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Message-ID: <CAJcbSZH7xoBGsD7A4odpYrWopziWrc8sifAUiUgQmVnYkxwo4w@mail.gmail.com>
Date: Thu, 9 Mar 2017 07:53:54 -0800
From: Thomas Garnier <thgarnie@...gle.com>
To: Christian Borntraeger <borntraeger@...ibm.com>
Cc: David Howells <dhowells@...hat.com>, Dave Hansen <dave.hansen@...el.com>,
Arnd Bergmann <arnd@...db.de>, Al Viro <viro@...iv.linux.org.uk>,
René Nyffenegger <mail@...enyffenegger.ch>,
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Kernel Hardening <kernel-hardening@...ts.openwall.com>,
Heiko Carstens <heiko.carstens@...ibm.com>, Martin Schwidefsky <schwidefsky@...ibm.com>,
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Subject: Re: [PATCH v2 1/4] syscalls: Restore address limit after a syscall
> On Thu, Mar 9, 2017 at 4:32 AM, Christian Borntraeger <borntraeger@...ibm.com> wrote:
> Can you please disable that for s390? (e.g. by setting
> CONFIG_ARCH_NO_SYSCALL_VERIFY_PRE_USERMODE_STATE for s390)
> We have a separate address space for kernel/user so the logic will
> be slightly different and is already handled in
>
> commit b5a882fcf146c87cb6b67c6df353e1c042b8773d
> Author: Heiko Carstens <heiko.carstens@...ibm.com>
> Date: Fri Feb 17 08:13:28 2017 +0100
>
> s390: restore address space when returning to user space
>
No problem, I will add it on the next iteration of this change.
--
Thomas
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