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f35713ba67
linux/drivers
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Xiyu Yang f35713ba67 staging: gasket: Fix mapping refcnt leak when register/store fails 
[ Upstream commit e3436ce60c ]

gasket_sysfs_register_store() invokes get_mapping(), which returns a
reference of the specified gasket_sysfs_mapping object to "mapping" with
increased refcnt.

When gasket_sysfs_register_store() returns, local variable "mapping"
becomes invalid, so the refcount should be decreased to keep refcount
balanced.

The reference counting issue happens in one exception handling path of
gasket_sysfs_register_store(). When gasket_dev is NULL, the function
forgets to decrease the refcnt increased by get_mapping(), causing a
refcnt leak.

Fix this issue by calling put_mapping() when gasket_dev is NULL.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Link: https://lore.kernel.org/r/1587618941-13718-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-25 15:32:53 +02:00
..
accessibility
acpi ACPI: GED: use correct trigger type field in _Exx / _Lxx handling 2020-06-22 09:05:09 +02:00
amba
android binder: take read mode of mmap_sem in binder_alloc_free_page() 2020-05-02 17:25:48 +02:00
ata libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set 2020-04-17 10:48:52 +02:00
atm fore200e: Fix incorrect checks of NULL pointer dereference 2020-02-24 08:34:42 +01:00
auxdisplay
base x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation 2020-06-10 21:35:01 +02:00
bcma bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA 2020-01-27 14:51:09 +01:00
block ps3disk: use the default segment boundary 2020-06-25 15:32:49 +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 cdrom: respect device capabilities during opening action 2020-01-04 19:13:12 +01:00
char pci:ipmi: Move IPMI PCI class id defines to pci_ids.h 2020-06-22 09:05:23 +02:00
clk clk: clk-flexgen: fix clock-critical handling 2020-06-25 15:32:50 +02:00
clocksource clocksource: dw_apb_timer_of: Fix missing clockevent timers 2020-06-22 09:05:11 +02:00
connector
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: stm32/crc32 - fix multi-instance 2020-06-22 09:05:18 +02:00
dax
dca
devfreq Revert "PM / devfreq: Modify the device name as devfreq(X) for sysfs" 2020-03-05 16:42:18 +01:00
dio
dma PCI: Move Rohm Vendor ID to generic list 2020-06-22 09:05:23 +02:00
dma-buf
edac EDAC/amd64: Set grain per DIMM 2020-03-11 14:14:45 +01:00
eisa
extcon extcon: axp288: Add wakeup support 2020-04-13 10:45:03 +02:00
firewire net: add annotations on hh->hh_len lockless accesses 2020-01-09 10:19:09 +01:00
firmware firmware: qcom_scm: fix bogous abuse of dma-direct internals 2020-06-25 15:32:53 +02:00
fmc
fpga
fsi fsi: sbefifo: Don't fail operations when in SBE IPL state 2020-01-27 14:51:00 +01:00
gnss gnss: sirf: fix error return code in sirf_probe() 2020-06-22 09:05:28 +02:00
gpio gpio: dwapb: Append MODULE_ALIAS for platform driver 2020-06-25 15:32:53 +02:00
gpu drm: bridge: adv7511: Extend list of audio sample rates 2020-06-22 09:05:09 +02:00
hid HID: i2c-hid: add Schneider SCL142ALM to descriptor override 2020-06-07 13:17:53 +02:00
hsi
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/k10temp, x86/amd_nb: Consolidate shared device IDs 2020-06-22 09:05:23 +02:00
hwspinlock
hwtracing intel_th: pci: Add Elkhart Lake CPU support 2020-03-25 08:06:11 +01:00
i2c i2c: pxa: clear all master action bits in i2c_pxa_stop_message() 2020-06-25 15:32:49 +02:00
ide ide: serverworks: potential overflow in svwks_set_pio_mode() 2020-02-24 08:34:49 +01:00
idle
iio iio: bmp280: fix compensation of humidity 2020-06-25 15:32:49 +02:00
infiniband RDMA/mlx5: Add init2init as a modify command 2020-06-25 15:32:50 +02:00
input Input: synaptics - add a second working PNP_ID for Lenovo T470s 2020-06-22 09:05:00 +02:00
iommu iommu: Fix reference count leak in iommu_group_alloc. 2020-06-03 08:19:41 +02:00
ipack ipack: tpci200: fix error return code in tpci200_register() 2020-05-27 17:37:43 +02:00
irqchip irqchip/mbigen: Free msi_desc on device teardown 2020-04-23 10:30:13 +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 leds: pca963x: Fix open-drain initialization 2020-02-24 08:34:35 +01:00
lightnvm lightnvm: pblk: fix lock order in pblk_rb_tear_down_check 2020-01-27 14:50:45 +01:00
macintosh drivers/macintosh: Fix memleak in windfarm_pm112 driver 2020-06-22 09:05:29 +02:00
