From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) by smtp.subspace.kernel.org (Postfix) with ESMTP id BB683155757 for ; Tue, 24 Sep 2024 15:08:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727190498; cv=none; b=bOp6Sz9+svKugHmcPUwAfgOYAfUiEoDSn5iUEZYsHvOK03mAxKcmXVHfNDpRsBmVmea991lzokCWk3yILo4xea8cWzctFAwlJBupdwwxqxr1S4pVuBbhEIWrEid+nhc8Uz3LtTzPbPVERgbZj04IM64hfLVR34aeOzIiUSoiWuM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727190498; c=relaxed/simple; bh=ULMko6igJvaoBCPFqT+liu0gp1Fyz0QFilrMWEkY+mU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YGDZbFLD408ICEyVG6WGwa/geiw4Fi5MMhuvRE/onIyBCCq38/CVRwlNdlrwlzaYurjuS6lEmnPl5SnwNuz0bEDNTrqEkcEbikvl9t3st7Y62Ve7ppTR9cpjGvPZbk3QV8tO4id/stuPKykM7K06lfWlP04yAv7FuYfve+ZbT4E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=SIwsw7G4; arc=none smtp.client-ip=220.197.31.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="SIwsw7G4" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Message-ID:MIME-Version: Content-Type; bh=LwfC9PTnd4pszvKr1e64PP91HM2G1SYCij7IUmOm1mM=; b=SIwsw7G4nMUwUwRWxOmqysfssBJou4zdYnrV8qODR3rZiyVLaUagsTSnYWSyzU //EOIYBVw/divRMPLHllbZTEbdnB0cKfB+08aJvxUPCLzDrIg3zkvXgs3dg8ogMK aff/KRqXp4OmEa/u26OZbIZ5XF9eTBbrvnIVGbCSHlDv0= Received: from localhost (unknown [60.168.209.67]) by gzsmtp1 (Coremail) with SMTP id sCgvCgBHqp5A0vJmpZkTAA--.4626S2; Tue, 24 Sep 2024 22:52:49 +0800 (CST) Date: Tue, 24 Sep 2024 22:52:48 +0800 From: Qianqiang Liu To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [btrfs?] [fbdev?] BUG: unable to handle kernel NULL pointer dereference in fbcon_putcs (3) Message-ID: References: <000000000000d9c6880622323052@google.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <000000000000d9c6880622323052@google.com> X-CM-TRANSID:sCgvCgBHqp5A0vJmpZkTAA--.4626S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvjxUcsqXUUUUU X-CM-SenderInfo: xtld01pldqwhxolxqiywtou0bp/1tbiLwRkambysS70lgABsN #syz test diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 3f7333dca508..fedd796c9a5c 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -847,6 +847,8 @@ static int set_con2fb_map(int unit, int newidx, int user) return err; fbcon_add_cursor_work(info); + } else if (vc) { + set_blitting_type(vc, info); } con2fb_map[unit] = newidx; -- 2.34.1