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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-07-04 12:48:35 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-08-02 21:21:39 +0300 |
| commit | 6706fe55af6fc2bcb069a77620ae38662bf09d1c (patch) | |
| tree | 4690722c20a18b4a5b8e4c36fcaea1f872a890c7 /drivers/media/dvb-core | |
| parent | 320905baa1dbddd3991c287432176d536e1d5b79 (diff) | |
| download | linux-6706fe55af6fc2bcb069a77620ae38662bf09d1c.tar.xz | |
media: dvb_ca_en50221: off by one in dvb_ca_en50221_io_do_ioctl()
The > should be >= so we don't read one element beyond the end of the
ca->slot_info[] array. The array is allocated in dvb_ca_en50221_init().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/dvb-core')
| -rw-r--r-- | drivers/media/dvb-core/dvb_ca_en50221.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c index 1310526b0d49..4d371cea0d5d 100644 --- a/drivers/media/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb-core/dvb_ca_en50221.c @@ -1391,7 +1391,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file, struct dvb_ca_slot *sl; slot = info->num; - if ((slot > ca->slot_count) || (slot < 0)) { + if ((slot >= ca->slot_count) || (slot < 0)) { err = -EINVAL; goto out_unlock; } |