mailbox mailbox: qcom-apcs: fix max_register value 2020-01-27 14:51:14 +01:00
mcb
md dm mpath: switch paths in dm_blk_ioctl() code path 2020-06-25 15:32:49 +02:00
media media: ov5640: fix use of destroyed mutex 2020-06-22 09:05:27 +02:00
memory memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20 2020-01-27 14:50:13 +01:00
memstick
message scsi: mptfusion: Fix double fetch bug in ioctl 2020-01-23 08:21:28 +01:00
mfd mfd: wm8994: Fix driver operation if loaded as modules 2020-06-25 15:32:50 +02:00
misc PCI: Add Synopsys endpoint EDDA Device ID 2020-06-22 09:05:24 +02:00
mmc mmc: sdhci-esdhc-imx: fix the mask for tuning start point 2020-06-22 09:05:20 +02:00
mtd mtd: rawnand: pasemi: Fix the probe error path 2020-06-22 09:05:30 +02:00
mux
net yam: fix possible memory leak in yam_init_driver 2020-06-25 15:32:51 +02:00
nfc NFC: st21nfca: add missed kfree_skb() in an error path 2020-06-10 21:34:59 +02:00
ntb NTB: Fix the default port and peer numbers for legacy drivers 2020-06-25 15:32:51 +02:00
nubus
nvdimm libnvdimm: Fix endian conversion issues 2020-06-07 13:17:53 +02:00
nvme nvme: refine the Qemu Identify CNS quirk 2020-06-22 09:05:16 +02:00
nvmem nvmem: qfprom: remove incorrect write support 2020-06-10 21:35:00 +02:00
of of: overlay: kmemleak in dup_and_fixup_symbol_prop() 2020-04-23 10:30:14 +02:00
opp OPP: Fix missing debugfs supply directory for OPPs 2020-01-27 14:50:04 +01:00
oprofile
parisc
parport parport: load lowlevel driver if ports not found 2019-12-31 16:36:01 +01:00
pci PCI: vmd: Filter resource type bits from shadow register 2020-06-25 15:32:51 +02:00
pcmcia
perf drivers/perf: hisi: Fix typo in events attribute array 2020-06-22 09:05:14 +02:00
phy phy: mapphone-mdm6600: Fix write timeouts with shorter GPIO toggle interval 2020-03-11 14:15:10 +01:00
pinctrl pinctrl: rza1: Fix wrong array assignment of rza1l_swio_entries 2020-06-25 15:32:53 +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
power power: supply: bq24257_charger: Replace depends on REGMAP_I2C with select 2020-06-25 15:32:47 +02:00
powercap
pps
ps3
ptp ptp: free ptp device pin descriptors properly 2020-01-23 08:21:35 +01:00
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
regulator regulator: rk808: Lower log level on optional GPIOs being not available 2020-02-24 08:34:40 +01:00
remoteproc remoteproc: Fix IDR initialisation in rproc_alloc() 2020-06-25 15:32:47 +02:00
reset reset: uniphier: Add SCSSI reset control for each channel 2020-02-24 08:34:44 +01:00
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 s390/cio: avoid duplicated 'ADD' uevents 2020-04-29 16:31:13 +02:00
sbus
scsi scsi: qedf: Fix crash when MFW calls for protocol stats while function is still probing 2020-06-25 15:32:53 +02:00
sfi
sh
siox
slimbus
sn
soc soc: imx: gpc: fix power up sequencing 2020-04-23 10:30:17 +02:00
soundwire soundwire: intel: fix PDI/stream mapping for Bulk 2019-12-31 16:35:55 +01:00
spi PCI: Move Rohm Vendor ID to generic list 2020-06-22 09:05:23 +02:00
spmi
ssb
staging staging: gasket: Fix mapping refcnt leak when register/store fails 2020-06-25 15:32:53 +02:00
target scsi: target/iblock: fix WRITE SAME zeroing 2020-05-06 08:13:31 +02:00
tc
tee tee: optee: Fix compilation issue with nommu 2020-02-05 14:43:50 +00:00
thermal thermal: brcmstb_thermal: Do not use DT coefficients 2020-03-05 16:42:22 +01:00
thunderbolt thunderbolt: Drop duplicated get_switch_at_route() 2020-05-27 17:37:40 +02:00
tty serial: 8250: Fix max baud limit in generic 8250 port 2020-06-25 15:32:49 +02:00
uio uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol() 2020-02-24 08:34:37 +01:00
usb usblp: poison URBs upon disconnect 2020-06-25 15:32:49 +02:00
uwb
vfio vfio/pci: fix memory leaks in alloc_perm_bits() 2020-06-25 15:32:50 +02:00
vhost vhost/vsock: fix packet delivery order to monitoring devices 2020-05-27 17:37:32 +02:00
video backlight: lp855x: Ensure regulators are disabled on probe failure 2020-06-25 15:32:48 +02:00
virt
virtio virtio_balloon: prevent pfn array overflow 2020-02-24 08:34:54 +01:00
visorbus visorbus: fix uninitialized variable access 2020-02-24 08:34:47 +01:00
vlynq
vme vme: bridges: reduce stack usage 2020-02-24 08:34:47 +01:00
w1 w1: omap-hdq: cleanup to add missing newline for some dev_dbg 2020-06-22 09:05:30 +02:00
watchdog watchdog: reset last_hw_keepalive time at start 2020-04-29 16:31:09 +02:00
xen xen/pvcalls-back: test for errors when calling backend_connect() 2020-06-22 09:05:09 +02:00
zorro
Kconfig
Makefile