diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-04-24 05:46:27 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-29 10:24:24 +0100 |
| commit | 190c1d6c90dc347ea55467d51b5b536ec68f4370 (patch) | |
| tree | e51cd69d0b8c2bf73fd2e2a5ab7c2519b4508d38 /drivers/media | |
| parent | f222b8962fed5611bdb1b86b91fd87b4e6570495 (diff) | |
media: davinci/vpbe: array underflow in vpbe_enum_outputs()
[ Upstream commit b72845ee5577b227131b1fef23f9d9a296621d7b ]
In vpbe_enum_outputs() we check if (temp_index >= cfg->num_outputs) but
the problem is that "temp_index" can be negative. This patch changes
the types to unsigned to address this array underflow bug.
Fixes: 66715cdc3224 ("[media] davinci vpbe: VPBE display driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/davinci/vpbe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/platform/davinci/vpbe.c b/drivers/media/platform/davinci/vpbe.c index abce9c4a1a8e..59518c08528b 100644 --- a/drivers/media/platform/davinci/vpbe.c +++ b/drivers/media/platform/davinci/vpbe.c @@ -130,7 +130,7 @@ static int vpbe_enum_outputs(struct vpbe_device *vpbe_dev, struct v4l2_output *output) { struct vpbe_config *cfg = vpbe_dev->cfg; - int temp_index = output->index; + unsigned int temp_index = output->index; if (temp_index >= cfg->num_outputs) return -EINVAL; |