On Fri, Sep 15, 2023 at 1:27 PM Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx> wrote: > > > > On 9/15/23 14:03, 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. > > > > [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci > > > > Cc: Song Liu <song@xxxxxxxxxx> > > Cc: linux-raid@xxxxxxxxxxxxxxx > > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> > > Reviewed-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx> Applied to md-next. Thanks! Song
