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linux/drivers
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Henry Willard 924383edf4 cpufreq: governor: Avoid accessing invalid governor_data 
commit 2a3eb51e30 upstream.

If cppc_cpufreq.ko is deleted at the same time that tuned-adm is
changing profiles, there is a small chance that a race can occur
between cpufreq_dbs_governor_exit() and cpufreq_dbs_governor_limits()
resulting in a system failure when the latter tries to use
policy->governor_data that has been freed by the former.

This patch uses gov_dbs_data_mutex to synchronize access.

Fixes: e788892ba3 (cpufreq: governor: Get rid of governor events)
Signed-off-by: Henry Willard <henry.willard@oracle.com>
[ rjw: Subject, minor white space adjustment ]
Cc: 4.8+ <stable@vger.kernel.org> # 4.8+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-09 19:55:58 +02:00
..
accessibility
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
acpi
ACPI / EC: Use ec_no_wakeup on more Thinkpad X1 Carbon 6th systems
2018-08-24 13:09:20 +02:00
amba
ARM: amba: Don't read past the end of sysfs "driver_override" buffer
2018-05-01 12:58:21 -07:00
android
ANDROID: binder: prevent transactions into own process.
2018-05-01 12:58:20 -07:00
ata
libahci: Fix possible Spectre-v1 pmp indexing in ahci_led_store()
2018-08-24 13:09:00 +02:00
atm
atm: zatm: Fix potential Spectre v1
2018-07-22 14:28:43 +02:00
auxdisplay
auxdisplay: fix broken menu
2018-07-03 11:24:56 +02:00
base
PM / clk: signedness bug in of_pm_clk_add_clks()
2018-09-05 09:26:42 +02:00
bcma
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
block
drivers/block/zram/zram_drv.c: fix bug storing backing_dev
2018-09-09 19:55:58 +02:00
bluetooth
Bluetooth: hci_serdev: Init hci_uart proto_lock to avoid oops
2018-08-15 18:12:49 +02:00
bus
drivers/perf: arm-ccn: don't log to dmesg in event_init
2018-08-03 07:50:31 +02:00
cdrom
cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status
2018-09-05 09:26:42 +02:00
char
tpm: Return the actual size when receiving an unsupported command
2018-09-05 09:26:41 +02:00
clk
clk: rockchip: fix clk_i2sout parent selection bits on rk3399
2018-09-05 09:26:42 +02:00
clocksource
clocksource/drivers/imx-tpm: Correct some registers operation flow
2018-06-21 04:02:40 +09:00
connector
…
cpufreq
cpufreq: governor: Avoid accessing invalid governor_data
2018-09-09 19:55:58 +02:00
cpuidle
cpuidle: powernv: Fix promotion from snooze if next state disabled
2018-07-03 11:24:51 +02:00
crypto
crypto: vmx - Use skcipher for ctr fallback
2018-09-05 09:26:23 +02:00
dax
dev-dax: check_vma: ratelimit dev_info-s
2018-08-24 13:09:08 +02:00
dca
…
devfreq
PM / devfreq: Fix potential NULL pointer dereference in governor_store
2018-04-12 12:32:13 +02:00
dio
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dma
dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()
2018-08-24 13:09:08 +02:00
dma-buf
dma-buf: remove redundant initialization of sg_table
2018-06-05 11:41:57 +02:00
edac
EDAC: Add missing MEM_LRDDR4 entry in edac_mem_types[]
2018-08-24 13:08:55 +02:00
eisa
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extcon
extcon: Release locking when sending the notification of connector state
2018-09-09 19:55:56 +02:00
firewire
firewire-ohci: work around oversized DMA reads on JMicron controllers
2018-04-26 11:02:03 +02:00
firmware
fw_cfg: fix driver remove
2018-08-17 21:01:11 +02:00
fmc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fpga
fpga-manager: altera-ps-spi: preserve nCONFIG state
2018-05-01 12:58:24 -07:00
fsi
drivers/fsi/scom: Remove reset before every putscom
