From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-pg1-x544.google.com ([2607:f8b0:4864:20::544]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jyqXW-0001PX-Uh for kexec@lists.infradead.org; Fri, 24 Jul 2020 05:46:39 +0000 Received: by mail-pg1-x544.google.com with SMTP id t6so4665815pgq.1 for ; Thu, 23 Jul 2020 22:46:38 -0700 (PDT) Subject: Re: [PATCH v2 15/18] fs/kernel_file_read: Add "offset" arg for partial reads References: <20200722193020.2676422-1-keescook@chromium.org> <20200722193020.2676422-16-keescook@chromium.org> <354ec0c3-b56d-f5b5-574f-4032fee0b55a@broadcom.com> <202007231215.D6E097C@keescook> From: Scott Branden Message-ID: <899b7bd3-40d8-73d3-cc04-ac36058aacaf@broadcom.com> Date: Thu, 23 Jul 2020 22:46:12 -0700 MIME-Version: 1.0 In-Reply-To: <202007231215.D6E097C@keescook> Content-Language: en-US List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Kees Cook Cc: linux-efi@vger.kernel.org, "Rafael J. Wysocki" , Peter Zijlstra , linux-fsdevel@vger.kernel.org, Stephen Boyd , SeongJae Park , Mimi Zohar , David Howells , Tushar Sugandhi , Peter Jones , linux-kselftest@vger.kernel.org, "Joel Fernandes (Google)" , Shuah Khan , Ard Biesheuvel , Thomas Cedeno , linux-security-module@vger.kernel.org, Anders Roxell , Paul Moore , Mauro Carvalho Chehab , Michael Ellerman , Nayna Jain , Matthew Garrett , James Morris , Lakshmi Ramasubramanian , Aaron Goidel , "Serge E. Hallyn" , Wenwen Wang , selinux@vger.kernel.org, Jessica Yu , Hans de Goede , Alexander Viro , Matthieu Baerts , KP Singh , Eric Paris , linux-integrity@vger.kernel.org, Florent Revest , Andrea Righi , Greg Kroah-Hartman , Stephen Smalley , Randy Dunlap , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Luis Chamberlain , Eric Biederman , Dave Olsthoorn , Dmitry Kasatkin , Casey Schaufler , Joe Perches , Andrew Morton , Thiago Jung Bauermann CgpPbiAyMDIwLTA3LTIzIDEyOjE3IHAubS4sIEtlZXMgQ29vayB3cm90ZToKPiBPbiBXZWQsIEp1 bCAyMiwgMjAyMCBhdCAxMToyMzo0M1BNIC0wNzAwLCBTY290dCBCcmFuZGVuIHdyb3RlOgo+PiBJ IG1hZGUgYW4gYWRqdXN0bWVudCBpbiB0aGUgbG9naWMgb2YgdGhlIGRyaXZlciB3aXRoIHVzZSBv Zgo+PiByZXF1ZXN0X3BhcnRpYWxfZmlybXdhcmVfaW50b19idWYgYW5kIG5vdyBldmVyeXRoaW5n IGlzIHdvcmtpbmcuCj4gRXhjZWxsZW50ISBXYXMgdGhlcmUgc29tZXRoaW5nIHdyb25nIHdpdGgg aG93IEkgcG9ydGVkIHRoZQo+IHJlcXVlc3RfcGFydGlhbF9maXJtd2FyZV9pbnRvX2J1ZigpIGNo YW5nZXM/IChTaG91bGQgdGhlIGJlaGF2aW9yIGJlCj4gY2hhbmdlZCBpbiBzb21lIHdheT8gSSBk aWRuJ3QgY2hhbmdlIHRoZSBzZWxmLXRlc3RzLCBzbyBJIHRob3VnaHQgdGhlCj4gYmVoYXZpb3Ig bWF0Y2hlZCB5b3VyIG9yaWdpbmFsIHNlcmllcy4pClRoZSBjaGFuZ2UgaW4gYmVoYXZpb3VyIGlz IGZ3LT5md19zaXplIHVzZWQgdG8gaW5kaWNhdGUgdGhlIHBvc2l0aW9uIGluIAp0aGUgZmlsZSBh ZnRlciB0aGUgcGFydGlhbCByZWFkIGNvbXBsZXRlcy4KWW91ciB2ZXJzaW9uIGhhcyBmdy0+Zndf c2l6ZSBpbmRpY2F0ZSB0aGUgYW1vdW50IG9mIGRhdGEgcmVhZC4KTm8gbmVlZCBmb3IgeW91IHRv IGNoYW5nZSBhbnl0aGluZy7CoCBJIGp1c3QgbmVlZCBhIGxvY2FsIHZhcmlhYmxlIG5vdyB0byAK a2VlcCB0cmFjayBvZiB3aGVyZSBJIGxlZnQgb2ZmIGluIHRoZSBmaWxlLgo+Cj4+IFNvIG9ubHkg aXNzdWUgSSBmaW5kIHdpdGggdGhpcyBlbnRpcmUgcGF0Y2ggc2VyaWVzIGlzIHRoZSBwcm9ibGVt Cj4+IG9mIHNlY3VyaXR5IGZhaWxpbmcgd2l0aG91dCB0aGUgd29ya2Fyb3VuZCBiZWxvdy4KPiBZ dXA7IEknbSB0cnlpbmcgdG8gcmVwcm9kdWNlIHRoaXMgbm93IHRvby4uLgpJIHJlcGxpZWQgaW4g dGhlIG90aGVyIGVtYWlsIHdpdGggZGV0YWlscyBhbmQgdGhlIGRtZXNnIGxvZy4KPgoKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmtleGVjIG1haWxpbmcg bGlzdAprZXhlY0BsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3Jn L21haWxtYW4vbGlzdGluZm8va2V4ZWMK