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=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_NEOMUTT autolearn=ham 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 07789C43441 for ; Thu, 29 Nov 2018 15:57:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C7E722243E for ; Thu, 29 Nov 2018 15:57:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C7E722243E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728914AbeK3DDm (ORCPT ); Thu, 29 Nov 2018 22:03:42 -0500 Received: from mx1.redhat.com ([209.132.183.28]:49082 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728363AbeK3DDm (ORCPT ); Thu, 29 Nov 2018 22:03:42 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 189503078AAE; Thu, 29 Nov 2018 15:57:53 +0000 (UTC) Received: from treble (ovpn-123-4.rdu2.redhat.com [10.10.123.4]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1864163F9C; Thu, 29 Nov 2018 15:57:51 +0000 (UTC) Date: Thu, 29 Nov 2018 09:57:50 -0600 From: Josh Poimboeuf To: Artem Savkov Cc: x86@kernel.org, Thomas Gleixner , "Eric W . Biederman" , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] x86/tools/relocs: fix big section header tables Message-ID: <20181129155750.xskdusm2fvub6tqa@treble> References: <20181129153258.cutmesclgfadc5gu@treble> <20181129155615.2594-1-asavkov@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20181129155615.2594-1-asavkov@redhat.com> User-Agent: NeoMutt/20180716 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Thu, 29 Nov 2018 15:57:53 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 29, 2018 at 04:56:15PM +0100, Artem Savkov wrote: > In case when the number of entries in the section header table is larger > then or equal to SHN_LORESERVE the size of the table is held in the sh_size > member of the initial entry in section header table instead of e_shnum. > Same with the string table index which is located in sh_link instead of > e_shstrndx. > > This case is easily reproducible with KCFLAGS="-ffunction-sections", > bzImage build fails with "String table index out of bounds" error. > > Signed-off-by: Artem Savkov Reviewed-by: Josh Poimboeuf -- Josh