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=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_2 autolearn=unavailable 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 C23D6C433FF for ; Thu, 8 Aug 2019 11:17:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 988772187F for ; Thu, 8 Aug 2019 11:17:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565263045; bh=EgmzTvbmBPtgyJmYpImp81JbvFmYHBfzw7jbIIcUCDI=; h=Subject:From:To:Cc:Date:In-Reply-To:References:List-ID:From; b=s88Vm3gsPsLEP+oUJ6wb0PCbzcSzQbc+MYKPRVh7sWIhO5CAz3uvsapM1C4TVH0Lf fCdUew8InZ4j0tEdvcz7dAUjI3kQvwh65kjCYsgAJIP4JQOI+w3B+qcAqjFxtpFr8u wOabPz5x+tZGcYskNKtoP6X3fjBdJmItNezOtBY8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731487AbfHHLRZ (ORCPT ); Thu, 8 Aug 2019 07:17:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:45044 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730722AbfHHLRZ (ORCPT ); Thu, 8 Aug 2019 07:17:25 -0400 Received: from localhost.localdomain (ool-18bba523.dyn.optonline.net [24.187.165.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AB459216C8; Thu, 8 Aug 2019 11:17:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565263044; bh=EgmzTvbmBPtgyJmYpImp81JbvFmYHBfzw7jbIIcUCDI=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=okDjrn1P8Gj8H4K5zBGi+k4oVfmwUO2LCPYquP2801qQ22GoIsWryj5FZmEKRS88q lpCPRbLxHDbeAT+1ccqMJXswwIDg4OsH/vV/pFv5q4ciTAUbHK7pNsAL7mmC/2NMOV qjJPuRCnwyAWXNmdX5bHA0opjXIHoN5HUOna1qjE= Message-ID: <1565263042.4220.25.camel@kernel.org> Subject: Re: [PATCH] ima: Fix a use after free in ima_read_modsig() From: Mimi Zohar To: Dan Carpenter , Thiago Jung Bauermann Cc: Dmitry Kasatkin , James Morris , "Serge E. Hallyn" , linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, kernel-janitors@vger.kernel.org Date: Thu, 08 Aug 2019 07:17:22 -0400 In-Reply-To: <20190808103310.GC30506@mwanda> References: <20190808103310.GC30506@mwanda> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.20.5 (3.20.5-1.fc24) Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: On Thu, 2019-08-08 at 13:33 +0300, Dan Carpenter wrote: > This code frees "hdr" and then dereferences it on the next line to get > the error code. > > Fixes: 39b07096364a ("ima: Implement support for module-style appended signatures") > Signed-off-by: Dan Carpenter Thanks, Dan.  Julia already reported this.  Thiago posted a patch last night.  Just getting to it now.  Can I add your Reviewed-by or Tested- by? Mimi