From: Jason Gunthorpe <jgg@ziepe.ca>
To: Dave Martin <Dave.Martin@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
kvm@vger.kernel.org, Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Will Deacon <will.deacon@arm.com>,
dri-devel@lists.freedesktop.org, linux-mm@kvack.org,
linux-kselftest@vger.kernel.org,
Felix Kuehling <Felix.Kuehling@amd.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Leon Romanovsky <leon@kernel.org>,
linux-rdma@vger.kernel.org, amd-gfx@lists.freedesktop.org,
Dmitry Vyukov <dvyukov@google.com>,
Evgeniy Stepanov <eugenis@google.com>,
linux-media@vger.kernel.org,
Kevin Brodsky <kevin.brodsky@arm.com>,
Kees Cook <keescook@chromium.org>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Ramana
Subject: Re: [PATCH v15 00/17] arm64: untag user pointers passed to the kernel
Date: Wed, 22 May 2019 21:20:52 -0300 [thread overview]
Message-ID: <20190523002052.GF15389@ziepe.ca> (raw)
In-Reply-To: <20190522134925.GV28398@e103592.cambridge.arm.com>
On Wed, May 22, 2019 at 02:49:28PM +0100, Dave Martin wrote:
> On Tue, May 21, 2019 at 03:48:56PM -0300, Jason Gunthorpe wrote:
> > On Fri, May 17, 2019 at 03:49:31PM +0100, Catalin Marinas wrote:
> >
> > > The tagged pointers (whether hwasan or MTE) should ideally be a
> > > transparent feature for the application writer but I don't think we can
> > > solve it entirely and make it seamless for the multitude of ioctls().
> > > I'd say you only opt in to such feature if you know what you are doing
> > > and the user code takes care of specific cases like ioctl(), hence the
> > > prctl() proposal even for the hwasan.
> >
> > I'm not sure such a dire view is warrented..
> >
> > The ioctl situation is not so bad, other than a few special cases,
> > most drivers just take a 'void __user *' and pass it as an argument to
> > some function that accepts a 'void __user *'. sparse et al verify
> > this.
> >
> > As long as the core functions do the right thing the drivers will be
> > OK.
> >
> > The only place things get dicy is if someone casts to unsigned long
> > (ie for vma work) but I think that reflects that our driver facing
> > APIs for VMAs are compatible with static analysis (ie I have no
> > earthly idea why get_user_pages() accepts an unsigned long), not that
> > this is too hard.
>
> If multiple people will care about this, perhaps we should try to
> annotate types more explicitly in SYSCALL_DEFINEx() and ABI data
> structures.
>
> For example, we could have a couple of mutually exclusive modifiers
>
> T __object *
> T __vaddr * (or U __vaddr)
>
> In the first case the pointer points to an object (in the C sense)
> that the call may dereference but not use for any other purpose.
How would you use these two differently?
So far the kernel has worked that __user should tag any pointer that
is from userspace and then you can't do anything with it until you
transform it into a kernel something
> to tell static analysers the real type of pointers smuggled through
> UAPI disguised as other types (*cough* KVM, etc.)
Yes, that would help alot, we often have to pass pointers through a
u64 in the uAPI, and there is no static checker support to make sure
they are run through the u64_to_user_ptr() helper.
Jason
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@ziepe.ca>
To: Dave Martin <Dave.Martin@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
kvm@vger.kernel.org, Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Will Deacon <will.deacon@arm.com>,
dri-devel@lists.freedesktop.org, linux-mm@kvack.org,
linux-kselftest@vger.kernel.org,
Felix Kuehling <Felix.Kuehling@amd.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Leon Romanovsky <leon@kernel.org>,
linux-rdma@vger.kernel.org, amd-gfx@lists.freedesktop.org,
Dmitry Vyukov <dvyukov@google.com>,
Evgeniy Stepanov <eugenis@google.com>,
linux-media@vger.kernel.org,
Kevin Brodsky <kevin.brodsky@arm.com>,
Kees Cook <keescook@chromium.org>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Kostya Serebryany <kcc@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Yishai Hadas <yishaih@mellanox.com>,
linux-kernel@vger.kernel.org,
Jens Wiklander <jens.wiklander@linaro.org>,
Lee Smith <Lee.Smith@arm.com>,
Alexander Deucher <Alexander.Deucher@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
Robin Murphy <robin.murphy@arm.com>,
Christian Koenig <Christian.Koenig@amd.com>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: Re: [PATCH v15 00/17] arm64: untag user pointers passed to the kernel
Date: Wed, 22 May 2019 21:20:52 -0300 [thread overview]
Message-ID: <20190523002052.GF15389@ziepe.ca> (raw)
In-Reply-To: <20190522134925.GV28398@e103592.cambridge.arm.com>
On Wed, May 22, 2019 at 02:49:28PM +0100, Dave Martin wrote:
> On Tue, May 21, 2019 at 03:48:56PM -0300, Jason Gunthorpe wrote:
> > On Fri, May 17, 2019 at 03:49:31PM +0100, Catalin Marinas wrote:
> >
> > > The tagged pointers (whether hwasan or MTE) should ideally be a
> > > transparent feature for the application writer but I don't think we can
> > > solve it entirely and make it seamless for the multitude of ioctls().
