On Fri, Sep 29, 2023 at 04:40:13PM -0700, Song Liu wrote: > On Fri, Sep 29, 2023 at 12:21 PM Kees Cook <keescook@xxxxxxxxxxxx> wrote: > > > > On Fri, 15 Sep 2023 13:03:28 -0700, Kees Cook wrote: > > > Prepare for the coming implementation by GCC and Clang of the __counted_by > > > attribute. Flexible array members annotated with __counted_by can have > > > their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS > > > (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family > > > functions). > > > > > > As found with Coccinelle[1], add __counted_by for struct linear_conf. > > > Additionally, since the element count member must be set before accessing > > > the annotated flexible array member, move its initialization earlier. > > > > > > [...] > > > > Applied to for-next/hardening, thanks! > > > > [1/1] md/md-linear: Annotate struct linear_conf with __counted_by > > https://git.kernel.org/kees/c/9add7681e09b > > Hmm.. > > Jens pulled this into his for-next branch and for-6.7/block branch > earlier today: > > https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=for-next&id=e887544d7620f1d3cef017e45df7bc625182caff > > Do we need to do anything about this (drop one of them)? Whoops! Sorry, I hadn't seen it picked up. I'll drop it from my tree. Thanks! -Kees -- Kees Cook
