diff options
| author | Laurent Pinchart <laurent.pinchart@skynet.be> | 2008-07-04 00:34:59 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-07-20 07:17:34 -0300 |
| commit | 233548a2fd934a0220db8b1521c0bc88c82e5e53 (patch) | |
| tree | ccec004dce951f73add8e3b00f672e0ea091f3bd | |
| parent | 553b9fa47d67a77f6456bc969891a347bfb323dc (diff) | |
V4L/DVB (8207): uvcvideo: Fix a buffer overflow in format descriptor parsing
Thanks to Oliver Neukum for catching and reporting this bug.
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| -rw-r--r-- | drivers/media/video/uvc/uvc_driver.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c index 60ced589f89..86bb16d0017 100644 --- a/drivers/media/video/uvc/uvc_driver.c +++ b/drivers/media/video/uvc/uvc_driver.c @@ -298,7 +298,8 @@ static int uvc_parse_format(struct uvc_device *dev, switch (buffer[2]) { case VS_FORMAT_UNCOMPRESSED: case VS_FORMAT_FRAME_BASED: - if (buflen < 27) { + n = buffer[2] == VS_FORMAT_UNCOMPRESSED ? 27 : 28; + if (buflen < n) { uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming" "interface %d FORMAT error\n", dev->udev->devnum, |