> > > I'd say you only opt in to such feature if you know what you are doing
> > > and the user code takes care of specific cases like ioctl(), hence the
> > > prctl() proposal even for the hwasan.
> >
> > I'm not sure such a dire view is warrented..
> >
> > The ioctl situation is not so bad, other than a few special cases,
> > most drivers just take a 'void __user *' and pass it as an argument to
> > some function that accepts a 'void __user *'. sparse et al verify
> > this.
> >
> > As long as the core functions do the right thing the drivers will be
> > OK.
> >
> > The only place things get dicy is if someone casts to unsigned long
> > (ie for vma work) but I think that reflects that our driver facing
> > APIs for VMAs are compatible with static analysis (ie I have no
> > earthly idea why get_user_pages() accepts an unsigned long), not that
> > this is too hard.
>
> If multiple people will care about this, perhaps we should try to
> annotate types more explicitly in SYSCALL_DEFINEx() and ABI data
> structures.
>
> For example, we could have a couple of mutually exclusive modifiers
>
> T __object *
> T __vaddr * (or U __vaddr)
>
> In the first case the pointer points to an object (in the C sense)
> that the call may dereference but not use for any other purpose.
How would you use these two differently?
So far the kernel has worked that __user should tag any pointer that
is from userspace and then you can't do anything with it until you
transform it into a kernel something
> to tell static analysers the real type of pointers smuggled through
> UAPI disguised as other types (*cough* KVM, etc.)
Yes, that would help alot, we often have to pass pointers through a
u64 in the uAPI, and there is no static checker support to make sure
they are run through the u64_to_user_ptr() helper.
Jason
WARNING: multiple messages have this Message-ID (diff)
From: jgg at ziepe.ca (Jason Gunthorpe)
Subject: [PATCH v15 00/17] arm64: untag user pointers passed to the kernel
Date: Wed, 22 May 2019 21:20:52 -0300 [thread overview]
Message-ID: <20190523002052.GF15389@ziepe.ca> (raw)
In-Reply-To: <20190522134925.GV28398@e103592.cambridge.arm.com>
On Wed, May 22, 2019 at 02:49:28PM +0100, Dave Martin wrote:
> On Tue, May 21, 2019 at 03:48:56PM -0300, Jason Gunthorpe wrote:
> > On Fri, May 17, 2019 at 03:49:31PM +0100, Catalin Marinas wrote:
> >
> > > The tagged pointers (whether hwasan or MTE) should ideally be a
> > > transparent feature for the application writer but I don't think we can
> > > solve it entirely and make it seamless for the multitude of ioctls().
> > > I'd say you only opt in to such feature if you know what you are doing
> > > and the user code takes care of specific cases like ioctl(), hence the
> > > prctl() proposal even for the hwasan.
> >
> > I'm not sure such a dire view is warrented..
> >
> > The ioctl situation is not so bad, other than a few special cases,
> > most drivers just take a 'void __user *' and pass it as an argument to
> > some function that accepts a 'void __user *'. sparse et al verify
> > this.
> >
> > As long as the core functions do the right thing the drivers will be
> > OK.
> >
> > The only place things get dicy is if someone casts to unsigned long
> > (ie for vma work) but I think that reflects that our driver facing
> > APIs for VMAs are compatible with static analysis (ie I have no
> > earthly idea why get_user_pages() accepts an unsigned long), not that
> > this is too hard.
>
> If multiple people will care about this, perhaps we should try to
> annotate types more explicitly in SYSCALL_DEFINEx() and ABI data
> structures.
>
> For example, we could have a couple of mutually exclusive modifiers
>
> T __object *
> T __vaddr * (or U __vaddr)
>
> In the first case the pointer points to an object (in the C sense)
> that the call may dereference but not use for any other purpose.
How would you use these two differently?
So far the kernel has worked that __user should tag any pointer that
is from userspace and then you can't do anything with it until you
transform it into a kernel something
> to tell static analysers the real type of pointers smuggled through
> UAPI disguised as other types (*cough* KVM, etc.)
Yes, that would help alot, we often have to pass pointers through a
u64 in the uAPI, and there is no static checker support to make sure
they are run through the u64_to_user_ptr() helper.
Jason
WARNING: multiple messages have this Message-ID (diff)
From: jgg@ziepe.ca (Jason Gunthorpe)
Subject: [PATCH v15 00/17] arm64: untag user pointers passed to the kernel
Date: Wed, 22 May 2019 21:20:52 -0300 [thread overview]
Message-ID: <20190523002052.GF15389@ziepe.ca> (raw)
Message-ID: <20190523002052.UCQ2TBwHvjjpu0rHug8ICgQtLu453_r1SqkMcsCXgaU@z> (raw)
In-Reply-To: <20190522134925.GV28398@e103592.cambridge.arm.com>
On Wed, May 22, 2019@02:49:28PM +0100, Dave Martin wrote:
> On Tue, May 21, 2019@03:48:56PM -0300, Jason Gunthorpe wrote:
> > On Fri, May 17, 2019@03:49:31PM +0100, Catalin Marinas wrote:
> >
> > > The tagged pointers (whether hwasan or MTE) should ideally be a
> > > transparent feature for the application writer but I don't think we can
> > > solve it entirely and make it seamless for the multitude of ioctls().
