From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff King Subject: Re: [PATCHv4 3/4] bundle: don't leak an fd in case of early return Date: Fri, 1 Apr 2016 13:31:09 -0400 Message-ID: <20160401173109.GA21061@sigill.intra.peff.net> References: <1459470946-16522-1-git-send-email-sbeller@google.com> <1459470946-16522-4-git-send-email-sbeller@google.com> <20160401171535.GB20345@sigill.intra.peff.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: Stefan Beller , sunshine@sunshineco.com, git@vger.kernel.org To: Junio C Hamano X-From: git-owner@vger.kernel.org Fri Apr 01 19:31:17 2016 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1am2ui-0007Gw-LW for gcvg-git-2@plane.gmane.org; Fri, 01 Apr 2016 19:31:17 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753391AbcDARbN (ORCPT ); Fri, 1 Apr 2016 13:31:13 -0400 Received: from cloud.peff.net ([50.56.180.127]:42559 "HELO cloud.peff.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752287AbcDARbM (ORCPT ); Fri, 1 Apr 2016 13:31:12 -0400 Received: (qmail 11937 invoked by uid 102); 1 Apr 2016 17:31:11 -0000 Received: from Unknown (HELO peff.net) (10.0.1.2) by cloud.peff.net (qpsmtpd/0.84) with SMTP; Fri, 01 Apr 2016 13:31:11 -0400 Received: (qmail 27674 invoked by uid 107); 1 Apr 2016 17:31:12 -0000 Received: from sigill.intra.peff.net (HELO sigill.intra.peff.net) (10.0.0.7) by peff.net (qpsmtpd/0.84) with SMTP; Fri, 01 Apr 2016 13:31:12 -0400 Received: by sigill.intra.peff.net (sSMTP sendmail emulation); Fri, 01 Apr 2016 13:31:09 -0400 Content-Disposition: inline In-Reply-To: Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: On Fri, Apr 01, 2016 at 10:29:51AM -0700, Junio C Hamano wrote: > > This does still suffer from the double-close I mentioned earlier. I'm > > not sure if we want to address that or not. > > Something like this on top? > > bundle.c | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > > diff --git a/bundle.c b/bundle.c > index 08e32ca..bbf4efa 100644 > --- a/bundle.c > +++ b/bundle.c > @@ -453,8 +453,10 @@ int create_bundle(struct bundle_header *header, const char *path, > goto err; > > /* write pack */ > - if (write_pack_data(bundle_fd, &revs)) > + if (write_pack_data(bundle_fd, &revs)) { > + bundle_fd = -1; /* already closed by the above call */ > goto err; > + } > > if (!bundle_to_stdout) { > if (commit_lock_file(&lock)) > @@ -463,7 +465,8 @@ int create_bundle(struct bundle_header *header, const char *path, > return 0; > err: > if (!bundle_to_stdout) { > - close(bundle_fd); > + if (0 <= bundle_fd) > + close(bundle_fd); > rollback_lock_file(&lock); Yep, that looks fine. -Peff