From: Will Deacon <will@kernel.org>
To: Nick Desaulniers <ndesaulniers@google.com>,
Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Will Deacon <will@kernel.org>,
linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Jeremy Linton <jeremy.linton@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Enrico Weigelt <info@metux.net>, Ard Biesheuvel <ardb@kernel.org>,
Allison Randal <allison@lohutok.net>
Subject: Re: [PATCH v2] arm64: acpi: fix UBSAN warning
Date: Wed, 10 Jun 2020 12:21:08 +0100 [thread overview]
Message-ID: <159178566875.41592.7975510364023488303.b4-ty@kernel.org> (raw)
In-Reply-To: <20200608203818.189423-1-ndesaulniers@google.com>
On Mon, 8 Jun 2020 13:38:17 -0700, Nick Desaulniers wrote:
> Will reported a UBSAN warning:
>
> UBSAN: null-ptr-deref in arch/arm64/kernel/smp.c:596:6
> member access within null pointer of type 'struct acpi_madt_generic_interrupt'
> CPU: 0 PID: 0 Comm: swapper Not tainted 5.7.0-rc6-00124-g96bc42ff0a82 #1
> Call trace:
> dump_backtrace+0x0/0x384
> show_stack+0x28/0x38
> dump_stack+0xec/0x174
> handle_null_ptr_deref+0x134/0x174
> __ubsan_handle_type_mismatch_v1+0x84/0xa4
> acpi_parse_gic_cpu_interface+0x60/0xe8
> acpi_parse_entries_array+0x288/0x498
> acpi_table_parse_entries_array+0x178/0x1b4
> acpi_table_parse_madt+0xa4/0x110
> acpi_parse_and_init_cpus+0x38/0x100
> smp_init_cpus+0x74/0x258
> setup_arch+0x350/0x3ec
> start_kernel+0x98/0x6f4
>
> [...]
Applied to arm64 (for-next/core), thanks!
[1/1] arm64: acpi: fix UBSAN warning
https://git.kernel.org/arm64/c/a194c33f45f8
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
_______________________________________________
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:[~2020-06-10 11:21 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-21 10:09 arm64/acpi: NULL dereference reports from UBSAN at boot Will Deacon
2020-05-21 17:37 ` Lorenzo Pieralisi
2020-05-26 20:21 ` Will Deacon
2020-05-27 13:41 ` Lorenzo Pieralisi
2020-06-01 7:05 ` Will Deacon
2020-06-01 21:51 ` Nick Desaulniers
2020-06-01 21:57 ` Ard Biesheuvel
2020-06-01 22:19 ` Nick Desaulniers
2020-06-01 22:28 ` Ard Biesheuvel
2020-06-01 23:18 ` [PATCH] ACPICA: fix UBSAN warning using __builtin_offsetof Nick Desaulniers
2020-06-01 23:37 ` Peter Collingbourne
2020-06-01 23:48 ` Nick Desaulniers
2020-06-02 0:02 ` Kaneda, Erik
2020-06-02 18:46 ` Nick Desaulniers
2020-06-08 14:51 ` Will Deacon
2020-06-08 20:29 ` Nick Desaulniers
2020-06-08 20:38 ` [PATCH v2] arm64: acpi: fix UBSAN warning Nick Desaulniers
2020-06-09 17:46 ` Lorenzo Pieralisi
2020-06-09 19:50 ` Jeremy Linton
2020-06-10 11:21 ` Will Deacon [this message]
2020-06-08 23:20 ` [PATCH] ACPICA: fix UBSAN warning using __builtin_offsetof Kaneda, Erik
2020-06-10 23:06 ` Kaneda, Erik
2020-06-10 23:29 ` Nick Desaulniers
2020-06-10 23:46 ` Jung-uk Kim
2020-06-11 16:45 ` [Devel] " Kaneda, Erik
2020-06-11 17:06 ` Nick Desaulniers
2020-06-16 21:39 ` Kaneda, Erik
2020-06-10 23:31 ` Jung-uk Kim
2020-05-22 8:07 ` arm64/acpi: NULL dereference reports from UBSAN at boot Hanjun Guo
2020-05-22 9:43 ` Hanjun Guo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=159178566875.41592.7975510364023488303.b4-ty@kernel.org \
--to=will@kernel.org \
--cc=allison@lohutok.net \
--cc=ardb@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=info@metux.net \
--cc=jeremy.linton@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=ndesaulniers@google.com \
--cc=stable@vger.kernel.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox