From: "Libin (Huawei)" <huawei.libin@huawei.com>
To: Andy Lutomirski <luto@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Hanjun Guo <guohanjun@huawei.com>
Subject: Re: [PATCH v2] prctl: fix compat handling for prctl
Date: Thu, 19 Apr 2018 14:03:55 +0800 [thread overview]
Message-ID: <130bb5d0-e6a8-932b-3f56-ef021f10a8ba@huawei.com> (raw)
In-Reply-To: <CALCETrUmFfoWE55Nrkiq5cuvPw5oPFJKOg04ky-dJsDVsdSmbg@mail.gmail.com>
在 2018/4/19 10:25, Andy Lutomirski 写道:
>> On Apr 18, 2018, at 9:06 PM, Li Bin <huawei.libin@huawei.com> wrote:
>>
>> The member auxv in prctl_mm_map structure which be shared with
>> userspace is pointer type, but the kernel supporting COMPAT didn't
>> handle it. This patch fix the compat handling for prctl syscall.
>
> I would propose an alternative fix: change the type to u64. As far as
But we also need to modify the sys/prctl.h in Glibc, right?
> I know, this thing is only used by CRIU, and CRIU doesn’t work (AFAIK)
> on native 32-bit anyway. Do you know of some reason that this
> wouldn't work?
>
> .
>
next prev parent reply other threads:[~2018-04-19 6:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-19 1:06 Li Bin
2018-04-19 1:35 ` Andy Lutomirski
2018-04-19 2:25 ` Andy Lutomirski
2018-04-19 6:03 ` Libin (Huawei) [this message]
2018-04-26 21:13 ` Dmitry Safonov
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