2017-08-28 17:15:16 +02:00
gpio
gpiolib-acpi: make sure we trigger edge events at least once on boot
2018-09-05 09:26:32 +02:00
gpu
drm/i915/userptr: reject zero user_size
2018-09-09 19:55:53 +02:00
hid
HID: wacom: Correct touch maximum XY of 2nd-gen Intuos
2018-08-24 13:09:11 +02:00
hsi
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hv
Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind()
2018-09-09 19:55:56 +02:00
hwmon
hwmon: (nct6775) Fix potential Spectre v1
2018-09-05 09:26:40 +02:00
hwspinlock
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hwtracing
intel_th: Use correct device when freeing buffers
2018-06-05 11:41:59 +02:00
i2c
i2c/mux, locking/core: Annotate the nested rt_mutex usage
2018-09-05 09:26:29 +02:00
ide
cdrom: do not call check_disk_change() inside cdrom_open()
2018-05-30 07:52:34 +02:00
idle
intel_idle: Graceful probe failure when MWAIT is disabled
2018-08-09 12:16:39 +02:00
iio
iio: ad9523: Fix return value for ad952x_store()
2018-09-09 19:55:56 +02:00
infiniband
RDMA/rxe: Set wqe->status correctly if an unexpected response is received
2018-09-09 19:55:54 +02:00
input
Input: synaptics-rmi4 - fix axis-swap behavior
2018-08-24 13:08:56 +02:00
iommu
iommu/arm-smmu: Error out only if not enough context interrupts
2018-09-05 09:26:34 +02:00
ipack
…
irqchip
irqchip/ls-scfg-msi: Map MSIs in the iommu
2018-08-03 07:50:24 +02:00
isdn
isdn: Disable IIOCDBGVAR
2018-08-22 07:46:11 +02:00
leds
leds: pm8058: Silence pointer to integer size warning
2018-03-19 08:42:50 +01:00
lightnvm
lightnvm: pblk: warn in case of corrupted write buffer
2018-08-03 07:50:25 +02:00
macintosh
drivers: macintosh: rack-meter: really fix bogus memsets
2018-05-30 07:52:27 +02:00
mailbox
mailbox: xgene-slimpro: Fix potential NULL pointer dereference
2018-09-09 19:55:54 +02:00
mcb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
md
dm crypt: don't decrease device limits
2018-09-09 19:55:55 +02:00
media
media: Revert "[media] tvp5150: fix pad format frame height"
2018-09-09 19:55:53 +02:00
memory
memory: tegra: Apply interrupts mask per SoC
2018-08-03 07:50:38 +02:00
memstick
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
message
scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo()
2018-05-25 16:17:47 +02:00
mfd
mfd: hi655x: Fix regmap area declared size for hi655x
2018-09-09 19:55:58 +02:00
misc
vmw_balloon: fix VMCI use when balloon built into kernel
2018-09-09 19:55:57 +02:00
mmc
mmc: renesas_sdhi_internal_dmac: fix #define RST_RESERVED_BITS
2018-09-09 19:55:53 +02:00
mtd
mtd: dataflash: Use ULL suffix for 64-bit constants
2018-08-24 13:09:04 +02:00
mux
mux: core: fix double get_device()
2018-01-17 09:45:27 +01:00
net
libertas: fix suspend and resume for SDIO connected cards
2018-09-09 19:55:53 +02:00
nfc
NFC: pn533: Fix wrong GFP flag usage
2018-08-24 13:09:06 +02:00
ntb
ntb_transport: Fix bug with max_mw_size parameter
2018-04-26 11:02:13 +02:00
nubus
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nvdimm
linvdimm, pmem: Preserve read-only setting for pmem devices
2018-07-03 11:24:58 +02:00
nvme
nvme-pci: add a memory barrier to nvme_dbbuf_update_and_check_event
2018-09-05 09:26:36 +02:00
nvmem
nvmem: Don't let a NULL cell_id for nvmem_cell_get() crash us
2018-08-24 13:09:14 +02:00
of
of: platform: stop accessing invalid dev in of_platform_device_destroy
2018-07-03 11:24:52 +02:00
oprofile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
parisc
parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
2018-05-30 07:52:28 +02:00
parport
parport_pc: Add support for WCH CH382L PCI-E single parallel port card.
