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 X-Spam-Level: X-Spam-Status: No, score=-11.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD723C388F7 for ; Fri, 13 Nov 2020 09:38:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C04522268 for ; Fri, 13 Nov 2020 09:38:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="sP2UXoyA" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726667AbgKMJim (ORCPT ); Fri, 13 Nov 2020 04:38:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726387AbgKMJih (ORCPT ); Fri, 13 Nov 2020 04:38:37 -0500 Received: from mail-qt1-x842.google.com (mail-qt1-x842.google.com [IPv6:2607:f8b0:4864:20::842]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F102BC0613D1 for ; Fri, 13 Nov 2020 01:38:36 -0800 (PST) Received: by mail-qt1-x842.google.com with SMTP id 3so6271878qtx.3 for ; Fri, 13 Nov 2020 01:38:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=+nPinMUroPmGA/FkIjqQBwtdL5YldQSIOTcEcMGd2/4=; b=sP2UXoyAtZ8SikAA1SjVp8Qbu9mStc+okk5CaBBKtm6aEuLYvcn/xZmC6YYtsx6tDv JovxPRgLgng8mBgt11H0QsOGNILZX7PG+qp/gor5f+9poI80ZNmKKad28FWeogZxM4+2 JPJ9sAit/KD9in3TN4IrR6oC1r/AykE1DQsghE5pk9lNEecxVoalulS6XsLYioWn2D3e kAO9QXXyQ2PULPhUMD8wKxfmujBAMWh8do3KxILxHqvRRJRyq3ezTtSMwKuCUh/g2GN4 Msr+Ch/GaoB63BFLcwbJmwBAltaitf0oJYtoyu+beHvbGuEGhtjsVzC5lX8zokUtJJxw 4Rjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=+nPinMUroPmGA/FkIjqQBwtdL5YldQSIOTcEcMGd2/4=; b=LsoHL/Fsx0rez59u3EWtNXEyOwtl8zyBKJhmWwovtWJLilZniZFLeTQQ5LAy3DqZG6 AMbz9tDa4R5jnwQYi3yZN1SSo3m9ZX++02+dz5pQS0m2J9Ms3RYpa+VXcjzv/oD4LnP1 jwcSvxadZuVkJJfyjt8ZC8rz9M59WO2OLwpbN5omynDnqZiFOphRknsPCcFyOAXf4Ehd PcF1UBfUxGcV+za3pNI3QDYH6eelRccd7lPz86C4LYezi3Lfsg8ShS8thL7c8N182GUj 2v7FxzNEwDxh8SsgNwz5ah36F/fx5f/DWMGoRMUvC1fRLr6TvCCDjAx+U+8+SKOm+2EN hmXQ== X-Gm-Message-State: AOAM530EHWhpaVIUKL/C9ydyV/SCZ9/TI85GIHK7PfRwwulyyKXlqmc2 OHRalAG4s6BjBjHD7I1Bxjl+sXZDtQLkkA2XPfilrw== X-Google-Smtp-Source: ABdhPJyo/Cl+Ne93ZkCd4fZlwp/wG54EGnO3l6zPkSR9N43rFoK2rdDDxK08DHhrUJKQSjmiJSohka5GpTEd5MZS0y4= X-Received: by 2002:aed:2b47:: with SMTP id p65mr1051756qtd.337.1605260315929; Fri, 13 Nov 2020 01:38:35 -0800 (PST) MIME-Version: 1.0 References: <000000000000bb202905af132b8f@google.com> <0000000000004c208d05b3f8cbb6@google.com> In-Reply-To: <0000000000004c208d05b3f8cbb6@google.com> From: Dmitry Vyukov Date: Fri, 13 Nov 2020 10:38:24 +0100 Message-ID: Subject: Re: kernel panic: stack is corrupted in get_kernel_gp_address To: syzbot , LKML , syzkaller-bugs Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 13, 2020 at 9:27 AM syzbot wrote: > > syzbot suspects this issue was fixed by commit: > > commit a49145acfb975d921464b84fe00279f99827d816 > Author: George Kennedy > Date: Tue Jul 7 19:26:03 2020 +0000 > > fbmem: add margin check to fb_check_caps() > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10ff7572500000 > start commit: f4d51dff Linux 5.9-rc4 > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=a9075b36a6ae26c9 > dashboard link: https://syzkaller.appspot.com/bug?extid=d6459d8f8984c0929e54 > userspace arch: i386 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=164270dd900000 > > If the result looks correct, please mark the issue as fixed by replying with: > > #syz fix: fbmem: add margin check to fb_check_caps() > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection #syz fix: fbmem: add margin check to fb_check_caps()