From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: Patch "acpi, nfit: check for the correct event code in notifications" has been added to the 4.8-stable tree Date: Thu, 20 Oct 2016 17:53:58 +0200 Message-ID: <147697883817697@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Return-path: Sender: stable-owner@vger.kernel.org To: vishal.l.verma@intel.com, dan.j.williams@intel.com, gregkh@linuxfoundation.org, linda.knippers@hpe.com, linux-acpi@vger.kernel.org Cc: stable@vger.kernel.org, stable-commits@vger.kernel.org List-Id: linux-acpi@vger.kernel.org This is a note to let you know that I've just added the patch titled acpi, nfit: check for the correct event code in notifications to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: acpi-nfit-check-for-the-correct-event-code-in-notifications.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From c09f12186d6b03b798832d95289af76495990192 Mon Sep 17 00:00:00 2001 From: Vishal Verma Date: Fri, 19 Aug 2016 14:40:58 -0600 Subject: acpi, nfit: check for the correct event code in notifications From: Vishal Verma commit c09f12186d6b03b798832d95289af76495990192 upstream. Commit 209851649dc4 "acpi: nfit: Add support for hot-add" added support for _FIT notifications, but it neglected to verify the notification event code matches the one in the ACPI spec for "NFIT Update". Currently there is only one code in the spec, but once additional codes are added, older kernels (without this fix) will misbehave by assuming all event notifications are for an NFIT Update. Fixes: 209851649dc4 ("acpi: nfit: Add support for hot-add") Cc: Cc: Dan Williams Reported-by: Linda Knippers Signed-off-by: Vishal Verma Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/nfit/core.c | 3 +++ drivers/acpi/nfit/nfit.h | 4 ++++ 2 files changed, 7 insertions(+) --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -2689,6 +2689,9 @@ static void acpi_nfit_notify(struct acpi dev_dbg(dev, "%s: event: %d\n", __func__, event); + if (event != NFIT_NOTIFY_UPDATE) + return; + device_lock(dev); if (!dev->driver) { /* dev->driver may be null if we're being removed */ --- a/drivers/acpi/nfit/nfit.h +++ b/drivers/acpi/nfit/nfit.h @@ -78,6 +78,10 @@ enum { NFIT_ARS_TIMEOUT = 90, }; +enum nfit_root_notifiers { + NFIT_NOTIFY_UPDATE = 0x80, +}; + struct nfit_spa { struct list_head list; struct nd_region *nd_region; Patches currently in stable-queue which might be from vishal.l.verma@intel.com are queue-4.8/acpi-nfit-check-for-the-correct-event-code-in-notifications.patch