Re: [PATCH] io_uring/rsrc: Annotate struct io_mapped_ubuf with __counted_by

From: Jens Axboe
Date: Thu Aug 17 2023 - 21:16:58 EST



On Thu, 17 Aug 2023 14:21:47 -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 io_mapped_ubuf.
>
> [...]

Applied, thanks!

[1/1] io_uring/rsrc: Annotate struct io_mapped_ubuf with __counted_by
commit: 04d9244c9420db33149608a566399176d57690f8

Best regards,
--
Jens Axboe