From: "H. Peter Anvin" <hpa@zytor.com>
To: Thomas Garnier <thgarnie@google.com>,
Andy Lutomirski <luto@amacapital.net>
Cc: "Martin Schwidefsky" <schwidefsky@de.ibm.com>,
"Heiko Carstens" <heiko.carstens@de.ibm.com>,
"Dave Hansen" <dave.hansen@intel.com>,
"David Howells" <dhowells@redhat.com>,
"Al Viro" <viro@zeniv.linux.org.uk>,
"Arnd Bergmann" <arnd@arndb.de>,
"René Nyffenegger" <mail@renenyffenegger.ch>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
"Ingo Molnar" <mingo@kernel.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Oleg Nesterov" <oleg@redhat.com>,
"Pavel Tikhomirov" <ptikhomirov@virtuozzo.com>,
"Stephen Smalley" <sds@tycho.nsa.gov>,
"Ingo Molnar" <mingo@redhat.com>,
"Andy Lutomirski" <luto@kernel.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Rik van Riel" <riel@redhat.com>,
"Kees Cook" <keescook@chromium.org>,
"Josh Poimboeuf" <jpoimboe@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Brian Gerst" <brgerst@gmail.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
"Christian Borntraeger" <borntraeger@de.ibm.com>,
"Russell King" <linux@armlinux.org.uk>,
"Vladimir Murzin" <vladimir.murzin@arm.com>,
"Will Deacon" <will.deacon@arm.com>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Mark Rutland" <mark.rutland@arm.com>,
"James Morse" <james.morse@arm.com>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Linux API" <linux-api@vger.kernel.org>,
"X86 ML" <x86@kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"kernel-hardening@lists.openwall.com"
<kernel-hardening@lists.openwall.com>
Subject: Re: [PATCH v4 1/4] syscalls: Restore address limit after a syscall
Date: Wed, 22 Mar 2017 13:54:40 -0700 [thread overview]
Message-ID: <f0cf8766-4ee9-5386-5454-2301f429464c@zytor.com> (raw)
In-Reply-To: <CAJcbSZGLAXmE_mFZMAZgioWExzm3A4vXBKLGJ7DZNAbJOcH8Zw@mail.gmail.com>
On 03/22/17 13:49, Thomas Garnier wrote:
>
> We can default to BUGging. I think my approach was avoiding doing a
> BUG_ON just to avoid breaking people.
>
Breaking on a potentially-exploitable bug is a feature.
-hpa
next prev parent reply other threads:[~2017-03-22 21:17 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-22 20:38 Thomas Garnier
2017-03-22 20:38 ` [PATCH v4 2/4] x86/syscalls: Specific usage of verify_pre_usermode_state Thomas Garnier
2017-03-22 20:38 ` [PATCH v4 3/4] arm/syscalls: " Thomas Garnier
2017-03-22 20:38 ` [PATCH v4 4/4] arm64/syscalls: " Thomas Garnier
2017-03-22 20:44 ` [PATCH v4 1/4] syscalls: Restore address limit after a syscall Andy Lutomirski
2017-03-22 20:49 ` Thomas Garnier
2017-03-22 20:54 ` H. Peter Anvin [this message]
2017-03-23 15:14 ` Thomas Garnier
2017-03-23 15:32 ` Borislav Petkov
2017-03-23 15:40 ` Thomas Garnier
2017-03-22 20:54 ` H. Peter Anvin
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