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 BEB90C4332F for ; Fri, 3 Nov 2023 08:08:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235144AbjKCIIM (ORCPT ); Fri, 3 Nov 2023 04:08:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234700AbjKCIIL (ORCPT ); Fri, 3 Nov 2023 04:08:11 -0400 Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DE8E1A8 for ; Fri, 3 Nov 2023 01:08:05 -0700 (PDT) Received: by mail-oo1-f70.google.com with SMTP id 006d021491bc7-581e2c9197bso2059791eaf.3 for ; Fri, 03 Nov 2023 01:08:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698998884; x=1699603684; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=1vzpiNs11OCFyo86okXzyCcFWMl5sk1XqF/aGmxiItI=; b=haRwfpw081HcATtKAvLgl2K2v7o4P7AUnYPRCNYEt9t17BgwKnXSvJZoH9aGwMuJo4 yZvTsVxS9hhPxXl+KiCcBdtE250dwi5TxZn5mOE9U0B4J4Y/Zcyl/+FgCePyVKuNWJXn IzUU7on/zn/X0fzAbhTQY3jOKAHLYXwAzBVTdB5A+vwzh2PiOzjGDkNoKIthqSX/nC+s 1Jv0C4yqAkQAyu34TQF+FxtI/SHBZwJP2h7p3hH5ys81MNY7l2zJiPbKZdU9+3Zm8lg+ WJEFIizzJyanPWmFkSRCg/LsLxRZM4P8SBTI95Z5/ecpd2GWCT675Im+bEKRxNx3CTv0 WvLQ== X-Gm-Message-State: AOJu0YwnAetZOPOGIvuT15a4tqOw86xJtRUwWCkPOmJL7NK/qpUU2snH OYPwSlE2z8D5Y0E9Pmat8ZjoW6uIncTxfMqdE0YsQljkSzWuwr4= X-Google-Smtp-Source: AGHT+IHDoeC9Z4hr+t02tHEIkfzUhcpmMx69a/RKt6dd82yYqG/wTRGtVNwWcl8D/mkjZnEP5RY1JnN8OQWy0gTHsGzHn48BDB7L MIME-Version: 1.0 X-Received: by 2002:a05:6870:6193:b0:1e9:7407:b4cd with SMTP id a19-20020a056870619300b001e97407b4cdmr9737964oah.4.1698998884193; Fri, 03 Nov 2023 01:08:04 -0700 (PDT) Date: Fri, 03 Nov 2023 01:08:04 -0700 In-Reply-To: <20231103075800.3488232-1-lizhi.xu@windriver.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f75b0c06093b006d@google.com> Subject: Re: [syzbot] [iommu?] KASAN: slab-use-after-free Read in iommufd_vfio_ioas From: syzbot To: linux-kernel@vger.kernel.org, lizhi.xu@windriver.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot tried to test the proposed patch but the build/boot failed: ./include/linux/stddef.h:8:14: error: incompatible types when assigning to type 'struct iommufd_object' from type 'void *' Tested on: commit: 2af9b20d Merge tag 'x86-urgent-2023-10-28' of git://gi.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git kernel config: https://syzkaller.appspot.com/x/.config?x=cb98fe061049a6e4 dashboard link: https://syzkaller.appspot.com/bug?extid=d31adfb277377ef8fcba compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=178165a0e80000