(RHSA-2021:2185) 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: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)

• kernel: Integer overflow in Intel® Graphics Drivers (CVE-2020-12362)

• kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)

• kernel: DoS by corrupting mountpoint reference counter (CVE-2020-12114)

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):

• RHEL8.3 - Include patch: powerpc/pci: Remove LSI mappings on device teardown (xive/pci) (BZ#1931925)

• RHEL8.2 - [P10][Denali] System crash during a perf sanity test (perf:) (BZ#1933995)

• [RHEL 8.1] AMD/EPYC nested guest virtualization L1 guest crash (BZ#1945404)

• [HPEMC 8.1 REGRESSION] skx_uncore: probe of 0008:80:08.0 failed with error -22 (BZ#1947114)

• iperf3 over geneve created on vlan would fail (BZ#1947979)

• [Azure][RHEL-8]Mellanox Patches To Prevent Kernel Hang In MLX4 (BZ#1952071)

• [HPEMC 8.4 REGRESSION]: perf/x86/intel/uncore kernel panic vulnerability on Haswell and Broadwell servers (BZ#1956685)