From: Dave Hansen <dave.hansen@linux.intel.com>
To: Alexander Popov <alex.popov@linux.com>,
kernel-hardening@lists.openwall.com,
Kees Cook <keescook@chromium.org>,
PaX Team <pageexec@freemail.hu>,
Brad Spengler <spender@grsecurity.net>,
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Tycho Andersen <tycho@tycho.ws>,
Laura Abbott <labbott@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
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Richard Sandiford <richard.sandiford@arm.com>,
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"H . Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
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Vikas Shivappa <vikas.shivappa@linux.intel.com>,
Kyle Huey <me@kylehuey.com>,
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x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RFC v9 2/7] x86/entry: Add STACKLEAK erasing the kernel stack at the end of syscalls
Date: Mon, 5 Mar 2018 08:41:43 -0800 [thread overview]
Message-ID: <d968e58a-3abd-8e3c-cee3-00c19c1b6430@linux.intel.com> (raw)
In-Reply-To: <1520107232-14111-3-git-send-email-alex.popov@linux.com>
On 03/03/2018 12:00 PM, Alexander Popov wrote:
> Documentation/x86/x86_64/mm.txt | 2 +
> arch/Kconfig | 27 ++++++++++
> arch/x86/Kconfig | 1 +
> arch/x86/entry/entry_32.S | 88 +++++++++++++++++++++++++++++++
> arch/x86/entry/entry_64.S | 108 +++++++++++++++++++++++++++++++++++++++
> arch/x86/entry/entry_64_compat.S | 11 ++++
This is a *lot* of assembly. I wonder if you tried at all to get more
of this into C or whether you just inherited the assembly from the
original code?
next prev parent reply other threads:[~2018-03-05 16:41 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-03 20:00 [PATCH RFC v9 0/7] Introduce the STACKLEAK feature and a test for it Alexander Popov
2018-03-03 20:00 ` [PATCH RFC v9 1/7] gcc-plugins: Clean up the cgraph_create_edge* macros Alexander Popov
2018-03-03 20:00 ` [PATCH RFC v9 2/7] x86/entry: Add STACKLEAK erasing the kernel stack at the end of syscalls Alexander Popov
2018-03-05 16:41 ` Dave Hansen [this message]
2018-03-05 19:43 ` Laura Abbott
2018-03-05 19:50 ` Dave Hansen
2018-03-05 20:25 ` Peter Zijlstra
2018-03-05 21:21 ` Alexander Popov
2018-03-05 21:36 ` Kees Cook
2018-03-21 11:04 ` Alexander Popov
2018-03-21 15:33 ` Dave Hansen
2018-03-22 20:56 ` Alexander Popov
2018-03-26 17:32 ` Kees Cook
2018-03-26 17:43 ` Andy Lutomirski
2018-03-03 20:00 ` [PATCH RFC v9 3/7] gcc-plugins: Add STACKLEAK plugin for tracking the kernel stack Alexander Popov
2018-03-03 20:00 ` [PATCH RFC v9 4/7] x86/entry: Erase kernel stack in syscall_trace_enter() Alexander Popov
2018-03-05 19:40 ` Dave Hansen
2018-03-05 20:06 ` Kees Cook
2018-03-05 20:15 ` Linus Torvalds
2018-03-05 21:02 ` Alexander Popov
2018-03-05 21:02 ` Kees Cook
2018-03-05 21:40 ` Linus Torvalds
2018-03-05 22:07 ` Linus Torvalds
2018-03-06 0:56 ` Kees Cook
2018-03-06 4:30 ` Linus Torvalds
2018-03-06 17:58 ` Andy Lutomirski
2018-03-06 7:56 ` [OLD PATCH] net: recvmsg: Unconditionally zero struct sockaddr_storage " Ingo Molnar
2018-03-06 7:56 ` Ingo Molnar
2018-03-06 8:08 ` Ingo Molnar
2018-03-06 15:16 ` Daniel Micay
2018-03-06 15:28 ` Daniel Micay
2018-03-06 18:56 ` Linus Torvalds
2018-03-06 19:07 ` Peter Zijlstra
2018-03-06 19:07 ` Ard Biesheuvel
2018-03-06 19:16 ` Linus Torvalds
2018-03-06 20:42 ` Arnd Bergmann
2018-03-06 21:01 ` Linus Torvalds
2018-03-06 21:21 ` Arnd Bergmann
2018-03-06 21:29 ` Linus Torvalds
2018-03-06 22:09 ` Arnd Bergmann
2018-03-06 22:24 ` Linus Torvalds
2018-03-06 21:36 ` Steven Rostedt
2018-03-06 21:41 ` Linus Torvalds
2018-03-06 21:47 ` Linus Torvalds
2018-03-06 22:29 ` Steven Rostedt
2018-03-06 22:41 ` Linus Torvalds
2018-03-06 22:52 ` Steven Rostedt
2018-03-06 23:09 ` Linus Torvalds
2018-03-12 8:22 ` Ingo Molnar
2018-03-12 9:00 ` Ard Biesheuvel
2018-03-12 9:21 ` Ingo Molnar
2018-03-06 21:47 ` Arnd Bergmann
2018-03-06 22:19 ` Linus Torvalds
2018-03-05 20:26 ` Peter Zijlstra
2018-03-03 20:00 ` [PATCH RFC v9 5/7] lkdtm: Add a test for STACKLEAK Alexander Popov
2018-03-03 20:00 ` [PATCH RFC v9 6/7] fs/proc: Show STACKLEAK metrics in the /proc file system Alexander Popov
2018-03-03 20:00 ` [PATCH RFC v9 7/7] doc: self-protection: Add information about STACKLEAK feature Alexander Popov
2018-03-05 19:34 ` [PATCH RFC v9 0/7] Introduce the STACKLEAK feature and a test for it Kees Cook
2018-03-05 19:42 ` Dave Hansen
2018-03-05 20:02 ` Kees Cook
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