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2a3eb51e30
linux/drivers
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Henry Willard 2a3eb51e30 cpufreq: governor: Avoid accessing invalid governor_data 
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>
2018-08-16 23:03:29 +02:00
..
accessibility
acpi Power management updates for 4.19-rc1 2018-08-14 13:12:24 -07:00
amba Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-06-06 13:49:25 -07:00
android treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
ata Linux 4.18-rc6 2018-08-05 19:32:09 -06:00
atm atm: zatm: Fix potential Spectre v1 2018-06-30 21:24:18 +09:00
auxdisplay treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
base Power management updates for 4.19-rc1 2018-08-14 13:12:24 -07:00
bcma bcma: Allow selection of this driver when COMPILE_TEST=y 2018-07-18 09:34:19 +02:00
block for-4.19/block-20180812 2018-08-14 10:23:25 -07:00
bluetooth bluetooth: hci_nokia: Don't include linux/unaligned/le_struct.h directly. 2018-06-17 08:38:55 +09:00
bus bus: ti-sysc: Use 2-factor allocator arguments 2018-07-02 04:24:44 -07:00
cdrom cdrom: Use struct scsi_sense_hdr internally 2018-08-02 15:22:39 -06:00
char In reaction to the fixes to address CVE-2018-1108, some Linux 2018-07-28 19:40:06 -07:00
clk Merge branch 'clkdev' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-08-13 19:15:48 -07:00
clocksource Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-08-13 18:28:19 -07:00
connector Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
cpufreq cpufreq: governor: Avoid accessing invalid governor_data 2018-08-16 23:03:29 +02:00
cpuidle ARM: cpuidle: silence error on driver registration failure 2018-06-25 09:33:34 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-08-03 10:09:45 -07:00
dax * fix one ensures that a variable passed in by reference to 2018-07-13 10:54:01 -07:00
dca
devfreq PM / devfreq: rk3399_dmc: Fix duplicated opp table on reload. 2018-07-18 13:58:39 +09:00
dio
dma dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate() 2018-06-28 11:57:21 +05:30
dma-buf
edac treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
eisa
extcon treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
firewire treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
firmware Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-08-13 16:29:35 -07:00
fmc treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
fpga fpga: altera-cvp: Fix an error handling path in 'altera_cvp_probe()' 2018-07-07 16:55:22 +02:00
fsi
gpio This is the bulk of pin control changes for v4.19: 2018-08-14 12:31:27 -07:00
gpu Power management updates for 4.19-rc1 2018-08-14 13:12:24 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2018-07-09 17:16:11 -07:00
hsi
hv treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
hwmon hwmon: (adt7475) Change show functions to return error data correctly 2018-08-10 09:13:01 -07:00
hwspinlock hwspinlock updates for v4.18 2018-06-11 12:09:19 -07:00
hwtracing treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
i2c regmap: Changes for v4.19 2018-08-14 11:51:03 -07:00
ide ide-cd: Remove redundant sense buffer 2018-08-02 15:22:37 -06:00
idle
iio iio: imu: inv_mpu6050: Fix probe() failure on older ACPI based machines 2018-06-24 14:50:52 +01:00
infiniband for-4.19/block-20180812 2018-08-14 10:23:25 -07:00
input m68k updates for 4.19 2018-08-13 09:50:24 -07:00
iommu iommu/dma: Respect bus DMA limit for IOVAs 2018-07-27 19:01:06 +02:00
ipack treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
irqchip irqchip updates for 4.19 2018-08-06 12:45:42 +02:00
isdn Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
leds leds: ns2: Change unsigned to unsigned int 2018-08-06 23:03:12 +02:00
lightnvm block: Add and use op_stat_group() for indexing disk_stat fields. 2018-07-18 08:44:20 -06:00
macintosh powerpc updates for 4.18 2018-06-07 10:23:33 -07:00
mailbox treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
mcb
md Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2018-08-14 11:03:16 -07:00
media media fixes for v4.18-rc8 2018-08-02 16:55:42 -07:00
memory drivers/memory/Kconfig: Add CONFIG_OF dependency 2018-07-31 09:46:06 +02:00
memstick treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
message treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
mfd Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-06-14 16:21:46 +09:00
