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SubjectRe: [PATCH 27/29] overlayfs: move xattr tables to .rodata
On Sat, Sep 30, 2023 at 8:02 AM Wedson Almeida Filho <wedsonaf@gmail.com> wrote:
>
> From: Wedson Almeida Filho <walmeida@microsoft.com>
>
> This makes it harder for accidental or malicious changes to
> ovl_trusted_xattr_handlers or ovl_user_xattr_handlers at runtime.
>
> Cc: Miklos Szeredi <miklos@szeredi.hu>
> Cc: Amir Goldstein <amir73il@gmail.com>
> Cc: linux-unionfs@vger.kernel.org
> Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>

Acked-by: Amir Goldstein <amir73il@gmail.com>

> ---
> fs/overlayfs/super.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
> index cc8977498c48..fe7af47be621 100644
> --- a/fs/overlayfs/super.c
> +++ b/fs/overlayfs/super.c
> @@ -477,13 +477,13 @@ static const struct xattr_handler ovl_other_xattr_handler = {
> .set = ovl_other_xattr_set,
> };
>
> -static const struct xattr_handler *ovl_trusted_xattr_handlers[] = {
> +static const struct xattr_handler * const ovl_trusted_xattr_handlers[] = {
> &ovl_own_trusted_xattr_handler,
> &ovl_other_xattr_handler,
> NULL
> };
>
> -static const struct xattr_handler *ovl_user_xattr_handlers[] = {
> +static const struct xattr_handler * const ovl_user_xattr_handlers[] = {
> &ovl_own_user_xattr_handler,
> &ovl_other_xattr_handler,
> NULL
> --
> 2.34.1
>

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