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linux/drivers/iio
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Yang Yingliang 14508fe13b iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove 
commit 70c9774e18 upstream.

When ACPI type is ACPI_SMO8500, the data->dready_trig will not be set, the
memory allocated by iio_triggered_buffer_setup() will not be freed, and cause
memory leak as follows:

unreferenced object 0xffff888009551400 (size 512):
  comm "i2c-SMO8500-125", pid 911, jiffies 4294911787 (age 83.852s)
  hex dump (first 32 bytes):
    02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 20 e2 e5 c0 ff ff ff ff  ........ .......
  backtrace:
    [<0000000041ce75ee>] kmem_cache_alloc_trace+0x16d/0x360
    [<000000000aeb17b0>] iio_kfifo_allocate+0x41/0x130 [kfifo_buf]
    [<000000004b40c1f5>] iio_triggered_buffer_setup_ext+0x2c/0x210 [industrialio_triggered_buffer]
    [<000000004375b15f>] kxcjk1013_probe+0x10c3/0x1d81 [kxcjk_1013]

Fix it by remove data->dready_trig condition in probe and remove.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: a25691c1f9 ("iio: accel: kxcjk1013: allow using an external trigger")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Cc: <Stable@vger.kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211025124159.2700301-1-yangyingliang@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-14 10:57:21 +01:00
..
accel iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove 2021-12-14 10:57:21 +01:00
adc iio: ad7768-1: Call iio_trigger_notify_done() on error 2021-12-14 10:57:21 +01:00
afe iio: afe: iio-rescale: Support processed channels 2021-06-03 18:24:13 +01:00
amplifiers iio: amplifiers: hmc425a: Simplify with dev_err_probe() 2020-09-03 19:40:50 +01:00
buffer iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
cdc iio:cdc:ad7150: Fix use of uninitialized ret 2021-04-07 08:36:39 +01:00
chemical iio: chemical: Add driver support for sgp40 2021-08-08 15:19:18 +01:00
common iio: ssp_sensors: add more range checking in ssp_parse_dataframe() 2021-09-18 19:10:55 +01:00
dac iio: ad5770r: make devicetree property reading consistent 2021-11-18 19:16:07 +01:00
dummy iio: dummy: Fix build error when CONFIG_IIO_TRIGGERED_BUFFER is not set 2021-06-13 17:00:17 +01:00
frequency iio: frequency: adf4350: disable reg and clk on error in adf4350_probe() 2021-06-13 17:00:17 +01:00
gyro iio: itg3200: Call iio_trigger_notify_done() on error 2021-12-14 10:57:21 +01:00
health iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
humidity iio: humidity: hdc100x: Add margin to the conversion time 2021-07-24 18:13:02 +01:00
imu iio: imu: st_lsm6dsx: Avoid potential array overflow in st_lsm6dsx_set_odr() 2021-11-25 09:48:29 +01:00
light iio: ltr501: Don't return error code in trigger handler 2021-12-14 10:57:21 +01:00
magnetometer iio: st_sensors: disable regulators after device unregistration 2021-11-18 19:16:46 +01:00
multiplexer iio: multiplexer: iio-mux: Simplify with dev_err_probe() 2020-09-03 19:40:51 +01:00
orientation iio: hid-sensors: bind IIO channels alloc to device object 2021-07-13 18:21:53 +01:00
position iio: hid-sensors: Update header includes 2021-06-16 14:53:13 +01:00
potentiometer iio: potentiometer: Add driver support for AD5110 2021-08-15 15:38:16 +01:00
potentiostat iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() 2021-05-17 13:54:30 +01:00
pressure iio: st_pressure_spi: Add missing entries SPI to device ID table 2021-11-18 19:16:50 +01:00
proximity iio: sx9310: Support ACPI property 2021-07-31 15:15:28 +01:00
resolver iio:resolver:ad2s1200: Drop of_match_ptr protection 2020-09-21 18:41:31 +01:00
temperature iio: ltc2983: fix device probe 2021-08-15 16:58:37 +01:00
test iio/test-format: build kunit tests without structleak plugin 2021-10-06 17:53:36 -06:00
trigger iio: trigger: stm32-timer: fix MODULE_ALIAS 2021-12-14 10:57:20 +01:00
iio_core_trigger.h iio: core-trigger: make iio_device_register_trigger_consumer() an int return 2021-03-11 20:47:02 +00:00
iio_core.h iio: buffer: fix use-after-free for attached_buffers array 2021-03-25 19:13:51 +00:00
industrialio-buffer.c iio: buffer: Fix double-free in iio_buffers_alloc_sysfs_and_mask() 2021-11-18 19:16:53 +01:00
industrialio-configfs.c
industrialio-core.c iio: core: check return value when calling dev_set_name() 2021-11-18 19:16:02 +01:00
industrialio-event.c iio:event: Add timeout event info type 2021-04-07 08:36:36 +01:00
industrialio-sw-device.c
industrialio-sw-trigger.c
industrialio-trigger.c iio: trigger: Fix reference counting 2021-12-14 10:57:20 +01:00
industrialio-triggered-event.c iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
inkern.c iio: core: move @info_exist_lock to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
Kconfig iio:cdc:ad7150: Move driver out of staging. 2021-04-07 08:36:37 +01:00
Makefile iio:cdc:ad7150: Move driver out of staging. 2021-04-07 08:36:37 +01:00
TODO iio: add a TODO 2020-03-08 17:28:53 +00:00