RHSA-2021:3057: 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: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609) kernel: Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543) kernel: out-of-bounds write in xtcompattargetfromuser() in net/netfilter/xtables.c (CVE-2021-22555) 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): Urgent: Missing dptfpower.ko module in RHEL8 (BZ#1968381) [mlx5] kdump over NFS fails: mlx5 driver gives error "Stop room 95 is bigger than the SQ size 64" (BZ#1969909) BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 in bluetooth hcierrorreset on intel-tigerlake-h01 (BZ#1972564) Update CIFS to kernel 5.10 (BZ#1973637) Backport "tick/nohz: Conditionally restart tick on idle exit" to RHEL 8.5 (BZ#1978710) Significant performance drop starting on kernel-4.18.0-277 visible on mmap benchmark (BZ#1980314) Inaccessible NFS server overloads clients (nativequeuedspinlockslowpath connotation?) (BZ#1980613) [RHEL8.4 BUG],RialtoMLK, I915 graphic driver failed to boot with one new 120HZ panel (BZ#1981250) actct: subject to DNAT tuple collision (BZ#1982494) Enhancement(s): [Lenovo 8.5 FEAT] drivers/nvme - Update to the latest upstream (BZ#1965415)