> > > I'd say you only opt in to such feature if you know what you are doing
> > > and the user code takes care of specific cases like ioctl(), hence the
> > > prctl() proposal even for the hwasan.
> >
> > I'm not sure such a dire view is warrented..
> >
> > The ioctl situation is not so bad, other than a few special cases,
> > most drivers just take a 'void __user *' and pass it as an argument to
> > some function that accepts a 'void __user *'. sparse et al verify
> > this.
> >
> > As long as the core functions do the right thing the drivers will be
> > OK.
> >
> > The only place things get dicy is if someone casts to unsigned long
> > (ie for vma work) but I think that reflects that our driver facing
> > APIs for VMAs are compatible with static analysis (ie I have no
> > earthly idea why get_user_pages() accepts an unsigned long), not that
> > this is too hard.
>
> If multiple people will care about this, perhaps we should try to
> annotate types more explicitly in SYSCALL_DEFINEx() and ABI data
> structures.
>
> For example, we could have a couple of mutually exclusive modifiers
>
> T __object *
> T __vaddr * (or U __vaddr)
>
> In the first case the pointer points to an object (in the C sense)
> that the call may dereference but not use for any other purpose.
How would you use these two differently?
So far the kernel has worked that __user should tag any pointer that
is from userspace and then you can't do anything with it until you
transform it into a kernel something
> to tell static analysers the real type of pointers smuggled through
> UAPI disguised as other types (*cough* KVM, etc.)
Yes, that would help alot, we often have to pass pointers through a
u64 in the uAPI, and there is no static checker support to make sure
they are run through the u64_to_user_ptr() helper.
Jason
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@ziepe.ca>
To: Dave Martin <Dave.Martin@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
kvm@vger.kernel.org, Christian Koenig <Christian.Koenig@amd.com>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
dri-devel@lists.freedesktop.org, linux-mm@kvack.org,
Lee Smith <Lee.Smith@arm.com>,
linux-kselftest@vger.kernel.org,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Leon Romanovsky <leon@kernel.org>,
linux-rdma@vger.kernel.org, amd-gfx@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
Evgeniy Stepanov <eugenis@google.com>,
linux-media@vger.kernel.org, Kees Cook <keescook@chromium.org>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Dmitry Vyukov <dvyukov@google.com>,
Kostya Serebryany <kcc@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Felix Kuehling <Felix.Kuehling@amd.com>,
linux-kernel@vger.kernel.org,
Jens Wiklander <jens.wiklander@linaro.org>,
Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
Alexander Deucher <Alexander.Deucher@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
Robin Murphy <robin.murphy@arm.com>,
Yishai Hadas <yishaih@mellanox.com>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: Re: [PATCH v15 00/17] arm64: untag user pointers passed to the kernel
Date: Wed, 22 May 2019 21:20:52 -0300 [thread overview]
Message-ID: <20190523002052.GF15389@ziepe.ca> (raw)
In-Reply-To: <20190522134925.GV28398@e103592.cambridge.arm.com>
On Wed, May 22, 2019 at 02:49:28PM +0100, Dave Martin wrote:
> On Tue, May 21, 2019 at 03:48:56PM -0300, Jason Gunthorpe wrote:
> > On Fri, May 17, 2019 at 03:49:31PM +0100, Catalin Marinas wrote:
> >
> > > The tagged pointers (whether hwasan or MTE) should ideally be a
> > > transparent feature for the application writer but I don't think we can
> > > solve it entirely and make it seamless for the multitude of ioctls().
> > > I'd say you only opt in to such feature if you know what you are doing
> > > and the user code takes care of specific cases like ioctl(), hence the
> > > prctl() proposal even for the hwasan.
> >
> > I'm not sure such a dire view is warrented..
> >
> > The ioctl situation is not so bad, other than a few special cases,
> > most drivers just take a 'void __user *' and pass it as an argument to
> > some function that accepts a 'void __user *'. sparse et al verify
> > this.
> >
> > As long as the core functions do the right thing the drivers will be
> > OK.
> >
> > The only place things get dicy is if someone casts to unsigned long
> > (ie for vma work) but I think that reflects that our driver facing
> > APIs for VMAs are compatible with static analysis (ie I have no
> > earthly idea why get_user_pages() accepts an unsigned long), not that
> > this is too hard.
>
> If multiple people will care about this, perhaps we should try to
> annotate types more explicitly in SYSCALL_DEFINEx() and ABI data
> structures.
>
> For example, we could have a couple of mutually exclusive modifiers
>
> T __object *
> T __vaddr * (or U __vaddr)
>
> In the first case the pointer points to an object (in the C sense)
> that the call may dereference but not use for any other purpose.
How would you use these two differently?
So far the kernel has worked that __user should tag any pointer that
is from userspace and then you can't do anything with it until you
transform it into a kernel something
> to tell static analysers the real type of pointers smuggled through
> UAPI disguised as other types (*cough* KVM, etc.)
Yes, that would help alot, we often have to pass pointers through a
u64 in the uAPI, and there is no static checker support to make sure
they are run through the u64_to_user_ptr() helper.
