x-kernel@vger.kernel.org;
> lorenzo.pieral...@arm.com; mark.rutl...@arm.com; p...@google.com;
> r...@rjwysocki.net; w...@kernel.org; sta...@vger.kernel.org; linux-
> a...@vger.kernel.org; de...@acpica.org
> Subject: Re: [Devel] Re: [PATCH] ACPICA: fix UBSAN warning using
> __builtin_offset
On Thu, Jun 11, 2020 at 9:45 AM Kaneda, Erik wrote:
>
> > From: Jung-uk Kim
> >
> > Actually, I think we should let platform-specific acfoo.h decide what to
> > do here, i.e.,
>
> That's a better solution. For Linux, it would look something like this:
>
> --- a/include/acpi/actypes.h
> +++
x-kernel@vger.kernel.org;
> lorenzo.pieral...@arm.com; mark.rutl...@arm.com; p...@google.com;
> r...@rjwysocki.net; w...@kernel.org; sta...@vger.kernel.org; linux-
> a...@vger.kernel.org; de...@acpica.org
> Subject: [Devel] Re: [PATCH] ACPICA: fix UBSAN warning using
> __builtin_offsetof
>
renzo.pieral...@arm.com; mark.rutl...@arm.com;
>>> ndesaulni...@google.com; p...@google.com; r...@rjwysocki.net;
>>> w...@kernel.org; sta...@vger.kernel.org; linux-a...@vger.kernel.org;
>>> de...@acpica.org
>>> Subject: [PATCH] ACPICA: fix UBSAN warning using __builti
gt; w...@kernel.org; sta...@vger.kernel.org; linux-a...@vger.kernel.org;
>> de...@acpica.org
>> Subject: [PATCH] ACPICA: fix UBSAN warning using __builtin_offsetof
>>
>> Will reported UBSAN warnings:
>> UBSAN: null-ptr-deref in drivers/acpi/acpica/tbfadt.c:459:37
>
google.com; r...@rjwysocki.net;
> > w...@kernel.org; sta...@vger.kernel.org; linux-a...@vger.kernel.org;
> > de...@acpica.org
> > Subject: [PATCH] ACPICA: fix UBSAN warning using __builtin_offsetof
> >
> > Will reported UBSAN warnings:
> > UBSAN: null-ptr-d
..@huawei.com; linux-arm-
> ker...@lists.infradead.org; linux-kernel@vger.kernel.org;
> lorenzo.pieral...@arm.com; mark.rutl...@arm.com;
> ndesaulni...@google.com; p...@google.com; r...@rjwysocki.net;
> w...@kernel.org; sta...@vger.kernel.org; linux-a...@vger.kernel.org;
> de...@acpica.o
sts.infradead.org; linux-
> ker...@vger.kernel.org; lorenzo.pieral...@arm.com;
> mark.rutl...@arm.com; p...@google.com; r...@rjwysocki.net;
> w...@kernel.org; sta...@vger.kernel.org; linux-a...@vger.kernel.org;
> de...@acpica.org
> Subject: Re: [PATCH] ACPICA: fix UBSAN warning usin
On Mon, Jun 8, 2020 at 7:51 AM Will Deacon wrote:
>
> Hey Nick,
>
> On Tue, Jun 02, 2020 at 11:46:31AM -0700, Nick Desaulniers wrote:
> > On Mon, Jun 1, 2020 at 5:03 PM Kaneda, Erik wrote:
> > > > Will reported UBSAN warnings:
> > > > UBSAN: null-ptr-deref in drivers/acpi/acpica/tbfadt.c:459:37
Hey Nick,
On Tue, Jun 02, 2020 at 11:46:31AM -0700, Nick Desaulniers wrote:
> On Mon, Jun 1, 2020 at 5:03 PM Kaneda, Erik wrote:
> > > Will reported UBSAN warnings:
> > > UBSAN: null-ptr-deref in drivers/acpi/acpica/tbfadt.c:459:37
> > > UBSAN: null-ptr-deref in arch/arm64/kernel/smp.c:596:6
> >
On Mon, Jun 1, 2020 at 5:03 PM Kaneda, Erik wrote:
>
>
> Hi,
>
> > Will reported UBSAN warnings:
> > UBSAN: null-ptr-deref in drivers/acpi/acpica/tbfadt.c:459:37
> > UBSAN: null-ptr-deref in arch/arm64/kernel/smp.c:596:6
> >
> > Looks like the emulated offsetof macro ACPI_OFFSET is causing these.
@lists.infradead.org; linux-kernel@vger.kernel.org;
> lorenzo.pieral...@arm.com; mark.rutl...@arm.com;
> ndesaulni...@google.com; p...@google.com; r...@rjwysocki.net;
> w...@kernel.org; sta...@vger.kernel.org; linux-a...@vger.kernel.org;
> de...@acpica.org
> Subject: [PATCH] ACPICA:
On Mon, Jun 1, 2020 at 4:37 PM Peter Collingbourne wrote:
>
> On Mon, Jun 1, 2020 at 4:18 PM Nick Desaulniers
> wrote:
> >
> > Will reported UBSAN warnings:
> > UBSAN: null-ptr-deref in drivers/acpi/acpica/tbfadt.c:459:37
> > UBSAN: null-ptr-deref in arch/arm64/kernel/smp.c:596:6
> >
> > Looks
On Mon, Jun 1, 2020 at 4:18 PM Nick Desaulniers wrote:
>
> Will reported UBSAN warnings:
> UBSAN: null-ptr-deref in drivers/acpi/acpica/tbfadt.c:459:37
> UBSAN: null-ptr-deref in arch/arm64/kernel/smp.c:596:6
>
> Looks like the emulated offsetof macro ACPI_OFFSET is causing these. We
> can avoid
Will reported UBSAN warnings:
UBSAN: null-ptr-deref in drivers/acpi/acpica/tbfadt.c:459:37
UBSAN: null-ptr-deref in arch/arm64/kernel/smp.c:596:6
Looks like the emulated offsetof macro ACPI_OFFSET is causing these. We
can avoid this by using the compiler builtin, __builtin_offsetof.
The
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