RHSA-2022:0820 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

The following packages have been upgraded to a later upstream version: kernel (4.18.0). (BZ#2036933)

Security Fix(es):

• kernel: improper initialization of the "flags" member of the new pipe_buffer (CVE-2022-0847)

• kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)

• kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

• kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)

• kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

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):

• [Intel 8.3 Bug] ICX Whitley: PCIe - kernel panic with AER-INJECT (BZ#2040309)

• [ESXi][RHEL8] A task is stuck waiting for the completion of the vmci_resouce releasing upon the balloon reset. [None8.2.0.z] (BZ#2052200)