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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 A33E3C43441 for ; Sun, 11 Nov 2018 04:23:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3F59420862 for ; Sun, 11 Nov 2018 04:23:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3F59420862 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=asrmicro.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 S1727488AbeKKOKt (ORCPT ); Sun, 11 Nov 2018 09:10:49 -0500 Received: from asrmicro.com ([210.13.118.86]:36042 "EHLO mail2012.asrmicro.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727184AbeKKOKs (ORCPT ); Sun, 11 Nov 2018 09:10:48 -0500 X-Greylist: delayed 921 seconds by postgrey-1.27 at vger.kernel.org; Sun, 11 Nov 2018 09:10:47 EST Received: from localhost (10.38.17.127) by mail2012.asrmicro.com (10.1.24.123) with Microsoft SMTP Server (TLS) id 15.0.847.32; Sun, 11 Nov 2018 12:07:37 +0800 From: Zhizhou Zhang To: , , , , , CC: , , , Subject: [PATCH] arm64: disable KASAN for save_trace() Date: Sun, 11 Nov 2018 20:07:16 +0800 Message-ID: <1541938036-29498-1-git-send-email-zhizhouzhang@asrmicro.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.38.17.127] X-ClientProxiedBy: mail2012.asrmicro.com (10.1.24.123) To mail2012.asrmicro.com (10.1.24.123) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org save_trace() which is called from walk_stackframe() always try to read/write caller's stack. This results KASAN stack-out-of-bounds warning. So mute it. Signed-off-by: Zhizhou Zhang --- arch/arm64/kernel/stacktrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c index 4989f7e..e93ca67 100644 --- a/arch/arm64/kernel/stacktrace.c +++ b/arch/arm64/kernel/stacktrace.c @@ -107,7 +107,7 @@ struct stack_trace_data { unsigned int skip; }; -static int save_trace(struct stackframe *frame, void *d) +static int __no_sanitize_address save_trace(struct stackframe *frame, void *d) { struct stack_trace_data *data = d; struct stack_trace *trace = data->trace; -- 2.7.4