From: Harald Freudenberger <freude@linux.ibm.com>
To: Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>
Cc: freude@linux.ibm.com, linux-s390@vger.kernel.org
Subject: [PATCH v2 0/1] Fix wrong domain value verification with EP11 cards
Date: Wed, 22 Jul 2026 16:38:30 +0200 [thread overview]
Message-ID: <20260722143831.109929-1-freude@linux.ibm.com> (raw)
There is a wrong upper limit check for the domain value when an EP11
CPRB is processed for sending to a crypto card. This check is only
active on custom device nodes but may lead to access heap memory
behind perms->adm when an administrative CPRB is sent.
Add correct limit (AP_DOMAINS = 256) checking to fix this.
v1: initial version
v2: Resend without any code changes, just Finn's reviewed by added.
Harald Freudenberger (1):
s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs
drivers/s390/crypto/zcrypt_api.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--
2.43.0
next reply other threads:[~2026-07-22 14:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-22 14:38 Harald Freudenberger [this message]
2026-07-22 14:38 ` [PATCH v2 1/1] s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs Harald Freudenberger
2026-07-22 14:53 ` sashiko-bot
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