On Wed, Sep 15, 2004 at 03:00:16PM -0700, William Lee Irwin III wrote:Could this "garbage" possibly be confidential data?
William Lee Irwin III <wli@xxxxxxxxxxxxxx> wrote:
On Wed, Sep 15, 2004 at 02:55:24PM -0700, Andrew Morton wrote:Zeroing the final partial page during expanding truncate (flushing TLB)
sounds like a reasonable half measure; we don't do anything at the moment.
Sure about that? block_truncate_page() gets called.So it does; then the hard parts are what's biting aa.
block_truncate_page is unrelated with this issue, it's called on the
_new_ partial page generated by truncate, not on the _old_ partial page
that is being extended to be a _full_ page (with garbage inside between
the old_i_size and PAGE_ALIGN(old_i_size)).