From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D1EE14A3E for ; Sun, 5 Jan 2025 02:39:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736044744; cv=none; b=SmtkaI8cpTNFJTOeILLdsXkulVypZTLYbNavLbDR73hqB98q/BBfute1uwVpRmIsjm30WeqEMb1e4r5yP5Ft2jI1/IZ2VAQHcAx+rqh2G15KkV9no8cVpDLSnZ0Qyg/3C+RobZbNkKFCpl3RFoPiD0Wlzq9cxMQsIcffiY2zh/I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736044744; c=relaxed/simple; bh=MelWkMasPWiWmSHAdAsLd6llNCGjfIL+rRV5OrZhUgI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ZjFakRffWDlO4sMjBhprUVI0b6Qkatp7Wjgmnk+Om5+HXimxCpPXywGMf0MR78+rzK8iOFwtqzjNXQu/4IrrN5GJ23OnL49nhToeiIw19PxvWMoQShOO2vUTR8dlgnFi51FXe39swRr0zPWm3Qmt/XKtDJcMEYCufO7vNsDbJko= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-3cdd61a97easo9967305ab.2 for ; Sat, 04 Jan 2025 18:39:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736044742; x=1736649542; h=content-transfer-encoding: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=/3ZGaQpDHwn+kOMqbOdrqyXdKStj/3L/DfaBUkPACsk=; b=csZjlDSn5NAYgyvkP9pmS8pXQKhi1rDfRpTRVfmxBig2LhVTPkN83C8KXWgcwx3ZfO oPMLexyiH5rCIk1x1aLhQ4Luz4kajLEfNmp67foRwEUF8l/g7qG2Nir5d1SX3HwUfCis Guxkgr4AKh+DyA4S7dag7s03538wq2ar/ktXm6OsCeh47rHOIWGi+rbnsI6iJpMAqJEp 8ls73DqMKMujPlg+3eiCVfCqrPcCjM9tIX17AHLG+cVZlOIo52FwPKc2y3hbS9Rr1+Er J7xDWvIZbRPDFtpo5AxHlLPAelRqwAL2aMJIqr2SXuaNPlymfhRUX0FeyA8WD01R3LjE nSaQ== X-Forwarded-Encrypted: i=1; AJvYcCVhVnUPSkVHz/bd8W70KGUHHf2AwZR+DVZa61uQmUbMB3GkfkMeWG3KRws97N/cSroN696lww2OJnul4ic=@vger.kernel.org X-Gm-Message-State: AOJu0YwenEhaJHUknnxCpmT+Yt0BPnpQhTQoHK6Q9867nTbyjWfsSJ8E 6iu6N66F5XmmSQQxk/F48IgZJWL33BY9c2qJEZdtCqMa9JW6+D7jFXkyKtn1qsG7zNO5UH5UQGu driRMLJlDDmAR0UFhyJAj420CrF0KIT77EgDKEgZDqWUrjttSfacQWn0= X-Google-Smtp-Source: AGHT+IGnZQOxn+K0xQnAjjUzBs70/r4G8o3Xv/2v82PaCqlxzzhP3EbJVOzOkoKhAAPKinkTD4Vamp9pqzR+HMmbUeEbFbLIR4BB Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:20ed:b0:3a7:e592:55ee with SMTP id e9e14a558f8ab-3c2d5724dbemr450957865ab.20.1736044741972; Sat, 04 Jan 2025 18:39:01 -0800 (PST) Date: Sat, 04 Jan 2025 18:39:01 -0800 In-Reply-To: <000000000000587e0f06112cd973@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6779f0c5.050a0220.380ff0.0008.GAE@google.com> Subject: Re: [syzbot] [dri?] divide error in drm_mode_convert_to_umode From: syzbot To: airlied@gmail.com, airlied@linux.ie, daniel.vetter@ffwll.ch, daniel.vetter@intel.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, eadavis@qq.com, jani.nikula@intel.com, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, melissa.srw@gmail.com, mripard@kernel.org, simona@ffwll.ch, syzkaller-bugs@googlegroups.com, tzimmermann@suse.de, ville.syrjala@linux.intel.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable syzbot suspects this issue was fixed by commit: commit 9398332f23fab10c5ec57c168b44e72997d6318e Author: Ville Syrj=C3=A4l=C3=A4 Date: Fri Nov 29 04:26:28 2024 +0000 drm/modes: Avoid divide by zero harder in drm_mode_vrefresh() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D1296f8b05800= 00 start commit: 1c892cdd8fe0 Merge tag 'vfs-6.8-rc6.fixes' of git://git.ke.= . git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3Deff9f3183d0a20d= d dashboard link: https://syzkaller.appspot.com/bug?extid=3D0d7a3627fb6a42cf0= 863 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D17f2fbc218000= 0 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D177bda8a180000 If the result looks correct, please mark the issue as fixed by replying wit= h: #syz fix: drm/modes: Avoid divide by zero harder in drm_mode_vrefresh() For information about bisection process see: https://goo.gl/tpsmEJ#bisectio= n