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linux/drivers/base
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Cristian Ciocaltea 15ff1f1784 regmap: spi: Reserve space for register address/padding 
[ Upstream commit f5723cfc01 ]

Currently the max_raw_read and max_raw_write limits in regmap_spi struct
do not take into account the additional size of the transmitted register
address and padding.  This may result in exceeding the maximum permitted
SPI message size, which could cause undefined behaviour, e.g. data
corruption.

Fix regmap_get_spi_bus() to properly adjust the above mentioned limits
by reserving space for the register address/padding as set in the regmap
configuration.

Fixes: f231ff38b7 ("regmap: spi: Set regmap max raw r/w from max_transfer_size")

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220818104851.429479-1-cristian.ciocaltea@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2022-09-15 10:47:12 +02:00
..
firmware_loader firmware_loader: Fix memory leak in firmware upload 2022-09-08 11:24:02 +02:00
power PM: domains: Ensure genpd_debugfs_dir exists before remove 2022-08-17 15:14:17 +02:00
regmap regmap: spi: Reserve space for register address/padding 2022-09-15 10:47:12 +02:00
test driver core: Simplify async probe test code by using ktime_ms_delta() 2021-12-29 10:57:22 +01:00
arch_numa.c mm: percpu: add generic pcpu_populate_pte() function 2022-01-20 08:52:52 +02:00
arch_topology.c arch_topology: Trace the update thermal pressure 2022-05-06 09:57:38 +02:00
attribute_container.c driver core: attribute_container: fix W=1 warnings 2021-05-14 13:37:10 +02:00
auxiliary.c Documentation/auxiliary_bus: Move the text into the code 2021-12-03 16:41:50 +01:00
base.h driver core: Extend deferred probe timeout on driver registration 2022-05-19 19:32:33 +02:00
bus.c driver: base: fix UAF when driver_attach failed 2022-05-19 19:28:42 +02:00
cacheinfo.c cacheinfo: clear cache_leaves(cpu) in free_cache_attributes() 2021-07-21 17:29:40 +02:00
class.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
component.c component: Add common helper for compare/release functions 2022-02-25 12:16:12 +01:00
container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
core.c PM: runtime: Fix supplier device management during consumer probe 2022-07-01 21:04:15 +02:00
cpu.c x86/bugs: Report AMD retbleed vulnerability 2022-06-27 10:33:59 +02:00
dd.c driver core: Don't probe devices after bus_type.match() probe deferral 2022-09-08 11:24:06 +02:00
devcoredump.c Revert "devcoredump: remove the useless gfp_t parameter in dev_coredumpv and dev_coredumpm" 2022-08-17 15:16:19 +02:00
devres.c devres: fix typos in comments 2022-03-18 14:30:12 +01:00
devtmpfs.c Driver core changes for 5.18-rc1 2022-03-28 12:41:28 -07:00
driver.c driver core: fix driver_set_override() issue with empty strings 2022-09-15 10:47:11 +02:00
firmware.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
hypervisor.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
init.c init: Initialize noop_backing_dev_info early 2022-06-16 10:55:57 +02:00
isa.c bus: Make remove callback return void 2021-07-21 11:53:42 +02:00
Kconfig devtmpfs: mount with noexec and nosuid 2021-12-30 13:54:42 +01:00
Makefile driver core: Add sysfs support for physical location of a device 2022-04-27 09:51:57 +02:00
map.c driver: base: Prefer unsigned int to bare use of unsigned 2021-07-21 17:30:09 +02:00
memory.c mm/memory-failure: disable unpoison once hw error happens 2022-06-16 19:11:32 -07:00
module.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
node.c drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist 2022-08-17 15:16:06 +02:00
physical_location.c driver core: location: Add "back" as a possible output for panel 2022-05-19 19:28:32 +02:00
physical_location.h driver core: Add sysfs support for physical location of a device 2022-04-27 09:51:57 +02:00
pinctrl.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform-msi.c platform-msi: Simplify platform device MSI code 2021-12-16 22:22:19 +01:00
platform.c Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
property.c USB / Thunderbolt changes for 5.19-rc1 2022-06-03 11:17:49 -07:00
soc.c base: soc: Make soc_device_match() simpler and easier to read 2022-03-18 14:28:07 +01:00
swnode.c software node: fix wrong node passed to find nargs_prop 2021-12-22 18:26:18 +01:00
syscore.c syscore: Use pm_pr_dbg() for syscore_{suspend,resume}() 2020-09-08 13:32:06 +02:00
topology.c drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist 2022-08-17 15:16:06 +02:00
trace.c devres: Enable trace events 2021-06-15 17:14:36 +02:00
trace.h devres: Enable trace events 2021-06-15 17:14:36 +02:00
transport_class.c scsi: drivers: base: Propagate errors through the transport component 2020-01-15 22:55:37 -05:00