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Groups > linux.kernel > #1557847
| Path | csiph.com!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Pavel Machek <pavel@ucw.cz> |
| Newsgroups | linux.kernel |
| Subject | Re: [Question] New mmap64 syscall? |
| Date | Thu, 12 Jan 2017 23:00:02 +0100 |
| Message-ID | <sYVzA-GY-9@gated-at.bofh.it> (permalink) |
| References | <sLvtf-7oy-21@gated-at.bofh.it> <sLKsh-BZ-11@gated-at.bofh.it> <sM9h5-7Vv-17@gated-at.bofh.it> <sM9h5-7Vv-15@gated-at.bofh.it> <sVEvh-3xp-71@gated-at.bofh.it> <sYQgy-66R-27@gated-at.bofh.it> |
| X-Original-To | Florian Weimer <fweimer@redhat.com> |
| MIME-Version | 1.0 |
| Content-Type | multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="fUYQa+Pmc3FrFX/N" |
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| User-Agent | Mutt/1.5.23 (2014-03-12) |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 41 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | Yury Norov <ynorov@caviumnetworks.com>, libc-alpha@sourceware.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Catalin Marinas <catalin.marinas@arm.com>, szabolcs.nagy@arm.com, heiko.carstens@de.ibm.com, cmetcalf@ezchip.com, philipp.tomsich@theobroma-systems.com, joseph@codesourcery.com, zhouchengming1@huawei.com, Prasun.Kapoor@caviumnetworks.com, agraf@suse.de, geert@linux-m68k.org, kilobyte@angband.pl, manuel.montezelo@gmail.com, arnd@arndb.de, pinskia@gmail.com, linyongting@huawei.com, klimov.linux@gmail.com, broonie@kernel.org, bamvor.zhangjian@huawei.com, linux-arm-kernel@lists.infradead.org, maxim.kuvyrkov@linaro.org, Nathan_Lynch@mentor.com, schwidefsky@de.ibm.com, davem@davemloft.net, christoph.muellner@theobroma-systems.com |
| X-Original-Date | Thu, 12 Jan 2017 22:51:28 +0100 |
| X-Original-Message-ID | <20170112215128.GA14063@amd> |
| X-Original-References | <20161206185440.GA4654@yury-N73SV> <f544bcc3-8aae-1bd0-b744-9964fc038a51@redhat.com> <20161207154811.GA15248@yury-N73SV> <14981df2-b120-17c3-a5a8-5cbbd2008c4f@redhat.com> <20170103205437.GA22548@amd> <59af3a6f-f30c-46a5-2d0b-6a7e36668e6b@redhat.com> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1557847 |
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On Thu 2017-01-12 17:13:25, Florian Weimer wrote: > On 01/03/2017 09:54 PM, Pavel Machek wrote: > >...actually, with strace and batched interface, it will be impossible > >to see what is going on because of races. So I'm not sure if I like > >the batched interface at all... > > I'm not sure if I understand this problem. > > ioctl, fcntl, most socket system calls, even open all have this problem as > well, right? Yes, ioctl() and similar are problematic. Still it is possible to implement secure sandbox using ptrace. Dealing with indirect mmap() would difficult AFAICT. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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Re: [Question] New mmap64 syscall? Pavel Machek <pavel@ucw.cz> - 2017-01-03 22:10 +0100
Re: [Question] New mmap64 syscall? Florian Weimer <fweimer@redhat.com> - 2017-01-12 17:20 +0100
Re: [Question] New mmap64 syscall? Pavel Machek <pavel@ucw.cz> - 2017-01-12 23:00 +0100
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