[lvc-project] [PATCH] mm/zsmalloc: prevent integer overflow in obj_free

[Sergey Senozhatsky]

On (25/03/13 14:51), Anastasia Belova wrote:
> The result of multiplication of class_size and f_objidx
> may not fit unsigned integer. Add explicit casting to
> unsigned long to prevent integer overflow.

I can't see how this can be possible.  Neither size_class nor
object idx can take values to cause mul overflow.