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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1E13C4167B for ; Tue, 28 Nov 2023 21:40:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345668AbjK1Vjz (ORCPT ); Tue, 28 Nov 2023 16:39:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33930 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234863AbjK1Vjw (ORCPT ); Tue, 28 Nov 2023 16:39:52 -0500 X-Greylist: delayed 576 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 28 Nov 2023 13:39:59 PST Received: from mr85p00im-zteg06011601.me.com (mr85p00im-zteg06011601.me.com [17.58.23.186]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7FA6699 for ; Tue, 28 Nov 2023 13:39:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=danm.net; s=sig1; t=1701207022; bh=8EgrIGGkKnoJKisc1H42SGVc/w0J4XCT9HdiJld5EXw=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=IwyqayvjwD1xQmxscxr7LH4lWhHQ1vHpJOMcjhUUCEmDvIifRESLlm644nFnA0OVf wBAq/gd/5TqPhxBy7W2DoQNU375PVThmJkVNuiJTDdTUvx+jzksH3cwKZsJzKFVkC9 XspyLNimzZg1CuYKRCg0J4r1eiZ4plFnooZ8kGcw5yYlAJGS7uahT0B9heCYUzGDEP Kq5kypb9omKe4li/vOQ6wzzdD2REKbvp/2WkQctaofNRlRpNMIOy5iTESe/K510XiV idF806M3ZTSjv0n+YsBNZX53J8oRLTomrzcxpTSXl4Nb9yrqltnMgNm4IuYcKZqys7 VN/HFGzvy2h1w== Received: from hitch.danm.net (mr38p00im-dlb-asmtp-mailmevip.me.com [17.57.152.18]) by mr85p00im-zteg06011601.me.com (Postfix) with ESMTPSA id 6B4D71804BF; Tue, 28 Nov 2023 21:30:20 +0000 (UTC) From: dan@danm.net To: toralf.foerster@gmx.de Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: 6.5.13 regression: BUG: kernel NULL pointer dereference, address: 0000000000000020 Date: Tue, 28 Nov 2023 14:30:18 -0700 Message-ID: <20231128213018.6896-1-dan@danm.net> X-Mailer: git-send-email 2.41.0 In-Reply-To: <2b5d6cd4-0afb-4193-ab88-235f910a7293@gmx.de> References: <2b5d6cd4-0afb-4193-ab88-235f910a7293@gmx.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: yHOGWyb5AYz0eJuRV1grMCXODbeaoiHr X-Proofpoint-GUID: yHOGWyb5AYz0eJuRV1grMCXODbeaoiHr X-Proofpoint-Virus-Version: =?UTF-8?Q?vendor=3Dfsecure_engine=3D1.1.170-22c6f66c430a71ce266a39bfe25bc?= =?UTF-8?Q?2903e8d5c8f:6.0.138,18.0.572,17.11.62.513.0000000_definitions?= =?UTF-8?Q?=3D2020-02-14=5F11:2020-02-14=5F02,2020-02-14=5F11,2021-12-02?= =?UTF-8?Q?=5F01_signatures=3D0?= X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=470 malwarescore=0 spamscore=0 clxscore=1030 bulkscore=0 adultscore=0 phishscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2311280171 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'm seeing this too, but on 6.6.3 (6.6.2 is fine). Bisected it down to commit 2e8b4e0992e16 ("gcc-plugins: randstruct: Only warn about true flexible arrays"). Reverting that commit on top of v6.6.3 makes it go away. I do wonder if content such as that (which *looks* like it's purely preparing for future changes) is appropriate for the stable trees. Cheers, -- Dan