linux/drivers/base
Cristian Ciocaltea f5723cfc01
regmap: spi: Reserve space for register address/padding
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>
2022-08-18 15:02:05 +01:00
..
firmware_loader firmware_loader: Replace kmap() with kmap_local_page() 2022-07-28 16:32:56 +02:00
power Driver core / kernfs changes for 6.0-rc1 2022-08-04 11:31:20 -07:00
regmap regmap: spi: Reserve space for register address/padding 2022-08-18 15:02:05 +01:00
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: Fix cache attributes detection in the CPU hotplug path 2022-07-22 10:04:43 +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: Add wait_for_init_devices_probe helper function 2022-06-10 15:57:54 +02:00
bus.c driver: base: fix UAF when driver_attach failed 2022-05-19 19:28:42 +02:00
cacheinfo.c cacheinfo: Use atomic allocation for percpu cache attributes 2022-07-22 10:04:42 +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
core.c Driver core / kernfs changes for 6.0-rc1 2022-08-04 11:31:20 -07:00
cpu.c x86/bugs: Report AMD retbleed vulnerability 2022-06-27 10:33:59 +02:00
dd.c driver core: fix potential deadlock in __driver_attach 2022-06-27 16:43:51 +02:00
devcoredump.c Revert "devcoredump: remove the useless gfp_t parameter in dev_coredumpv and dev_coredumpm" 2022-06-27 16:39:29 +02:00
devres.c devres: fix typos in comments 2022-03-18 14:30:12 +01:00
devtmpfs.c devtmpfs: fix the dangling pointer of global devtmpfsd thread 2022-06-27 16:41:13 +02:00
driver.c driver core: Extend deferred probe timeout on driver registration 2022-05-19 19:32:33 +02:00
firmware.c
hypervisor.c
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
node.c drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist 2022-07-15 17:36:33 +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
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 2022-07-15 17:36:33 +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