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linux/drivers/nvmem
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Nicholas Johnson 4d60b72514 nvmem: check for NULL reg_read and reg_write before dereferencing 
commit 3c91ef69a3e94f78546b246225ed573fbf1735b4 upstream.

Return -EPERM if reg_read is NULL in bin_attr_nvmem_read() or if
reg_write is NULL in bin_attr_nvmem_write().

This prevents NULL dereferences such as the one described in
03cd45d2e219 ("thunderbolt: Prevent crash if non-active NVMem file is
read")

Signed-off-by: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200310132257.23358-10-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-08 09:08:42 +02:00
..
bcm-ocotp.c
nvmem: bcm-ocotp: Add ACPI support to BCM OCOTP
2019-01-31 16:24:14 +01:00
core.c
nvmem: core: fix memory abort in cleanup path
2020-02-11 04:35:21 -08:00
imx-iim.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 460
2019-06-19 17:09:09 +02:00
imx-ocotp-scu.c
nvmem: imx: add i.MX8QM platform support
2019-08-18 12:56:53 +02:00
imx-ocotp.c
nvmem: imx-ocotp: reset error status on probe
2019-12-31 16:44:42 +01:00
Kconfig
nvmem: Broaden the selection of NVMEM_SNVS_LPGPR
2019-06-19 19:35:51 +02:00
lpc18xx_eeprom.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
lpc18xx_otp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Makefile
nvmem: imx: add i.MX8 nvmem driver
2019-06-19 19:35:51 +02:00
meson-efuse.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295
2019-06-05 17:36:38 +02:00
meson-mx-efuse.c
nvmem: meson-mx-efuse: allow reading data smaller than word_size
2019-08-18 12:56:52 +02:00
mtk-efuse.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
mxs-ocotp.c
nvmem: mxs-ocotp: update MODULE_AUTHOR() email address
2019-08-18 12:56:52 +02:00
nvmem-sysfs.c
nvmem: check for NULL reg_read and reg_write before dereferencing
2020-04-08 09:08:42 +02:00
nvmem.h
nvmem: core: add NVMEM_SYSFS Kconfig
2019-04-25 19:44:33 +02:00
qfprom.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
rave-sp-eeprom.c
nvmem: rave-sp-eeprom: Remove VLA usage
2018-07-07 17:30:46 +02:00
rockchip-efuse.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295
2019-06-05 17:36:38 +02:00
sc27xx-efuse.c
nvmem: sc27xx: Convert nvmem offset to block index
2019-01-31 16:24:14 +01:00
snvs_lpgpr.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
stm32-romem.c
nvmem: stm32: add support for STM32MP15 BSEC to control OTP data
2019-04-25 19:43:12 +02:00
sunxi_sid.c
nvmem: sunxi_sid: fix A64 SID controller support
2019-08-18 12:56:52 +02:00
uniphier-efuse.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
vf610-ocotp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
zynqmp_nvmem.c
drivers: Defer probe if firmware is not ready
2019-03-18 13:45:27 +01:00