Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.16 10/26] drm/i915/gvt: throw error on unhandled vfio ioctls | Date | Wed, 25 Apr 2018 12:33:19 +0200 |
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4.16-stable review patch. If anyone has any objections, please let me know.
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From: Gerd Hoffmann <kraxel@redhat.com>
commit 9f591ae60e1be026901398ef99eede91237aa3a1 upstream.
On unknown/unhandled ioctls the driver should return an error, so userspace knows it tried to use something unsupported.
Cc: stable@vger.kernel.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1284,7 +1284,7 @@ static long intel_vgpu_ioctl(struct mdev } - return 0; + return -ENOTTY; } static ssize_t
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