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833a426cc4
linux/drivers
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Francesco Ruggeri 833a426cc4 ACPI: OSL: only free map once in osl.c 
acpi_os_map_cleanup checks map->refcount outside of acpi_ioremap_lock
before freeing the map. This creates a race condition the can result
in the map being freed more than once.
A panic can be caused by running

for ((i=0; i<10; i++))
do
        for ((j=0; j<100000; j++))
        do
                cat /sys/firmware/acpi/tables/data/BERT >/dev/null
        done &
done

This patch makes sure that only the process that drops the reference
to 0 does the freeing.

Fixes: b7c1fadd6c ("ACPI: Do not use krefs under a mutex in osl.c")
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-11-29 10:31:12 +01:00
..
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acpi ACPI: OSL: only free map once in osl.c 2019-11-29 10:31:12 +01:00
amba ARM updates for 5.4-rc: 2019-10-23 06:26:33 -04:00
android binder: Don't modify VMA bounds in ->mmap handler 2019-10-17 05:58:44 -07:00
ata m68k updates for v5.5 2019-11-25 17:37:30 -08:00
atm atm: remove unneeded semicolon 2019-10-28 16:47:22 -07:00
auxdisplay It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
base Power management updates for 5.5-rc1 2019-11-26 19:06:44 -08:00
bcma bcma: fix block comment style 2019-10-24 08:45:31 +03:00
block Printk changes for 5.5 2019-11-25 19:40:40 -08:00
bluetooth Bluetooth: btbcm: Use the BDADDR_PROPERTY quirk 2019-11-22 13:35:20 +01:00
bus Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
cdrom Printk changes for 5.5 2019-11-25 19:40:40 -08:00
char Some small fixes accumulated for IPMI, nothing major. 2019-11-25 21:41:48 -08:00
clk Fixes for various clk driver issues that happened because of code we 2019-11-08 08:15:01 -08:00
clocksource Merge branch 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 09:43:34 -08:00
connector
counter
cpufreq Power management updates for 5.5-rc1 2019-11-26 19:06:44 -08:00
cpuidle cpuidle: Pass exit latency limit to cpuidle_use_deepest_state() 2019-11-20 11:46:18 +01:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-11-25 20:02:57 -08:00
dax device-dax: Add a driver for "hmem" devices 2019-11-07 15:45:00 +01:00
dca
devfreq PM / devfreq: tegra30: Tune up MCCPU boost-down coefficient 2019-11-06 12:04:01 +09:00
dio
dma dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle 2019-10-23 21:15:21 +05:30
dma-buf dma-buf/resv: fix exclusive fence get 2019-10-10 17:05:20 +02:00
edac EDAC/altera: Use the Altera System Manager driver 2019-11-22 10:18:29 +01:00
eisa
extcon chrome platform changes for v5.4 2019-09-19 14:14:28 -07:00
firewire net: add annotations on hh->hh_len lockless accesses 2019-11-07 20:07:30 -08:00
firmware ACPI updates for 5.5-rc1 2019-11-26 19:25:25 -08:00
fpga Char/Misc driver patches for 5.4-rc1 2019-09-18 11:14:31 -07:00
fsi
gnss
gpio regulator: Updates for v5.5 2019-11-25 21:11:55 -08:00
gpu Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 16:02:40 -08:00
greybus
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2019-11-07 11:54:54 -08:00
hsi HSI changes for the 5.4 series 2019-09-22 12:02:21 -07:00
hv x86/hyperv: Initialize clockevents earlier in CPU onlining 2019-11-15 10:33:49 +01:00
hwmon hwmon: (ina3221) Fix read timeout issue 2019-10-28 18:46:55 -07:00
hwspinlock
hwtracing intel_th: pci: Add Jasper Lake PCH support 2019-11-04 15:01:25 +01:00
i2c i2c: core: fix use after free in of_i2c_notify 2019-11-15 22:01:13 +01:00
i3c i3c: Spelling s/dicovered/discovered/ 2019-10-31 11:24:52 +01:00
ide Printk changes for 5.5 2019-11-25 19:40:40 -08:00
idle
iio Merge branch 'spi-5.5' into spi-next 2019-11-22 19:56:35 +00:00
infiniband net: use rhashtable_lookup() instead of rhashtable_lookup_fast() 2019-11-23 12:15:01 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2019-11-22 16:57:26 -08:00
interconnect interconnect: Add locking in icc_set_tag() 2019-10-20 12:14:41 +03:00
iommu Merge branches 'acpi-utils', 'acpi-platform', 'acpi-video' and 'acpi-doc' 2019-11-26 10:30:49 +01:00
ipack
irqchip ARM: 2019-11-25 18:02:36 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-11-25 20:02:57 -08:00
leds leds: Use all-in-one vtime aware kcpustat accessor 2019-11-21 07:58:48 +01:00
lightnvm lightnvm: print error when target is not found 2019-09-05 13:17:01 -06:00
macintosh Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 15:23:14 -08:00
mailbox mailbox: qcom-apcs: fix max_register value 2019-09-17 00:54:29 -05:00
mcb
md - Fix DM core to disallow stacking request-based DM on partitions. 2019-11-25 11:53:26 -08:00
