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authorThomas Hellstrom <thellstrom@vmware.com>2019-01-31 10:52:21 +0100
committerThomas Hellstrom <thellstrom@vmware.com>2019-02-05 13:51:57 +0100
commit51fdbeb4ca1a8415c98f87cb877956ae83e71627 (patch)
tree95511b7c036fda53a2a54c069805e69f697469f5 /drivers/gpu
parent728354c005c36eaf44b6e5552372b67e60d17f56 (diff)
downloadlinux-51fdbeb4ca1a8415c98f87cb877956ae83e71627.tar.bz2
drm/vmwgfx: Fix an uninitialized fence handle value
if vmw_execbuf_fence_commands() fails, The handle value will be uninitialized and a bogus fence handle might be copied to user-space. Cc: <stable@vger.kernel.org> Fixes: 2724b2d54cda: ("drm/vmwgfx: Use new validation interface for the modesetting code v2") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> #v1 Reviewed-by: Sinclair Yeh <syeh@vmware.com> #v1 Reviewed-by: Deepak Rawat <drawat@vmware.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_kms.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index b351fb5214d3..5e257a600cea 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -2554,8 +2554,8 @@ void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
user_fence_rep)
{
struct vmw_fence_obj *fence = NULL;
- uint32_t handle;
- int ret;
+ uint32_t handle = 0;
+ int ret = 0;
if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
out_fence)