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Du Cheng cde4e338c2 drivers: video: fbcon: fix NULL dereference in fbcon_cursor() 
commit 01faae5193d6190b7b3aa93dae43f514e866d652 upstream.

add null-check on function pointer before dereference on ops->cursor

Reported-by: syzbot+b67aaae8d3a927f68d20@syzkaller.appspotmail.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Du Cheng <ducheng2@gmail.com>
Link: https://lore.kernel.org/r/20210312081421.452405-1-ducheng2@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-07 14:47:44 +02:00
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accessibility
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acpi
ACPI: scan: Use unique number for instance_no
2021-03-30 14:35:28 +02:00
amba
amba: Fix resource leak for drivers without .remove
2021-03-04 10:26:32 +01:00
android
binder: add flag to clear buffer on txn complete
2020-12-30 11:51:35 +01:00
ata
ata: ahci_brcm: Add back regulators management
2021-03-04 10:26:23 +01:00
atm
atm: idt77252: fix null-ptr-dereference
2021-03-30 14:35:21 +02:00
auxdisplay
auxdisplay: ht16k33: Fix refresh rate handling
2021-03-04 10:26:30 +01:00
base
PM: runtime: Fix ordering in pm_runtime_get_suppliers()
2021-04-07 14:47:42 +02:00
bcma
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block
xen-blkback: don't leak persistent grants from xen_blkbk_map()
2021-03-30 14:35:30 +02:00
bluetooth
Bluetooth: hci_h5: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for btrtl
2021-03-07 12:20:44 +01:00
bus
bus: omap_l3_noc: mark l3 irqs as IRQF_NO_THREAD
2021-03-30 14:35:24 +02:00
cdrom
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char
tpm, tpm_tis: Decorate tpm_get_timeouts() with request_locality()
2021-03-09 11:09:36 +01:00
clk
clk: aspeed: Fix APLL calculate formula from ast2600-A2
2021-03-04 10:26:34 +01:00
clocksource
clocksource/drivers/mxs_timer: Add missing semicolon when DEBUG is defined
2021-03-04 10:26:29 +01:00
connector
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counter
counter: stm32-timer-cnt: fix ceiling write max value
2021-03-24 11:26:43 +01:00
cpufreq
cpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev
2021-03-30 14:35:21 +02:00
cpuidle
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crypto
crypto: sun4i-ss - initialize need_fallback
2021-03-04 10:26:45 +01:00
dax
device-dax/core: Fix memory leak when rmmod dax.ko
2020-12-30 11:51:46 +01:00
dca
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devfreq
PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out
2020-10-01 13:17:14 +02:00
dio
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dma
dmaengine: hsu: disable spurious interrupt
2021-03-04 10:26:28 +01:00
dma-buf
dmabuf: fix use-after-free of dmabuf's file->f_inode
2021-01-12 20:16:23 +01:00
edac
EDAC/amd64: Fix PCI component registration
2020-12-30 11:51:36 +01:00
eisa
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extcon
extcon: Fix error handling in extcon_dev_register
2021-04-07 14:47:43 +02:00
firewire
firewire: nosy: Fix a use-after-free bug in nosy_ioctl()
2021-04-07 14:47:43 +02:00
firmware
firmware/efi: Fix a use after bug in efi_mem_reserve_persistent
2021-03-24 11:26:45 +01:00
fpga
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fsi
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gnss
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gpio
gpiolib: acpi: Add missing IRQF_ONESHOT
2021-03-30 14:35:21 +02:00
gpu
drm/amdgpu: check alignment on CPU page for bo map
2021-04-07 14:47:42 +02:00
greybus
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hid
HID: logitech-dj: add support for the new lightspeed connection iteration
2021-03-17 17:03:43 +01:00
hsi
HSI: Fix PM usage counter unbalance in ssi_hw_init
2021-03-04 10:26:26 +01:00
hv
Drivers: hv: vmbus: Avoid use-after-free in vmbus_onoffer_rescind()
2021-03-04 10:26:24 +01:00
hwmon
hwmon: (pwm-fan) Ensure that calculation doesn't discard big period values
2021-01-19 18:26:15 +01:00
hwspinlock
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hwtracing
stm class: Fix module init return on allocation failure
2021-01-27 11:47:50 +01:00
i2c
i2c: rcar: optimize cacheline to minimize HW race condition
2021-03-17 17:03:41 +01:00
i3c
i3c master: fix missing destroy_workqueue() on error in i3c_master_register
2021-01-06 14:48:40 +01:00
ide
scsi: ide: Do not set the RQF_PREEMPT flag for sense requests
2021-01-12 20:16:09 +01:00
idle
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iio
iio: hid-sensor-temperature: Fix issues of timestamp channel
2021-03-24 11:26:43 +01:00
infiniband
RDMA/cxgb4: Fix adapter LE hash errors while destroying ipv6 listening server
2021-03-30 14:35:28 +02:00
input
Input: applespi - don't wait for responses to commands indefinitely.
