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From: Andrey Konovalov <andreyknvl@google.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Robin Murphy <robin.murphy@arm.com>,
	Al Viro <viro@zeniv.linux.org.uk>,
	Andrey Konovalov <andreyknvl@google.com>,
	Kees Cook <keescook@chromium.org>,
	Kate Stewart <kstewart@linuxfoundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@kernel.org>,
	"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
	Shuah Khan <shuah@kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	linux-doc@vger.kernel.org,
	Linux Memory Management List <linux-mm@kvack.org>,
	linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>
Cc: Dmitry Vyukov <dvyukov@google.com>,
	Kostya Serebryany <kcc@google.com>,
	Evgeniy Stepanov <eugenis@google.com>,
	Lee Smith <Lee.Smith@arm.com>,
	Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
	Jacob Bramley <Jacob.Bramley@arm.com>,
	Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
	Chintan Pandya <cpandya@codeaurora.org>
Subject: Re: [PATCH v4 0/7] arm64: untag user pointers passed to the kernel
Date: Tue, 26 Jun 2018 14:47:50 +0200	[thread overview]
Message-ID: <CAAeHK+zqtyGzd_CZ7qKZKU-uZjZ1Pkmod5h8zzbN0xCV26nSfg@mail.gmail.com> (raw)
In-Reply-To: <cover.1529507994.git.andreyknvl@google.com>

On Wed, Jun 20, 2018 at 5:24 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
> arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> tags into the top byte of each pointer. Userspace programs (such as
> HWASan, a memory debugging tool [1]) might use this feature and pass
> tagged user pointers to the kernel through syscalls or other interfaces.
>
> This patch makes a few of the kernel interfaces accept tagged user
> pointers. The kernel is already able to handle user faults with tagged
> pointers and has the untagged_addr macro, which this patchset reuses.
>
> We're not trying to cover all possible ways the kernel accepts user
> pointers in one patchset, so this one should be considered as a start.
>
> Thanks!
>
> [1] http://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html

Hi!

Is there anything I should do to move forward with this?

I've received zero replies to this patch set (v3 and v4) over the last month.

Thanks!

WARNING: multiple messages have this Message-ID (diff)
From: Andrey Konovalov <andreyknvl@google.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Robin Murphy <robin.murphy@arm.com>,
	Al Viro <viro@zeniv.linux.org.uk>,
	Andrey Konovalov <andreyknvl@google.com>,
	Kees Cook <keescook@chromium.org>,
	Kate Stewart <kstewart@linuxfoundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@kernel.org>,
	"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
	Shuah Khan <shuah@kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	linux-doc@vger.kernel.org,
	Linux Memory Management List <linux-mm@kvack.org>,
	linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>
Cc: Dmitry Vyukov <dvyukov@google.com>,
	Kostya Serebryany <kcc@google.com>,
	Evgeniy Stepanov <eugenis@google.com>,
	Lee Smith <Lee.Smith@arm.com>,
	Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
	Jacob Bramley <Jacob.Bramley@arm.com>,
	Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
	Chintan Pandya <cpandya@codeaurora.org>
Subject: Re: [PATCH v4 0/7] arm64: untag user pointers passed to the kernel
Date: Tue, 26 Jun 2018 14:47:50 +0200	[thread overview]
Message-ID: <CAAeHK+zqtyGzd_CZ7qKZKU-uZjZ1Pkmod5h8zzbN0xCV26nSfg@mail.gmail.com> (raw)
In-Reply-To: <cover.1529507994.git.andreyknvl@google.com>

On Wed, Jun 20, 2018 at 5:24 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
> arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> tags into the top byte of each pointer. Userspace programs (such as
> HWASan, a memory debugging tool [1]) might use this feature and pass
> tagged user pointers to the kernel through syscalls or other interfaces.
>
> This patch makes a few of the kernel interfaces accept tagged user
> pointers. The kernel is already able to handle user faults with tagged
> pointers and has the untagged_addr macro, which this patchset reuses.
>
> We're not trying to cover all possible ways the kernel accepts user
> pointers in one patchset, so this one should be considered as a start.
>
> Thanks!
>
> [1] http://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html

Hi!

Is there anything I should do to move forward with this?

I've received zero replies to this patch set (v3 and v4) over the last month.

