From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E082441D658 for ; Tue, 4 Aug 2026 07:30:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785828650; cv=none; b=GNV9zHcEtSTJRrYOe1/q3sR3jJgqB165rsp9OiTtujunNo+vxwYSAdybWRvVgfl5QqqMeuSnY0JIaLiuSvWkngGK2dmOt5Gd/lkSkvAzZaRf3N+6KoqyoqnIVMb5gdL/yaMhpRKl1HBRh6rLMAJIISsbtO74EHj3TTyB4oUYYgI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785828650; c=relaxed/simple; bh=y1+ZfWlIyjPpuib+RE3Pcg48seTrU3XHTR6lTvF527Q=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uVimuIeGSa7V4k3Zu7FsMQQpE77891YG2UwJYuDSh36fIsIfOqTs8tZ/2qxXsTdHLu9KadMt0OhOPU9U04uQQrDMPO1yFyJf30+7cGkQcYaW9Jc7c8FuvQK2jqp+cHwE0TI1tfmHJDky4Uc3YbULWYTYPQeN0tUsvfVteOjlJAM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=iLdIwCHh; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="iLdIwCHh" Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6741K2Ed3660601 for ; Tue, 4 Aug 2026 07:30:48 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=pp1; bh=fSJFu9EQJeoXBJqvRiC/E51AM34lLe /I9RZrsrjpwP0=; b=iLdIwCHhLb5ZNUdmgj53FI+DVZocIIE+OEXrWCOQjToG9B m+zLvJ+WigvGRC1dAwtlaDPO/IMIbCRdtlw3TggBVQJr84TP+9PoPkWaPYW9/Bs0 rpv1I2MzgfBeJWg9NRu+GXNwsvv5E6sAnSNp5KUJDiuHb57+OYeU0bTyfnIBkjbk xz9S34k5tqFkr8is54ylGCTs9/WuTasx5licUxj3umvM3wBbf4TEyHp7JFxXk815 WhQ7w6bshJ2OSY/eCNM7Mwb7sfj2EILbuh0pSbIvs14JYQ9u3NpLLfSIAHuTHh5V XksutaUpxw6y0oBNkhoS0SJC9MsmN7QxoJR6EaXg== Received: from ppma23.wdc07v.mail.ibm.com (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4fs8h4vpm1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 04 Aug 2026 07:30:47 +0000 (GMT) Received: from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1]) by ppma23.wdc07v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 6747QR7h020994 for ; Tue, 4 Aug 2026 07:30:46 GMT Received: from smtprelay02.fra02v.mail.ibm.com ([9.218.2.226]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4fsvmh8vr4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 04 Aug 2026 07:30:46 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (smtpav05.fra02v.mail.ibm.com [10.20.54.104]) by smtprelay02.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 6747Ug6j45875566 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 4 Aug 2026 07:30:42 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B89812004D; Tue, 4 Aug 2026 07:30:42 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6DCED20043; Tue, 4 Aug 2026 07:30:42 +0000 (GMT) Received: from localhost (unknown [9.111.52.241]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTPS; Tue, 4 Aug 2026 07:30:42 +0000 (GMT) Date: Tue, 4 Aug 2026 09:30:41 +0200 From: Vasily Gorbik To: Harald Freudenberger Cc: dengler@linux.ibm.com, fcallies@linux.ibm.com, ifranzki@linux.ibm.com, linux-s390@vger.kernel.org, Heiko Carstens , Alexander Gordeev Subject: Re: [PATCH v11 0/5] Improve code in zcrypt msg type 6 handling Message-ID: References: <20260803083339.212885-1-freude@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260803083339.212885-1-freude@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYwODA0MDA1NyBTYWx0ZWRfXxSFp5nsrCk6b cJjyobwfK3A5p4AQqnLmC/lUO8Pue5mAeO09JchtwCUgii0z1kyzsRxFzYc51X1GvFEnC8RFf82 QG4BF5vpp57DMUVQCet6/KGrTj3WjqA= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA0MDA1NyBTYWx0ZWRfXwGAkZTOpy/SS khTsb4lDSX2Wx9P/GM9c1+zg+Z6oYMV5FCjQ0OqQHktwQlB+OTfcKW9PLCQylcBfrmoTU2scLrF n/bOu3h/+US/m5soWjryCqlki6wL0AYF0/HzXOPPn8Iw4d8qQUE79Pni7mmw0Zg9w8iGjiw3mP5 3uEOxKZiQ7VrNdDEYQ48S94jHUu/NdG+ILb2KOW++N6vfjnzjZeojU2u5wf6Uf/okHaaUNIOmdc qKqlmdcxPzZ/dLf6vlYzUCaaoM7eCdC0eza4fYwhziwTd/uWmjQTbCM815k6r10fTbpVRrya/zK I46AqI4ekvAFbJPNdEWonZ203k+992ye9bzskpdHU0T7qKvCMWsYnUIC5b+rAalU1Q5tJAPcpeX cuKYGjK+LQASdQeoVrurAGKq1Zd/Jb2InF2SmLlidEJ/Hh6Q3Q/tlo5mnhACIpW/JFg/qdhXVNV qgkjNYy7SooHQmZJjAg== X-Authority-Analysis: v=2.4 cv=SI1ykuvH c=1 sm=1 tr=0 ts=6a719527 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=LebHbyWCPVEYkwr_IkkA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: tOGPmBeMGfpCk4MoCMxNptzpwd3n74MO X-Proofpoint-GUID: tOGPmBeMGfpCk4MoCMxNptzpwd3n74MO X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-04_01,2026-08-03_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 bulkscore=0 suspectscore=0 impostorscore=0 spamscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608040057 On Mon, Aug 03, 2026 at 10:33:33AM +0200, Harald Freudenberger wrote: > Rework the limit and overflow checks in the both functions > xcrb_msg_to_type6_ep11cprb_msgx() and xcrb_msg_to_type6cprb_msgx(). > And more ... all related to the length checks done in these both > functions. ... > Harald Freudenberger (5): > s390/zcrypt: Fix CPRB memory allocation in zcrypt misc code > s390/zcrypt: Improve CCA CPRB length and overflow checks > s390/zcrypt: Improve EP11 CPRB length and overflow checks > s390/zcrypt: Improve EP11 CPRB domain handling with ASN.1 parsing > s390/zcrypt: Pad trailing CCA or EP11 message with zeros > > drivers/s390/crypto/zcrypt_ccamisc.c | 20 +- > drivers/s390/crypto/zcrypt_ep11misc.c | 16 +- > drivers/s390/crypto/zcrypt_msgtype6.c | 366 ++++++++++++++++++-------- > 3 files changed, 278 insertions(+), 124 deletions(-) Applied, thank you!