Re: [PATCH][next] reiserfs: Replace one-element array with flexible-array member

From: Kees Cook
Date: Wed Jun 21 2023 - 20:05:49 EST


On Wed, Jun 21, 2023 at 04:43:54PM -0600, Gustavo A. R. Silva wrote:
> One-element arrays are deprecated, and we are replacing them with flexible
> array members instead. So, replace one-element array with flexible-array
> member in direntry_uarea structure, and refactor the rest of the code,
> accordingly.
>
> Worth mentioning is that before these changes, the original implementation
> was returning two-too many bytes in function direntry_create_vi():
>
> fs/reiserfs/item_ops.c:464: int size = sizeof(struct direntry_uarea);
> ...
> fs/reiserfs/item_ops.c-490- size += (dir_u->entry_count * sizeof(short));
> ...
> fs/reiserfs/item_ops.c-517- return size;
>
> Link: https://github.com/KSPP/linux/issues/79
> Link: https://github.com/KSPP/linux/issues/290
> Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

--
Kees Cook