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drm/vmwgfx: Fix nasty write past alloced memory area
author
Thomas Hellstrom
<thellstrom@vmware.com>
Fri, 1 Jun 2012 13:48:04 +0000
(15:48 +0200)
committer
Dave Airlie
<airlied@redhat.com>
Fri, 1 Jun 2012 16:00:20 +0000
(17:00 +0100)
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
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diff --git
a/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
index 51c9ba5cd2fbff85f4411ec6629f112ad8373a70..21ee7822656041c2e99c7f8f549038034f56c6ce 100644
(file)
--- a/
drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
+++ b/
drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
@@
-66,7
+66,7
@@
static int vmw_gmr2_bind(struct vmw_private *dev_priv,
cmd += sizeof(remap_cmd) / sizeof(uint32);
for (i = 0; i < num_pages; ++i) {
- if (VMW_PPN_SIZE
>
4)
+ if (VMW_PPN_SIZE
<=
4)
*cmd = page_to_pfn(*pages++);
else
*((uint64_t *)cmd) = page_to_pfn(*pages++);