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=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL autolearn=ham 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 1C754C4361B for ; Fri, 18 Dec 2020 15:28:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B1E6323B45 for ; Fri, 18 Dec 2020 15:28:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726321AbgLRP2r (ORCPT ); Fri, 18 Dec 2020 10:28:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725878AbgLRP2r (ORCPT ); Fri, 18 Dec 2020 10:28:47 -0500 Received: from mail-qt1-x832.google.com (mail-qt1-x832.google.com [IPv6:2607:f8b0:4864:20::832]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5C19C0617A7 for ; Fri, 18 Dec 2020 07:28:06 -0800 (PST) Received: by mail-qt1-x832.google.com with SMTP id 2so1484845qtt.10 for ; Fri, 18 Dec 2020 07:28:06 -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 :cc; bh=j3vBoddoAjf0IFyLATEzp2b+bWulu7D90uXUHegOXUg=; b=Si3oD44qeMyvjKcsH1+EDZWe5MQCPYs0WMqv6g7C6ZiGuj/z/vCP+x3cm/dPnUF2gw xz6pzCYoLKvC5uJBGAdDenkv029H1YsBVHcb4wDJVVQLlDYGrUPrciWoo/pb6jF22IN3 v3hPs4FMysZym/YA71fhD38dRDVOJL7opsh2hIEIV2Qk5qGZyv/SP8+8065Ah230mK61 T7RI1yQORhwXjgbifG0VISdHByeo6z1aW2vbFcFQZMufqjDPe4QHbRlEZExb0BbzaaEO 2ncCXZgk2KfCkwTk9CuE5nTxRwKHDobAsHeb+XkBpCLb8BWEtmBZ7x4CbjTNQKC5Cz3+ f//w== 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:cc; bh=j3vBoddoAjf0IFyLATEzp2b+bWulu7D90uXUHegOXUg=; b=HpAk0P9o88xYVNbZIeVtYEV+5mGUVi2Yz4FXriBgr37cK1tfzn5tjiFv4Zgwb1vJnk r6VD2VSv+Zusccwvqq4n78Myk89tCeYQdqYWIYMJkHUluLFSa/YiEY4givimwI1zv8TZ pSO+/+KVuFJQsXK1lkMdffY4KlmPCwsitYZZPVrcsdDN3YPNYe6pT++ol+bsPeVLyH+B uSITZTacLN2LQnx/n0KXdU9DbhV+8E1cYQQiCch294LJa+DJ+1oPsbnrwXaeGUQcYLs/ Sqw3HnC+LF9Ax/QrDp+FP7OpH/WlW1Ur9w2HZ5DjjIwUjzHUnnHvbJVSOIOvKbs2pB24 sNXg== X-Gm-Message-State: AOAM532Xv6ybR14UZGiYowZZRDk7b2w+zH0OMxmEyM9KBqOsrBYz7+Ae YthfmNM/r0bznXo2WPbxyYtcKoXUyQkbdnI6YqaPTQ== X-Google-Smtp-Source: ABdhPJwW7m310B422NM+6uj5jd7lHxdtuQKuwhcqifNW0uu9yiOzNdR5vQRKoj3vZDABn1uaGcu1OlzjycvZ6jx9qzg= X-Received: by 2002:ac8:4e1c:: with SMTP id c28mr4466988qtw.67.1608305285772; Fri, 18 Dec 2020 07:28:05 -0800 (PST) MIME-Version: 1.0 References: <000000000000b30cad05b0fc3d74@google.com> <000000000000fbf57305b6beb939@google.com> In-Reply-To: <000000000000fbf57305b6beb939@google.com> From: Dmitry Vyukov Date: Fri, 18 Dec 2020 16:27:53 +0100 Message-ID: Subject: Re: BUG: unable to handle kernel paging request in cfb_imageblit To: syzbot Cc: Bartlomiej Zolnierkiewicz , Dan Carpenter , DRI , George Kennedy , Linux Fbdev development list , LKML , syzkaller-bugs Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org On Fri, Dec 18, 2020 at 4:26 PM 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=1149f30f500000 > start commit: 22fbc037 Merge tag 'for-linus' of git://git.kernel.org/pub.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=4e672827d2ffab1f > dashboard link: https://syzkaller.appspot.com/bug?extid=dfd0b1c6705301cc4847 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11ba9a5d900000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17cfd4af900000 > > 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()