On 2018.08.03 08:41:19 +0800, Yi Wang wrote:
> The 'sparse' variable may leak when return in function
> intel_vgpu_ioctl(), and this patch fixes this.
>
> Signed-off-by: Yi Wang <wang.yi59@xxxxxxxxxx>
> Reviewed-by: Jiang Biao <jiang.biao2@xxxxxxxxxx>
> ---
Looks fine to me, will queue this up.
Thanks for the patch!
> drivers/gpu/drm/i915/gvt/kvmgt.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
> index df4e4a0..6a6f199 100644
> --- a/drivers/gpu/drm/i915/gvt/kvmgt.c
> +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
> @@ -1200,6 +1200,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
> return ret;
> break;
> default:
> + kfree(sparse);
> return -EINVAL;
> }
> }
> @@ -1215,6 +1216,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
> sizeof(info), caps.buf,
> caps.size)) {
> kfree(caps.buf);
> + kfree(sparse);
> return -EFAULT;
> }
> info.cap_offset = sizeof(info);
> @@ -1223,6 +1225,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
> kfree(caps.buf);
> }
>
> + kfree(sparse);
> return copy_to_user((void __user *)arg, &info, minsz) ?
> -EFAULT : 0;
> } else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) {
> --
> 1.8.3.1
>
--
Open Source Technology Center, Intel ltd.
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