From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E4F081DF991; Tue, 8 Apr 2025 14:54:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744124100; cv=none; b=bi0OdIPd07csK3ZXBsEtWblcZwkPh/76w7eF97LuwpqqE5G1Om7ZLTghRzrEbb1Ys8u2qBXBK6Wv2I0GiLNYPoTgZwHDhhJW/72d57pOXUjpw8T5CgiZZBFglYLJeu9OyjBIAwuPJpNiEqE3LxvDoVT1Nq8XTtZM3+742i0a/qg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744124100; c=relaxed/simple; bh=nZ1yhl1scTXfkiPAhPmxOZZ2j4lMgnCcL0OYg+kZnOo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=h8KakP7ANeB2wYBnFgyVsNAYEdvv94sZkehHN9+LRcV13WX3pmbQaAoIEComUhsvheuEwGV1sgEnWomECkns6ucOf7LBPX3mjSQz/+xnP6jNpX1cBAQs8YoTXV03EVuebWTxQxMi+a3MnxL5bYAENmiLgPMCYnuXHXqBopFjLFc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=hrJdad6m; arc=none smtp.client-ip=198.175.65.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="hrJdad6m" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1744124099; x=1775660099; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=nZ1yhl1scTXfkiPAhPmxOZZ2j4lMgnCcL0OYg+kZnOo=; b=hrJdad6m+u0HSoz/A+wVlEevl30pNDYgH86h6m6GrNCYKk/1a1t2HRQK HXpO2X144PRS5uXqYk9VI5oKBgqdqmNu8f47D1vQmYoTCvXKyxKRSCkeu /MI3fGOYzlUVLf7OADuG0bD/Zax+5cNXwBFnZB/0ssNsDKgpqeHIJ1pqg 6TzAdWFRSmhWWOACCDQkG1Kq/JWwCiPoxkGbe7BdzCbIa3wp/JbpDgSZs Ti0lg+42uFa/tFy+7pt4bogHMgO4StOfNoeTmqMwnvsTLJVsUfjqFH9m4 wkVEMcCGmtZ+9lqmp48JiG3r9gp0W4OhkodFPI9VNlo8QeZEIjboWO9/b A==; X-CSE-ConnectionGUID: 598SdRxUSFGYmF3DMkCd6Q== X-CSE-MsgGUID: wqli1UHVTlW9MDFYP00OpA== X-IronPort-AV: E=McAfee;i="6700,10204,11397"; a="55744639" X-IronPort-AV: E=Sophos;i="6.15,198,1739865600"; d="scan'208";a="55744639" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2025 07:54:58 -0700 X-CSE-ConnectionGUID: LXRmzx/nS3yEKVJw8+IY+A== X-CSE-MsgGUID: Pgo2jEVpQ7iIn6rvOz0LpQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,198,1739865600"; d="scan'208";a="128022280" Received: from smile.fi.intel.com ([10.237.72.58]) by orviesa009.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2025 07:54:55 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.98.2) (envelope-from ) id 1u2ALj-0000000AR1D-3Wgo; Tue, 08 Apr 2025 17:54:51 +0300 Date: Tue, 8 Apr 2025 17:54:51 +0300 From: Andy Shevchenko To: syzbot Cc: dakr@kernel.org, djrscally@gmail.com, gregkh@linuxfoundation.org, heikki.krogerus@linux.intel.com, jgg@nvidia.com, kevin.tian@intel.com, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, nicolinc@nvidia.com, rafael@kernel.org, sakari.ailus@linux.intel.com, syzkaller-bugs@googlegroups.com, yi.l.liu@intel.com Subject: Re: [syzbot] [acpi?] KASAN: slab-use-after-free Read in software_node_notify_remove Message-ID: References: <67f26778.050a0220.0a13.0265.GAE@google.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <67f26778.050a0220.0a13.0265.GAE@google.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo On Sun, Apr 06, 2025 at 04:37:28AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: acc4d5ff0b61 Merge tag 'net-6.15-rc0' of git://git.kernel... > git tree: upstream > console+strace: https://syzkaller.appspot.com/x/log.txt?x=15a807cf980000 > kernel config: https://syzkaller.appspot.com/x/.config?x=24f9c4330e7c0609 > dashboard link: https://syzkaller.appspot.com/bug?extid=2ff22910687ee0dfd48e > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=109077b0580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13717c3f980000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/e4bfa652b34a/disk-acc4d5ff.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/3d19beb8bb92/vmlinux-acc4d5ff.xz > kernel image: https://storage.googleapis.com/syzbot-assets/e7298ccc6331/bzImage-acc4d5ff.xz > > The issue was bisected to: > > commit 9eb59204d5197b4add63968c8c5b7633631f9a5a > Author: Yi Liu Liu, have you looked at the issue? It has a good reproducibility ratio and definitely something with your patch, but it might be still that it revealed a lurking bug in software node implementation or driver core, however I don't see it. -- With Best Regards, Andy Shevchenko