diff options
| author | Shaohua Li <shaohua.li@intel.com> | 2009-04-20 10:08:35 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-05-02 10:24:33 -0700 |
| commit | 28adca7b3ca1cfd63b01e1a8da30a234282aa05c (patch) | |
| tree | a85721333879816b66c75dc894bc6cc683cb332e | |
| parent | 7441eb5de330b68535f68c0427f80fcb76040193 (diff) | |
agp: zero pages before sending to userspace
upstream commit: 59de2bebabc5027f93df999d59cc65df591c3e6e
CVE-2009-1192
AGP pages might be mapped into userspace finally, so the pages should be
set to zero before userspace can use it. Otherwise there is potential
information leakage.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/char/agp/generic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c index 118dbde25dc..8cf3dca17dd 100644 --- a/drivers/char/agp/generic.c +++ b/drivers/char/agp/generic.c @@ -1207,7 +1207,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge) { struct page * page; - page = alloc_page(GFP_KERNEL | GFP_DMA32); + page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO); if (page == NULL) return NULL; |