Re: Keyrings, user namespaces and the user_struct

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Jann Horn <jann@xxxxxxxxx> wrote:

> find_keyring_by_name() checks that the UID of the keyring's owner is mapped into
> the current user namespace. But that doesn't catch the scenario I described:
> The keyring is created in an attacker-created namespace and looked up from the
> init namespace, into which all kuids are mapped.

Ah - gotcha.

David
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