[Bug 55684] New: Null pointer dereference in failure path

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55684

Bug ID: 55684
           Summary: Null pointer dereference in failure path
           Product: vkd3d
           Version: 1.9
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: vkd3d
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

From Coverity report:

/home/akhaldi/wine/libs/vkd3d/libs/vkd3d-shader/dxil.c: 1793 in
sm6_parser_declare_function()
1787             return false;
1788         }
1789         ret_type = fn->type->u.function->ret_type;
1790     
1791         if (!(fn->type = sm6_type_get_pointer_to_type(fn->type,
ADDRESS_SPACE_DEFAULT, sm6)))
1792         {
> > > CID 1546877:  Null pointer dereferences  (FORWARD_NULL)
> > > Dereferencing null pointer "fn->type".

1793             WARN("Failed to get pointer type for type %u.\n",
fn->type->class);
1794             return false;
1795         }
1796     
1797         if (record->operands[1])
1798             WARN("Ignoring calling convention %#"PRIx64".\n",
record->operands[1]);

The issue is obviously in 'fn->type' being reused in a warning message.