Thanks!
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

WARNING: multiple messages have this Message-ID (diff)
From: andreyknvl at google.com (Andrey Konovalov)
Subject: [PATCH v4 0/7] arm64: untag user pointers passed to the kernel
Date: Tue, 26 Jun 2018 14:47:50 +0200	[thread overview]
Message-ID: <CAAeHK+zqtyGzd_CZ7qKZKU-uZjZ1Pkmod5h8zzbN0xCV26nSfg@mail.gmail.com> (raw)
In-Reply-To: <cover.1529507994.git.andreyknvl@google.com>

On Wed, Jun 20, 2018 at 5:24 PM, Andrey Konovalov <andreyknvl at google.com> wrote:
> arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> tags into the top byte of each pointer. Userspace programs (such as
> HWASan, a memory debugging tool [1]) might use this feature and pass
> tagged user pointers to the kernel through syscalls or other interfaces.
>
> This patch makes a few of the kernel interfaces accept tagged user
> pointers. The kernel is already able to handle user faults with tagged
> pointers and has the untagged_addr macro, which this patchset reuses.
>
> We're not trying to cover all possible ways the kernel accepts user
> pointers in one patchset, so this one should be considered as a start.
>
> Thanks!
>
> [1] http://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html

Hi!

Is there anything I should do to move forward with this?

I've received zero replies to this patch set (v3 and v4) over the last month.

Thanks!
--
To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in
the body of a message to majordomo at vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

WARNING: multiple messages have this Message-ID (diff)
From: andreyknvl@google.com (Andrey Konovalov)
Subject: [PATCH v4 0/7] arm64: untag user pointers passed to the kernel
Date: Tue, 26 Jun 2018 14:47:50 +0200	[thread overview]
Message-ID: <CAAeHK+zqtyGzd_CZ7qKZKU-uZjZ1Pkmod5h8zzbN0xCV26nSfg@mail.gmail.com> (raw)
Message-ID: <20180626124750.j0EoASvNkdUrJ6OMlggUVxGDwR_RcevAnXMJB_UknUg@z> (raw)
In-Reply-To: <cover.1529507994.git.andreyknvl@google.com>

On Wed, Jun 20, 2018@5:24 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
> arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> tags into the top byte of each pointer. Userspace programs (such as
> HWASan, a memory debugging tool [1]) might use this feature and pass
> tagged user pointers to the kernel through syscalls or other interfaces.
>
> This patch makes a few of the kernel interfaces accept tagged user
> pointers. The kernel is already able to handle user faults with tagged
> pointers and has the untagged_addr macro, which this patchset reuses.
>
> We're not trying to cover all possible ways the kernel accepts user
> pointers in one patchset, so this one should be considered as a start.
>
> Thanks!
>
> [1] http://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html

Hi!

Is there anything I should do to move forward with this?

I've received zero replies to this patch set (v3 and v4) over the last month.

Thanks!
--
To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in
the body of a message to majordomo at vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

WARNING: multiple messages have this Message-ID (diff)
From: andreyknvl@google.com (Andrey Konovalov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 0/7] arm64: untag user pointers passed to the kernel
Date: Tue, 26 Jun 2018 14:47:50 +0200	[thread overview]
Message-ID: <CAAeHK+zqtyGzd_CZ7qKZKU-uZjZ1Pkmod5h8zzbN0xCV26nSfg@mail.gmail.com> (raw)
In-Reply-To: <cover.1529507994.git.andreyknvl@google.com>

On Wed, Jun 20, 2018 at 5:24 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
> arm64 has a feature called Top Byte Ignore, which allows to embed pointer
> tags into the top byte of each pointer. Userspace programs (such as
> HWASan, a memory debugging tool [1]) might use this feature and pass
> tagged user pointers to the kernel through syscalls or other interfaces.
>
> This patch makes a few of the kernel interfaces accept tagged user
> pointers. The kernel is already able to handle user faults with tagged
> pointers and has the untagged_addr macro, which this patchset reuses.
>
> We're not trying to cover all possible ways the kernel accepts user
> pointers in one patchset, so this one should be considered as a start.
>
> Thanks!
>
> [1] http://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html

Hi!

Is there anything I should do to move forward with this?

I've received zero replies to this patch set (v3 and v4) over the last month.

Thanks!

  parent reply	other threads:[~2018-06-26 12:47 UTC|newest]

