Eric Biggers <[email protected]> wrote:

> @@ -135,6 +135,9 @@ int install_thread_keyring_to_cred(struct cred *new)
>  {
>       struct key *keyring;
>  
> +     if (new->thread_keyring)
> +             return -EEXIST;
> +
>       keyring = keyring_alloc("_tid", new->uid, new->gid, new,
>                               KEY_POS_ALL | KEY_USR_VIEW,
>                               KEY_ALLOC_QUOTA_OVERRUN,

It would probably be better just to return 0 and change the comment on the
function to say that it sets a thread keyring if there isn't one already.
Same for the process keyring.

David

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