From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754089AbcBNWyk (ORCPT ); Sun, 14 Feb 2016 17:54:40 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:43423 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753731AbcBNWyb (ORCPT ); Sun, 14 Feb 2016 17:54:31 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Li Bin , Steven Rostedt Subject: [PATCH 3.10 01/64] recordmcount: Fix endianness handling bug for nop_mcount Date: Sun, 14 Feb 2016 14:22:33 -0800 Message-Id: <20160214222221.082665801@linuxfoundation.org> X-Mailer: git-send-email 2.7.1 In-Reply-To: <20160214222221.031471863@linuxfoundation.org> References: <20160214222221.031471863@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: libin commit c84da8b9ad3761eef43811181c7e896e9834b26b upstream. In nop_mcount, shdr->sh_offset and welp->r_offset should handle endianness properly, otherwise it will trigger Segmentation fault if the recordmcount main and file.o have different endianness. Link: http://lkml.kernel.org/r/563806C7.7070606@huawei.com Signed-off-by: Li Bin Signed-off-by: Steven Rostedt Signed-off-by: Greg Kroah-Hartman --- scripts/recordmcount.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/scripts/recordmcount.h +++ b/scripts/recordmcount.h @@ -377,7 +377,7 @@ static void nop_mcount(Elf_Shdr const *c if (mcountsym == Elf_r_sym(relp) && !is_fake_mcount(relp)) { if (make_nop) - ret = make_nop((void *)ehdr, shdr->sh_offset + relp->r_offset); + ret = make_nop((void *)ehdr, _w(shdr->sh_offset) + _w(relp->r_offset)); if (warn_on_notrace_sect && !once) { printf("Section %s has mcount callers being ignored\n", txtname);