RHSA-2020:2664: Important: kernel security and bug fix update
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Bug Fix(es): kernel: hw: provide reporting and microcode mitigation toggle for CVE-2020-0543 / Special Register Buffer Data Sampling (SRBDS) (BZ#1827187) kernel BUG at fs/fscache/operation.c:70! FS-Cache: 4 == 5 is false - current state is FSCACHEOPSTCOMPLETE but should be FSCACHEOPCANCELLED in fscacheenqueueoperation (BZ#1839757) Deadlock condition grabbing ssbstate lock (BZ#1841121)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2020:2664?
The severity of RHSA-2020:2664 is classified as important.
How do I fix RHSA-2020:2664?
To fix RHSA-2020:2664, update the kernel packages to version 3.10.0-1127.13.1.el7.
Which devices are affected by the issue in RHSA-2020:2664?
The issue in RHSA-2020:2664 affects devices that utilize VFIO and may lead to a DoS scenario.
Is it necessary to reboot after applying the fix for RHSA-2020:2664?
Yes, a reboot is typically required after applying the fix for RHSA-2020:2664 to ensure the new kernel is loaded.
What does CVE-2020-12888 refer to in relation to RHSA-2020:2664?
CVE-2020-12888 refers to the specific vulnerability that allows access to a disabled MMIO space of certain devices, causing potential denial of service.