misc Merge branch 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-08-13 19:58:36 -07:00
mmc mmc: mxcmmc: Fix missing parentheses and brace 2018-07-16 11:45:44 +02:00
mtd spi: Updates for v4.19 2018-08-14 12:01:08 -07:00
mux
net LED updates for 4.19-rc1 2018-08-14 13:07:22 -07:00
nfc NFC: pn533: Fix wrong GFP flag usage 2018-06-25 21:36:45 +08:00
ntb - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
nubus nubus: Set default dma mask for nubus_board devices 2018-07-23 15:07:12 +02:00
nvdimm Linux 4.18-rc6 2018-08-05 19:32:09 -06:00
nvme for-4.19/block-20180812 2018-08-14 10:23:25 -07:00
nvmem nvmem: Don't let a NULL cell_id for nvmem_cell_get() crash us 2018-07-07 17:30:25 +02:00
of Devicetree updates for 4.19: 2018-08-14 12:41:49 -07:00
opp PM / OPP: Update voltage in case freq == old_freq 2018-06-19 15:53:32 +05:30
oprofile treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
parisc dma-mapping updates for 4.18: 2018-06-04 10:58:12 -07:00
parport docs: Fix some broken references 2018-06-15 18:10:01 -03:00
pci Merge branch 'l1tf-final' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-08-14 09:46:06 -07:00
pcmcia treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
perf drivers/perf: xgene_pmu: Fix IOB SLOW PMU parser error 2018-06-18 17:48:42 +01:00
phy phy: mapphone-mdm6600: Fix wrong enum used for status lines 2018-06-29 12:00:22 +05:30
pinctrl This is the bulk of pin control changes for v4.19: 2018-08-14 12:31:27 -07:00
platform Here are the main MIPS changes for 4.19. 2018-08-13 19:24:32 -07:00
pnp media updates for v4.18-rc1 2018-06-07 12:34:37 -07:00
power treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
powercap powercap / idle_inject: Add an idle injection framework 2018-07-02 13:00:24 +02:00
pps
ps3
ptp ptp: fix missing break in switch 2018-07-18 15:25:25 -07:00
pwm pwm: Changes for v4.18-rc1 2018-06-14 16:25:43 +09:00
rapidio treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
ras
regulator Merge branch 'regulator-4.19' into regulator-next 2018-08-10 17:31:24 +01:00
remoteproc treewide: use PHYS_ADDR_MAX to avoid type casting ULLONG_MAX 2018-06-15 07:55:25 +09:00
reset - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
rpmsg rpmsg: smd: do not use mananged resources for endpoints and channels 2018-06-04 12:35:03 -07:00
rtc rtc: fix alarm read and set offset 2018-07-13 10:37:54 +02:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-08-13 19:07:17 -07:00
sbus fix a series of Documentation/ broken file name references 2018-06-15 18:10:01 -03:00
scsi Merge SCSI_IOCTL_SEND_COMMAND cleanup branch. 2018-08-14 10:54:25 -07:00
sfi
sh sh: introduce a sh_cacheop_vaddr helper 2018-08-02 13:54:06 +02:00
siox
slimbus treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
sn
soc Power management updates for 4.19-rc1 2018-08-14 13:12:24 -07:00
soundwire docs: Fix more broken references 2018-06-15 18:11:26 -03:00
spi Merge branch 'spi-4.19' into spi-next 2018-08-10 17:51:52 +01:00
spmi
ssb
staging staging: ashmem: Fix SIGBUS crash when traversing mmaped ashmem pages 2018-08-01 10:08:57 -07:00
target for-4.19/block-20180812 2018-08-14 10:23:25 -07:00
tc
tee
thermal cpufreq: imx6q/thermal: imx: register cooling device depending on OF 2018-07-02 11:26:36 +02:00
thunderbolt thunderbolt: Notify userspace when boot_acl is changed 2018-07-07 17:29:17 +02:00
tty LED updates for 4.19-rc1 2018-08-14 13:07:22 -07:00
uio uio: fix crash after the device is unregistered 2018-07-07 16:57:35 +02:00
usb LED updates for 4.19-rc1 2018-08-14 13:07:22 -07:00
uwb treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
vfio powerpc fixes for 4.18 #4 2018-07-21 16:46:53 -07:00
vhost vhost: reset metadata cache when initializing new IOTLB 2018-08-08 09:44:39 -07:00
video fbdev/efifb: Honour UEFI memory map attributes when mapping the FB 2018-07-16 00:43:12 +02:00
virt treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
virtio virtio_balloon: fix another race between migration and ballooning 2018-07-30 16:45:33 +03:00
visorbus
vlynq
vme
w1 Char/Misc driver patches for 4.18-rc1 2018-06-05 16:20:22 -07:00
watchdog MIPS changes for 4.18 2018-06-12 12:56:02 -07:00
xen xen: fixes for 4.18-rc2 2018-06-23 20:44:11 +08:00
zorro - Introduce arithmetic overflow test helper functions (Rasmus) 2018-06-06 17:27:14 -07:00
Kconfig
Makefile scsi: build scsi_common.o for all scsi passthrough request users 2018-08-02 15:19:48 -06:00