Loop with Unreachable Exit Condition ('Infinite Loop') Affecting kernel-doc package, versions <0:3.10.0-514.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.06% (28th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELDOC-4645968
  • published 26 Jul 2021
  • disclosed 28 Jul 2016

How to fix?

Upgrade RHEL:7 kernel-doc to version 0:3.10.0-514.el7 or higher.
This issue was patched in RHSA-2016:2574.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

arch/powerpc/kvm/book3s_hv_rmhandlers.S in the Linux kernel through 4.7 on PowerPC platforms, when CONFIG_KVM_BOOK3S_64_HV is enabled, allows guest OS users to cause a denial of service (host OS infinite loop) by making a H_CEDE hypercall during the existence of a suspended transaction.