diff options
| author | Thomas Hellstrom <thomas-at-tungstengraphics-dot-com> | 2006-12-19 23:45:59 +0100 |
|---|---|---|
| committer | Thomas Hellstrom <thomas-at-tungstengraphics-dot-com> | 2006-12-19 23:45:59 +0100 |
| commit | 3b8e6ccd2573a027aa30c10d08253de1756540c2 (patch) | |
| tree | 562ac4490c8521d6be623c8170b7c474bd55b907 /linux-core/drm_compat.c | |
| parent | 72b5d1507a7e9c18fc0141c13819ea01c0813924 (diff) | |
Security fix. Zero pages before they are handed to user space.
TTM pages were not cleared when allocated and handed to user space.
Sensitive information may leak.
Diffstat (limited to 'linux-core/drm_compat.c')
| -rw-r--r-- | linux-core/drm_compat.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/linux-core/drm_compat.c b/linux-core/drm_compat.c index b466f8bd..cde77ea7 100644 --- a/linux-core/drm_compat.c +++ b/linux-core/drm_compat.c @@ -259,6 +259,8 @@ struct page *drm_vm_ttm_nopage(struct vm_area_struct *vma, } ++bm->cur_pages; SetPageLocked(page); + clear_page(kmap(page)); + kunmap(page); } get_page(page); |