Colin Ian King 5307944aa5 platform/x86: alienware-wmi: fix kfree on potentially uninitialized pointer ...

commit 98e2630284 upstream.

Currently the kfree of output.pointer can be potentially freeing
an uninitalized pointer in the case where out_data is NULL. Fix this
by reworking the case where out_data is not-null to perform the
ACPI status check and also the kfree of outpoint.pointer in one block
and hence ensuring the pointer is only freed when it has been used.

Also replace the if (ptr != NULL) idiom with just if (ptr).

Fixes: ff0e9f2628 ("platform/x86: alienware-wmi: Correct a memory leak")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-05-27 16:42:00 +02:00

..

chrome

platform/chrome: cros_ec_proto: check for NULL transfer function

2019-06-22 08:17:15 +02:00

goldfish

goldfish: Sanitize the broken interrupt handler

2017-02-26 11:10:52 +01:00

mips

MIPS: Loongson: Fix return value of loongson_hwmon_init

2020-01-29 10:24:35 +01:00

olpc

platform/olpc: Make ec explicitly non-modular

2016-08-28 22:31:52 -07:00

x86

platform/x86: alienware-wmi: fix kfree on potentially uninitialized pointer

2020-05-27 16:42:00 +02:00

Kconfig

goldfish: refactor goldfish platform configs

2016-01-28 23:34:36 -08:00

Makefile

MIPS: Loongson-3: Add CPU Hwmon platform driver

2015-04-01 17:22:17 +02:00