diff options
Diffstat (limited to 'drivers/platform/chrome/cros_ec_dev.c')
| -rw-r--r-- | drivers/platform/chrome/cros_ec_dev.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/platform/chrome/cros_ec_dev.c b/drivers/platform/chrome/cros_ec_dev.c index d45cd254ed1c..6d8ee3b15872 100644 --- a/drivers/platform/chrome/cros_ec_dev.c +++ b/drivers/platform/chrome/cros_ec_dev.c @@ -137,6 +137,10 @@ static long ec_device_ioctl_xcmd(struct cros_ec_dev *ec, void __user *arg) if (copy_from_user(&u_cmd, arg, sizeof(u_cmd))) return -EFAULT; + if ((u_cmd.outsize > EC_MAX_MSG_BYTES) || + (u_cmd.insize > EC_MAX_MSG_BYTES)) + return -EINVAL; + s_cmd = kmalloc(sizeof(*s_cmd) + max(u_cmd.outsize, u_cmd.insize), GFP_KERNEL); if (!s_cmd) @@ -208,6 +212,9 @@ static const struct file_operations fops = { .release = ec_device_release, .read = ec_device_read, .unlocked_ioctl = ec_device_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = ec_device_ioctl, +#endif }; static void __remove(struct device *dev) |