Jason
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-05-23 0:20 UTC|newest]
Thread overview: 558+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-06 16:30 [PATCH v15 00/17] arm64: untag user pointers passed to the kernel Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` [PATCH v15 01/17] uaccess: add untagged_addr definition for other arches Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-29 14:49 ` Khalid Aziz
2019-05-29 14:49 ` Khalid Aziz
2019-05-29 14:49 ` Khalid Aziz
2019-05-29 14:49 ` khalid.aziz
2019-05-29 14:49 ` Khalid Aziz
2019-05-06 16:30 ` [PATCH v15 02/17] arm64: untag user pointers in access_ok and __uaccess_mask_ptr Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` [PATCH v15 03/17] lib, arm64: untag user pointers in strn*_user Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-22 10:41 ` Catalin Marinas
2019-05-22 10:41 ` Catalin Marinas
2019-05-22 10:41 ` Catalin Marinas
2019-05-22 10:41 ` catalin.marinas
2019-05-22 10:41 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 04/17] mm: add ksys_ wrappers to memory syscalls Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-22 10:56 ` Catalin Marinas
2019-05-22 10:56 ` Catalin Marinas
2019-05-22 10:56 ` Catalin Marinas
2019-05-22 10:56 ` catalin.marinas
2019-05-22 10:56 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 05/17] arms64: untag user pointers passed " Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-22 11:49 ` Catalin Marinas
2019-05-22 11:49 ` Catalin Marinas
2019-05-22 11:49 ` Catalin Marinas
2019-05-22 11:49 ` catalin.marinas
2019-05-22 11:49 ` Catalin Marinas
2019-05-22 21:16 ` Evgenii Stepanov
2019-05-22 21:16 ` Evgenii Stepanov
2019-05-22 21:16 ` Evgenii Stepanov
2019-05-22 21:16 ` Evgenii Stepanov
2019-05-22 21:16 ` eugenis
2019-05-22 21:16 ` Evgenii Stepanov
2019-05-23 9:04 ` Catalin Marinas
2019-05-23 9:04 ` Catalin Marinas
2019-05-23 9:04 ` Catalin Marinas
2019-05-23 9:04 ` Catalin Marinas
2019-05-23 9:04 ` catalin.marinas
2019-05-23 9:04 ` Catalin Marinas
2019-05-24 4:23 ` Evgenii Stepanov
2019-05-24 4:23 ` Evgenii Stepanov
2019-05-24 4:23 ` Evgenii Stepanov
2019-05-24 4:23 ` Evgenii Stepanov
2019-05-24 4:23 ` eugenis
2019-05-24 4:23 ` Evgenii Stepanov
2019-05-24 15:41 ` Andrew Murray
2019-05-24 15:41 ` Andrew Murray
2019-05-24 15:41 ` Andrew Murray
2019-05-24 15:41 ` andrew.murray
2019-05-24 15:41 ` Andrew Murray
2019-05-25 9:57 ` Catalin Marinas
2019-05-25 9:57 ` Catalin Marinas
2019-05-25 9:57 ` Catalin Marinas
2019-05-25 9:57 ` catalin.marinas
2019-05-25 9:57 ` Catalin Marinas
2019-05-27 9:42 ` Catalin Marinas
2019-05-27 9:42 ` Catalin Marinas
2019-05-27 9:42 ` Catalin Marinas
2019-05-27 9:42 ` catalin.marinas
2019-05-27 9:42 ` Catalin Marinas
2019-05-27 14:37 ` Catalin Marinas
2019-05-27 14:37 ` Catalin Marinas
2019-05-27 14:37 ` Catalin Marinas
2019-05-27 14:37 ` catalin.marinas
2019-05-27 14:37 ` Catalin Marinas
2019-05-28 14:54 ` Andrew Murray
2019-05-28 14:54 ` Andrew Murray
2019-05-28 14:54 ` Andrew Murray
2019-05-28 14:54 ` andrew.murray
2019-05-28 14:54 ` Andrew Murray
2019-05-28 15:40 ` Catalin Marinas
2019-05-28 15:40 ` Catalin Marinas
2019-05-28 15:40 ` Catalin Marinas
2019-05-28 15:40 ` catalin.marinas
2019-05-28 15:40 ` Catalin Marinas
2019-05-28 15:56 ` Dave Martin
2019-05-28 15:56 ` Dave Martin
2019-05-28 15:56 ` Dave Martin
2019-05-28 15:56 ` Dave.Martin
2019-05-28 15:56 ` Dave Martin
2019-05-28 16:34 ` Catalin Marinas
2019-05-28 16:34 ` Catalin Marinas
2019-05-28 16:34 ` Catalin Marinas
2019-05-28 16:34 ` catalin.marinas
2019-05-28 16:34 ` Catalin Marinas
2019-05-29 12:42 ` Dave Martin
