On Fri, Dec 15, 2017 at 12:44:17PM -0800, Eric Biggers wrote:
> From: David Howells <dhowells@xxxxxxxxxx>
>
> commit 911b79cde95c7da0ec02f48105358a36636b7a71 upstream.
> [Please apply to 3.18-stable and 4.1-stable.]
>
> If request_key() is used to find a keyring, only do the search part - don't
> do the construction part if the keyring was not found by the search. We
> don't really want keyrings in the negative instantiated state since the
> rejected/negative instantiation error value in the payload is unioned with
> keyring metadata.
>
> Now the kernel gives an error:
>
> request_key("keyring", "#selinux,bdekeyring", "keyring", KEY_SPEC_USER_SESSION_KEYRING) = -1 EPERM (Operation not permitted)
>
> Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
> Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
> ---
> security/keys/request_key.c | 3 +++
> 1 file changed, 3 insertions(+)
Now applied to 3.18, thanks.
greg k-h