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Re: [PATCH 1/3] http-push: avoid invalid memory accesses

From
Johannes Schindelin <johannes.schindelin@gmx.de>
Date
Feb 16, 2008, 12:12 UTC
Message-ID
<alpine.LSU.1.00.0802161211320.30505@racer.site>
In-Reply-To
<7vabm1cqkd.fsf@gitster.siamese.dyndns.org>
Hi,
On Fri, 15 Feb 2008, Junio C Hamano wrote:
Show 35 quoted lines
> Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:
> 
> > Before objects are sent, the respective ref is locked.  However,
> > without this patch, the lock is lifted before the last object for
> > that ref was sent.  As a consequence, the lock data was accessed
> > after the lock structure was free()d.
> >
> > Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
> > ---
> >  http-push.c |    5 ++++-
> >  1 files changed, 4 insertions(+), 1 deletions(-)
> >
> > diff --git a/http-push.c b/http-push.c
> > index b2b410d..7a6c669 100644
> > --- a/http-push.c
> > +++ b/http-push.c
> > @@ -2398,7 +2398,10 @@ int main(int argc, char **argv)
> >  		fill_active_slots();
> >  		add_fill_function(NULL, fill_active_slot);
> >  #endif
> > -		finish_all_active_slots();
> > +		do {
> > +			finish_all_active_slots();
> #ifdef CURL_MULTI
> > +			fill_active_slots();
> #endif
> > +		} while (request_queue_head && !aborted);
> >  
> >  		/* Update the remote branch if all went well */
> >  		if (aborted || !update_remote(ref->new_sha1, ref_lock)) {
> > -- 
> > 1.5.4.1.1353.g0d5dd
> 
> I wonder if we should define a no-op function fill_active_slots()
> for non MULTI case...
Darn, darn, darn.  Fixing the MULTI case was on my TODO list.

Ciao, Dscho

Previous: Mike HommeyNext: Johannes Schindelin
Message 5 of 8 in “http-push fixes”
  1. 0/3 http-push fixesJohannes Schindelin, Feb 14, 2008
  2. 1/3 http-push: avoid invalid memory accessesJohannes Schindelin, Feb 14, 2008
  3. Junio C HamanoFeb 16, 2008
  4. Mike HommeyFeb 16, 2008
  5. Johannes SchindelinFeb 16, 2008
  6. 2/3 http-push: do not get confused by submodulesJohannes Schindelin, Feb 14, 2008
  7. 2/3 http-push: do not get confused by submodulesJohannes Schindelin, Feb 14, 2008
  8. 3/3 http-push: avoid a needless gotoJohannes Schindelin, Feb 14, 2008

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