nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties
authorKang Chen <void0red@gmail.com>
Mon, 27 Feb 2023 09:30:37 +0000 (17:30 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 17 Mar 2023 07:48:53 +0000 (08:48 +0100)
commit4357bbb921fe9e81d0fd9f70d669d1f177d8380e
tree779a4da04b4298fd720ddad79b8ad24fe68d614c
parent04bfc5bcdfc0fdb73587487c71b04d63807ae15a
nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties

[ Upstream commit 11f180a5d62a51b484e9648f9b310e1bd50b1a57 ]

devm_kmalloc_array may fails, *fw_vsc_cfg might be null and cause
out-of-bounds write in device_property_read_u8_array later.

Fixes: a06347c04c13 ("NFC: Add Intel Fields Peak NFC solution driver")
Signed-off-by: Kang Chen <void0red@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230227093037.907654-1-void0red@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/nfc/fdp/i2c.c