Commit 65544319 authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'drm-fixes' of git://

Pull drm/qxl fix from Dave Airlie:
 "Bad me forgot an access check, possible security issue, but since this
  is the first kernel with it, should be fine to just put it in now"

* 'drm-fixes' of git://
  drm/qxl: add missing access check for execbuffer ioctl
parents 706b23bd 18097b91
......@@ -171,6 +171,11 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
if (user_cmd.command_size > PAGE_SIZE - sizeof(union qxl_release_info))
return -EINVAL;
if (!access_ok(VERIFY_READ,
(void *)(unsigned long)user_cmd.command,
return -EFAULT;
ret = qxl_alloc_release_reserved(qdev,
sizeof(union qxl_release_info) +
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