From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755315AbbCBOc2 (ORCPT ); Mon, 2 Mar 2015 09:32:28 -0500 Received: from szxga01-in.huawei.com ([119.145.14.64]:42897 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754601AbbCBOZ5 (ORCPT ); Mon, 2 Mar 2015 09:25:57 -0500 From: Wang Nan To: , , , , CC: , , , Subject: [RFC PATCH v4 16/34] early kprobes: perhibit probing at early kprobe reserved area. Date: Mon, 2 Mar 2015 22:24:54 +0800 Message-ID: <1425306312-3437-17-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1425306312-3437-1-git-send-email-wangnan0@huawei.com> References: <1425306312-3437-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.197.247] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Puts early kprobe reserved area into kprobe blacklist. Signed-off-by: Wang Nan --- kernel/kprobes.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 2d178fc..7dbe8b2 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1405,6 +1405,12 @@ static bool within_kprobe_blacklist(unsigned long addr) if (arch_within_kprobe_blacklist(addr)) return true; +#ifdef CONFIG_EARLY_KPROBES + if (addr >= (unsigned long)__early_kprobes_start && + addr < (unsigned long)__early_kprobes_end) + return true; +#endif + if (!kprobes_blacklist_initialized) return within_kprobe_blacklist_early(addr); -- 1.8.4