diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ioctl.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 9d3e46c446a..8f388ff31eb 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -157,8 +157,7 @@ static const char *v4l2_memory_names[] = { [V4L2_MEMORY_OVERLAY] = "overlay", }; -#define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ - arr[a] : "unknown") +#define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown") /* ------------------------------------------------------------------ */ /* debug help functions */ @@ -2188,6 +2187,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, int ret = 0; switch (cmd) { + case VIDIOC_PREPARE_BUF: case VIDIOC_QUERYBUF: case VIDIOC_QBUF: case VIDIOC_DQBUF: { @@ -2211,6 +2211,10 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, struct v4l2_subdev_edid *edid = parg; if (edid->blocks) { + if (edid->blocks > 256) { + ret = -EINVAL; + break; + } *user_ptr = (void __user *)edid->edid; *kernel_ptr = (void *)&edid->edid; *array_size = edid->blocks * 128; |