2019-05-29 12:42 ` Dave Martin
2019-05-29 12:42 ` Dave Martin
2019-05-29 12:42 ` Dave.Martin
2019-05-29 12:42 ` Dave Martin
2019-05-29 13:23 ` Catalin Marinas
2019-05-29 13:23 ` Catalin Marinas
2019-05-29 13:23 ` Catalin Marinas
2019-05-29 13:23 ` catalin.marinas
2019-05-29 13:23 ` Catalin Marinas
2019-05-29 15:18 ` Dave Martin
2019-05-29 15:18 ` Dave Martin
2019-05-29 15:18 ` Dave Martin
2019-05-29 15:18 ` Dave.Martin
2019-05-29 15:18 ` Dave Martin
2019-05-28 23:33 ` Khalid Aziz
2019-05-28 23:33 ` Khalid Aziz
2019-05-28 23:33 ` Khalid Aziz
2019-05-28 23:33 ` khalid.aziz
2019-05-28 23:33 ` Khalid Aziz
2019-05-29 14:20 ` Catalin Marinas
2019-05-29 14:20 ` Catalin Marinas
2019-05-29 14:20 ` Catalin Marinas
2019-05-29 14:20 ` catalin.marinas
2019-05-29 14:20 ` Catalin Marinas
2019-05-29 19:16 ` Khalid Aziz
2019-05-29 19:16 ` Khalid Aziz
2019-05-29 19:16 ` Khalid Aziz
2019-05-29 19:16 ` khalid.aziz
2019-05-29 19:16 ` Khalid Aziz
2019-05-30 15:11 ` Catalin Marinas
2019-05-30 15:11 ` Catalin Marinas
2019-05-30 15:11 ` Catalin Marinas
2019-05-30 15:11 ` catalin.marinas
2019-05-30 15:11 ` Catalin Marinas
2019-05-30 16:05 ` Khalid Aziz
2019-05-30 16:05 ` Khalid Aziz
2019-05-30 16:05 ` Khalid Aziz
2019-05-30 16:05 ` khalid.aziz
2019-05-30 16:05 ` Khalid Aziz
2019-05-30 16:57 ` Catalin Marinas
2019-05-30 16:57 ` Catalin Marinas
2019-05-30 16:57 ` Catalin Marinas
2019-05-30 16:57 ` catalin.marinas
2019-05-30 16:57 ` Catalin Marinas
2019-05-28 13:05 ` Catalin Marinas
2019-05-28 13:05 ` Catalin Marinas
2019-05-28 13:05 ` Catalin Marinas
2019-05-28 13:05 ` catalin.marinas
2019-05-28 13:05 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 06/17] mm: untag user pointers in do_pages_move Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-22 11:51 ` Catalin Marinas
2019-05-22 11:51 ` Catalin Marinas
2019-05-22 11:51 ` Catalin Marinas
2019-05-22 11:51 ` catalin.marinas
2019-05-22 11:51 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 07/17] mm, arm64: untag user pointers in mm/gup.c Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-22 11:56 ` Catalin Marinas
2019-05-22 11:56 ` Catalin Marinas
2019-05-22 11:56 ` Catalin Marinas
2019-05-22 11:56 ` catalin.marinas
2019-05-22 11:56 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 08/17] mm, arm64: untag user pointers in get_vaddr_frames Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` [PATCH v15 09/17] fs, arm64: untag user pointers in copy_mount_options Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-22 12:09 ` Catalin Marinas
2019-05-22 12:09 ` Catalin Marinas
2019-05-22 12:09 ` Catalin Marinas
2019-05-22 12:09 ` catalin.marinas
2019-05-22 12:09 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 10/17] fs, arm64: untag user pointers in fs/userfaultfd.c Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` [PATCH v15 11/17] drm/amdgpu, arm64: untag user pointers Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-07 16:43 ` Kuehling, Felix
2019-05-07 16:43 ` Kuehling, Felix
2019-05-07 16:43 ` Kuehling, Felix
2019-05-07 16:43 ` Kuehling, Felix
2019-05-07 16:43 ` Felix.Kuehling
2019-05-07 16:43 ` Kuehling, Felix
2019-05-06 16:30 ` [PATCH v15 12/17] drm/radeon, arm64: untag user pointers in radeon_gem_userptr_ioctl Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
[not found] ` <03fe9d923db75cf72678f3ce103838e67390751a.1557160186.git.andreyknvl-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2019-05-07 16:44 ` Kuehling, Felix
2019-05-07 16:44 ` Kuehling, Felix
2019-05-07 16:44 ` Kuehling, Felix
2019-05-07 16:44 ` Kuehling, Felix
