[GIT,PULL] firmware: arm_scmi: Fixes for v6.2

Message ID	20230106093909.652657-1-sudeep.holla@arm.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org> From: Sudeep Holla <sudeep.holla@arm.com> To: ARM SoC Team <arm@kernel.org>, SoC Team <soc@kernel.org>, ALKML <linux-arm-kernel@lists.infradead.org> Cc: Sudeep Holla <sudeep.holla@arm.com>, Arnd Bergmann <arnd@kernel.org>, Cristian Marussi <cristian.marussi@arm.com>, Olof Johansson <olof@lixom.net> Subject: [GIT PULL] firmware: arm_scmi: Fixes for v6.2 Date: Fri, 6 Jan 2023 09:39:09 +0000 Message-Id: <20230106093909.652657-1-sudeep.holla@arm.com> MIME-Version: 1.0 Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org
Series	[GIT,PULL] firmware: arm_scmi: Fixes for v6.2 \| expand [GIT,PULL] firmware: arm_scmi: Fixes for v6.2

Message ID

20230106093909.652657-1-sudeep.holla@arm.com (mailing list archive)

State

New, archived

Headers

From: Sudeep Holla <sudeep.holla@arm.com>
To: ARM SoC Team <arm@kernel.org>,
	SoC Team <soc@kernel.org>,
	ALKML <linux-arm-kernel@lists.infradead.org>
Cc: Sudeep Holla <sudeep.holla@arm.com>,
	Arnd Bergmann <arnd@kernel.org>,
	Cristian Marussi <cristian.marussi@arm.com>,
	Olof Johansson <olof@lixom.net>
Subject: [GIT PULL] firmware: arm_scmi: Fixes for v6.2
Date: Fri,  6 Jan 2023 09:39:09 +0000
Message-Id: <20230106093909.652657-1-sudeep.holla@arm.com>
MIME-Version: 1.0
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Content-Type: text/plain; charset="us-ascii"
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 linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org

Series

[GIT,PULL] firmware: arm_scmi: Fixes for v6.2 | expand

Message

Sudeep Holla Jan. 6, 2023, 9:39 a.m. UTC

Hi ARM SoC Team,

Please pull !

Regards,
Sudeep

-->8

The following changes since commit 1b929c02afd37871d5afb9d498426f83432e71c2:

  Linux 6.2-rc1 (2022-12-25 13:41:39 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git tags/scmi-fixes-6.2

for you to fetch changes up to e325285de2cd82fbdcc4df8898e4c6a597674816:

  firmware: arm_scmi: Fix virtio channels cleanup on shutdown (2023-01-03 16:50:44 +0000)

----------------------------------------------------------------
Arm SCMI fixes for v6.2

Few fixes addressing:
1. Possible compromise with the shorter message size from a misbheaving
   SCMI platform firmware. The shmem accesses are now hardened to handle
   the same in fetch_notification and fetch_response.

2. Possible unsafe locking scenario which is solved by calling
   virtio_break_device() before getting hold of vioch->lock.

3. Possible stale error status reported from a previous message being
   used again as it is not cleared.

----------------------------------------------------------------
Cristian Marussi (4):
      firmware: arm_scmi: Clear stale xfer->hdr.status
      firmware: arm_scmi: Harden shared memory access in fetch_response
      firmware: arm_scmi: Harden shared memory access in fetch_notification
      firmware: arm_scmi: Fix virtio channels cleanup on shutdown

 drivers/firmware/arm_scmi/driver.c | 2 ++
 drivers/firmware/arm_scmi/shmem.c  | 9 ++++++---
 drivers/firmware/arm_scmi/virtio.c | 7 ++++++-
 3 files changed, 14 insertions(+), 4 deletions(-)

[GIT,PULL] firmware: arm_scmi: Fixes for v6.2

Pull-request

Message