RHSA-2021:1093: Important: kernel security, bug fix, and enhancement 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: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374) kernel: Use after free via PI futex state (CVE-2021-3347) kernel: race conditions caused by wrong locking in net/vmwvsock/afvsock.c (CVE-2021-26708) kernel: out-of-bounds read in libiscsi module (CVE-2021-27364) kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365) Kernel: KVM: host stack overflow due to lazy update IOAPIC (CVE-2020-27152) kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363) 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): race condition when creating child sockets from syncookies (BZ#1915529) On System Z, a hash needs state randomized for entropy extraction (BZ#1915816) scsi: target: coretmraborttask() reporting multiple aborts for the same secmd->tag (BZ#1918354) [mlx5] VF interface stats are not reflected in "ip -s link show" / "ifconfig <vf>" commands (BZ#1921060) Win10 guest automatic reboot after migration in Win10 and WSL2 on Intel hosts (BZ#1923281) [RHEL 8.3] Repeated messages - Unable to burst-read optrom segment (BZ#1924222) Backport bug fix RDMA/umem: Prevent small pages from being returned by ibumemfindbestpgsz (BZ#1924691) [Cisco 8.3] RHEL/Cent 8.2 fNIC driver needs a patch fix that addresses crash (BZ#1925186) RHEL8.3 - The kernel misdetects zCX with z/VM (BZ#1925508) Backport 22e4663e91 ("mm/slub: fix panic in slaballocnode()") (BZ#1925511) SCTP "Address already in use" when no active endpoints from RHEL 8.2 onwards (BZ#1927521) lpfc: Fix initial FLOGI failure due to BBSCN not supported (BZ#1927921) [mm] mm, oom: remove oomlock from oomreaper (BZ#1929738) Unexpected thread movement with AMD Milan compared to Rome (BZ#1929740) rpmbuild cannot build the userspace RPMs in the kernel package when the kernel itself is not built (BZ#1929910) [Regression] RHEL8.2 - ISST-LTE:pVM:diapvmlp83:sum:memory DLPAR fails to add memory on multiple trials[mm/memoryhotplug.c:1163] (mm-) (BZ#1930168) Configuring the system with non-RT kernel will hang the system (BZ#1930735) Upstream Patch for Gracefully handle DMAR units with no supported address widthsx86/vt-d (BZ#1932199) gfs2: Deadlock between gfs2{createinode,inodelookup} and deleteworkfunc (BZ#1937109) Failing on tsx-ctrl when the flag doesn't change anything (BZ#1939013) Enhancement(s): RFE: Backport all Audit enhancements and fixes up to version 5.10-rc1 (BZ#1907520) RHEL8.4: Update the target driver (BZ#1918363) [Mellanox 8.4 FEAT] mlx5: Hairpin Support in Switch Mode (BZ#1924689)