2021-03-17 17:03:44 +01:00
interconnect
interconnect: qcom: qcs404: Remove GPU and display RPM IDs
2020-12-16 10:56:56 +01:00
iommu
iommu/amd: Fix performance counter initialization
2021-03-17 17:03:43 +01:00
ipack
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irqchip
irqchip/ingenic: Add support for the JZ4760
2021-03-30 14:35:22 +02:00
isdn
misdn: dsp: select CONFIG_BITREVERSE
2021-01-19 18:26:15 +01:00
leds
leds: trigger: fix potential deadlock with libata
2021-02-03 23:25:58 +01:00
lightnvm
lightnvm: fix memory leak when submit fails
2021-01-27 11:47:53 +01:00
macintosh
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mailbox
mailbox: avoid timer start from callback
2020-10-29 09:57:53 +01:00
mcb
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md
dm ioctl: fix out of bounds array access when no devices
2021-03-30 14:35:24 +02:00
media
media: rc: compile rc-cec.c into rc-core
2021-03-17 17:03:40 +01:00
memory
memory: ti-aemif: Drop child node when jumping out loop
2021-03-04 10:26:14 +01:00
memstick
memstick: r592: Fix error return in r592_probe()
2020-12-30 11:51:18 +01:00
message
scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()
2020-11-05 11:43:25 +01:00
mfd
mfd: wm831x-auxadc: Prevent use after free in wm831x_auxadc_read_irq()
2021-03-04 10:26:33 +01:00
misc
habanalabs: Call put_pid() when releasing control device
2021-03-30 14:35:22 +02:00
mmc
mmc: cqhci: Fix random crash when remove mmc module/card
2021-03-17 17:03:48 +01:00
mtd
mtd: spi-nor: hisi-sfc: Put child node np on error path
2021-03-04 10:26:48 +01:00
mux
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net
net: wan/lmc: unregister device when no matching device is found
2021-04-07 14:47:41 +02:00
nfc
nfc: s3fwrn5: Release the nfc firmware
2020-12-30 11:51:26 +01:00
ntb
NTB: hw: amd: fix an issue about leak system resources
2020-10-29 09:58:00 +01:00
nubus
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nvdimm
libnvdimm/dimm: Avoid race between probe and available_slots_show()
2021-02-10 09:25:30 +01:00
nvme
nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a Samsung PM1725a
2021-03-30 14:35:22 +02:00
nvmem
nvmem: core: skip child nodes not matching binding
2021-03-04 10:26:37 +01:00
of
of/fdt: Make sure no-map does not remove already reserved regions
2021-03-04 10:26:28 +01:00
opp
opp: Reduce the size of critical section in _opp_table_kref_release()
2020-11-18 19:20:21 +01:00
oprofile
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parisc
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parport
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pci
PCI: rpadlpar: Fix potential drc_name corruption in store functions
2021-03-24 11:26:43 +01:00
pcmcia
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perf
drivers/perf: thunderx2_pmu: Fix memory resource error handling
2020-10-29 09:57:30 +01:00
phy
phy: rockchip-emmc: emmc_phy_init() always return 0
2021-03-04 10:26:36 +01:00
pinctrl
pinctrl: rockchip: fix restore error in resume
2021-04-07 14:47:43 +02:00
platform
platform/x86: intel-vbtn: Stop reporting SW_DOCK events
2021-03-30 14:35:23 +02:00
pnp
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power
power: reset: at91-sama5d2_shdwc: fix wkupdbc mask
2021-03-04 10:26:28 +01:00
powercap
powercap: restrict energy meter to root access
2020-11-10 21:13:20 +01:00
pps
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ps3
powerpc/ps3: use dma_mapping_error()
