From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40780) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YMNBo-0004YD-VE for qemu-devel@nongnu.org; Fri, 13 Feb 2015 15:50:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YMNBk-0007Im-N0 for qemu-devel@nongnu.org; Fri, 13 Feb 2015 15:50:16 -0500 Received: from mail-we0-x22e.google.com ([2a00:1450:400c:c03::22e]:52090) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YMNBk-0007Ia-G9 for qemu-devel@nongnu.org; Fri, 13 Feb 2015 15:50:12 -0500 Received: by mail-we0-f174.google.com with SMTP id w55so18950575wes.5 for ; Fri, 13 Feb 2015 12:50:11 -0800 (PST) Sender: Paolo Bonzini Message-ID: <54DE637E.7070007@redhat.com> Date: Fri, 13 Feb 2015 21:50:06 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <1423710317-15832-1-git-send-email-jasowang@redhat.com> In-Reply-To: <1423710317-15832-1-git-send-email-jasowang@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH] virtio: validate the existence of handle_output before calling it List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jason Wang , qemu-devel On 12/02/2015 04:05, Jason Wang wrote: > We don't validate the existence of handle_output which may let a buggy > guest to trigger a SIGSEV easily. Fix this by validate its existence > before. > > Cc: qemu-stable@nongnu.org > Cc: Anthony Liguori > Cc: Michael S. Tsirkin > Signed-off-by: Jason Wang Which queue was causing this? Paolo