Greg Kroah-Hartman d1398e3715 i2c: dev: zero out array used for i2c reads from userspace ... commit 86ff25ed6c upstream. If an i2c driver happens to not provide the full amount of data that a user asks for, it is possible that some uninitialized data could be sent to userspace. While all in-kernel drivers look to be safe, just be sure by initializing the buffer to zero before it is passed to the i2c driver so that any future drivers will not have this issue. Also properly copy the amount of data recvieved to the userspace buffer, as pointed out by Dan Carpenter. Reported-by: Eric Dumazet <edumazet@google.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Wolfram Sang <wsa@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-08-18 08:59:05 +02:00
..
algos	i2c: algo: pca: Reapply i2c bus settings after reset	2020-09-09 10:22:40 +02:00
busses	i2c: robotfuzz-osif: fix control-request directions	2021-06-30 08:47:25 -04:00
muxes	i2c: mux: reg: Simplify with dev_err_probe()	2020-09-18 23:02:03 +02:00
i2c-boardinfo.c
i2c-core-acpi.c	i2c: core: Restore acpi_walk_dep_device_list() getting called after registering the ACPI i2c devs	2020-10-25 13:33:54 +01:00
i2c-core-base.c	i2c: core: Disable client irq on reboot/shutdown	2021-07-20 16:05:46 +02:00
i2c-core-of.c	i2c: use my kernel.org address from now on	2020-05-05 16:29:09 +02:00
i2c-core-slave.c	i2c: slave: add sanity check when unregistering	2020-07-28 18:37:17 +02:00
i2c-core-smbus.c	i2c: core: check returned size of emulated smbus block read	2020-06-26 10:18:35 +02:00
i2c-core.h	i2c: acpi: Remove dead code, i.e. i2c_acpi_match_device()	2020-08-25 09:22:09 +02:00
i2c-dev.c	i2c: dev: zero out array used for i2c reads from userspace	2021-08-18 08:59:05 +02:00
i2c-mux.c
i2c-slave-eeprom.c	i2c: busses: Use fallthrough pseudo-keyword	2020-07-23 22:04:08 +02:00
i2c-slave-testunit.c	i2c: add slave testunit driver	2020-09-21 11:02:17 +02:00
i2c-smbus.c	i2c: smbus: add core function handling SMBus host-notify	2020-09-09 10:38:28 +02:00
i2c-stub.c
Kconfig	i2c: add slave testunit driver	2020-09-21 11:02:17 +02:00
Makefile	i2c: add slave testunit driver	2020-09-21 11:02:17 +02:00