The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: * kernel: Use-after-free due to race condition in AF_PACKET implementation * kernel: userfaultfd bypasses tmpfs file permissions For more details about the security issue, including the impact, a CVSS score, and other related information, refer to the CVE page listed in the References section. Bug Fix: These updated kernel packages include also numerous bug fixes and enhancements. Space precludes documenting all of the bug fixes in this advisory. See the descriptions in the related Knowledge Article: https://access.redhat.com/articles/3827321