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Start learningUpgrade RHEL:8
kernel-zfcpdump
to version 0:4.18.0-80.11.1.el8_0 or higher.
This issue was patched in RHSA-2019:2703
.
Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump
package and not the kernel-zfcpdump
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.