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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 B820FCA9EB0 for ; Mon, 21 Oct 2019 15:59:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8482620B7C for ; Mon, 21 Oct 2019 15:59:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Yr/Q7ZL8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729847AbfJUP7V (ORCPT ); Mon, 21 Oct 2019 11:59:21 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:31577 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726847AbfJUP7T (ORCPT ); Mon, 21 Oct 2019 11:59:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1571673558; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gB3h1+rX6SwZqtoY3Kw85+CkKWUkDR1tjhYDoTIgQqI=; b=Yr/Q7ZL8MJAVMiFbIi8tp9ibze5U2B/hU0douP+WMf2A8OP1GFsJggyWojLWSuE84t1C1T cFZ+6VubAgOafi5tZVkOLsbzjDLsEWpJI/eTtwCRFVdpzoMNLcFJM2sGt27wobMBuyR7+D Dr78NMssfcAoevfbQxOXDn9Ada7w68I= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-304-ZRM1CcYIMe2Hn_ko3VmGjA-1; Mon, 21 Oct 2019 11:59:16 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7CBA01005500; Mon, 21 Oct 2019 15:59:15 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-121-40.rdu2.redhat.com [10.10.121.40]) by smtp.corp.redhat.com (Postfix) with ESMTP id BD4756012E; Mon, 21 Oct 2019 15:59:13 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <000000000000830fe50595115344@google.com> References: <000000000000830fe50595115344@google.com> To: syzbot Cc: dhowells@redhat.com, jarkko.sakkinen@linux.intel.com, jmorris@namei.org, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, serge@hallyn.com, syzkaller-bugs@googlegroups.com Subject: Re: WARNING: refcount bug in find_key_to_update MIME-Version: 1.0 Content-ID: <8508.1571673553.1@warthog.procyon.org.uk> Date: Mon, 21 Oct 2019 16:59:13 +0100 Message-ID: <8509.1571673553@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-MC-Unique: ZRM1CcYIMe2Hn_ko3VmGjA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot wrote: > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D11c8adab600= 000 How do I tell what's been passed into the add_key for the encrypted key? David