2018-04-08 14:26:31 +02:00
pci
PCI: pciehp: Fix unprotected list iteration in IRQ handler
2018-08-24 13:09:23 +02:00
pcmcia
PCMCIA / PM: Avoid noirq suspend aborts during suspend-to-idle
2018-05-30 07:52:39 +02:00
perf
drivers/perf: xgene_pmu: Fix IOB SLOW PMU parser error
2018-08-24 13:08:59 +02:00
phy
phy: phy-mtk-tphy: use auto instead of force to bypass utmi signals
2018-08-15 18:12:48 +02:00
pinctrl
pinctrl: freescale: off by one in imx1_pinconf_group_dbg_show()
2018-09-05 09:26:39 +02:00
platform
platform/x86: ideapad-laptop: Apply no_hw_rfkill to Y20-15IKBM, too
2018-09-05 09:26:36 +02:00
pnp
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
power
power: generic-adc-battery: check for duplicate properties copied from iio channels
2018-09-05 09:26:42 +02:00
powercap
…
pps
drivers/pps: use surrounding "if PPS" to remove numerous dependency checks
2017-09-08 18:26:51 -07:00
ps3
…
ptp
ptp: fix missing break in switch
2018-07-25 11:25:10 +02:00
pwm
pwm: lpss: platform: Save/restore the ctrl register over a suspend/resume
2018-07-03 11:25:03 +02:00
rapidio
drivers/rapidio/devices/rio_mport_cdev.c: fix resource leak in error handling path in 'rio_dma_transfer()'
2017-12-14 09:53:08 +01:00
ras
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
regulator
regulator: Don't return or expect -errno from of_map_mode()
2018-08-03 07:50:40 +02:00
remoteproc
remoteproc: qcom: Fix potential device node leaks
2018-06-21 04:02:48 +09:00
reset
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rpmsg
rpmsg: smd: do not use mananged resources for endpoints and channels
2018-07-03 11:24:59 +02:00
rtc
rtc: omap: fix potential crash on power off
2018-09-09 19:55:57 +02:00
s390
s390/qdio: reset old sbal_state flags
2018-09-05 09:26:40 +02:00
sbus
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
scsi
scsi: core: Avoid that SCSI device removal through sysfs triggers a deadlock
2018-09-05 09:26:41 +02:00
sfi
x86/boot: Fix memremap() related build failure
2017-07-20 11:37:58 +02:00
sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sn
…
soc
soc: imx: gpc: restrict register range for regmap access
2018-08-24 13:09:19 +02:00
spi
spi: cadence: Change usleep_range() to udelay(), for atomic context
2018-09-09 19:55:53 +02:00
spmi
spmi: pmic-arb: Move the ownership check to irq_chip callback
2017-08-28 13:52:22 +02:00
ssb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
staging
media: staging: omap4iss: Include asm/cacheflush.h after generic includes
2018-09-05 09:26:28 +02:00
target
iscsi target: fix session creation failure handling
2018-09-05 09:26:41 +02:00
tc
…
tee
tee: check shm references are consistent in offset/size
2018-06-21 04:02:54 +09:00
thermal
thermal: exynos: fix setting rising_threshold for Exynos5433
2018-08-03 07:50:37 +02:00
thunderbolt
thunderbolt: Prevent crash when ICM firmware is not running
2018-04-24 09:36:29 +02:00
tty
uart: fix race between uart_put_char() and uart_shutdown()
2018-09-09 19:55:56 +02:00
uio
uio_hv_generic: check that host supports monitor page
2018-04-12 12:32:19 +02:00
usb
usb: gadget: f_uac2: fix endianness of 'struct cntrl_*_lay3'
2018-09-05 09:26:26 +02:00
uwb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
vfio
vfio/type1: Fix task tracking for QEMU vCPU hotplug
2018-08-03 07:50:23 +02:00
vhost
vhost: reset metadata cache when initializing new IOTLB
2018-08-22 07:46:09 +02:00
video
backlight: pwm_bl: Don't use GPIOF_* with gpiod_get_direction
2018-08-03 07:50:38 +02:00
virt
virt: Convert to using %pOF instead of full_name
2017-08-29 08:52:51 -05:00
virtio
virtio_balloon: fix another race between migration and ballooning
2018-08-06 16:20:49 +02:00
vlynq
…
vme
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
w1
1wire: family module autoload fails because of upper/lower case mismatch.
2018-07-03 11:24:47 +02:00
watchdog
watchdog: da9063: Fix updating timeout value
2018-08-03 07:50:24 +02:00
xen
xen/scsiback: add error handling for xenbus_printf
2018-08-24 13:09:01 +02:00
zorro
zorro: Set up z->dev.dma_mask for the DMA API
2018-05-30 07:52:30 +02:00
Kconfig
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Makefile
usb: build drivers/usb/common/ when USB_SUPPORT is set
2018-02-25 11:07:53 +01:00