media media: stkwebcam: fix runtime PM after driver unbind 2019-10-04 14:38:46 +02:00
memory iommu/mediatek: Clean up struct mtk_smi_iommu 2019-08-30 15:57:27 +02:00
memstick memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()' 2019-10-09 11:08:03 +02:00
message
mfd ACPI updates for 5.5-rc1 2019-11-26 19:25:25 -08:00
misc Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 16:02:40 -08:00
mmc ACPI updates for 5.5-rc1 2019-11-26 19:25:25 -08:00
mtd Raw NAND core 2019-11-17 18:34:25 +01:00
mux
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-11-25 20:02:57 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-22 16:27:24 -08:00
ntb NTB: fix IDT Kconfig typos/spellos 2019-09-23 17:20:40 -04:00
nubus nubus: Remove cast to void pointer 2019-10-21 09:08:15 +02:00
nvdimm lib: Uplevel the pmem "region" ida to a global allocator 2019-11-07 15:44:29 +01:00
nvme for-5.5/drivers-post-20191122 2019-11-25 11:18:03 -08:00
nvmem nvmem: core: add nvmem_device_find 2019-10-07 09:47:37 -07:00
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-11-25 20:02:57 -08:00
opp PM / OPP: Support adjusting OPP voltages at runtime 2019-11-11 10:27:15 +05:30
oprofile Printk changes for 5.5 2019-11-25 19:40:40 -08:00
parisc parisc: Remove 32-bit DMA enforcement from sba_iommu 2019-10-14 21:44:26 +02:00
parport Char/Misc driver patches for 5.4-rc1 2019-09-18 11:14:31 -07:00
pci PCI: PM: Fix pci_power_up() 2019-10-15 23:51:36 +02:00
pcmcia pcmcia: remove unused dprintk definition 2019-11-22 07:03:45 +01:00
perf drivers/perf: hisi: update the sccl_id/ccl_id for certain HiSilicon platform 2019-11-07 13:07:55 +00:00
phy phy: ti: phy-gmii-sel: dependency from ti cpsw-switchdev driver 2019-11-20 11:25:24 -08:00
pinctrl pinctrl: stmfx: fix valid_mask init sequence 2019-11-07 10:06:46 +01:00
platform Printk changes for 5.5 2019-11-25 19:40:40 -08:00
pnp
power power: avs: smartreflex: Remove superfluous cast in debugfs_create_file() call 2019-11-13 11:23:51 +01:00
powercap powercap/intel_rapl: add support for Cometlake desktop 2019-11-04 12:31:25 +01:00
pps
ps3
ptp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-16 21:51:42 -08:00
pwm pwm: bcm-iproc: Prevent unloading the driver module while in use 2019-11-08 18:38:06 +01:00
rapidio
ras
regulator Merge branch 'regulator-5.5' into regulator-next 2019-11-22 19:56:20 +00:00
remoteproc remoteproc updates for v5.4 2019-09-22 10:55:08 -07:00
reset reset: fix of_reset_control_get_count kerneldoc comment 2019-10-24 10:26:33 +02:00
rpmsg rpmsg: glink-smem: Name the edge based on parent remoteproc 2019-09-17 15:33:31 -07:00
rtc RTC for 5.4 2019-09-22 11:05:43 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-11-25 20:02:57 -08:00
sbus
scsi Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 15:42:43 -08:00
sfi
sh sh/intc: Use pr_warn instead of pr_warning 2019-10-18 15:01:55 +02:00
siox
slimbus
soc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-16 21:51:42 -08:00
soundwire soundwire: slave: fix scanf format 2019-10-24 16:55:45 +05:30
spi Merge branch 'spi-5.5' into spi-next 2019-11-22 19:56:35 +00:00
spmi
ssb ssb: make array pwr_info_offset static const, makes object smaller 2019-09-13 17:23:18 +03:00
staging Remove VirtualBox guest shared folders filesystem 2019-11-12 15:22:24 -08:00
target SCSI fixes on 20191101 2019-11-07 06:43:18 -07:00
tc
tee tee/shm: untag user pointers in tee_shm_register 2019-09-25 17:51:41 -07:00
thermal cpufreq: Use per-policy frequency QoS 2019-10-21 02:05:21 +02:00
thunderbolt thunderbolt: Drop unnecessary read when writing LC command in Ice Lake 2019-10-08 12:08:21 +03:00
tty Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 16:02:40 -08:00
uio Char/Misc driver patches for 5.4-rc1 2019-09-18 11:14:31 -07:00
usb usb: dwc3: gadget: fix race when disabling ep with cancelled xfers 2019-10-31 18:57:54 +01:00
vfio vfio/type1: Initialize resv_msi_base 2019-10-15 14:07:01 -06:00
vhost vhost/vsock: refuse CID assigned to the guest->host transport 2019-11-14 18:12:18 -08:00
video Printk changes for 5.5 2019-11-25 19:40:40 -08:00
virt virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr 2019-10-10 14:50:32 +02:00
virtio virtio_balloon: fix shrinker count 2019-11-20 02:15:57 -05:00
visorbus
vlynq
vme
w1 w1: ds250x: Fix build error without CRC16 2019-10-10 15:35:41 +02:00
watchdog watchdog: bd70528: Add MODULE_ALIAS to allow module auto loading 2019-11-05 16:58:12 +01:00
xen xen: Fix Kconfig indentation 2019-11-24 11:55:31 +01:00
zorro
Kconfig Staging/IIO driver patches for 5.4-rc1 2019-09-18 11:05:34 -07:00
Makefile Staging/IIO driver patches for 5.4-rc1 2019-09-18 11:05:34 -07:00