From patchwork Fri Apr 15 02:13:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 12814208 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0DC1EC43219 for ; Fri, 15 Apr 2022 02:13:59 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 915516B0085; Thu, 14 Apr 2022 22:13:58 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 89C136B0087; Thu, 14 Apr 2022 22:13:58 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 73D466B0088; Thu, 14 Apr 2022 22:13:58 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0063.hostedemail.com [216.40.44.63]) by kanga.kvack.org (Postfix) with ESMTP id 65C496B0085 for ; Thu, 14 Apr 2022 22:13:58 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 31733A79A5 for ; Fri, 15 Apr 2022 02:13:58 +0000 (UTC) X-FDA: 79357492956.29.5A783E1 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf10.hostedemail.com (Postfix) with ESMTP id BEAB0C0009 for ; Fri, 15 Apr 2022 02:13:57 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 98A63B82B5F; Fri, 15 Apr 2022 02:13:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B0B3C385A1; Fri, 15 Apr 2022 02:13:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1649988836; bh=BKRZEFrsT7HckjP5sHfg9m9OXct1eM7WyctjCsktjL0=; h=Date:To:From:In-Reply-To:Subject:From; b=VobwKsOtL9/lzK56pUwdrV37Wx3MHwRc7XltBcqZa49C2J0b69TuppanPp8VWNJSh XehNRwrTmpTtowSP/bBxehpNm6xcHvk54SRhkZRkXycGcETO+3af9J6HSxF0dNYTPT D6jBG6ufJpIuv6tcbCDBrWkhg8cMyEpyw9wo40vQ= Date: Thu, 14 Apr 2022 19:13:55 -0700 To: viro@zeniv.linux.org.uk,surenb@google.com,stable@vger.kernel.org,sspatil@google.com,songliubraving@fb.com,shuah@kernel.org,rppt@kernel.org,rientjes@google.com,regressions@leemhuis.info,ndesaulniers@google.com,mike.kravetz@oracle.com,maskray@google.com,kirill.shutemov@linux.intel.com,irogers@google.com,hughd@google.com,hjl.tools@gmail.com,ckennelly@google.com,adobriyan@gmail.com,akpm@linux-foundation.org,patches@lists.linux.dev,linux-mm@kvack.org,mm-commits@vger.kernel.org,torvalds@linux-foundation.org,akpm@linux-foundation.org From: Andrew Morton In-Reply-To: <20220414191240.9f86d15a3e3afd848a9839a6@linux-foundation.org> Subject: [patch 11/14] revert "fs/binfmt_elf: fix PT_LOAD p_align values for loaders" Message-Id: <20220415021356.1B0B3C385A1@smtp.kernel.org> X-Rspam-User: X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: BEAB0C0009 X-Stat-Signature: fnr4icmon56mqu3dqfyyc64xz1jhhiwr Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=VobwKsOt; spf=pass (imf10.hostedemail.com: domain of akpm@linux-foundation.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-HE-Tag: 1649988837-265687 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Andrew Morton Subject: revert "fs/binfmt_elf: fix PT_LOAD p_align values for loaders" 925346c129da11 ("fs/binfmt_elf: fix PT_LOAD p_align values for loaders") is an attempt to fix regressions due to 9630f0d60fec5f ("fs/binfmt_elf: use PT_LOAD p_align values for static PIE"). But regressionss continue to be reported: https://lore.kernel.org/lkml/cb5b81bd-9882-e5dc-cd22-54bdbaaefbbc@leemhuis.info/ https://bugzilla.kernel.org/show_bug.cgi?id=215720 https://lkml.kernel.org/r/b685f3d0-da34-531d-1aa9-479accd3e21b@leemhuis.info This patch reverts the fix, so the original can also be reverted. Fixes: 925346c129da11 ("fs/binfmt_elf: fix PT_LOAD p_align values for loaders") Cc: H.J. Lu Cc: Chris Kennelly Cc: Al Viro Cc: Alexey Dobriyan Cc: Song Liu Cc: David Rientjes Cc: Ian Rogers Cc: Hugh Dickins Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Fangrui Song Cc: Nick Desaulniers Cc: Kirill A. Shutemov Cc: Mike Kravetz Cc: Shuah Khan Cc: Thorsten Leemhuis Cc: Mike Rapoport Cc: Signed-off-by: Andrew Morton --- fs/binfmt_elf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/binfmt_elf.c~revert-fs-binfmt_elf-fix-pt_load-p_align-values-for-loaders +++ a/fs/binfmt_elf.c @@ -1118,7 +1118,7 @@ out_free_interp: * without MAP_FIXED nor MAP_FIXED_NOREPLACE). */ alignment = maximum_alignment(elf_phdata, elf_ex->e_phnum); - if (interpreter || alignment > ELF_MIN_ALIGN) { + if (alignment > ELF_MIN_ALIGN) { load_bias = ELF_ET_DYN_BASE; if (current->flags & PF_RANDOMIZE) load_bias += arch_mmap_rnd();