2019-05-07 16:44 ` Felix.Kuehling
2019-05-07 16:44 ` Kuehling, Felix
2019-05-06 16:30 ` [PATCH v15 13/17] IB, arm64: untag user pointers in ib_uverbs_(re)reg_mr() Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 16:30 ` andreyknvl
2019-05-06 16:30 ` Andrey Konovalov
2019-05-06 19:50 ` Jason Gunthorpe
2019-05-06 19:50 ` Jason Gunthorpe
2019-05-06 19:50 ` Jason Gunthorpe
2019-05-06 19:50 ` jgg
2019-05-06 19:50 ` Jason Gunthorpe
2019-05-07 6:33 ` Leon Romanovsky
2019-05-07 6:33 ` Leon Romanovsky
2019-05-07 6:33 ` Leon Romanovsky
2019-05-07 6:33 ` leon
2019-05-07 6:33 ` Leon Romanovsky
2019-05-06 16:31 ` [PATCH v15 14/17] media/v4l2-core, arm64: untag user pointers in videobuf_dma_contig_user_get Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` andreyknvl
2019-05-06 16:31 ` Andrey Konovalov
2019-05-24 13:13 ` Mauro Carvalho Chehab
2019-05-24 13:13 ` Mauro Carvalho Chehab
2019-05-24 13:13 ` Mauro Carvalho Chehab
2019-05-24 13:13 ` mchehab+samsung
2019-05-24 13:13 ` Mauro Carvalho Chehab
2019-05-06 16:31 ` [PATCH v15 15/17] tee, arm64: untag user pointers in tee_shm_register Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` andreyknvl
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` [PATCH v15 16/17] vfio/type1, arm64: untag user pointers in vaddr_get_pfn Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` andreyknvl
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` [PATCH v15 17/17] selftests, arm64: add a selftest for passing tagged pointers to kernel Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` Andrey Konovalov
2019-05-06 16:31 ` andreyknvl
2019-05-06 16:31 ` Andrey Konovalov
2019-05-22 14:16 ` Catalin Marinas
2019-05-22 14:16 ` Catalin Marinas
2019-05-22 14:16 ` Catalin Marinas
2019-05-22 14:16 ` catalin.marinas
2019-05-22 14:16 ` Catalin Marinas
2019-05-31 14:21 ` Andrey Konovalov
2019-05-31 14:21 ` Andrey Konovalov
2019-05-31 14:21 ` Andrey Konovalov
2019-05-31 14:21 ` Andrey Konovalov
2019-05-31 14:21 ` andreyknvl
2019-05-31 14:21 ` Andrey Konovalov
2019-05-31 16:22 ` Catalin Marinas
2019-05-31 16:22 ` Catalin Marinas
2019-05-31 16:22 ` Catalin Marinas
2019-05-31 16:22 ` Catalin Marinas
2019-05-31 16:22 ` catalin.marinas
2019-05-31 16:22 ` Catalin Marinas
2019-05-17 14:49 ` [PATCH v15 00/17] arm64: untag user pointers passed to the kernel Catalin Marinas
2019-05-17 14:49 ` Catalin Marinas
2019-05-17 14:49 ` Catalin Marinas
2019-05-17 14:49 ` catalin.marinas
2019-05-17 14:49 ` Catalin Marinas
2019-05-20 23:53 ` Evgenii Stepanov
2019-05-20 23:53 ` Evgenii Stepanov
2019-05-20 23:53 ` Evgenii Stepanov
2019-05-20 23:53 ` Evgenii Stepanov
2019-05-20 23:53 ` eugenis
2019-05-20 23:53 ` Evgenii Stepanov
2019-05-21 18:29 ` Catalin Marinas
2019-05-21 18:29 ` Catalin Marinas
2019-05-21 18:29 ` Catalin Marinas
2019-05-21 18:29 ` Catalin Marinas
2019-05-21 18:29 ` catalin.marinas
2019-05-21 18:29 ` Catalin Marinas
2019-05-22 0:04 ` Kees Cook
2019-05-22 0:04 ` Kees Cook
2019-05-22 0:04 ` Kees Cook
2019-05-22 0:04 ` Kees Cook
2019-05-22 0:04 ` keescook
2019-05-22 0:04 ` Kees Cook
2019-05-22 10:11 ` Catalin Marinas
2019-05-22 10:11 ` Catalin Marinas
2019-05-22 10:11 ` Catalin Marinas
2019-05-22 10:11 ` Catalin Marinas
2019-05-22 10:11 ` catalin.marinas
2019-05-22 10:11 ` Catalin Marinas
2019-05-22 15:30 ` enh
2019-05-22 15:30 ` enh
2019-05-22 15:30 ` enh
2019-05-22 15:30 ` enh
2019-05-22 15:30 ` enh
2019-05-22 15:30 ` enh
2019-05-22 16:35 ` Catalin Marinas
2019-05-22 16:35 ` Catalin Marinas
2019-05-22 16:35 ` Catalin Marinas
2019-05-22 16:35 ` Catalin Marinas
2019-05-22 16:35 ` catalin.marinas
2019-05-22 16:35 ` Catalin Marinas