Thread overview: 196+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-20 15:24 [PATCH v4 0/7] arm64: untag user pointers passed to the kernel Andrey Konovalov
2018-06-20 15:24 ` Andrey Konovalov
2018-06-20 15:24 ` Andrey Konovalov
2018-06-20 15:24 ` Andrey Konovalov
2018-06-20 15:24 ` Andrey Konovalov
2018-06-20 15:24 ` andreyknvl
2018-06-20 15:24 ` Andrey Konovalov
2018-06-20 15:24 ` [PATCH v4 1/7] arm64: add type casts to untagged_addr macro Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` andreyknvl
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24 ` [PATCH v4 2/7] uaccess: add untagged_addr definition for other arches Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` andreyknvl
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24 ` [PATCH v4 3/7] arm64: untag user addresses in access_ok and __uaccess_mask_ptr Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` andreyknvl
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24 ` [PATCH v4 4/7] mm, arm64: untag user addresses in mm/gup.c Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` andreyknvl
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24 ` [PATCH v4 5/7] lib, arm64: untag addrs passed to strncpy_from_user and strnlen_user Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` andreyknvl
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24 ` [PATCH v4 6/7] arm64: update Documentation/arm64/tagged-pointers.txt Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` andreyknvl
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24 ` [PATCH v4 7/7] selftests, arm64: add a selftest for passing tagged pointers to kernel Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` Andrey Konovalov
2018-06-20 15:24   ` andreyknvl
2018-06-20 15:24   ` Andrey Konovalov
2018-06-26 12:47 ` Andrey Konovalov [this message]
2018-06-26 12:47   ` [PATCH v4 0/7] arm64: untag user pointers passed to the kernel Andrey Konovalov
2018-06-26 12:47   ` Andrey Konovalov
2018-06-26 12:47   ` andreyknvl
2018-06-26 12:47   ` Andrey Konovalov
2018-06-26 17:29   ` Catalin Marinas
2018-06-26 17:29     ` Catalin Marinas
2018-06-26 17:29     ` Catalin Marinas
2018-06-26 17:29     ` Catalin Marinas
2018-06-26 17:29     ` catalin.marinas
2018-06-26 17:29     ` Catalin Marinas
2018-06-27 15:05     ` Andrey Konovalov
2018-06-27 15:05       ` Andrey Konovalov
2018-06-27 15:05       ` Andrey Konovalov
2018-06-27 15:05       ` Andrey Konovalov
2018-06-27 15:05       ` andreyknvl
2018-06-27 15:05       ` Andrey Konovalov
2018-06-27 15:08       ` Ramana Radhakrishnan
2018-06-27 15:08         ` Ramana Radhakrishnan
2018-06-27 15:08         ` Ramana Radhakrishnan
2018-06-27 15:08         ` Ramana Radhakrishnan
2018-06-27 15:08         ` Ramana Radhakrishnan
2018-06-27 15:08         ` ramana.radhakrishnan
2018-06-27 15:08         ` Ramana Radhakrishnan
2018-06-27 17:17         ` Catalin Marinas
2018-06-27 17:17           ` Catalin Marinas
2018-06-27 17:17           ` Catalin Marinas
2018-06-27 17:17           ` Catalin Marinas
2018-06-27 17:17           ` Catalin Marinas
2018-06-27 17:17           ` catalin.marinas
2018-06-27 17:17           ` Catalin Marinas
2018-06-28  6:17           ` Luc Van Oostenryck
2018-06-28  6:17             ` Luc Van Oostenryck
2018-06-28  6:17             ` Luc Van Oostenryck
2018-06-28  6:17             ` Luc Van Oostenryck
2018-06-28  6:17             ` Luc Van Oostenryck
2018-06-28  6:17             ` luc.vanoostenryck
2018-06-28  6:17             ` Luc Van Oostenryck
2018-06-28 10:27             ` Catalin Marinas
2018-06-28 10:27               ` Catalin Marinas
2018-06-28 10:27               ` Catalin Marinas
2018-06-28 10:27               ` Catalin Marinas
2018-06-28 10:27               ` Catalin Marinas
2018-06-28 10:27               ` catalin.marinas
2018-06-28 10:27               ` Catalin Marinas
2018-06-28 10:46               ` Luc Van Oostenryck
2018-06-28 10:46                 ` Luc Van Oostenryck
2018-06-28 10:46                 ` Luc Van Oostenryck
2018-06-28 10:46                 ` Luc Van Oostenryck
2018-06-28 10:46                 ` Luc Van Oostenryck
2018-06-28 10:46                 ` luc.vanoostenryck
2018-06-28 10:46                 ` Luc Van Oostenryck
2018-06-28 14:48                 ` Catalin Marinas
2018-06-28 14:48                   ` Catalin Marinas
2018-06-28 14:48                   ` Catalin Marinas
2018-06-28 14:48                   ` Catalin Marinas
2018-06-28 14:48                   ` Catalin Marinas
2018-06-28 14:48                   ` catalin.marinas
2018-06-28 14:48                   ` Catalin Marinas
2018-06-28 15:28                   ` Luc Van Oostenryck
2018-06-28 15:28                     ` Luc Van Oostenryck
2018-06-28 15:28                     ` Luc Van Oostenryck
