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| author | Andy Walls <awalls@radix.net> | 2009-07-23 21:51:29 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-08-13 20:39:02 -0300 |
| commit | 225aeb1c5863bc92c6bb1f921e9a6cf4d15dbb2a (patch) | |
| tree | 1488e271a171fdbaacf2eaa19f894bf1b7f1b011 | |
| parent | ed18d0c87ee0ab6e0985d83c19cd135b1bd54998 (diff) | |
| download | lwn-225aeb1c5863bc92c6bb1f921e9a6cf4d15dbb2a.tar.gz lwn-225aeb1c5863bc92c6bb1f921e9a6cf4d15dbb2a.zip | |
V4L/DVB (12338): cx18: Read buffer overflow
This mistakenly tested against sizeof(freqs) instead of the array size. Due to
the mask the only illegal value possible was 3.
Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/cx18/cx18-controls.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/video/cx18/cx18-controls.c b/drivers/media/video/cx18/cx18-controls.c index 5136df198338..93f0dae01350 100644 --- a/drivers/media/video/cx18/cx18-controls.c +++ b/drivers/media/video/cx18/cx18-controls.c @@ -20,6 +20,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA * 02111-1307 USA */ +#include <linux/kernel.h> #include "cx18-driver.h" #include "cx18-cards.h" @@ -317,7 +318,7 @@ int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) idx = p.audio_properties & 0x03; /* The audio clock of the digitizer must match the codec sample rate otherwise you get some very strange effects. */ - if (idx < sizeof(freqs)) + if (idx < ARRAY_SIZE(freqs)) cx18_call_all(cx, audio, s_clock_freq, freqs[idx]); return err; } |