diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/bcm/Bcmchar.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c index 4c4335383977..867c65c4375d 100644 --- a/drivers/staging/bcm/Bcmchar.c +++ b/drivers/staging/bcm/Bcmchar.c @@ -216,7 +216,11 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg) if (copy_from_user(&sRdmBuffer, IoBuffer.InputBuffer, IoBuffer.InputLength)) return -EFAULT; - /* FIXME: need to restrict BuffLen */ + if (IoBuffer.OutputLength > USHRT_MAX || + IoBuffer.OutputLength == 0) { + return -EINVAL; + } + Bufflen = IoBuffer.OutputLength + (4 - IoBuffer.OutputLength%4)%4; temp_buff = kmalloc(Bufflen, GFP_KERNEL); if (!temp_buff) |
