A flaw was found in the Linux kernel. The Intel OPA Gen1 driver mishandles resource cleanup. An attacker able to induce low memory condition on the system could use this flaw to crash the system. The highest threat from this vulnerability is to system availability.
In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module hfi1. For instructions relating to how to blacklist a kernel module refer to: <https://access.redhat.com/solutions/41278> .