From aab73d278d49c718b722ff5052e16c9cddf144d4 Mon Sep 17 00:00:00 2001 From: Harald Freudenberger Date: Fri, 31 Jan 2020 12:08:31 +0100 Subject: s390/pkey: fix missing length of protected key on return The pkey ioctl call PKEY_SEC2PROTK updates a struct pkey_protkey on return. The protected key is stored in, the protected key type is stored in but the len information was not updated. This patch now fixes this and so the len field gets an update to refrect the actual size of the protected key value returned. Fixes: efc598e6c8a9 ("s390/zcrypt: move cca misc functions to new code file") Cc: Stable Signed-off-by: Harald Freudenberger Reported-by: Christian Rund Suggested-by: Ingo Franzki Signed-off-by: Vasily Gorbik --- drivers/s390/crypto/pkey_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/s390/crypto') diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c index 71dae64ba994..2f33c5fcf676 100644 --- a/drivers/s390/crypto/pkey_api.c +++ b/drivers/s390/crypto/pkey_api.c @@ -994,7 +994,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd, return -EFAULT; rc = cca_sec2protkey(ksp.cardnr, ksp.domain, ksp.seckey.seckey, ksp.protkey.protkey, - NULL, &ksp.protkey.type); + &ksp.protkey.len, &ksp.protkey.type); DEBUG_DBG("%s cca_sec2protkey()=%d\n", __func__, rc); if (rc) break; -- cgit v1.2.3