Date: Wed, 15 Mar 2017 23:13:26 +0300 From: Andrey Chernov <ache@freebsd.org> To: Steven Chamberlain <steven@pyro.eu.org>, freebsd-security@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: arc4random weakness Message-ID: <5160183b-9778-59aa-6cf9-118014a588eb@freebsd.org> In-Reply-To: <20170315130615.GC25448@pyro.eu.org> References: <CAD2Ti28acbW%2BpGQR5UihECWvg9WduGmVzkVFug_2ZWRF2zyTBw@mail.gmail.com> <20170313220639.GB65190@pyro.eu.org> <20170315130615.GC25448@pyro.eu.org>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --IW8vRQi5Oug3kvNAmDSvknaK7slsa26E3 Content-Type: multipart/mixed; boundary="vgsQt28TqTXLWtKeuESqb2p3dEqopMkgU"; protected-headers="v1" From: Andrey Chernov <ache@freebsd.org> To: Steven Chamberlain <steven@pyro.eu.org>, freebsd-security@freebsd.org, freebsd-hackers@freebsd.org Message-ID: <5160183b-9778-59aa-6cf9-118014a588eb@freebsd.org> Subject: Re: arc4random weakness References: <CAD2Ti28acbW+pGQR5UihECWvg9WduGmVzkVFug_2ZWRF2zyTBw@mail.gmail.com> <20170313220639.GB65190@pyro.eu.org> <20170315130615.GC25448@pyro.eu.org> In-Reply-To: <20170315130615.GC25448@pyro.eu.org> --vgsQt28TqTXLWtKeuESqb2p3dEqopMkgU Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 15.03.2017 16:06, Steven Chamberlain wrote: > Also it is great to see INHERIT_ZERO was added to mmap(2)! It is not so great. For a program which forks very often zeroing even one page will be slowdown. It will be better and faster to implement it as fork syscall wrapper setting single variable, as it already done for threaded lib. --vgsQt28TqTXLWtKeuESqb2p3dEqopMkgU-- --IW8vRQi5Oug3kvNAmDSvknaK7slsa26E3 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJYyaBpAAoJEKUckv0MjfbK4MMH/j2D3lV/qC4y/7Z/zHkVCOkY t9MQLZ/9sMuWYzKyKAiIsv6FqdEHnWyYxA52aoCh9DptMMaOb+tzd6I0OnNY5FOY bxU+E6olYhaDu4Hj3+uxLvvOMYF0fim+LWJboqE18/zyG4/GbVOuTU3E2v7sTPZZ o6IrEKL/yqkuOkGznh662T6OiVDzS3SHjL7ewtgfNLhLhh8yA7zRQ0scQD7TjMEe tzt059vvL6rDxcvQsMWPgUjMUzfPqsElsbjUQkXVo+wQCi7ozS6jgOTkdXaZZ59+ 8+bJPKOj8WTL096A2HsnKggSYUSTlI6sfqvo2jhwt54KTBUMBgHupjj685txbEs= =MjFb -----END PGP SIGNATURE----- --IW8vRQi5Oug3kvNAmDSvknaK7slsa26E3--
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