Re: [PATCH v9 08/10] open: openat2(2) syscall
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- To: Arnd Bergmann <arnd@xxxxxxxx>
- Subject: Re: [PATCH v9 08/10] open: openat2(2) syscall
- From: "Dmitry V. Levin" <ldv@xxxxxxxxxxxx>
- Date: Fri, 19 Jul 2019 05:12:18 +0300
- Cc: Aleksa Sarai <cyphar@xxxxxxxxxx>, Al Viro <viro@xxxxxxxxxxxxxxxxxx>, Jeff Layton <jlayton@xxxxxxxxxx>, "J. Bruce Fields" <bfields@xxxxxxxxxxxx>, David Howells <dhowells@xxxxxxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>, Christian Brauner <christian@xxxxxxxxxx>, Eric Biederman <ebiederm@xxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, Tycho Andersen <tycho@xxxxxxxx>, David Drysdale <drysdale@xxxxxxxxxx>, Chanho Min <chanho.min@xxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, Aleksa Sarai <asarai@xxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, containers@xxxxxxxxxxxxxxxxxxxxxxxxxx, alpha <linux-alpha@xxxxxxxxxxxxxxx>, Linux API <linux-api@xxxxxxxxxxxxxxx>, linux-arch <linux-arch@xxxxxxxxxxxxxxx>, Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, Linux FS-devel Mailing List <linux-fsdevel@xxxxxxxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@xxxxxxxxxxxxxxx>, linux-m68k <linux-m68k@xxxxxxxxxxxxxxx>, linux-mips@xxxxxxxxxxxxxxx, Parisc List <linux-parisc@xxxxxxxxxxxxxxx>, linuxppc-dev <linuxppc-dev@xxxxxxxxxxxxxxxx>, linux-s390 <linux-s390@xxxxxxxxxxxxxxx>, Linux-sh list <linux-sh@xxxxxxxxxxxxxxx>, linux-xtensa@xxxxxxxxxxxxxxxx, sparclinux <sparclinux@xxxxxxxxxxxxxxx>
- In-reply-to: <CAK8P3a3MiYK4bJiA3G_m5H-TpfN5__--b+=szsJBhG7_it+NQg@mail.gmail.com>
- References: <20190706145737.5299-1-cyphar@cyphar.com> <20190706145737.5299-9-cyphar@cyphar.com> <CAK8P3a33rGhPDFfRBAQyLTMG_WoEgX_toDgWR2O7rSwxKsZG+w@mail.gmail.com> <20190718161231.xcno272nvqpln3wj@yavin> <CAK8P3a3MiYK4bJiA3G_m5H-TpfN5__--b+=szsJBhG7_it+NQg@mail.gmail.com>
On Thu, Jul 18, 2019 at 11:29:50PM +0200, Arnd Bergmann wrote:
[...]
> 5. you get the same problem with seccomp and strace that
> clone3() has -- these and others only track the register
> arguments by default.
Just for the record, this is definitely not the case for strace:
it decodes arrays, structures, netlink messages, and so on by default.
--
ldv
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