(RHSA-2022:5819) 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: Small table perturb size in the TCP source port generation algorithm can lead to information leak (CVE-2022-1012)

• kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-32250)

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):

• Softirq hrtimers are being placed on the per-CPU softirq clocks on isolcpu’s. (BZ#2090484)

• enable/disable multiqueues repeatedly while ping local host, guest kernel panic (BZ#2093416)

• Backport kernel audit enhancements and fixes from v5.13-rc1 to v5.16-rc6 (BZ#2095434)

• blk_update_request: I/O error, dev nvme0n3, during xfs creation (BZ#2100150)

• SCSI updates for RHEL 8.7 (BZ#2100254)

• Kernel bug on mm/slub.c:314 (BZ#2102251)

• Implement new tc action for check_pkt_len (BZ#2102333)

• too long timeout value with TIME_WAIT status of conntrack entry (BZ#2104002)

• Connectx6-DX, mlx5 , backport 087032ee7021 (“net/mlx5e: TC, Fix ct_clear overwriting ct action metadata”) (BZ#2104012)

• mlx5: Software steering memory allocation failure, netperf TCP_CRR with ct(). (BZ#2104013)

• tcp: request_sock leak in Calico OCP (BZ#2104670)