Re: [PATCH] block/keyslot-manager: use kvfree_sensitive()

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On Tue, Jun 16, 2020 at 08:56:54AM -0700, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@xxxxxxxxxx>
> 
> Make blk_ksm_destroy() use the kvfree_sensitive() function (which was
> introduced in v5.8-rc1) instead of open-coding it.
> 
> Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
> ---
>  block/keyslot-manager.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/block/keyslot-manager.c b/block/keyslot-manager.c
> index c2ef41b3147b..35abcb1ec051 100644
> --- a/block/keyslot-manager.c
> +++ b/block/keyslot-manager.c
> @@ -374,8 +374,7 @@ void blk_ksm_destroy(struct blk_keyslot_manager *ksm)
>  	if (!ksm)
>  		return;
>  	kvfree(ksm->slot_hashtable);
> -	memzero_explicit(ksm->slots, sizeof(ksm->slots[0]) * ksm->num_slots);
> -	kvfree(ksm->slots);
> +	kvfree_sensitive(ksm->slots, sizeof(ksm->slots[0]) * ksm->num_slots);
>  	memzero_explicit(ksm, sizeof(*ksm));
>  }
>  EXPORT_SYMBOL_GPL(blk_ksm_destroy);
> -- 

Ping?



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