Robuta

https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1499828.html [PATCH v3 1/7] KEYS: don't let add_key() update an uninstantiated key https://www.openwall.com/lists/oss-security/2015/10/20/5 oss-security - CVE request: crash when attempt to garbage collect an uninstantiated keyring