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Date: Tue, 27 Mar 2018 13:37:39 -0400 (EDT)
From: Vladis Dronov <>
Subject: CVE-2018-1091: Linux kernel: a KVM guest kernel crash during core
 dump on POWER9 host


A guest kernel crash can be triggered from unprivileged userspace during core
dump on POWER host due to a missing processor feature check and an erroneous
use of transactional memory (TM) instructions in the core dump path leading to
a denial of service.


An upstream fix:

Best regards,
Vladis Dronov | Red Hat, Inc. | Product Security Engineer

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