At Wed, 28 Jul 2010 20:41:56 +0400, Kulikov Vasiliy wrote:
get_user() may fail, if so return -EFAULT.
Signed-off-by: Kulikov Vasiliy segooon@gmail.com
Thanks, applied this one, too.
Takashi
sound/pci/asihpi/hpioctl.c | 17 +++++++++++++---- 1 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c index 3114999..62895a7 100644 --- a/sound/pci/asihpi/hpioctl.c +++ b/sound/pci/asihpi/hpioctl.c @@ -121,11 +121,17 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) phpi_ioctl_data = (struct hpi_ioctl_linux __user *)arg;
/* Read the message and response pointers from user space. */
- get_user(puhm, &phpi_ioctl_data->phm);
- get_user(puhr, &phpi_ioctl_data->phr);
if (get_user(puhm, &phpi_ioctl_data->phm) ||
get_user(puhr, &phpi_ioctl_data->phr)) {err = -EFAULT;goto out;}
/* Now read the message size and data from user space. */
- get_user(hm->h.size, (u16 __user *)puhm);
- if (get_user(hm->h.size, (u16 __user *)puhm)) {
err = -EFAULT;goto out;- } if (hm->h.size > sizeof(*hm)) hm->h.size = sizeof(*hm);
@@ -138,7 +144,10 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) goto out; }
- get_user(res_max_size, (u16 __user *)puhr);
- if (get_user(res_max_size, (u16 __user *)puhr)) {
err = -EFAULT;goto out;- } /* printk(KERN_INFO "user response size %d\n", res_max_size); */ if (res_max_size < sizeof(struct hpi_response_header)) { HPI_DEBUG_LOG(WARNING, "small res size %d\n", res_max_size);
-- 1.7.0.4