Re: [PATCH] QuarkSocPkg/QNCSmmDispatcher: Fix use after free issue #2

["Kinney, Michael D" <michael.d.kinney@intel.com>]

Pushed as 4e33ff75d9

> -----Original Message-----
> From: Kinney, Michael D
> Sent: Wednesday, August 16, 2017 7:41 PM
> To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> devel@lists.01.org; Kinney, Michael D
> <michael.d.kinney@intel.com>
> Cc: Steele, Kelly <kelly.steele@intel.com>
> Subject: RE: [PATCH] QuarkSocPkg/QNCSmmDispatcher: Fix use
> after free issue #2
> 
> Marvin,
> 
> Thanks for the fix!
> 
> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
> 
> I will push shortly.
> 
> Mike
> 
> > -----Original Message-----
> > From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> > Sent: Thursday, July 20, 2017 11:12 PM
> > To: edk2-devel@lists.01.org
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Steele,
> > Kelly <kelly.steele@intel.com>
> > Subject: [PATCH] QuarkSocPkg/QNCSmmDispatcher: Fix use after
> > free issue #2
> >
> > As part of commit 5f82e02, ActiveRecordInDb was introduced
> as
> > a copy
> > of RecordInDb as latter may be freed by the callback
> function.
> > This
> > commit replaces an access of RecordInDb after the callback
> > function
> > has been executed with an access to ActiveRecordInDb.
> >
> > Contributed-under: TianoCore Contribution Agreement 1.1
> > Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> > ---
> >
> >
> QuarkSocPkg/QuarkNorthCluster/Smm/DxeSmm/QncSmmDispatcher/QNCS
> > mmCore.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git
> >
> a/QuarkSocPkg/QuarkNorthCluster/Smm/DxeSmm/QncSmmDispatcher/QN
> > CSmmCore.c
> >
> b/QuarkSocPkg/QuarkNorthCluster/Smm/DxeSmm/QncSmmDispatcher/QN
> > CSmmCore.c
> > index c2f75f86647a..29ad5f493466 100644
> > ---
> >
> a/QuarkSocPkg/QuarkNorthCluster/Smm/DxeSmm/QncSmmDispatcher/QN
> > CSmmCore.c
> > +++
> >
> b/QuarkSocPkg/QuarkNorthCluster/Smm/DxeSmm/QncSmmDispatcher/QN
> > CSmmCore.c
> > @@ -758,7 +758,7 @@ QNCSmmCoreDispatcher (
> >              }
> >            }
> >
> > -          if (RecordInDb->ClearSource == NULL) {
> > +          if (ActiveRecordInDb.ClearSource == NULL) {
> >              //
> >              // Clear the SMI associated w/ the source using
> > the default function
> >              //
> > --
> > 2.12.2.windows.2