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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id E1A7AC433FE for ; Mon, 24 Jan 2022 09:57:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=7ckeBtJpySmmy1Ks3vSuBchrT46ICHO5VfgbnZsHkzI=; b=Ugrrmm03N/91/j OtYJWSqAw8hlOjcG5hMqDqPOhFdN92DJekSkOHOlmBX4gVAsXdlwZrn7usSbxn+61tCTCRbZu0FaL 77SY2BKlijnhNZiEoBpsmnGIgx0AVGKKMXhvaABPZ/KfOc3azEyRXkc6DO++h1627Q1GWS8dWFsmz zwl8kIsJBMbpm/XylMIhNMWQEmmbwXpL2ZnFoLW/M2Pyx2VwkTz5taP8xa+QKU/URDugqXza8TO4o gsRK90lVLslQzloSKs6gsyQC+q2r5RWAMRL7WD1U30u1sbyKy74JG+saUT0SRdrEyWllBVHh9BiqK w0pEsjN2eaW7ormh4eMw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nBw5B-002seV-8B; Mon, 24 Jan 2022 09:56:17 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nBw57-002sdR-QG for linux-arm-kernel@lists.infradead.org; Mon, 24 Jan 2022 09:56:15 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id CBF41B808C9; Mon, 24 Jan 2022 09:56:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 03F97C340E1; Mon, 24 Jan 2022 09:56:08 +0000 (UTC) Date: Mon, 24 Jan 2022 09:56:05 +0000 From: Catalin Marinas To: Evgenii Stepanov Cc: Will Deacon , Mark Rutland , Ard Biesheuvel , Robin Murphy , Jisheng Zhang , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] arm64: extable: fix null deref in load_unaligned_zeropad. Message-ID: References: <20220122023447.1480995-1-eugenis@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220122023447.1480995-1-eugenis@google.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220124_015614_029004_4501E4E8 X-CRM114-Status: GOOD ( 10.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jan 21, 2022 at 06:34:47PM -0800, Evgenii Stepanov wrote: > ex_handler_load_unaligned_zeropad extracts the source and data register > numbers from the wrong field of the exception table. Could you please also include the stack dump if you get one from the null pointer dereference? > Fixes: 753b3236 This should be expanded: Fixes: 753b32368705 ("arm64: extable: add load_unaligned_zeropad() handler") Cc: # 5.16.x Thanks. -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel