From: Al Viro <viro@zeniv.linux.org.uk>
To: Ben Widawsky <ben.widawsky@intel.com>
Cc: linux-cxl@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org,
linux-pci@vger.kernel.org, Bjorn Helgaas <helgaas@kernel.org>,
Chris Browy <cbrowy@avery-design.com>,
Christoph Hellwig <hch@infradead.org>,
David Hildenbrand <david@redhat.com>,
David Rientjes <rientjes@google.com>,
Jon Masters <jcm@jonmasters.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Rafael Wysocki <rafael.j.wysocki@intel.com>,
Randy Dunlap <rdunlap@infradead.org>,
"John Groves (jgroves)" <jgroves@micron.com>,
"Kelley, Sean V" <sean.v.kelley@intel.com>,
kernel test robot <lkp@intel.com>,
Dan Williams <dan.j.willams@intel.com>
Subject: Re: [PATCH v2 4/8] cxl/mem: Add basic IOCTL interface
Date: Sun, 14 Feb 2021 23:57:58 +0000 [thread overview]
Message-ID: <YCm5Bs2NalmHgeZn@zeniv-ca.linux.org.uk> (raw)
In-Reply-To: <YCm3NFqO9gVtXOZP@zeniv-ca.linux.org.uk>
On Sun, Feb 14, 2021 at 11:50:12PM +0000, Al Viro wrote:
> check that len is reasonable
> p = kmalloc(offsetof(struct foo, string[len]), GFP_KERNEL);
> copy_from_user(p, user_object, len);
offsetof(struct foo, string[len]), that is
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WARNING: multiple messages have this Message-ID (diff)
From: Al Viro <viro@zeniv.linux.org.uk>
To: Ben Widawsky <ben.widawsky@intel.com>
Cc: linux-cxl@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org,
linux-pci@vger.kernel.org, Bjorn Helgaas <helgaas@kernel.org>,
Chris Browy <cbrowy@avery-design.com>,
Christoph Hellwig <hch@infradead.org>,
Dan Williams <dan.j.williams@intel.com>,
David Hildenbrand <david@redhat.com>,
David Rientjes <rientjes@google.com>,
Ira Weiny <ira.weiny@intel.com>, Jon Masters <jcm@jonmasters.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Rafael Wysocki <rafael.j.wysocki@intel.com>,
Randy Dunlap <rdunlap@infradead.org>,
Vishal Verma <vishal.l.verma@intel.com>,
"John Groves (jgroves)" <jgroves@micron.com>,
"Kelley, Sean V" <sean.v.kelley@intel.com>,
kernel test robot <lkp@intel.com>,
Dan Williams <dan.j.willams@intel.com>
Subject: Re: [PATCH v2 4/8] cxl/mem: Add basic IOCTL interface
Date: Sun, 14 Feb 2021 23:57:58 +0000 [thread overview]
Message-ID: <YCm5Bs2NalmHgeZn@zeniv-ca.linux.org.uk> (raw)
In-Reply-To: <YCm3NFqO9gVtXOZP@zeniv-ca.linux.org.uk>
On Sun, Feb 14, 2021 at 11:50:12PM +0000, Al Viro wrote:
> check that len is reasonable
> p = kmalloc(offsetof(struct foo, string[len]), GFP_KERNEL);
> copy_from_user(p, user_object, len);
offsetof(struct foo, string[len]), that is
next prev parent reply other threads:[~2021-02-14 23:58 UTC|newest]
Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-10 0:02 [PATCH v2 0/8] CXL 2.0 Support Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
2021-02-10 0:02 ` [PATCH v2 1/8] cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
2021-02-10 16:17 ` Jonathan Cameron
2021-02-10 16:17 ` Jonathan Cameron
2021-02-10 17:12 ` Ben Widawsky
2021-02-10 17:12 ` Ben Widawsky
2021-02-10 17:23 ` Jonathan Cameron
2021-02-10 17:23 ` Jonathan Cameron
2021-02-10 0:02 ` [PATCH v2 2/8] cxl/mem: Find device capabilities Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
2021-02-10 13:32 ` Jonathan Cameron
2021-02-10 13:32 ` Jonathan Cameron
2021-02-10 15:07 ` Jonathan Cameron
2021-02-10 15:07 ` Jonathan Cameron
2021-02-10 16:55 ` Ben Widawsky
2021-02-10 16:55 ` Ben Widawsky
2021-02-10 17:30 ` Jonathan Cameron
2021-02-10 17:30 ` Jonathan Cameron
2021-02-10 18:16 ` Ben Widawsky
