Red Hat Security Advisory 2016-0224-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. It was found that the Linux kernel's keys subsystem did not correctly garbage collect uninstantiated keyrings. A local attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system. A flaw was found in the way the Linux kernel handled IRET faults during the processing of NMIs. An unprivileged, local user could use this flaw to crash the system or, potentially, escalate their privileges on the system.
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