2019-05-22 16:58 ` enh
2019-05-22 16:58 ` enh
2019-05-22 16:58 ` enh
2019-05-22 16:58 ` enh
2019-05-22 16:58 ` enh
2019-05-22 16:58 ` enh
2019-05-23 15:21 ` Catalin Marinas
2019-05-23 15:21 ` Catalin Marinas
2019-05-23 15:21 ` Catalin Marinas
2019-05-23 15:21 ` Catalin Marinas
2019-05-23 15:21 ` catalin.marinas
2019-05-23 15:21 ` Catalin Marinas
2019-05-22 20:47 ` Kees Cook
2019-05-22 20:47 ` Kees Cook
2019-05-22 20:47 ` Kees Cook
2019-05-22 20:47 ` Kees Cook
2019-05-22 20:47 ` keescook
2019-05-22 20:47 ` Kees Cook
2019-05-22 23:03 ` Evgenii Stepanov
2019-05-22 23:03 ` Evgenii Stepanov
2019-05-22 23:03 ` Evgenii Stepanov
2019-05-22 23:03 ` Evgenii Stepanov
2019-05-22 23:03 ` eugenis
2019-05-22 23:03 ` Evgenii Stepanov
2019-05-22 23:09 ` enh
2019-05-22 23:09 ` enh
2019-05-22 23:09 ` enh
2019-05-22 23:09 ` enh
2019-05-22 23:09 ` enh
2019-05-22 23:09 ` enh
2019-05-23 7:34 ` Catalin Marinas
2019-05-23 7:34 ` Catalin Marinas
2019-05-23 7:34 ` Catalin Marinas
2019-05-23 7:34 ` Catalin Marinas
2019-05-23 7:34 ` catalin.marinas
2019-05-23 7:34 ` Catalin Marinas
2019-05-23 14:44 ` Catalin Marinas
2019-05-23 14:44 ` Catalin Marinas
2019-05-23 14:44 ` Catalin Marinas
2019-05-23 14:44 ` Catalin Marinas
2019-05-23 14:44 ` catalin.marinas
2019-05-23 14:44 ` Catalin Marinas
2019-05-23 15:44 ` enh
2019-05-23 15:44 ` enh
2019-05-23 15:44 ` enh
2019-05-23 15:44 ` enh
2019-05-23 15:44 ` enh
2019-05-23 15:44 ` enh
2019-05-23 17:00 ` Catalin Marinas
2019-05-23 17:00 ` Catalin Marinas
2019-05-23 17:00 ` Catalin Marinas
2019-05-23 17:00 ` Catalin Marinas
2019-05-23 17:00 ` catalin.marinas
2019-05-23 17:00 ` Catalin Marinas
2019-05-23 16:38 ` Kees Cook
2019-05-23 16:38 ` Kees Cook
2019-05-23 16:38 ` Kees Cook
2019-05-23 16:38 ` Kees Cook
2019-05-23 16:38 ` keescook
2019-05-23 16:38 ` Kees Cook
2019-05-23 17:43 ` Catalin Marinas
2019-05-23 17:43 ` Catalin Marinas
2019-05-23 17:43 ` Catalin Marinas
2019-05-23 17:43 ` Catalin Marinas
2019-05-23 17:43 ` catalin.marinas
2019-05-23 17:43 ` Catalin Marinas
2019-05-23 21:31 ` Kees Cook
2019-05-23 21:31 ` Kees Cook
2019-05-23 21:31 ` Kees Cook
2019-05-23 21:31 ` Kees Cook
2019-05-23 21:31 ` keescook
2019-05-23 21:31 ` Kees Cook
2019-05-24 11:20 ` Catalin Marinas
2019-05-24 11:20 ` Catalin Marinas
2019-05-24 11:20 ` Catalin Marinas
2019-05-24 11:20 ` Catalin Marinas
2019-05-24 11:20 ` catalin.marinas
2019-05-24 11:20 ` Catalin Marinas
2019-05-28 17:02 ` Catalin Marinas
2019-05-28 17:02 ` Catalin Marinas
2019-05-28 17:02 ` Catalin Marinas
2019-05-28 17:02 ` Catalin Marinas
2019-05-28 17:02 ` catalin.marinas
2019-05-28 17:02 ` Catalin Marinas
2019-06-02 5:06 ` Kees Cook
2019-06-02 5:06 ` Kees Cook
2019-06-02 5:06 ` Kees Cook
2019-06-02 5:06 ` Kees Cook
2019-06-02 5:06 ` keescook
2019-06-02 5:06 ` Kees Cook
2019-05-22 19:21 ` Kees Cook
2019-05-22 19:21 ` Kees Cook
2019-05-22 19:21 ` Kees Cook
2019-05-22 19:21 ` Kees Cook
2019-05-22 19:21 ` keescook
2019-05-22 19:21 ` Kees Cook
2019-05-22 20:15 ` enh
2019-05-22 20:15 ` enh
2019-05-22 20:15 ` enh
2019-05-22 20:15 ` enh
2019-05-22 20:15 ` enh
2019-05-22 20:15 ` enh
2019-05-23 15:08 ` Catalin Marinas
2019-05-23 15:08 ` Catalin Marinas
2019-05-23 15:08 ` Catalin Marinas
2019-05-23 15:08 ` Catalin Marinas
2019-05-23 15:08 ` catalin.marinas
2019-05-23 15:08 ` Catalin Marinas
2019-05-23 17:51 ` Khalid Aziz
2019-05-23 17:51 ` Khalid Aziz
2019-05-23 17:51 ` Khalid Aziz
2019-05-23 17:51 ` Khalid Aziz
2019-05-23 17:51 ` khalid.aziz
2019-05-23 17:51 ` Khalid Aziz
2019-05-23 20:11 ` Catalin Marinas
2019-05-23 20:11 ` Catalin Marinas
2019-05-23 20:11 ` Catalin Marinas
