RHSA-2021:0073 — 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 Moderate. 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.

Security Fix(es):

• kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS (CVE-2020-25641)

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):

• Please backport Jitter Entropy patches (BZ#1884682)

• Sometimes hit "error: kvm run failed Bad address" when launching a guest on Power8 (BZ#1890883)

• [Intel 8.3 BUG] Unable to insert 'i10nm_edac.ko' EDAC kernel module on JVL after CPU upgraded (BZ#1893330)

• RHEL8.1 - Random memory corruption may occur due to incorrect tlbflush (BZ#1899209)

• RHEL8.1 Alpha - ISST-LTE:PNV:Witherspoon-DD2.3:woo: KDUMP hang during shutdown, lpfc loses connection to disks (rootdisk:nvme) (BZ#1900101)

• pmtu of 1280 for vxlan as bridge port won't work (BZ#1902083)

• Allocating domain failed for ehci-pci device (BZ#1902801)

• [Azure][RHEL8] IP forwarding issue in netvsc (BZ#1904326)

• pmtu not working with tunnels as bridge ports and br_netfilter loaded (BZ#1907577)

• [Regression] RHEL8.2 - [kernel 148.el8] cpu (sys) time regression in SAP HANA 2.0 benchmark benchInsertSubSelectPerformance (BZ#1908520)