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Steve Cohen 80512b95fc drm: hold gem reference until object is no longer accessed 
commit 8490d6a7e0 upstream.

A use-after-free in drm_gem_open_ioctl can happen if the
GEM object handle is closed between the idr lookup and
retrieving the size from said object since a local reference
is not being held at that point. Hold the local reference
while the object can still be accessed to fix this and
plug the potential security hole.

Signed-off-by: Steve Cohen <cohens@codeaurora.org>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1595284250-31580-1-git-send-email-cohens@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-05 10:06:01 +02:00
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accessibility
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acpi
ACPI: video: Use native backlight on Acer TravelMate 5735Z
2020-07-22 09:32:05 +02:00
amba
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android
binder: Don't use mmput() from shrinker function.
2020-07-29 10:16:54 +02:00
ata
ata/libata: Fix usage of page address by page_address in ata_scsi_mode_select_xlat function
2020-06-30 23:17:13 -04:00
atm
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auxdisplay
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base
regmap: debugfs: check count when read regmap file
2020-07-31 18:37:49 +02:00
bcma
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block
Revert "zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()"
2020-07-22 09:32:10 +02:00
bluetooth
Bluetooth: hci_bcm: fix freeing not-requested IRQ
2020-06-22 09:05:26 +02:00
bus
bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads
2020-04-17 10:48:37 +02:00
cdrom
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char
virtio: virtio_console: add missing MODULE_DEVICE_TABLE() for rproc serial
2020-07-22 09:32:10 +02:00
clk
clk: sprd: return correct type of value for _sprd_pll_recalc_rate
2020-06-25 15:33:00 +02:00
clocksource
clocksource: dw_apb_timer_of: Fix missing clockevent timers
2020-06-22 09:05:11 +02:00
connector
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cpufreq
cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once
2020-05-20 08:18:40 +02:00
cpuidle
cpuidle: Fix three reference count leaks
2020-06-22 09:05:20 +02:00
crypto
crypto: ccp - Release all allocated memory if sha type is invalid
2020-08-05 10:05:59 +02:00
dax
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dca
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devfreq
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dio
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dma
dmaengine: ioat setting ioat timeout as module parameter
2020-07-29 10:16:53 +02:00
dma-buf
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edac
EDAC/amd64: Read back the scrub rate PCI register on F15h
2020-07-09 09:37:09 +02:00
eisa
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extcon
extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()'
2020-06-25 15:33:01 +02:00
firewire
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firmware
drivers/firmware/psci: Fix memory leakage in alloc_init_cpu_groups()
2020-07-29 10:16:46 +02:00
fmc
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fpga
fpga: dfl: fix bug in port reset handshake
2020-07-29 10:16:48 +02:00
fsi
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gnss
gnss: sirf: fix error return code in sirf_probe()
2020-06-22 09:05:28 +02:00
gpio
gpio: arizona: put pm_runtime in case of failure
2020-07-29 10:16:44 +02:00
gpu
drm: hold gem reference until object is no longer accessed
2020-08-05 10:06:01 +02:00
hid
HID: apple: Disable Fn-key key-re-mapping on clone keyboards
2020-07-29 10:16:52 +02:00
hsi
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hv
x86/Hyper-V: Report crash data in die() when panic_on_oops is set
2020-04-23 10:30:17 +02:00
hwmon
hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe()
2020-07-29 10:16:54 +02:00
hwspinlock
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hwtracing
intel_th: Fix a NULL dereference when hub driver is not loaded
2020-07-22 09:32:12 +02:00
i2c
i2c: rcar: always clear ICSAR to avoid side effects
2020-07-29 10:16:50 +02:00
ide
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idle
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iio
iio: imu: adis16400: fix memory leak
2020-08-05 10:05:59 +02:00
infiniband
IB/umem: fix reference count leak in ib_umem_odp_get()
2020-07-29 10:16:47 +02:00
input
Input: synaptics - enable InterTouch for ThinkPad X1E 1st gen
2020-07-29 10:16:53 +02:00
iommu
irqdomain/treewide: Keep firmware node unconditionally allocated
2020-07-29 10:16:46 +02:00
ipack
ipack: tpci200: fix error return code in tpci200_register()
2020-05-27 17:37:43 +02:00
irqchip
irqchip/gic: Atomically update affinity
2020-07-09 09:37:12 +02:00
isdn
PCI: add USR vendor id and use it in r8169 and w6692 driver
2020-06-22 09:05:23 +02:00
leds
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lightnvm
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macintosh
drivers/macintosh: Fix memleak in windfarm_pm112 driver
2020-06-22 09:05:29 +02:00
mailbox
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mcb
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md
dm integrity: fix integrity recalculation that is improperly skipped
2020-07-29 10:16:59 +02:00
media
media: rc: prevent memory leak in cx23888_ir_probe
2020-08-05 10:05:59 +02:00
memory
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memstick
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message
scsi: mptscsih: Fix read sense data size
