[Libguestfs] [PATCH] daemon: ldm: avoid manual free()

Pino Toscano ptoscano at redhat.com
Mon Nov 6 11:48:59 UTC 2017


On Friday, 3 November 2017 22:25:03 CET Richard W.M. Jones wrote:
> On Fri, Nov 03, 2017 at 05:31:19PM +0100, Pino Toscano wrote:
> > When the LDM code was converted to the CLEANUP_* macros, a free()
> > invocation for a CLEANUP_FREE variable was left in the
> > ldmtool_diskgroup_volumes implementation, causing double-free on
> > success.
> > 
> > Updates commit 950951c67de61da27dceca8ffb2079031c13e43b.
> > ---
> >  daemon/ldm.c | 1 -
> >  1 file changed, 1 deletion(-)
> > 
> > diff --git a/daemon/ldm.c b/daemon/ldm.c
> > index 1bab28989..2f4d2aef3 100644
> > --- a/daemon/ldm.c
> > +++ b/daemon/ldm.c
> > @@ -286,7 +286,6 @@ do_ldmtool_diskgroup_volumes (const char *diskgroup)
> >      reply_with_error ("%s", err);
> >      return NULL;
> >    }
> > -  free (err);
> >  
> >    return parse_json_get_object_string_list (out, "volumes",
> >                                              __func__, "ldmtool show diskgroup");
> 
> Ouch.  I guess we don't test this API ..?

I'm afraid there are no tests for any of the ldmtool APIs.

-- 
Pino Toscano
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