Re: [PATCH 01/11] media: tm6000: fix potential Spectre variant 1

[Gustavo A. R. Silva]

On 05/17/2018 07:13 AM, Mauro Carvalho Chehab wrote:
> Em Thu, 17 May 2018 08:43:24 -0300
> Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx> escreveu:
>
> > > > > On 05/15/2018 02:39 PM, Dan Carpenter wrote:
> > >    
> > > > > > You'd need to rebuild the db (possibly twice but definitely once).
> > >
> > > How? Here, I just pull from your git tree and do a "make". At most,
> > > make clean; make.
> >
> > Never mind. Found it using grep. I'm running this:
> >
> > 	make allyesconfig
> > 	/devel/smatch/smatch_scripts/build_kernel_data.sh
> > 	/devel/smatch/smatch_scripts/build_kernel_data.sh
>
> It seems that something is broken... getting this error/warning:
>
> DBD::SQLite::db do failed: unrecognized token: "'end + strlen("
> " at /devel/smatch/smatch_scripts/../smatch_data/db/fill_db_sql.pl line 32, <WARNS> line 2938054.

Yep. I get the same warning multiple times.

BTW, Mauro, you sent a patch to fix an spectre v1 issue in this file 
yesterday: dvb_ca_en50221.c:1480, but it seems there is another instance 
of the same issue some lines above:

diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c 
b/drivers/media/dvb-core/dvb_ca_en50221.c
index 1310526..7edd9db 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -1398,6 +1398,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct file 
*file,

                info->type = CA_CI_LINK;
                info->flags = 0;
+               slot = array_index_nospec(slot, ca->slot_count + 1);
                sl = &ca->slot_info[slot];
                if ((sl->slot_state != DVB_CA_SLOTSTATE_NONE) &&
                    (sl->slot_state != DVB_CA_SLOTSTATE_INVALID)) {


Thanks
--
Gustavo