RHSA-2021:4971: Important: kpatch-patch security update
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.Security Fix(es): kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385) 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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:4971?
RHSA-2021:4971 is classified as important due to a use-after-free vulnerability in the kernel.
How do I fix RHSA-2021:4971?
To fix RHSA-2021:4971, you need to update your kpatch-patch to one of the affected versions provided in the advisory.
What systems are affected by RHSA-2021:4971?
RHSA-2021:4971 affects systems running specific versions of the Red Hat kpatch-patch for kernel live patching.
What does the CVE-2020-36385 vulnerability in RHSA-2021:4971 refer to?
CVE-2020-36385 refers to a use-after-free vulnerability found in the drivers/infiniband/core/ucma.c file.
Will RHSA-2021:4971 require a reboot after applying the fix?
Generally, applying the fix for RHSA-2021:4971 may not require a reboot as it is related to kernel live patching.