diff options
Diffstat (limited to 'drivers/media/video/zoran')
| -rw-r--r-- | drivers/media/video/zoran/zoran_device.c | 2 | ||||
| -rw-r--r-- | drivers/media/video/zoran/zoran_driver.c | 20 |
2 files changed, 17 insertions, 5 deletions
diff --git a/drivers/media/video/zoran/zoran_device.c b/drivers/media/video/zoran/zoran_device.c index e86173b..a4cd504 100644 --- a/drivers/media/video/zoran/zoran_device.c +++ b/drivers/media/video/zoran/zoran_device.c @@ -542,11 +542,9 @@ void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count) u32 *mask; int x, y, width, height; unsigned i, j, k; - u32 reg; /* fill mask with one bits */ memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT); - reg = 0; for (i = 0; i < count; ++i) { /* pick up local copy of clip */ diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c index 4c09ab7..c573109 100644 --- a/drivers/media/video/zoran/zoran_driver.c +++ b/drivers/media/video/zoran/zoran_driver.c @@ -1131,8 +1131,14 @@ static int setup_fbuffer(struct zoran_fh *fh, } -static int setup_window(struct zoran_fh *fh, int x, int y, int width, int height, - struct v4l2_clip __user *clips, int clipcount, void __user *bitmap) +static int setup_window(struct zoran_fh *fh, + int x, + int y, + int width, + int height, + struct v4l2_clip __user *clips, + unsigned int clipcount, + void __user *bitmap) { struct zoran *zr = fh->zr; struct v4l2_clip *vcp = NULL; @@ -1155,6 +1161,14 @@ static int setup_window(struct zoran_fh *fh, int x, int y, int width, int height return -EINVAL; } + if (clipcount > 2048) { + dprintk(1, + KERN_ERR + "%s: %s - invalid clipcount\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + /* * The video front end needs 4-byte alinged line sizes, we correct that * silently here if necessary @@ -1218,7 +1232,7 @@ static int setup_window(struct zoran_fh *fh, int x, int y, int width, int height (width * height + 7) / 8)) { return -EFAULT; } - } else if (clipcount > 0) { + } else if (clipcount) { /* write our own bitmap from the clips */ vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4)); if (vcp == NULL) { |