From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 750ABC433E0 for ; Fri, 29 May 2020 23:26:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D5BE207BC for ; Fri, 29 May 2020 23:26:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728554AbgE2X0S (ORCPT ); Fri, 29 May 2020 19:26:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39674 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728040AbgE2X0S (ORCPT ); Fri, 29 May 2020 19:26:18 -0400 Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [IPv6:2002:c35c:fd02::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C7B3DC03E969; Fri, 29 May 2020 16:26:17 -0700 (PDT) Received: from viro by ZenIV.linux.org.uk with local (Exim 4.93 #3 (Red Hat Linux)) id 1jeoOF-000Be4-3C; Fri, 29 May 2020 23:26:15 +0000 Date: Sat, 30 May 2020 00:26:15 +0100 From: Al Viro To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCHES] uaccess misc Message-ID: <20200529232615.GK23230@ZenIV.linux.org.uk> References: <20200528234025.GT23230@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200528234025.GT23230@ZenIV.linux.org.uk> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The stuff that doesn't fit anywhere else. Hopefully saner marshalling for weird 7-argument syscalls (pselect6()), low-hanging fruit in several binfmt, unsafe_put_user-based x86 cp_stat64(), etc. - there's really no common topic here. BTW, after that series there's no more __clear_user() callers outside of arch/* and damn few in arch/*, other than clear_user() instances themselves... Branch is uaccess.misc, based at uaccess.base. Al Viro (9): pselect6() and friends: take handling the combined 6th/7th args into helper binfmt_elf: don't bother with __{put,copy_to}_user() binfmt_elf_fdpic: don't use __... uaccess primitives binfmt_flat: don't use __put_user() x86: switch cp_stat64() to unsafe_put_user() TEST_ACCESS_OK _never_ had been checked anywhere user_regset_copyout_zero(): use clear_user() x86: kvm_hv_set_msr(): use __put_user() instead of 32bit __clear_user() bpf: make bpf_check_uarg_tail_zero() use check_zeroed_user() arch/x86/include/asm/pgtable_32.h | 7 --- arch/x86/kernel/sys_ia32.c | 40 ++++++++------ arch/x86/kvm/hyperv.c | 2 +- fs/binfmt_elf.c | 14 ++--- fs/binfmt_elf_fdpic.c | 31 +++++++---- fs/binfmt_flat.c | 22 +++++--- fs/select.c | 112 ++++++++++++++++++++++---------------- include/linux/regset.h | 2 +- kernel/bpf/syscall.c | 25 ++------- 9 files changed, 134 insertions(+), 121 deletions(-)