OSDN Git Service

s390/zcrypt: add copy_from_user length plausibility checks
authorHarald Freudenberger <freude@linux.ibm.com>
Wed, 27 Jun 2018 07:50:43 +0000 (09:50 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 2 Jul 2018 09:24:55 +0000 (11:24 +0200)
commit1fee96264a718fc5a2a94a09d5c7e2915a1c76b2
tree7a489dfd2bb1be1eb443b239410eb901689eca58
parentad82a928eb58471adb2dec2001f5fbe57e5ee4b5
s390/zcrypt: add copy_from_user length plausibility checks

There have been identified some places in the zcrypt
device driver where copy_from_user() is called but the
length value is not explicitly checked.

So now some plausibility checks and comments have been
introduced there.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/crypto/zcrypt_cca_key.h
drivers/s390/crypto/zcrypt_msgtype6.c