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linux/drivers/nvmem
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Thomas Weißschuh 6bef98bafd nvmem: core: limit cell sysfs permissions to main attribute ones 
The cell sysfs attribute should not provide more access to the nvmem
data than the main attribute itself.
For example if nvme_config::root_only was set, the cell attribute
would still provide read access to everybody.

Mask out permissions not available on the main attribute.

Fixes: 0331c61194 ("nvmem: core: Expose cells through sysfs")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20240628113704.13742-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-03 16:37:51 +02:00
..
layouts nvmem: layouts: sl28vpd: drop driver owner initialization 2024-05-03 07:26:38 +02:00
apple-efuses.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
bcm-ocotp.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
brcm_nvram.c nvmem: brcm_nvram: store a copy of NVRAM content 2023-12-15 13:15:02 +01:00
core.c nvmem: core: limit cell sysfs permissions to main attribute ones 2024-07-03 16:37:51 +02:00
imx-iim.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
imx-ocotp-ele.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
imx-ocotp-scu.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
imx-ocotp.c nvmem: Move and rename ->fixup_cell_info() 2023-12-15 13:30:07 +01:00
internals.h nvmem: core: Expose cells through sysfs 2023-12-15 13:30:08 +01:00
jz4780-efuse.c
Kconfig nvmem: core: Rework layouts to become regular devices 2023-12-15 13:30:07 +01:00
lan9662-otpc.c nvmem: lan9662-otp: Change return type of lan9662_otp_wait_flag_clear() 2022-11-22 18:22:05 +01:00
layerscape-sfp.c nvmem: sfp: Add support for TA 2.1 devices 2022-05-09 15:46:29 +02:00
layouts.c nvmem: layouts: store owner from modules with nvmem_layout_driver_register() 2024-05-03 07:26:38 +02:00
lpc18xx_eeprom.c nvmem: lpc18xx_eeprom: Convert to platform remove callback returning void 2024-05-03 07:26:38 +02:00
lpc18xx_otp.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
Makefile nvmem: core: Rework layouts to become regular devices 2023-12-15 13:30:07 +01:00
meson-efuse.c nvmem: meson-efuse: Fix return value of nvmem callbacks 2024-07-03 16:37:51 +02:00
meson-mx-efuse.c nvmem: meson-mx-efuse: Remove nvmem_device from efuse struct 2024-05-03 07:26:39 +02:00
microchip-otpc.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
mtk-efuse.c nvmem: mtk-efuse: Drop NVMEM device name 2024-03-07 20:21:53 +00:00
mxs-ocotp.c nvmem: Use device_get_match_data() 2023-10-21 19:19:15 +02:00
nintendo-otp.c nvmem: nintendo-otp: Use devm_platform_ioremap_resource() 2023-04-05 19:41:12 +02:00
qcom-spmi-sdam.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
qfprom.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
qoriq-efuse.c nvmem: add new NXP QorIQ eFuse driver 2023-08-23 16:34:01 +02:00
rave-sp-eeprom.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
rmem.c nvmem: rmem: Fix return value of rmem_read() 2024-07-03 16:37:51 +02:00
rockchip-efuse.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
rockchip-otp.c nvmem: rockchip-otp: Add support for RK3588 2023-06-15 13:42:17 +02:00
sc27xx-efuse.c nvmem: sc27xx: fix module autoloading 2024-05-03 07:26:38 +02:00
sec-qfprom.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
snvs_lpgpr.c nvmem: Explicitly include correct DT includes 2023-08-23 16:34:01 +02:00
sprd-efuse.c nvmem: sprd: fix module autoloading 2024-05-03 07:26:38 +02:00
stm32-bsec-optee-ta.c nvmem: stm32: add OP-TEE support for STM32MP13x 2023-02-06 19:06:59 +01:00
stm32-bsec-optee-ta.h nvmem: stm32: add OP-TEE support for STM32MP13x 2023-02-06 19:06:59 +01:00
stm32-romem.c nvmem: stm32: add support for STM32MP25 BSEC to control OTP data 2023-12-15 13:30:08 +01:00
sunplus-ocotp.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
sunxi_sid.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
u-boot-env.c nvmem: u-boot-env: improve coding style 2024-01-04 17:01:13 +01:00
uniphier-efuse.c nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
vf610-ocotp.c nvmem: vf610-ocotp: Use devm_platform_get_and_ioremap_resource() 2023-04-05 19:41:13 +02:00
zynqmp_nvmem.c nvmem: zynqmp_nvmem: Add support to access efuse 2024-03-07 20:21:53 +00:00