nfc: st-nci: fix incorrect validating logic in EVT_TRANSACTION
authorMartin Faltesek <mfaltesek@google.com>
Tue, 22 Nov 2022 00:42:44 +0000 (18:42 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 2 Dec 2022 16:41:07 +0000 (17:41 +0100)
commitdca20b7a1959e5af6c61f51ae0e8ac48db634144
tree16d5d9e83b28e35a42c9ce123eab7516cbe7ac86
parent67d638f8efc49cd9115402b1274bbbe0a5db11e8
nfc: st-nci: fix incorrect validating logic in EVT_TRANSACTION

[ Upstream commit c60c152230828825c06e62a8f1ce956d4b659266 ]

The first validation check for EVT_TRANSACTION has two different checks
tied together with logical AND. One is a check for minimum packet length,
and the other is for a valid aid_tag. If either condition is true (fails),
then an error should be triggered. The fix is to change && to ||.

Reported-by: Denis Efremov <denis.e.efremov@oracle.com>
Reviewed-by: Guenter Roeck <groeck@google.com>
Fixes: 5d1ceb7f5e56 ("NFC: st21nfcb: Add HCI transaction event support")
Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/nfc/st-nci/se.c