diff options
| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-05 09:42:22 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-05 09:42:22 -0200 |
| commit | 667c952e7191ffb0a2703c8e173b0d5f0231a764 (patch) | |
| tree | 7f1f65e6053d451d7d4b68f3a79a7ce5b7243362 | |
| parent | b9f62ffe05e4019da205d6fec244226b191c5242 (diff) | |
[media] cx22700: Fix potential buffer overflow
As new FEC types were added, we need a check to avoid overflows:
drivers/media/dvb-frontends/cx22700.c:172 cx22700_set_tps() error: buffer overflow 'fec_tab' 6 <= 6
drivers/media/dvb-frontends/cx22700.c:173 cx22700_set_tps() error: buffer overflow 'fec_tab' 6 <= 6
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| -rw-r--r-- | drivers/media/dvb-frontends/cx22700.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/cx22700.c b/drivers/media/dvb-frontends/cx22700.c index 3d399d9a6343..86563260d0f2 100644 --- a/drivers/media/dvb-frontends/cx22700.c +++ b/drivers/media/dvb-frontends/cx22700.c @@ -169,6 +169,9 @@ static int cx22700_set_tps(struct cx22700_state *state, cx22700_writereg (state, 0x04, val); + if (p->code_rate_HP - FEC_1_2 >= sizeof(fec_tab) || + p->code_rate_LP - FEC_1_2 >= sizeof(fec_tab)) + return -EINVAL; val = fec_tab[p->code_rate_HP - FEC_1_2] << 3; val |= fec_tab[p->code_rate_LP - FEC_1_2]; |