From patchwork Fri Nov 1 22:11:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 11223843 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C4D0614DB for ; Fri, 1 Nov 2019 22:14:43 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8DA6721897 for ; Fri, 1 Nov 2019 22:14:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="hqtdT2ru"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="oC92Xyk4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8DA6721897 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:From:Subject:References:Mime-Version :Message-Id:In-Reply-To:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hhsdEGLG1WjYd1F1gI3KUetOtPvYMBYXvZKv/omyacM=; b=hqtdT2ruWy7gY+ GUvfC29QPekI9UrElTfhQoUQHEEhUJv+2p12hKGO/PEvwk6L/B6WoePS7oP4GCprjli1La407h5Cf lln0aqA+3FuH/3FXwxkZ0eTwYmmzH+iNfIVq9wv8J9pg6Vlu+yZvhwN6ewgoJeTrGoyVuWCY8PWV6 noFeXR5m9GHbkUZ4qddP11vE2bOIMY8mykCyRSCDcbOG0dDTbAWepqxdPTqbYkhmhDJb2uWgI++jc AyI2WKGUYml7rtdtBERLE1lT4euwQ1KLbdp5mBcXVAmoo9SIYOI9rXTh1sZMkEgT0PNblz1lTo9En s1c4QpssTaqFG/hp95xg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iQfBq-0001u5-6b; Fri, 01 Nov 2019 22:14:42 +0000 Received: from mail-pl1-x64a.google.com ([2607:f8b0:4864:20::64a]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iQf9Y-00081H-Oi for linux-arm-kernel@lists.infradead.org; Fri, 01 Nov 2019 22:12:22 +0000 Received: by mail-pl1-x64a.google.com with SMTP id p14so7168657plq.2 for ; Fri, 01 Nov 2019 15:12:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=YuceP/m4Sv7I7vrWsOPJ1pSb3CxvhwOwQ1OQoGSTS4o=; b=oC92Xyk4xx4OFjCywUW0xRGLKJPopJyks6H3DIWfvMcqM41QRHY8A6HpLSO2oO1inw 7nVZsYb0ejRziH+5dLCL9D9wKeQQKeMEb1VUrkYc1cMPvyFcm3It+tNXG+Hwcj7gshxb 6nHSjR+gi4hodQFSJLJDhZIR1+Kzve8eUQ6q7dVUcbIISZ2N2+mSkGwMJQvydH28gjMd oRMh4SmcetuL5E9614gPeg7eJPENTgrxaRMgcD0aWe9YQNHjd9wnZeZVxQ0kRl59z7of 8623sjz/SPs/pQv7SS4ugqqYKNBb1daNI8KHgf/+dBsRhEhkLc4Q35KQzw9rmfiSpNPD e0Yw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=YuceP/m4Sv7I7vrWsOPJ1pSb3CxvhwOwQ1OQoGSTS4o=; b=ltHgV7aGUDYSdJYqiyWxgJU99vc+cqgONydll7i0Bul+XT3IAoizVhWMgESk5YBqfk T3UCoezJG+uGA1QXLKQtKZiw/DBB3FCwfly2wq0pa0RU4L6foIgDPAEVF5jv4czKlnjB 8MLeicS8Y3va6ntJ9NhYbkFNPKxdKWRM4OPNMcLoPORWrFUQM1I+LJpLiwciau5xiOyP whv5238ILHM3tm5gt+SttCDRKx6ErcbWDH6kWt+yRMzheZN92ydvgf9vbBnQNEh/exQJ gBjLek8lzd6ihjH/5UG2INHHw+ApuBoWzqJC9yUNCfBwEfcVhnSrnG5CdeQbll7qZjs/ HGsA== X-Gm-Message-State: APjAAAXLiDfLZG8Zd5Q05pBV9GbnkxXimvdj0QmSFavvW4TMw3fwqUW3 Tyvgnl6VctOymJsuEs8TY8yyYCoXTGCygA7DY8s= X-Google-Smtp-Source: APXvYqyESI1nj79EQYAfPNp7QT9azRRC93peb8wyxMPp245spxyPTFrWPJ4dhblj2gZ8cJDr8g3hFVKQrrU1shqGWxs= X-Received: by 2002:a63:2b8e:: with SMTP id r136mr2674046pgr.103.1572646338730; Fri, 01 Nov 2019 15:12:18 -0700 (PDT) Date: Fri, 1 Nov 2019 15:11:42 -0700 In-Reply-To: <20191101221150.116536-1-samitolvanen@google.com> Message-Id: <20191101221150.116536-10-samitolvanen@google.com> Mime-Version: 1.0 References: <20191018161033.261971-1-samitolvanen@google.com> <20191101221150.116536-1-samitolvanen@google.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog Subject: [PATCH v4 09/17] arm64: kprobes: fix kprobes without CONFIG_KRETPROBES From: Sami Tolvanen To: Will Deacon , Catalin Marinas , Steven Rostedt , Masami Hiramatsu , Ard Biesheuvel X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191101_151220_820834_E02685CB X-CRM114-Status: UNSURE ( 8.89 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -7.7 (-------) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-7.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:64a listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM white-list -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.0 DKIMWL_WL_MED DKIMwl.org - Medium sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Kees Cook , Jann Horn , Masahiro Yamada , Marc Zyngier , kernel-hardening@lists.openwall.com, Nick Desaulniers , linux-kernel@vger.kernel.org, Miguel Ojeda , clang-built-linux@googlegroups.com, Sami Tolvanen , Laura Abbott , Dave Martin , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This allows CONFIG_KRETPROBES to be disabled without disabling kprobes entirely. Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook --- arch/arm64/kernel/probes/kprobes.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c index c4452827419b..98230ae979ca 100644 --- a/arch/arm64/kernel/probes/kprobes.c +++ b/arch/arm64/kernel/probes/kprobes.c @@ -551,6 +551,7 @@ void __kprobes __used *trampoline_probe_handler(struct pt_regs *regs) return (void *)orig_ret_address; } +#ifdef CONFIG_KRETPROBES void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs) { @@ -564,6 +565,7 @@ int __kprobes arch_trampoline_kprobe(struct kprobe *p) { return 0; } +#endif int __init arch_init_kprobes(void) {