2020-07-16 08:17:23 +02:00
mfd
mfd: wm8994: Fix driver operation if loaded as modules
2020-06-25 15:32:50 +02:00
misc
misc: atmel-ssc: lock with mutex instead of spinlock
2020-07-22 09:32:12 +02:00
mmc
mmc: sdhci: do not enable card detect interrupt for gpio cd type
2020-07-22 09:32:04 +02:00
mtd
mtd: rawnand: oxnas: Release all devices in the _remove() path
2020-07-22 09:32:07 +02:00
mux
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net
ath9k: release allocated buffer if timed out
2020-08-05 10:06:00 +02:00
nfc
NFC: st21nfca: add missed kfree_skb() in an error path
2020-06-10 21:34:59 +02:00
ntb
NTB: perf: Fix race condition when run with ntb_test
2020-06-25 15:33:03 +02:00
nubus
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nvdimm
libnvdimm: Fix endian conversion issues
2020-06-07 13:17:53 +02:00
nvme
nvme-rdma: assign completion vector correctly
2020-07-16 08:17:23 +02:00
nvmem
nvmem: qfprom: remove incorrect write support
2020-06-10 21:35:00 +02:00
of
of: of_mdio: Correct loop scanning logic
2020-07-22 09:32:03 +02:00
opp
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oprofile
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parisc
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parport
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pci
PCI/ASPM: Disable ASPM on ASMedia ASM1083/1085 PCIe-to-PCI bridge
2020-08-05 10:06:00 +02:00
pcmcia
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perf
drivers/perf: hisi: Fix wrong value for all counters enable
2020-06-25 15:33:04 +02:00
phy
phy: sun4i-usb: fix dereference of pointer phy0 before it is null checked
2020-07-22 09:32:05 +02:00
pinctrl
pinctrl: amd: fix npins for uart0 in kerncz_groups
2020-07-29 10:16:44 +02:00
platform
platform/x86: intel-vbtn: Only blacklist SW_TABLET_MODE on the 9 / "Laptop" chasis-type
2020-06-22 09:05:20 +02:00
pnp
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power
power: supply: smb347-charger: IRQSTAT_D is volatile
2020-06-25 15:32:55 +02:00
powercap
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pps
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ps3
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ptp
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pwm
pwm: img: Call pm_runtime_put() in pm_runtime_get_sync() failed case
2020-06-25 15:32:51 +02:00
rapidio
rapidio: fix an error in get_user_pages_fast() error handling
2020-05-27 17:37:43 +02:00
ras
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regulator
regualtor: pfuze100: correct sw1a/sw2 on pfuze3000
2020-06-30 23:17:10 -04:00
remoteproc
remoteproc: Fix IDR initialisation in rproc_alloc()
2020-06-25 15:32:47 +02:00
reset
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rpmsg
rpmsg: glink: Remove chunk size word align warning
2020-04-13 10:45:16 +02:00
rtc
rtc: 88pm860x: fix possible race condition
2020-04-23 10:30:18 +02:00
s390
scsi: zfcp: Fix panic on ERP timeout for previously dismissed ERP action
2020-06-30 23:17:08 -04:00
sbus
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scsi
scsi: scsi_transport_spi: Fix function pointer check
2020-07-29 10:16:45 +02:00
sfi
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sh
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siox
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slimbus
slimbus: core: Fix mismatch in of_node_get/put
2020-07-22 09:32:07 +02:00
sn
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soc
soc: qcom: rpmh: Dirt can only make you dirtier, not cleaner
2020-07-29 10:16:44 +02:00
soundwire
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spi
spi: mediatek: use correct SPI_CFG2_REG MACRO
2020-07-29 10:16:52 +02:00
spmi
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ssb
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staging
staging: comedi: addi_apci_1564: check INSN_CONFIG_DIGITAL_TRIG shift
2020-07-29 10:16:56 +02:00
target
scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd()
2020-06-25 15:32:59 +02:00
tc
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tee
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thermal
thermal/drivers/cpufreq_cooling: Fix wrong frequency converted from power
2020-07-22 09:32:12 +02:00
thunderbolt
thunderbolt: Drop duplicated get_switch_at_route()
2020-05-27 17:37:40 +02:00
tty
vt: Reject zero-sized screen buffer size.
2020-07-29 10:16:56 +02:00
uio
uio_pdrv_genirq: fix use without device tree and no interrupt
2020-07-22 09:32:11 +02:00
usb
usb: xhci: Fix ASM2142/ASM3142 DMA addressing
2020-07-29 10:16:55 +02:00
uwb
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vfio
vfio/mdev: Fix reference count leak in add_mdev_supported_type
2020-06-25 15:33:01 +02:00
vhost
vhost/vsock: fix packet delivery order to monitoring devices
2020-05-27 17:37:32 +02:00
video
fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins.
2020-07-29 10:16:56 +02:00
virt
virt: vbox: Fix guest capabilities mask check
2020-07-22 09:32:10 +02:00
virtio
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visorbus
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vlynq
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vme
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w1
w1: omap-hdq: cleanup to add missing newline for some dev_dbg
2020-06-22 09:05:30 +02:00
watchdog
watchdog: da9062: No need to ping manually before setting timeout
2020-06-25 15:32:58 +02:00
xen
xen/pvcalls-back: test for errors when calling backend_connect()
2020-06-22 09:05:09 +02:00
zorro
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Kconfig
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Makefile
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