2021-02-10 18:16 ` Ben Widawsky
2021-02-11 9:55 ` Jonathan Cameron
2021-02-11 9:55 ` Jonathan Cameron
2021-02-11 15:55 ` Ben Widawsky
2021-02-11 15:55 ` Ben Widawsky
2021-02-12 13:27 ` Jonathan Cameron
2021-02-12 13:27 ` Jonathan Cameron
2021-02-12 15:54 ` Ben Widawsky
2021-02-12 15:54 ` Ben Widawsky
2021-02-11 18:27 ` Ben Widawsky
2021-02-11 18:27 ` Ben Widawsky
2021-02-12 13:23 ` Jonathan Cameron
2021-02-12 13:23 ` Jonathan Cameron
2021-02-10 19:32 ` Ben Widawsky
2021-02-10 19:32 ` Ben Widawsky
2021-02-10 17:41 ` Jonathan Cameron
2021-02-10 17:41 ` Jonathan Cameron
2021-02-10 18:53 ` Ben Widawsky
2021-02-10 18:53 ` Ben Widawsky
2021-02-10 19:54 ` Dan Williams
2021-02-10 19:54 ` Dan Williams
2021-02-11 10:01 ` Jonathan Cameron
2021-02-11 10:01 ` Jonathan Cameron
2021-02-11 16:04 ` Ben Widawsky
2021-02-11 16:04 ` Ben Widawsky
2021-02-10 0:02 ` [PATCH v2 3/8] cxl/mem: Register CXL memX devices Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
2021-02-10 18:17 ` Jonathan Cameron
2021-02-10 18:17 ` Jonathan Cameron
2021-02-11 10:17 ` Jonathan Cameron
2021-02-11 10:17 ` Jonathan Cameron
2021-02-11 20:40 ` Dan Williams
2021-02-11 20:40 ` Dan Williams
2021-02-12 13:33 ` Jonathan Cameron
2021-02-12 13:33 ` Jonathan Cameron
2021-02-10 0:02 ` [PATCH v2 4/8] cxl/mem: Add basic IOCTL interface Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
2021-02-10 18:45 ` Jonathan Cameron
2021-02-10 18:45 ` Jonathan Cameron
2021-02-10 20:22 ` Ben Widawsky
2021-02-10 20:22 ` Ben Widawsky
2021-02-11 4:40 ` Dan Williams
2021-02-11 4:40 ` Dan Williams
2021-02-11 10:06 ` Jonathan Cameron
2021-02-11 10:06 ` Jonathan Cameron
2021-02-11 16:54 ` Ben Widawsky
2021-02-11 16:54 ` Ben Widawsky
2021-02-14 16:30 ` Al Viro
2021-02-14 16:30 ` Al Viro
2021-02-14 23:14 ` Ben Widawsky
2021-02-14 23:14 ` Ben Widawsky
2021-02-14 23:50 ` Al Viro
2021-02-14 23:50 ` Al Viro
2021-02-14 23:57 ` Al Viro [this message]
2021-02-14 23:57 ` Al Viro
2021-02-10 0:02 ` [PATCH v2 5/8] cxl/mem: Add a "RAW" send command Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
2021-02-10 15:26 ` Ariel.Sibley
2021-02-10 15:26 ` Ariel.Sibley
2021-02-10 16:49 ` Ben Widawsky
2021-02-10 16:49 ` Ben Widawsky
2021-02-10 18:03 ` Ariel.Sibley
2021-02-10 18:03 ` Ariel.Sibley
2021-02-10 18:11 ` Ben Widawsky
2021-02-10 18:11 ` Ben Widawsky
2021-02-10 18:46 ` Ariel.Sibley
2021-02-10 18:46 ` Ariel.Sibley
2021-02-10 19:12 ` Ben Widawsky
2021-02-10 19:12 ` Ben Widawsky
2021-02-11 16:43 ` Dan Williams
2021-02-11 16:43 ` Dan Williams
2021-02-11 11:19 ` Jonathan Cameron
2021-02-11 11:19 ` Jonathan Cameron
2021-02-11 16:01 ` Ben Widawsky
2021-02-11 16:01 ` Ben Widawsky
2021-02-12 13:40 ` Jonathan Cameron
2021-02-12 13:40 ` Jonathan Cameron
2021-02-10 0:02 ` [PATCH v2 6/8] cxl/mem: Enable commands via CEL Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
2021-02-11 12:02 ` Jonathan Cameron
2021-02-11 12:02 ` Jonathan Cameron
2021-02-11 17:45 ` Ben Widawsky
2021-02-11 17:45 ` Ben Widawsky
2021-02-11 20:34 ` Dan Williams
2021-02-11 20:34 ` Dan Williams
2021-02-16 13:43 ` Bartosz Golaszewski
2021-02-16 13:43 ` Bartosz Golaszewski
2021-02-10 0:02 ` [PATCH v2 7/8] cxl/mem: Add set of informational commands Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
2021-02-11 12:07 ` Jonathan Cameron
2021-02-11 12:07 ` Jonathan Cameron
2021-02-10 0:02 ` [PATCH v2 8/8] MAINTAINERS: Add maintainers of the CXL driver Ben Widawsky
2021-02-10 0:02 ` Ben Widawsky
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