From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="tHnqyxfO" Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BC7110DF; Fri, 1 Dec 2023 03:25:29 -0800 (PST) Received: from pps.filterd (m0353727.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3B1BLs6x025771; Fri, 1 Dec 2023 11:25:03 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=pp1; bh=JDUzZoo0usIHW1bL2X7anyVGvbWqKUEA7tIrv8v05tw=; b=tHnqyxfOpKCyJQS9Q2t6T+YBArVIO9T+BksB7CPM23mv787TWNE400l6B35o4efxzIgZ dTVPk64R5ES/U8fIEFZdkk6XmOqPOItJQeGIYkr4RTjVnoTUvos/sgpjBL7sHtasGumI IqsBtbExaSGm0U/D4mKfTxabVmwieN8VVL/Od1F4AAzYpQRMafuh25W1NVF4eyWsmDBm ow/7ypoop/jr4CS5zEI0eV/IiVMIlFaheuK9Vg9wHgXceJScHgJ+9UaKFFEIdZmnYJ8P zPqO1SZOKKYj14HDlUigQ0HYnNwAhJNBvJJHU7VgJ8EWBSVbpJ9T2dUxnzRq6IcGfA2X xA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3uqej203cs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 Dec 2023 11:25:03 +0000 Received: from m0353727.ppops.net (m0353727.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3B1BMput029715; Fri, 1 Dec 2023 11:25:02 GMT Received: from ppma21.wdc07v.mail.ibm.com (5b.69.3da9.ip4.static.sl-reverse.com [169.61.105.91]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3uqej203bx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 Dec 2023 11:25:02 +0000 Received: from pps.filterd (ppma21.wdc07v.mail.ibm.com [127.0.0.1]) by ppma21.wdc07v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 3B1AXt1j002633; Fri, 1 Dec 2023 11:25:01 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 3ukv8p4nxt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 Dec 2023 11:25:01 +0000 Received: from smtpav06.fra02v.mail.ibm.com (smtpav06.fra02v.mail.ibm.com [10.20.54.105]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 3B1BOveo11600416 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 Dec 2023 11:24:58 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D182D20049; Fri, 1 Dec 2023 11:24:57 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7747820040; Fri, 1 Dec 2023 11:24:57 +0000 (GMT) Received: from [9.152.224.222] (unknown [9.152.224.222]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 1 Dec 2023 11:24:57 +0000 (GMT) Message-ID: Date: Fri, 1 Dec 2023 12:24:56 +0100 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH 0/3] Use new wrappers to copy userspace arrays To: Sean Christopherson , Janosch Frank , Claudio Imbrenda , David Hildenbrand , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Sven Schnelle , Paolo Bonzini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Philipp Stanner Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org References: <20231102181526.43279-1-pstanner@redhat.com> <170137909771.669092.7450781639631347445.b4-ty@google.com> Content-Language: en-US From: Christian Borntraeger In-Reply-To: <170137909771.669092.7450781639631347445.b4-ty@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: LrfhoqbS-eviJ5_jMuCu1wAkL1ISHKbx X-Proofpoint-GUID: Xqwf_ASsKyrNP6BsfZQM4xXPHZMO1cS5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-01_09,2023-11-30_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 mlxlogscore=744 adultscore=0 phishscore=0 impostorscore=0 mlxscore=0 suspectscore=0 malwarescore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2312010075 Am 01.12.23 um 02:52 schrieb Sean Christopherson: > On Thu, 02 Nov 2023 19:15:23 +0100, Philipp Stanner wrote: >> Linus recently merged [1] the wrapper functions memdup_array_user() and >> vmemdup_array_user() in include/linux/string.h for Kernel v6.7 >> >> I am currently adding them to all places where (v)memdup_user() had been >> used to copy arrays. >> >> The wrapper is different to the wrapped functions only in that it might >> return -EOVERFLOW. So this new error code might get pushed up to >> userspace. I hope this is fine. >> >> [...] > > Applied to kvm-x86 generic. Claudio (or anyone else from s390), holler if > you want to take the s390 patch through the s390 tree. I think this is fine via your tree. Feel free to add Acked-by: Christian Borntraeger to patch 2 if the commit id is not yet final.