2020-12-30 11:51:26 +01:00
ptp
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pwm
pwm: rockchip: rockchip_pwm_probe(): Remove superfluous clk_unprepare()
2021-03-04 10:26:36 +01:00
rapidio
rapidio: fix the missed put_device() for rio_mport_add_riodev
2020-10-29 09:57:53 +01:00
ras
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regulator
regulator: qcom-rpmh: Correct the pmic5_hfsmps515 buck
2021-03-30 14:35:22 +02:00
remoteproc
remoteproc: qcom: Fix potential NULL dereference in adsp_init_mmio()
2020-12-30 11:51:24 +01:00
reset
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rpmsg
rpmsg: glink: Use complete_all for open states
2020-11-05 11:43:20 +01:00
rtc
rtc: s5m: select REGMAP_I2C
2021-03-04 10:26:29 +01:00
s390
s390/dasd: fix hanging IO request during DASD driver unbind
2021-03-17 17:03:48 +01:00
sbus
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scsi
scsi: qla2xxx: Fix broken #endif placement
2021-04-07 14:47:40 +02:00
sfi
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sh
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siox
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slimbus
slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI
2020-12-30 11:51:13 +01:00
soc
soc: aspeed: snoop: Add clock control logic
2021-03-04 10:26:16 +01:00
soundwire
soundwire: cadence: fix ACK/NAK handling
2021-03-04 10:26:36 +01:00
spi
spi: stm32: make spurious and overrun interrupts visible
2021-03-17 17:03:42 +01:00
spmi
spmi: spmi-pmic-arb: Fix hw_irq overflow
2021-03-04 10:26:49 +01:00
ssb
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staging
staging: rtl8192e: Change state information from u16 to u8
2021-04-07 14:47:44 +02:00
target
scsi: target: core: Prevent underflow for service actions
2021-03-17 17:03:45 +01:00
tc
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tee
tee: optee: replace might_sleep with cond_resched
2021-02-03 23:25:58 +01:00
thermal
thermal/core: Add NULL pointer check before using cooling device stats
2021-04-07 14:47:40 +02:00
thunderbolt
thunderbolt: Fix use-after-free in remove_unplugged_switch()
2020-12-11 13:23:29 +01:00
tty
vt/consolemap: do font sum unsigned
2021-03-07 12:20:44 +01:00
uio
uio: Fix use-after-free in uio_unregister_device()
2020-11-18 19:20:29 +01:00
usb
usb: dwc2: Prevent core suspend when port connection flag is 0
2021-04-07 14:47:44 +02:00
vfio
vfio/nvlink: Add missing SPAPR_TCE_IOMMU depends
2021-04-07 14:47:43 +02:00
vhost
vhost: Fix vhost_vq_reset()
2021-04-07 14:47:39 +02:00
video
drivers: video: fbcon: fix NULL dereference in fbcon_cursor()
2021-04-07 14:47:44 +02:00
virt
virt: vbox: Do not use wait_event_interruptible when called from kernel context
2021-03-04 10:26:10 +01:00
virtio
virtio_ring: Fix two use after free bugs
2020-12-30 11:51:29 +01:00
visorbus
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vlynq
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vme
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w1
w1: mxc_w1: Fix timeout resolution problem leading to bus error
2020-11-05 11:43:25 +01:00
watchdog
watchdog: mei_wdt: request stop on unregister
2021-03-04 10:26:47 +01:00
xen
xen/events: avoid handling the same event on two cpus at the same time
2021-03-17 17:03:58 +01:00
zorro
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Kconfig
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Makefile
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