2019-05-23 20:11 ` Catalin Marinas
2019-05-23 20:11 ` catalin.marinas
2019-05-23 20:11 ` Catalin Marinas
2019-05-23 21:42 ` Khalid Aziz
2019-05-23 21:42 ` Khalid Aziz
2019-05-23 21:42 ` Khalid Aziz
2019-05-23 21:42 ` Khalid Aziz
2019-05-23 21:42 ` khalid.aziz
2019-05-23 21:42 ` Khalid Aziz
2019-05-23 21:49 ` Khalid Aziz
2019-05-23 21:49 ` Khalid Aziz
2019-05-23 21:49 ` Khalid Aziz
2019-05-23 21:49 ` Khalid Aziz
2019-05-23 21:49 ` khalid.aziz
2019-05-23 21:49 ` Khalid Aziz
2019-05-24 10:11 ` Catalin Marinas
2019-05-24 10:11 ` Catalin Marinas
2019-05-24 10:11 ` Catalin Marinas
2019-05-24 10:11 ` Catalin Marinas
2019-05-24 10:11 ` catalin.marinas
2019-05-24 10:11 ` Catalin Marinas
2019-05-24 14:25 ` Khalid Aziz
2019-05-24 14:25 ` Khalid Aziz
2019-05-24 14:25 ` Khalid Aziz
2019-05-24 14:25 ` Khalid Aziz
2019-05-24 14:25 ` khalid.aziz
2019-05-24 14:25 ` Khalid Aziz
2019-05-28 14:14 ` Andrey Konovalov
2019-05-28 14:14 ` Andrey Konovalov
2019-05-28 14:14 ` Andrey Konovalov
2019-05-28 14:14 ` Andrey Konovalov
2019-05-28 14:14 ` andreyknvl
2019-05-28 14:14 ` Andrey Konovalov
2019-05-29 6:11 ` Christoph Hellwig
2019-05-29 6:11 ` Christoph Hellwig
2019-05-29 6:11 ` Christoph Hellwig
2019-05-29 6:11 ` Christoph Hellwig
2019-05-29 6:11 ` hch
2019-05-29 6:11 ` Christoph Hellwig
2019-05-29 12:12 ` Catalin Marinas
2019-05-29 12:12 ` Catalin Marinas
2019-05-29 12:12 ` Catalin Marinas
2019-05-29 12:12 ` Catalin Marinas
2019-05-29 12:12 ` catalin.marinas
2019-05-29 12:12 ` Catalin Marinas
2019-05-30 17:15 ` Catalin Marinas
2019-05-30 17:15 ` Catalin Marinas
2019-05-30 17:15 ` Catalin Marinas
2019-05-30 17:15 ` Catalin Marinas
2019-05-30 17:15 ` catalin.marinas
2019-05-30 17:15 ` Catalin Marinas
2019-05-31 14:29 ` Andrey Konovalov
2019-05-31 14:29 ` Andrey Konovalov
2019-05-31 14:29 ` Andrey Konovalov
2019-05-31 14:29 ` Andrey Konovalov
2019-05-31 14:29 ` andreyknvl
2019-05-31 14:29 ` Andrey Konovalov
2019-05-31 16:19 ` Catalin Marinas
2019-05-31 16:19 ` Catalin Marinas
2019-05-31 16:19 ` Catalin Marinas
2019-05-31 16:19 ` Catalin Marinas
2019-05-31 16:19 ` catalin.marinas
2019-05-31 16:19 ` Catalin Marinas
2019-05-31 16:24 ` Andrey Konovalov
2019-05-31 16:24 ` Andrey Konovalov
2019-05-31 16:24 ` Andrey Konovalov
2019-05-31 16:24 ` Andrey Konovalov
2019-05-31 16:24 ` andreyknvl
2019-05-31 16:24 ` Andrey Konovalov
2019-05-31 16:46 ` Catalin Marinas
2019-05-31 16:46 ` Catalin Marinas
2019-05-31 16:46 ` Catalin Marinas
2019-05-31 16:46 ` Catalin Marinas
2019-05-31 16:46 ` catalin.marinas
2019-05-31 16:46 ` Catalin Marinas
2019-05-21 18:48 ` Jason Gunthorpe
2019-05-21 18:48 ` Jason Gunthorpe
2019-05-21 18:48 ` Jason Gunthorpe
2019-05-21 18:48 ` jgg
2019-05-21 18:48 ` Jason Gunthorpe
2019-05-22 13:49 ` Dave Martin
2019-05-22 13:49 ` Dave Martin
2019-05-22 13:49 ` Dave Martin
2019-05-22 13:49 ` Dave.Martin
2019-05-22 13:49 ` Dave Martin
2019-05-23 0:20 ` Jason Gunthorpe [this message]
2019-05-23 0:20 ` Jason Gunthorpe
2019-05-23 0:20 ` Jason Gunthorpe
2019-05-23 0:20 ` jgg
2019-05-23 0:20 ` Jason Gunthorpe
2019-05-23 10:42 ` Dave Martin
2019-05-23 10:42 ` Dave Martin
2019-05-23 10:42 ` Dave Martin
2019-05-23 10:42 ` Dave.Martin
2019-05-23 10:42 ` Dave Martin
2019-05-23 16:57 ` Catalin Marinas
2019-05-23 16:57 ` Catalin Marinas
2019-05-23 16:57 ` Catalin Marinas
2019-05-23 16:57 ` catalin.marinas
2019-05-23 16:57 ` Catalin Marinas
2019-05-24 14:23 ` Dave Martin
2019-05-24 14:23 ` Dave Martin
2019-05-24 14:23 ` Dave Martin
2019-05-24 14:23 ` Dave.Martin
2019-05-24 14:23 ` Dave Martin
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