diff options
| author | Nirmoy Das <nirmoy.das@intel.com> | 2024-03-18 17:43:41 +0100 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2024-03-19 08:33:42 +0000 |
| commit | 4f4fcafde343a54465f85a2909fc684918507a4b (patch) | |
| tree | 338671a77e62f93fbffa048ee6166de5c4b0c9c3 /drivers/gpu/drm/xe/xe_ttm_vram_mgr.c | |
| parent | 1d3c830574dcb2d6b37c82d70cd3027102c0c603 (diff) | |
drm/xe: Fix potential integer overflow in page size calculation
Explicitly cast tbo->page_alignment to u64 before bit-shifting to
prevent overflow when assigning to min_page_size.
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240318164342.3094-1-nirmoy.das@intel.com
Diffstat (limited to 'drivers/gpu/drm/xe/xe_ttm_vram_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_ttm_vram_mgr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c index 115ec745e502..0678faf83212 100644 --- a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c +++ b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c @@ -91,7 +91,7 @@ static int xe_ttm_vram_mgr_new(struct ttm_resource_manager *man, min_page_size = mgr->default_page_size; if (tbo->page_alignment) - min_page_size = tbo->page_alignment << PAGE_SHIFT; + min_page_size = (u64)tbo->page_alignment << PAGE_SHIFT; if (WARN_ON(min_page_size < mm->chunk_size)) { err = -EINVAL; |