm=F8rgrav - des@des.no
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