From: Hanjun Guo <guohanjun@huawei.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>,
Linux ACPI <linux-acpi@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Mika Westerberg" <mika.westerberg@linux.intel.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Sudeep Holla" <sudeep.holla@kernel.org>,
linux-arm-kernel@lists.infradead.org,
"Ard Biesheuvel" <ardb@kernel.org>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
linux-efi@vger.kernel.org, "Will Deacon" <will@kernel.org>,
"Robin Murphy" <robin.murphy@arm.com>,
"Joerg Roedel (AMD)" <joro@8bytes.org>,
"Mark Pearson" <mpearson-lenovo@squebb.ca>,
"Derek J. Clark" <derekjohn.clark@gmail.com>,
"Hans de Goede" <hansg@kernel.org>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
platform-driver-x86@vger.kernel.org,
"David Rhodes" <david.rhodes@cirrus.com>,
"Richard Fitzgerald" <rf@opensource.cirrus.com>,
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"Takashi Iwai" <tiwai@suse.com>,
linux-sound@vger.kernel.org,
"Shenghao Ding" <shenghao-ding@ti.com>,
"Kevin Lu" <kevin-lu@ti.com>, "Baojun Xu" <baojun.xu@ti.com>,
"Sen Wang" <sen@ti.com>,
"Vijendar Mukunda" <Vijendar.Mukunda@amd.com>,
"Venkata Prasad Potturu" <venkataprasad.potturu@amd.com>,
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"Mark Brown" <broonie@kernel.org>,
"Cezary Rojewski" <cezary.rojewski@intel.com>,
"Peter Ujfalusi" <peter.ujfalusi@linux.intel.com>,
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"Kai Vehmanen" <kai.vehmanen@linux.intel.com>,
"Pierre-Louis Bossart" <pierre-louis.bossart@linux.dev>,
"Binbin Zhou" <zhoubinbin@loongson.cn>,
"Andreas Noever" <andreas.noever@gmail.com>,
"Mika Westerberg" <westeri@kernel.org>,
"Yehezkel Bernat" <YehezkelShB@gmail.com>
Subject: Re: [PATCH v1 02/17] ACPI: amba: Switch to use acpi_bus_get_primary_device()
Date: Tue, 22 Sep 2026 14:07:09 +0800 [thread overview]
Message-ID: <7eeeb332-ece6-4396-5871-91ece6d6f18e@huawei.com> (raw)
In-Reply-To: <3362405.5fSG56mABF@rafael.j.wysocki>
On 2026/9/22 3:46, Rafael J. Wysocki wrote:
> From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
>
> Replace acpi_get_first_physical_node() that is slated for removal
> with acpi_bus_get_primary_device() that takes a reference to the
> device it is about to return.
>
> This addresses a potential use-after-free that may occur if the
> device returned by acpi_get_first_physical_node() is removed right
> after dropping its ACPI companion's physical_node_lock in that
> function.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
> drivers/acpi/arm64/amba.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Thanks
Hanjun
next prev parent reply other threads:[~2026-09-22 6:07 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 19:45 [PATCH v1 00/17] ACPI: Replace acpi_get_first_physical_node() with acpi_bus_get_primary_device() Rafael J. Wysocki
2026-09-21 19:45 ` [PATCH v1 01/17] ACPI: bus: Use acpi/acpi_bus.h without CONFIG_ACPI Rafael J. Wysocki
2026-09-22 9:50 ` Sudeep Holla
2026-09-22 9:51 ` Rafael J. Wysocki (Intel)
2026-09-21 19:46 ` [PATCH v1 02/17] ACPI: amba: Switch to use acpi_bus_get_primary_device() Rafael J. Wysocki
2026-09-22 6:07 ` Hanjun Guo [this message]
2026-09-22 9:51 ` Sudeep Holla
2026-09-21 19:47 ` [PATCH v1 03/17] efi/dev-path-parser: " Rafael J. Wysocki
2026-09-21 19:47 ` [PATCH v1 04/17] iommu/arm-smmu-v3: " Rafael J. Wysocki
2026-09-21 19:48 ` [PATCH v1 05/17] platform/x86: yogabook: " Rafael J. Wysocki
2026-09-22 12:50 ` Ilpo Järvinen
2026-09-22 15:31 ` Hans de Goede
2026-09-22 15:34 ` Mark Pearson
2026-09-21 19:49 ` [PATCH v1 06/17] platform/x86: serdev_helpers: " Rafael J. Wysocki
2026-09-22 12:48 ` Ilpo Järvinen
2026-09-22 16:58 ` Hans de Goede
2026-09-21 19:49 ` [PATCH v1 07/17] platform/x86: apple-gmux: " Rafael J. Wysocki
2026-09-22 16:58 ` Hans de Goede
2026-09-21 19:50 ` [PATCH v1 08/17] platform/x86: x86-android-tablets: Use acpi_bus_get_primary_device() Rafael J. Wysocki
2026-09-22 12:46 ` Ilpo Järvinen
2026-09-22 16:59 ` Hans de Goede
2026-09-21 19:51 ` [PATCH v1 09/17] thunderbolt: Switch to use acpi_bus_get_primary_device() Rafael J. Wysocki
2026-09-22 14:30 ` Mika Westerberg
2026-09-21 19:51 ` [PATCH v1 10/17] ALSA: hda: cs35l41: " Rafael J. Wysocki
2026-09-21 19:52 ` [PATCH v1 11/17] ALSA: hda: aw88399: " Rafael J. Wysocki
2026-09-22 12:26 ` Marco Giunta
2026-09-21 19:53 ` [PATCH v1 12/17] ALSA: hda: tas2781: " Rafael J. Wysocki
2026-09-21 19:53 ` [PATCH v1 13/17] ASoC: amd: acp-es8336: " Rafael J. Wysocki
2026-09-22 8:19 ` Mark Brown
2026-09-21 19:54 ` [PATCH v1 14/17] ASoC: amd: acp3x-es83xx: " Rafael J. Wysocki
2026-09-22 8:19 ` Mark Brown
2026-09-21 19:55 ` [PATCH v1 15/17] ASoC: intel: boards: " Rafael J. Wysocki
2026-09-22 8:02 ` Cezary Rojewski
2026-09-22 8:20 ` Mark Brown
2026-09-21 19:55 ` [PATCH v1 16/17] ASoC: loongson: " Rafael J. Wysocki
2026-09-22 8:20 ` Mark Brown
2026-09-21 19:56 ` [PATCH v1 17/17] ACPI: bus: Drop acpi_get_first_physical_node() Rafael J. Wysocki
2026-09-22 9:53 ` Sudeep Holla
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