linux-stable/drivers/misc/eeprom
Daniel Okazaki 2af84c46b9 eeprom: at24: fix memory corruption race condition
[ Upstream commit f42c97027f ]

If the eeprom is not accessible, an nvmem device will be registered, the
read will fail, and the device will be torn down. If another driver
accesses the nvmem device after the teardown, it will reference
invalid memory.

Move the failure point before registering the nvmem device.

Signed-off-by: Daniel Okazaki <dtokazaki@google.com>
Fixes: b20eb4c1f0 ("eeprom: at24: drop unnecessary label")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240422174337.2487142-1-dtokazaki@google.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-17 12:01:56 +02:00
..
at24.c eeprom: at24: fix memory corruption race condition 2024-05-17 12:01:56 +02:00
at25.c eeprom: at25: Convert to use fwnode_device_is_compatible() 2023-01-20 12:05:01 +01:00
digsy_mtc_eeprom.c
ee1004.c misc: Switch i2c drivers back to use .probe() 2023-05-29 15:04:52 +01:00
eeprom.c misc: Switch i2c drivers back to use .probe() 2023-05-29 15:04:52 +01:00
eeprom_93cx6.c misc: eeprom: eeprom_93cx6: Repair function arg descriptions 2020-06-29 18:45:52 +02:00
eeprom_93xx46.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
idt_89hpesx.c misc: eeprom/idt_89hpesx: Use devm_kmemdup to replace devm_kmalloc + memcpy 2023-08-11 21:38:52 +02:00
Kconfig eeprom: at24: also select REGMAP 2023-06-08 09:58:57 +02:00
Makefile
max6875.c misc: Switch i2c drivers back to use .probe() 2023-05-29 15:04:52 +01:00