Re: [PATCH v6 1/6] KEYS: special dot prefixed keyring name bug fix

[David Howells]

Mimi Zohar <zohar@xxxxxxxxxxxxxxxxxx> wrote:

> Dot prefixed keyring names are supposed to be reserved for the
> kernel, but add_key() calls key_get_type_from_user(), which
> incorrectly verifies the 'type' field, not the 'description' field.
> This patch verifies the 'description' field isn't dot prefixed,
> when creating a new keyring, and removes the dot prefix test in
> key_get_type_from_user().
> 
> Changelog v6:
> - whitespace and other cleanup
> 
> Changelog v5:
> - Only prevent userspace from creating a dot prefixed keyring, not
>   regular keys  - Dmitry
> 
> Reported-by: Dmitry Kasatkin <d.kasatkin@xxxxxxxxxxx>
> Cc: David Howells <dhowells@xxxxxxxxxx>
> Signed-off-by: Mimi Zohar <zohar@xxxxxxxxxxxxxxxxxx>

Acked-by: David Howells <dhowells@xxxxxxxxxx>
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