2018-06-28 15:28                     ` Luc Van Oostenryck
2018-06-28 15:28                     ` Luc Van Oostenryck
2018-06-28 15:28                     ` luc.vanoostenryck
2018-06-28 15:28                     ` Luc Van Oostenryck
2018-06-29 15:27                   ` David Laight
2018-06-29 15:27                     ` David Laight
2018-06-29 15:27                     ` David Laight
2018-06-29 15:27                     ` David Laight
2018-06-29 15:27                     ` David Laight
2018-06-29 15:27                     ` David.Laight
2018-06-29 15:27                     ` David Laight
2018-06-28 23:21               ` [PATCH] sparse: stricter warning for explicit cast to ulong Luc Van Oostenryck
2018-06-28 23:21                 ` Luc Van Oostenryck
2018-06-28 23:21                 ` Luc Van Oostenryck
2018-06-28 23:21                 ` Luc Van Oostenryck
2018-06-28 23:21                 ` luc.vanoostenryck
2018-06-28 23:21                 ` Luc Van Oostenryck
2018-06-28 23:21                 ` Luc Van Oostenryck
2018-06-28 19:30       ` [PATCH v4 0/7] arm64: untag user pointers passed to the kernel Andrey Konovalov
2018-06-28 19:30         ` Andrey Konovalov
2018-06-28 19:30         ` Andrey Konovalov
2018-06-28 19:30         ` Andrey Konovalov
2018-06-28 19:30         ` andreyknvl
2018-06-28 19:30         ` Andrey Konovalov
2018-06-29 15:19         ` Andrey Konovalov
2018-06-29 15:19           ` Andrey Konovalov
2018-06-29 15:19           ` Andrey Konovalov
2018-06-29 15:19           ` Andrey Konovalov
2018-06-29 15:19           ` andreyknvl
2018-06-29 15:19           ` Andrey Konovalov
2018-06-29 15:20           ` Andrey Konovalov
2018-06-29 15:20             ` Andrey Konovalov
2018-06-29 15:20             ` Andrey Konovalov
2018-06-29 15:20             ` Andrey Konovalov
2018-06-29 15:20             ` andreyknvl
2018-06-29 15:20             ` Andrey Konovalov
2018-07-16 11:25         ` Andrey Konovalov
2018-07-16 11:25           ` Andrey Konovalov
2018-07-16 11:25           ` Andrey Konovalov
2018-07-16 11:25           ` Andrey Konovalov
2018-07-16 11:25           ` andreyknvl
2018-07-16 11:25           ` Andrey Konovalov
2018-07-31 13:23           ` Andrey Konovalov
2018-07-31 13:23             ` Andrey Konovalov
2018-07-31 13:23             ` Andrey Konovalov
2018-07-31 13:23             ` Andrey Konovalov
2018-07-31 13:23             ` andreyknvl
2018-07-31 13:23             ` Andrey Konovalov
2018-08-01 17:42           ` Catalin Marinas
2018-08-01 17:42             ` Catalin Marinas
2018-08-01 17:42             ` Catalin Marinas
2018-08-01 17:42             ` Catalin Marinas
2018-08-01 17:42             ` catalin.marinas
2018-08-01 17:42             ` Catalin Marinas
2018-08-02 15:00             ` Andrey Konovalov
2018-08-02 15:00               ` Andrey Konovalov
2018-08-02 15:00               ` Andrey Konovalov
2018-08-02 15:00               ` Andrey Konovalov
2018-08-02 15:00               ` andreyknvl
2018-08-02 15:00               ` Andrey Konovalov
2018-08-03 14:59               ` Andrey Konovalov
2018-08-03 14:59                 ` Andrey Konovalov
2018-08-03 14:59                 ` Andrey Konovalov
2018-08-03 14:59                 ` Andrey Konovalov
2018-08-03 14:59                 ` andreyknvl
2018-08-03 14:59                 ` Andrey Konovalov
2018-08-03 15:09                 ` Greg Kroah-Hartman
2018-08-03 15:09                   ` Greg Kroah-Hartman
2018-08-03 15:09                   ` Greg Kroah-Hartman
2018-08-03 15:09                   ` Greg Kroah-Hartman
2018-08-03 15:09                   ` gregkh
2018-08-03 15:09                   ` Greg Kroah-Hartman
2018-08-03 16:43                   ` Matthew Wilcox
2018-08-03 16:43                     ` Matthew Wilcox
2018-08-03 16:43                     ` Matthew Wilcox
2018-08-03 16:43                     ` Matthew Wilcox
2018-08-03 16:43                     ` willy
2018-08-03 16:43                     ` Matthew Wilcox
2018-08-03 16:54                     ` Andrey Konovalov
2018-08-03 16:54                       ` Andrey Konovalov
2018-08-03 16:54                       ` Andrey Konovalov
2018-08-03 16:54                       ` Andrey Konovalov
2018-08-03 16:54                       ` andreyknvl
2018-08-03 16:54                       ` Andrey Konovalov
2018-08-06 19:12                   ` Luc Van Oostenryck
2018-08-06 19:12                     ` Luc Van Oostenryck
2018-08-06 19:12                     ` Luc Van Oostenryck
2018-08-06 19:12                     ` Luc Van Oostenryck
2018-08-06 19:12                     ` luc.vanoostenryck
2018-08-06 19:12                     ` Luc Van Oostenryck
2023-05-17 18:39 Parlett23

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