AuxXxilium/linux_dsm_epyc7002
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f88ecccac4
linux_dsm_epyc7002/drivers/iio
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Jonathan Cameron f88ecccac4 iio:health:afe4404 Fix timestamp alignment and prevent data leak. 
One of a class of bugs pointed out by Lars in a recent review.
iio_push_to_buffers_with_timestamp assumes the buffer used is aligned
to the size of the timestamp (8 bytes).  This is not guaranteed in
this driver which uses a 40 byte array of smaller elements on the stack.
As Lars also noted this anti pattern can involve a leak of data to
userspace and that indeed can happen here.  We close both issues by
moving to a suitable structure in the iio_priv() data with alignment
explicitly requested.  This data is allocated with kzalloc so no
data can leak appart from previous readings.

Fixes: 87aec56e27 ("iio: health: Add driver for the TI AFE4404 heart monitor")
Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14 12:32:22 +01:00
..
accel Merge 5.7-rc7 into staging-next 2020-05-25 09:11:19 +02:00
adc Staging/IIO driver patches for 5.8-rc1 2020-06-07 10:45:08 -07:00
afe treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
amplifiers iio: amplifiers: ad8366: add support for HMC1119 Attenuator 2020-03-08 17:28:43 +00:00
buffer iio: buffer: drop devm_iio_kfifo_free() API call 2020-04-19 16:56:38 +01:00
chemical Merge 5.7-rc7 into staging-next 2020-05-25 09:11:19 +02:00
common Second set of new device support, cleanups and features for IIO in the 5.8 cycle 2020-05-15 16:03:28 +02:00
dac Staging/IIO driver patches for 5.8-rc1 2020-06-07 10:45:08 -07:00
dummy iio: dummy_evgen: Fix use after free on error in iio_dummy_evgen_create() 2020-05-20 13:11:41 +01:00
frequency iio: adf4350: Convert to use GPIO descriptor 2019-12-15 11:42:16 +00:00
gyro iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger 2020-05-10 09:35:53 +01:00
health iio:health:afe4404 Fix timestamp alignment and prevent data leak. 2020-06-14 12:32:22 +01:00
humidity iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger 2020-05-10 09:35:53 +01:00
imu Merge 5.7-rc7 into staging-next 2020-05-25 09:11:19 +02:00
light iio: light: gp2ap002: Take runtime PM reference on light read 2020-05-22 17:19:41 +01:00
magnetometer iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger 2020-05-10 09:35:53 +01:00
multiplexer treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
orientation iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger 2020-05-10 09:35:53 +01:00
position iio: position: Add support for Azoteq IQS624/625 angle sensors 2020-03-27 08:25:59 +00:00
potentiometer iio: potentiometer: add a driver for Maxim 5432-5435 2019-08-05 14:25:08 +01:00
potentiostat iio: potentiostat: lmp9100: fix iio_triggered_buffer_{predisable,postenable} positions 2020-03-08 17:28:53 +00:00
pressure iio: bmp280: fix compensation of humidity 2020-05-11 20:19:19 +01:00
proximity iio: proximity: ping: pass reference to IIO device as param to ping_read() 2020-05-21 19:39:25 +01:00
resolver iio: ad2s1200: Drop legacy include 2019-12-15 11:42:15 +00:00
temperature iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger 2020-05-10 09:35:53 +01:00
trigger First set of new IIO device support, features and cleanup for the 5.8 cycle 2020-04-23 11:06:48 +02:00
iio_core_trigger.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
iio_core.h iio: buffer: rename 'read_first_n' callback to 'read' 2019-12-29 15:20:09 +00:00
industrialio-buffer.c iio: buffer: remove attrcount_orig var from sysfs creation 2020-05-16 17:57:15 +01:00
industrialio-configfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-core.c Second set of new device support, cleanups and features for IIO in the 5.8 cycle 2020-05-15 16:03:28 +02:00
industrialio-event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-sw-device.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-sw-trigger.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-trigger.c iio: core: drop devm_iio_trigger_free() API call 2020-04-19 16:56:37 +01:00
industrialio-triggered-event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inkern.c iio: inkern: drop devm_iio_channel_release{_all} API calls 2020-04-19 16:56:37 +01:00
Kconfig iio: position: Add support for Azoteq IQS624/625 angle sensors 2020-03-27 08:25:59 +00:00
Makefile iio: position: Add support for Azoteq IQS624/625 angle sensors 2020-03-27 08:25:59 +00:00
TODO iio: add a TODO 2020-03-08 17:28:53 +00:00